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Table of Contents
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
________________________________________________________
FORM 10-Q
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2023
or
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
FOR THE TRANSITION PERIOD FROM    TO   
Commission file number 000-19319
____________________________________________
Vertex Pharmaceuticals Incorporated
(Exact name of registrant as specified in its charter)

Massachusetts
(State or other jurisdiction of incorporation or organization)

50 Northern Avenue, Boston, Massachusetts
(Address of principal executive offices)

04-3039129
(I.R.S. Employer Identification No.)

02210
(Zip Code)

Registrant’s telephone number, including area code (617341-6100
____________________________________________
Securities registered pursuant to Section 12(b) of the Act:
Title of each class
Trading Symbol
Name of each exchange on which registered
Common Stock, $0.01 Par Value Per Share
VRTX
The Nasdaq Global Select Market
Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  Yes  No 
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).  Yes No 
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
Large accelerated filer Accelerated filer Non-accelerated filer Smaller reporting company Emerging growth company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes  No  
Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.
Common Stock, par value $0.01 per share
257,683,184
Outstanding at October 31, 2023


Table of Contents
VERTEX PHARMACEUTICALS INCORPORATED
FORM 10-Q
FOR THE QUARTER ENDED SEPTEMBER 30, 2023

TABLE OF CONTENTS
Page
Condensed Consolidated Statements of Income - Three and Nine Months Ended September 30, 2023 and 2022
Condensed Consolidated Statements of Comprehensive Income - Three and Nine Months Ended September 30, 2023 and 2022
Condensed Consolidated Balance Sheets - September 30, 2023 and December 31, 2022
Condensed Consolidated Statements of Shareholders' Equity - Three and Nine Months Ended September 30, 2023 and 2022
Condensed Consolidated Statements of Cash Flows - Nine Months Ended September 30, 2023 and 2022
Item 1A.

“Vertex,” “we,” “us,” and “our” as used in this Quarterly Report on Form 10-Q refer to Vertex Pharmaceuticals Incorporated, a Massachusetts corporation, and its subsidiaries.
“Vertex®,” “KALYDECO®,” “ORKAMBI®,” “SYMDEKO®,” “SYMKEVI®,” “TRIKAFTA®” and “KAFTRIO®” are registered trademarks of Vertex. Other brands, names and trademarks contained in this Quarterly Report on Form 10-Q are the property of their respective owners.
We use the brand name for our products when we refer to the product that has been approved and with respect to the indications on the approved label. Otherwise, including in discussions of our development programs, we refer to our compounds by their scientific (or generic) name or VX developmental designation.



Table of Contents
Part I. Financial Information

Item 1.  Financial Statements
VERTEX PHARMACEUTICALS INCORPORATED
Condensed Consolidated Statements of Income
(in millions, except per share amounts)(unaudited)

Three Months Ended September 30,Nine Months Ended September 30,
2023202220232022
Product revenues, net$2,483.5 $2,334.3 $7,351.5 $6,628.0 
Costs and expenses:
Cost of sales318.7 289.4 894.2 797.0 
Research and development expenses810.0 645.0 2,338.3 1,846.2 
Acquired in-process research and development expenses51.7 29.0 509.3 92.9 
Selling, general and administrative expenses263.8 246.8 767.5 677.3 
Change in fair value of contingent consideration1.2 (2.6)(1.3)(59.3)
Total costs and expenses1,445.4 1,207.6 4,508.0 3,354.1 
Income from operations1,038.1 1,126.7 2,843.5 3,273.9 
Interest income167.9 46.2 435.2 58.6 
Interest expense(10.9)(13.7)(33.5)(43.2)
Other (expense) income, net(15.9)17.2 (13.0)(133.7)
Income before provision for income taxes1,179.2 1,176.4 3,232.2 3,155.6 
Provision for income taxes143.9 245.9 581.4 652.5 
Net income$1,035.3 $930.5 $2,650.8 $2,503.1 
Net income per common share:
Basic$4.01 $3.63 $10.29 $9.78 
Diluted$3.97 $3.59 $10.18 $9.68 
Shares used in per share calculations:
Basic258.0 256.5 257.7 255.8 
Diluted260.6 259.5 260.4 258.7 
The accompanying notes are an integral part of these condensed consolidated financial statements.

2

Table of Contents
VERTEX PHARMACEUTICALS INCORPORATED
Condensed Consolidated Statements of Comprehensive Income
(in millions)(unaudited)
Three Months Ended September 30,Nine Months Ended September 30,
2023202220232022
Net income$1,035.3 $930.5 $2,650.8 $2,503.1 
Other comprehensive income (loss):
Unrealized holding losses on marketable securities, net of tax of $1.7, zero, $5.2 and zero, respectively
(6.2)(0.6)(18.8)(3.6)
Unrealized gains on foreign currency forward contracts, net of tax of $(13.2), $(16.0), $(1.6) and $(34.3), respectively
48.0 58.8 5.9 128.1 
Foreign currency translation adjustment(5.0)(18.1)9.1 (42.8)
Total other comprehensive income (loss)
36.8 40.1 (3.8)81.7 
Comprehensive income$1,072.1 $970.6 $2,647.0 $2,584.8 
The accompanying notes are an integral part of these condensed consolidated financial statements.

3

Table of Contents
VERTEX PHARMACEUTICALS INCORPORATED
Condensed Consolidated Balance Sheets
(in millions, except share data)(unaudited)
September 30, 2023December 31, 2022
Assets
Current assets:
Cash and cash equivalents$11,110.2 $10,504.0 
Marketable securities818.0 274.5 
Accounts receivable, net1,538.7 1,442.2 
Inventories688.7 460.6 
Prepaid expenses and other current assets
540.2 553.5 
Total current assets
14,695.8 13,234.8 
Property and equipment, net1,124.0 1,108.4 
Goodwill1,088.0 1,088.0 
Intangible assets
603.6 603.6 
Deferred tax assets
1,729.1 1,246.9 
Operating lease assets
310.5 347.4 
Long-term marketable securities1,700.0 112.2 
Other assets
475.2 409.6 
Total assets
$21,726.2 $18,150.9 
Liabilities and Shareholders’ Equity
Current liabilities:
Accounts payable$375.9 $303.9 
Accrued expenses2,907.3 2,126.7 
Other current liabilities
316.2 311.5 
Total current liabilities
3,599.4 2,742.1 
Long-term finance lease liabilities390.3 430.8 
Long-term operating lease liabilities354.4 379.5 
Other long-term liabilities
869.3 685.8 
Total liabilities
5,213.4 4,238.2 
Commitments and contingencies  
Shareholders’ equity:
Preferred stock, $0.01 par value; 1,000,000 shares authorized; none issued and outstanding
  
Common stock, $0.01 par value; 500,000,000 shares authorized, 257,828,508 and 257,011,628 shares issued and outstanding, respectively
2.6 2.6 
Additional paid-in capital7,339.6 7,386.5 
Accumulated other comprehensive (loss) income(3.0)0.8 
Retained earnings
9,173.6 6,522.8 
Total shareholders’ equity
16,512.8 13,912.7 
Total liabilities and shareholders’ equity
$21,726.2 $18,150.9 
The accompanying notes are an integral part of these condensed consolidated financial statements.

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VERTEX PHARMACEUTICALS INCORPORATED
Condensed Consolidated Statements of Shareholders’ Equity
(in millions)(unaudited)
Three Months Ended
Common StockAdditional Paid-in CapitalAccumulated Other Comprehensive Income (Loss)Retained EarningsTotal Shareholders’ Equity
SharesAmount
Balance at June 30, 2022256.0 $2.6 $7,100.0 $57.5 $4,773.4 $11,933.5 
Other comprehensive income, net of tax— — — 40.1 — 40.1 
Net income— — — — 930.5 930.5 
Common stock withheld for employee tax obligations(0.2)(0.0)(48.0)— — (48.0)
Issuance of common stock under benefit plans0.8 0.0 38.2 — — 38.2 
Stock-based compensation expense
— — 135.3 — — 135.3 
Balance at September 30, 2022256.6 $2.6 $7,225.5 $97.6 $5,703.9 $13,029.6 
Balance at June 30, 2023257.8 $2.6 $7,369.1 $(39.8)$8,138.3 $15,470.2 
Other comprehensive income, net of tax— — — 36.8 — 36.8 
Net income— — — — 1,035.3 1,035.3 
Repurchase of common stock(0.4)(0.0)(123.0)— — (123.0)
Common stock withheld for employee tax obligations(0.1)(0.0)(53.2)— — (53.2)
Issuance of common stock under benefit plans0.5 0.0 15.0 — — 15.0 
Stock-based compensation expense
— — 131.7 — — 131.7 
Balance at September 30, 2023257.8 $2.6 $7,339.6 $(3.0)$9,173.6 $16,512.8 
Nine Months Ended
Common StockAdditional Paid-in CapitalAccumulated Other Comprehensive Income (Loss)Retained EarningsTotal Shareholders’ Equity
SharesAmount
Balance at December 31, 2021254.5 $2.5 $6,880.8 $15.9 $3,200.8 $10,100.0 
Other comprehensive income, net of tax— — — 81.7 — 81.7 
Net income
— — — — 2,503.1 2,503.1 
Common stock withheld for employee tax obligations(0.7)(0.0)(169.9)— — (169.9)
Issuance of common stock under benefit plans2.8 0.1 135.2 — — 135.3 
Stock-based compensation expense
— — 379.4 — — 379.4 
Balance at September 30, 2022256.6 $2.6 $7,225.5 $97.6 $5,703.9 $13,029.6 
Balance at December 31, 2022257.0 $2.6 $7,386.5 $0.8 $6,522.8 $13,912.7 
Other comprehensive loss, net of tax— — — (3.8)— (3.8)
Net income
— — — — 2,650.8 2,650.8 
Repurchase of common stock(0.9)(0.0)(284.1)— — (284.1)
Common stock withheld for employee tax obligations(0.7)(0.0)(222.9)— — (222.9)
Issuance of common stock under benefit plans2.4 0.0 85.7 — — 85.7 
Stock-based compensation expense
— — 374.4 — — 374.4 
Balance at September 30, 2023257.8 $2.6 $7,339.6 $(3.0)$9,173.6 $16,512.8 
The accompanying notes are an integral part of these condensed consolidated financial statements.

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VERTEX PHARMACEUTICALS INCORPORATED
Condensed Consolidated Statements of Cash Flows
(in millions)(unaudited)
Nine Months Ended September 30,
20232022
Cash flows from operating activities:
Net income
$2,650.8 $2,503.1 
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation expense372.6 379.8 
Depreciation expense122.3 109.9 
Deferred income taxes(405.5)(424.0)
Losses on equity securities0.2 143.1 
Decrease in fair value of contingent consideration(1.3)(59.3)
Other non-cash items, net(9.6)(32.8)
Changes in operating assets and liabilities:
Accounts receivable, net(99.5)(368.8)
Inventories(252.9)(58.1)
Prepaid expenses and other assets(94.4)(41.9)
Accounts payable80.5 (39.1)
Accrued expenses786.1 980.3 
Other liabilities153.4 (40.7)
Net cash provided by operating activities
3,302.7 3,051.5 
Cash flows from investing activities:
Purchases of available-for-sale debt securities(2,798.0)(417.8)
Sales and maturities of available-for-sale debt securities621.0 435.9 
Purchases of property and equipment(142.3)(171.1)
Sale of equity securities95.1  
Investment in equity securities and notes receivable(31.0)(47.8)
Payment to acquire ViaCyte, Inc., net of cash acquired (295.9)
Net cash used in investing activities
(2,255.2)(496.7)
Cash flows from financing activities:
Issuances of common stock under benefit plans88.2 134.7 
Repurchases of common stock
(278.1) 
Payments in connection with common stock withheld for employee tax obligations
(222.9)(169.9)
Payments on finance leases
(32.9)(75.1)
Other financing activities3.3 2.4 
Net cash used in financing activities
(442.4)(107.9)
Effect of changes in exchange rates on cash
(0.5)(70.0)
Net increase in cash, cash equivalents and restricted cash604.6 2,376.9 
Cash, cash equivalents and restricted cash—beginning of period
10,512.0 6,800.1 
Cash, cash equivalents and restricted cash—end of period
$11,116.6 $9,177.0 
Supplemental disclosure of cash flow information:
Cash paid for income taxes
$919.1 $840.1 
Cash paid for interest
$32.6 $41.1 
The accompanying notes are an integral part of these condensed consolidated financial statements.
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VERTEX PHARMACEUTICALS INCORPORATED
Notes to Condensed Consolidated Financial Statements (unaudited)

A.Basis of Presentation and Accounting Policies
Basis of Presentation
The accompanying condensed consolidated financial statements are unaudited and have been prepared by Vertex Pharmaceuticals Incorporated (“Vertex,” “we,” “us” or “our”) in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”).
The condensed consolidated financial statements reflect the operations of Vertex and our wholly-owned subsidiaries. All material intercompany balances and transactions have been eliminated. We have reclassified certain items from the prior year’s condensed consolidated balance sheet to conform to the current year’s presentation. We operate in one segment, pharmaceuticals.
Certain information and footnote disclosures normally included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2022 (the “2022 Annual Report on Form 10-K”) have been condensed or omitted. These interim financial statements, in the opinion of management, reflect all normal recurring adjustments necessary for a fair presentation of the financial position and results of income for the interim periods ended September 30, 2023 and 2022.
The results of operations for the interim periods are not necessarily indicative of the results of operations to be expected for the full fiscal year. These interim financial statements should be read in conjunction with the audited financial statements for the year ended December 31, 2022, which are contained in our 2022 Annual Report on Form 10-K.
Use of Estimates
The preparation of condensed consolidated financial statements in accordance with U.S. GAAP requires us to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of our condensed consolidated financial statements, and the amounts of revenues and expenses during the reported periods. We base our estimates on historical experience and various other assumptions, including in certain circumstances future projections that we believe to be reasonable under the circumstances. Actual results could differ from those estimates. Changes in estimates are reflected in reported results in the period in which they become known.
Recently Adopted and Issued Accounting Standards
For a discussion of recently adopted accounting pronouncements please refer to Note A, “Nature of Business and Accounting Policies,” in our 2022 Annual Report on Form 10-K. We do not expect any recently issued accounting standards to have a significant impact on our condensed consolidated financial statements.
Summary of Significant Accounting Policies
Our significant accounting policies are described in Note A, “Nature of Business and Accounting Policies,” in our 2022 Annual Report on Form 10-K.


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VERTEX PHARMACEUTICALS INCORPORATED
Notes to Condensed Consolidated Financial Statements (unaudited)
B.Revenue Recognition
Disaggregation of Revenue
Revenues by Product
“Product revenues, net” consisted of the following:
Three Months Ended September 30,Nine Months Ended September 30,
2023202220232022
(in millions)
TRIKAFTA/KAFTRIO$2,274.3 $2,010.5 $6,611.4 $5,665.3 
KALYDECO112.8 139.4 363.1 417.1 
ORKAMBI63.0 146.2 281.8 399.9 
SYMDEKO/SYMKEVI33.4 38.2 95.2 145.7 
Total product revenues, net$2,483.5 $2,334.3 $7,351.5 $6,628.0 
Product Revenues by Geographic Location
“Product revenues, net” by geographic region, based on the location of the customer, consisted of the following:
Three Months Ended September 30,Nine Months Ended September 30,
2023202220232022
(in millions)
United States$1,554.2 $1,455.6 $4,465.8 $4,238.9 
Outside of the United States
Europe766.5 730.5 2,373.7 2,018.3 
Other
162.8 148.2 512.0 370.8 
Total product revenues outside of the United States929.3 878.7 2,885.7 2,389.1 
Total product revenues, net
$2,483.5 $2,334.3 $7,351.5 $6,628.0 
Contract Liabilities
We had contract liabilities of $157.1 million and $159.6 million as of September 30, 2023 and December 31, 2022, respectively, related to annual contracts with government-owned and supported customers in international markets that limit the amount of annual reimbursement we can receive. Upon exceeding the annual reimbursement amount, products are provided free of charge, which is a material right. These contracts include upfront payments and fees. We defer a portion of the consideration received for shipments made up to the annual reimbursement limit as a portion of “Other current liabilities.” The deferred amount is recognized as revenue when the free products are shipped. Our product revenue contracts include performance obligations that are one year or less.
Our contract liabilities at the end of each fiscal year relate to contracts with annual reimbursement limits in international markets in which the annual period associated with the contract is not the same as our fiscal year. In these markets, we recognize revenues related to performance obligations satisfied in previous years; however, these revenues do not relate to any performance obligations that were satisfied more than 12 months prior to the beginning of the current year.


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VERTEX PHARMACEUTICALS INCORPORATED
Notes to Condensed Consolidated Financial Statements (unaudited)
C.Acquired In-Process Research and Development and Other Arrangements
We have entered into numerous agreements with third parties to collaborate on research, development and commercialization programs, license technologies, or acquire assets. Our “Acquired in-process research and development expenses” included $51.7 million and $509.3 million for the three and nine months ended September 30, 2023, respectively, and $29.0 million and $92.9 million, for the three and nine months ended September 30, 2022, respectively, related to upfront, contingent milestone, or other payments pursuant to our business development transactions, including collaborations, licenses of third-party technologies, and asset acquisitions that qualify as in-process research and development.
Our collaboration, licensing and asset acquisition agreements that had a significant impact on our financial statements for the three and nine months ended September 30, 2023 and 2022, or were new or materially revised during the three and nine months ended September 30, 2023, are described below. Additional agreements were described in Note B, “Acquired In-Process Research and Development and Other Arrangements,” of our 2022 Annual Report on Form 10-K.
In-license Agreements
We have entered into several in-license agreements to advance and obtain access to technologies and services related to our research and early-development activities. We are generally required to make an upfront payment upon execution of our license agreements; development, regulatory and commercialization milestones payments upon the achievement of certain product research, development and commercialization objectives; and royalty payments on future sales, if any, of commercial products resulting from our collaborations.
Pursuant to the terms of our in-license agreements, our collaborators typically lead the discovery efforts and we lead all preclinical, development and commercialization activities associated with the advancement of any product candidates and fund all expenses.
We typically can terminate our in-license agreements by providing advance notice to our collaborators. Our license agreements may be terminated by either party for a material breach by the other, subject to notice and cure provisions. Unless earlier terminated, these license agreements generally remain in effect until the date on which the royalty term and all payment obligations with respect to all products in all countries have expired.
CRISPR Therapeutics AG
CRISPR-Cas9 Gene-editing Therapies Agreements
In 2015, we entered into a strategic collaboration, option, and license agreement (the “CRISPR Agreement”) with CRISPR Therapeutics AG and its affiliates (“CRISPR”) to collaborate on the discovery and development of potential new treatments aimed at the underlying genetic causes of human diseases using CRISPR-Cas9 gene-editing technology. We had the exclusive right to license certain targets. In 2019, we elected to exclusively license three targets, including cystic fibrosis, pursuant to the CRISPR Agreement. For each of the three targets that we elected to license, CRISPR has the potential to receive up to an additional $410.0 million in development, regulatory and commercial milestones as well as royalties on resulting net product sales.
In 2017, we entered into a joint development and commercialization agreement with CRISPR (the “CRISPR JDCA”), which we amended and restated in 2021, pursuant to the terms of the CRISPR Agreement. Under the CRISPR JDCA, we and CRISPR are co-developing and preparing to co-commercialize exagamglogene autotemcel (“exa-cel”), for the treatment of hemoglobinopathies, including treatments for sickle cell disease and transfusion-dependent beta thalassemia. Pursuant to the CRISPR JDCA, we lead global development, manufacturing, and commercialization of exa-cel, with support from CRISPR. We also conduct all research, development, manufacturing, and commercialization activities relating to other product candidates and products under the CRISPR JDCA throughout the world subject to CRISPR’s reserved right to conduct certain activities.
In connection with the CRISPR JDCA, CRISPR has the potential to receive a one-time $200.0 million milestone payment upon receipt of the first marketing approval of exa-cel from the U.S. Food and Drug Administration or the European Commission.
We account for the CRISPR JDCA as a cost-sharing arrangement, with costs incurred related to exa-cel allocated 60% to us and 40% to CRISPR, subject to certain adjustments. We recognized the net impact of the CRISPR JDCA as “Research and

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VERTEX PHARMACEUTICALS INCORPORATED
Notes to Condensed Consolidated Financial Statements (unaudited)
development expenses” of $74.9 million and $45.5 million during the three months ended September 30, 2023 and 2022, respectively, and $193.2 million and $120.6 million during the nine months ended September 30, 2023 and 2022, respectively; and as “Selling, general and administrative expenses” of $26.0 million and $13.5 million during the three months ended September 30, 2023 and 2022, respectively, and $66.1 million and $35.3 million during the nine months ended September 30, 2023 and 2022, respectively.
In March 2023, we entered into a non-exclusive license agreement (“the CRISPR T1D Agreement”) for the use of CRISPR’s CRISPR-Cas9 gene-editing technology to accelerate the development of our hypoimmune cell therapies for type 1 diabetes. Pursuant to the CRISPR T1D Agreement, we made a $100.0 million upfront payment to CRISPR. In the second quarter of 2023, we achieved a research milestone that resulted in a $70.0 million payment to CRISPR in the third quarter of 2023. CRISPR is eligible to receive up to an additional $160.0 million in research, development, regulatory and commercial milestones for any products that may result from the agreement, as well as royalties on resulting net product sales. We determined that substantially all the fair value of the collaboration agreement was attributable to in-process research and development and no substantive processes were acquired that would constitute a business. We concluded that there is no alternative future use for the acquired in-process research and development and recorded the upfront payment and the research milestone to “Acquired in-process research and development expenses” in the first and second quarters of 2023, respectively, resulting in $170.0 million of “Acquired in-process research and development expenses” in the nine months ended September 30, 2023.
Entrada Therapeutics, Inc.
In February 2023, we closed a strategic collaboration and license agreement (the “Entrada Agreement”) with Entrada Therapeutics, Inc. (“Entrada”) focused on discovering and developing intracellular Endosomal Escape Vehicle (EEV) therapeutics for myotonic dystrophy type 1 (“DM1”). Upon closing, we made an upfront payment of $225.1 million to Entrada, and purchased $24.9 million of Entrada’s common stock in connection with the Entrada Agreement. Entrada is eligible to receive up to an additional $485.0 million in research, development, regulatory and commercial milestones for any products that may result from the Entrada Agreement, as well as royalties on resulting net product sales. We determined that substantially all the fair value of the collaboration agreement was attributable to in-process research and development and no substantive processes were acquired that would constitute a business. We concluded that there is no alternative future use for the acquired in-process research and development and recorded the upfront payment to “Acquired in-process research and development expenses” in the first quarter of 2023. The investment in Entrada’s common stock is recorded at fair value on our condensed consolidated balance sheet within “Marketable securities.”
Verve Therapeutics, Inc.
In July 2022, we entered into a research collaboration with Verve Therapeutics, Inc. (“Verve”) focused on discovering and developing an in vivo gene-editing program for a liver disease. Under the terms of the agreement, we made a $25.0 million upfront payment to Verve and purchased $35.0 million of Verve’s common stock. We concluded that there is no alternative future use for the acquired in-process research and development and recorded the upfront payment to “Acquired in-process research and development expenses.” The investment in Verve’s common stock is recorded at fair value on our condensed consolidated balance sheet within “Marketable securities.”
Asset Acquisitions
Septerna, Inc. - Novel G Protein-coupled Receptor Program
In September 2023, pursuant to an asset purchase agreement, we acquired a novel G protein-coupled receptor (“GPCR”) program from Septerna, Inc. We determined that substantially all the fair value acquired is concentrated in the GPCR in-process research and development asset, which does not constitute a business, and for which we determined there is no alternative future use. As a result, we recorded $47.5 million to “Acquired in-process research and development expenses” in the three and nine months ended September 30, 2023.
Catalyst Biosciences, Inc. - Complement 3 Degrader Program
In May 2022, pursuant to an asset purchase agreement, we acquired Catalyst Biosciences, Inc.’s portfolio of protease medicines that target the complement system (the “complement portfolio”) and related intellectual property, including CB 2782-PEG, which is a pre-clinical complement component 3 degrader program for geographic atrophy in dry age-related macular degeneration. We determined that substantially all the fair value acquired is concentrated in the CB-2782 PEG in-

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VERTEX PHARMACEUTICALS INCORPORATED
Notes to Condensed Consolidated Financial Statements (unaudited)
process research and development assets, which do not constitute a business, and for which we determined there is no alternative future use. As a result, we recorded our $60.0 million upfront payment to “Acquired in-process research and development expenses” in the three and nine months ended September 30, 2022.
Cystic Fibrosis Foundation
In 2004, we entered into a collaboration agreement with the Cystic Fibrosis Foundation, as successor in interest to the Cystic Fibrosis Foundation Therapeutics, Inc., to support research and development activities. Pursuant to the collaboration agreement, as amended, we have agreed to pay tiered royalties ranging from single digits to sub-teens on covered compounds first synthesized and/or tested during a research term on or before February 28, 2014, including ivacaftor, lumacaftor and tezacaftor and royalties ranging from low-single digits to mid-single digits on potential net sales of certain compounds first synthesized and/or tested between March 1, 2014 and August 31, 2016, including elexacaftor. We do not have any royalty obligations on compounds first synthesized and tested on or after September 1, 2016. For combination products, such as ORKAMBI, SYMDEKO/SYMKEVI and TRIKAFTA/KAFTRIO, sales are allocated equally to each of the active pharmaceutical ingredients in the combination product. We record expenses related to these royalty obligations to “Cost of sales.”

D.Earnings Per Share
The following table sets forth the computation of basic and diluted net income per common share for the periods ended:
Three Months Ended September 30,Nine Months Ended September 30,
2023202220232022
(in millions, except per share amounts)
Net income$1,035.3 $930.5 $2,650.8 $2,503.1 
Basic weighted-average common shares outstanding258.0 256.5 257.7 255.8 
Effect of potentially dilutive securities:
Stock options1.2 1.4 1.2 1.4 
Restricted stock units (including PSUs)
1.4 1.6 1.5 1.4 
Employee stock purchase program
0.0 0.0 0.0 0.1 
Diluted weighted-average common shares outstanding260.6 259.5 260.4 258.7 
Basic net income per common share$4.01 $3.63 $10.29 $9.78 
Diluted net income per common share$3.97 $3.59 $10.18 $9.68 
We did not include the securities in the following table in the computation of the diluted net income per common share because the effect would have been anti-dilutive during each period:
Three Months Ended September 30,Nine Months Ended September 30,
2023202220232022
(in millions)
Stock options  0.0 0.0 
Unvested restricted stock units (including PSUs) 0.0 0.2 0.2 


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VERTEX PHARMACEUTICALS INCORPORATED
Notes to Condensed Consolidated Financial Statements (unaudited)
E.Fair Value Measurements
The following fair value hierarchy is used to classify assets and liabilities based on observable inputs and unobservable inputs used in order to determine the fair value of our financial assets and liabilities:
Level 1:
Quoted prices in active markets for identical assets or liabilities. An active market for an asset or liability is a market in which transactions for the asset or liability occur with sufficient frequency and volume to provide pricing information on an ongoing basis.
Level 2:
Observable inputs other than Level 1 inputs. Examples of Level 2 inputs include quoted prices in active markets for similar assets or liabilities and quoted prices for identical assets or liabilities in markets that are not active.
Level 3:
Unobservable inputs based on our assessment of the assumptions that market participants would use in pricing the asset or liability.
Our investment strategy is focused on capital preservation. We invest in instruments that meet the credit quality standards outlined in our investment policy, which also limits the amount of credit exposure to any one issue or type of instrument. We maintain strategic equity investments separately from the investment policy that governs our other cash, cash equivalents and marketable securities as described in Note F, “Marketable Securities and Equity Investments.” Additionally, we utilize foreign currency forward contracts intended to mitigate the effect of changes in foreign exchange rates on our condensed consolidated statement of income.

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VERTEX PHARMACEUTICALS INCORPORATED
Notes to Condensed Consolidated Financial Statements (unaudited)
The following tables set forth our financial assets and liabilities subject to fair value measurements by level within the fair value hierarchy (and does not include $5.5 billion and $3.1 billion of cash as of September 30, 2023 and December 31, 2022, respectively):
As of September 30, 2023As of December 31, 2022
Total
Level 1
Level 2
Level 3
Total
Level 1
Level 2
Level 3
(in millions)
Financial instruments carried at fair value (asset positions):
Cash equivalents:
Money market funds$3,753.4 $3,753.4 $ $ $5,162.6 $5,162.6 $ $ 
Time deposits1,550.0  1,550.0  2,000.0  2,000.0  
U.S. Treasury securities236.8 236.8       
Corporate debt securities    5.8  5.8  
Commercial paper96.5  96.5  204.5  204.5  
Marketable securities:
Corporate equity securities46.4 46.4   116.8 88.8 28.0  
U.S. Treasury securities408.2 408.2       
Government-sponsored enterprise securities421.0 421.0   127.1 127.1   
Asset-backed securities237.8  237.8      
Certificates of deposit31.7  31.7      
Corporate debt securities1,214.2  1,214.2  87.0  87.0  
Commercial paper158.7  158.7  55.8  55.8  
Prepaid expenses and other current assets:
Foreign currency forward contracts37.8  37.8  47.5  47.5  
Other assets:
Foreign currency forward contracts3.4  3.4  0.8  0.8  
Total financial assets
$8,195.9 $4,865.8 $3,330.1 $ $7,807.9 $5,378.5 $2,429.4 $ 
Financial instruments carried at fair value (liability positions):
Other current liabilities:
Foreign currency forward contracts
$(0.7)$ $(0.7)$ $(14.3)$ $(14.3)$ 
Contingent consideration(15.0)  (15.0)(14.6)  (14.6)
Other long-term liabilities:
Foreign currency forward contracts    (0.9) (0.9) 
Contingent consideration(112.7)  (112.7)(114.4)  (114.4)
Total financial liabilities
$(128.4)$ $(0.7)$(127.7)$(144.2)$ $(15.2)$(129.0)
Please refer to Note F, “Marketable Securities and Equity Investments,” for the carrying amount and related unrealized gains (losses) by type of investment.
Fair Value of Corporate Equity Securities
We classify our investments in publicly traded corporate equity securities as “Marketable securities” on our condensed consolidated balance sheets. Generally, our investments in the common stock of publicly traded companies are valued based on Level 1 inputs because they have readily determinable fair values. However, certain of our investments in publicly traded companies have been or continue to be valued based on Level 2 inputs due to transfer restrictions associated with these investments.
As of September 30, 2023, one of our investments in publicly traded corporate equity securities was subject to a contractual sales restriction expiring partially in 2024 and partially in 2025 with a total fair value of $25.5 million. We purchased this investment directly from the publicly traded company in the first quarter of 2023, and do not anticipate any circumstances that would cause this restriction to lapse prior to the periods listed above.
Please refer to Note F, “Marketable Securities and Equity Investments,” for further information on these investments.

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VERTEX PHARMACEUTICALS INCORPORATED
Notes to Condensed Consolidated Financial Statements (unaudited)
Fair Value of Contingent Consideration
In 2019, we acquired Exonics Therapeutics, Inc. (“Exonics”), a privately-held company focused on creating transformative gene-editing therapies to repair mutations that cause Duchenne muscular dystrophy (“DMD”) and other severe neuromuscular diseases, including DM1. Our Level 3 contingent consideration liabilities are related to $678.3 million of development and regulatory milestones potentially payable to former Exonics equity holders. We base our estimates of the probability of achieving the milestones relevant to the fair value of contingent payments, which could include milestone, royalty and option payments, on industry data attributable to rare diseases and our knowledge of the progress and viability of the programs. The discount rates used in the valuation model for contingent payments, which were between 5.5% and 6.5% as of September 30, 2023, represent a measure of credit risk and market risk associated with settling the liabilities. Significant judgment is used in determining the appropriateness of these assumptions at each reporting period.
The following table represents a rollforward of the fair value of our contingent consideration liabilities:
Nine Months Ended September 30, 2023
(in millions)
Balance at December 31, 2022$129.0 
Decrease in fair value of contingent payments
(1.3)
Balance at September 30, 2023$127.7 
In November 2023, we determined that additional pre-clinical studies of the delivery system for our gene-editing components for DMD will be required. Any potential impact on the fair value of our contingent consideration liabilities will be recognized as of December 31, 2023.



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VERTEX PHARMACEUTICALS INCORPORATED
Notes to Condensed Consolidated Financial Statements (unaudited)
F.Marketable Securities and Equity Investments
A summary of our cash equivalents and marketable securities, which are recorded at fair value (and do not include $5.5 billion and $3.1 billion of cash as of September 30, 2023 and December 31, 2022, respectively), is shown below:
As of September 30, 2023As of December 31, 2022
Amortized Cost
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Fair
Value
Amortized Cost
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Fair
Value
(in millions)
Cash equivalents:
Money market funds$3,753.4 $— $— $3,753.4 $5,162.6 $— $— $5,162.6 
Time deposits1,550.0 — — 1,550.0 2,000.0 — — 2,000.0 
U.S. Treasury securities236.8 — — 236.8  — —  
Corporate debt securities — —  5.8 — — 5.8 
Commercial paper96.5 — — 96.5 204.5 — — 204.5 
Total cash equivalents
$5,636.7 $— $— $5,636.7 $7,372.9 $— $— $7,372.9 
Marketable securities:
U.S. Treasury securities$414.6 $0.1 $(6.5)$408.2 $ $ $ $ 
Government-sponsored enterprise securities
422.9  (1.9)421.0 127.0 0.2 (0.1)127.1 
Asset-backed securities239.3 0.0 (1.5)237.8     
Certificates of deposit31.7 0.0  31.7     
Corporate debt securities
1,228.4 0.0 (14.2)1,214.2 87.2  (0.2)87.0 
Commercial paper
158.8 0.0 (0.1)158.7 55.8   55.8 
Total marketable debt securities
2,495.7 0.1 (24.2)2,471.6 270.0 0.2 (0.3)269.9 
Corporate equity securities
72.1 0.5 (26.2)46.4 104.4 30.9 (18.5)116.8 
Total marketable securities
$2,567.8 $0.6 $(50.4)$2,518.0 $374.4 $31.1 $(18.8)$386.7 
Available-for-sale debt securities were classified on our condensed consolidated balance sheets at fair value as follows:
As of September 30, 2023As of December 31, 2022
(in millions)
Cash and cash equivalents$4,086.7 $5,372.9 
Marketable securities
771.6 157.7 
Long-term marketable securities1,700.0 112.2 
Total
$6,558.3 $5,642.8 
Available-for-sale debt securities by contractual maturity were as follows:
As of September 30, 2023As of December 31, 2022
(in millions)
Matures within one year$4,858.3 $5,530.6 
Matures after one year through five years
1,700.0 112.2 
Total
$6,558.3 $5,642.8 
We did not record any allowances for credit losses to adjust the fair value of available-for-sale debt securities or gross realized gains or losses in the three and nine months ended September 30, 2023 and 2022. As of September 30, 2023, we held available-for-sale debt securities with a total fair value of $2.28 billion that were in unrealized loss positions totaling $24.2 million; however, none of these investments had been in an unrealized loss position for greater than twelve months.

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VERTEX PHARMACEUTICALS INCORPORATED
Notes to Condensed Consolidated Financial Statements (unaudited)
We record changes in the fair value of our investments in corporate equity securities to “Other (expense) income, net” in our condensed consolidated statements of income. During the three and nine months ended September 30, 2023 and 2022, our net unrealized (losses) gains on corporate equity securities held at the conclusion of each period were as follows:
Three Months Ended September 30,Nine Months Ended September 30,
2023202220232022
(in millions)
Net unrealized (losses) gains
$(6.2)$16.7 $(7.1)$(143.1)
        
During the nine months ended September 30, 2023, we received proceeds of $95.1 million related to the sale of the common stock of a publicly traded company, which had a total original cost basis of $57.3 million. There were no sales of the common stock of publicly traded companies during the nine months ended September 30, 2022.
As of September 30, 2023, the carrying value of our equity investments without readily determinable fair values, which are recorded in “Other assets” on our condensed consolidated balance sheets, was $98.6 million.

G.Accumulated Other Comprehensive Income (Loss)
The following table summarizes the changes in accumulated other comprehensive income (loss) by component:
Unrealized Holding Gains (Losses), Net of Tax
Foreign Currency Translation AdjustmentOn Available-For-Sale Debt SecuritiesOn Foreign Currency Forward ContractsTotal
(in millions)
Balance at December 31, 2022$(25.0)$(0.1)$25.9 $0.8 
Other comprehensive income (loss) before reclassifications9.1 (18.8)31.8 22.1 
Amounts reclassified from accumulated other comprehensive income (loss)  (25.9)(25.9)
Net current period other comprehensive income (loss)9.1 (18.8)5.9 (3.8)
Balance at September 30, 2023$(15.9)$(18.9)$31.8 $(3.0)
Balance at December 31, 2021$(13.6)$(0.5)$30.0 $15.9 
Other comprehensive (loss) income before reclassifications(42.8)(3.6)230.2 183.8 
Amounts reclassified from accumulated other comprehensive income (loss)  (102.1)(102.1)
Net current period other comprehensive (loss) income(42.8)(3.6)128.1 81.7 
Balance at September 30, 2022$(56.4)$(4.1)$158.1 $97.6 

H.Hedging
Foreign currency forward contracts - Designated as hedging instruments
We maintain a hedging program intended to mitigate the effect of changes in foreign exchange rates for a portion of our forecasted product revenues denominated in certain foreign currencies. The program includes foreign currency forward contracts that are designated as cash flow hedges under U.S. GAAP having contractual durations from one to eighteen months. We recognize realized gains and losses for the effective portion of such contracts in “Product revenues, net” in our

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VERTEX PHARMACEUTICALS INCORPORATED
Notes to Condensed Consolidated Financial Statements (unaudited)
condensed consolidated statements of income in the same period that we recognize the product revenues that were impacted by the hedged foreign exchange rate changes.
We formally document the relationship between foreign currency forward contracts (hedging instruments) and forecasted product revenues (hedged items), as well as our risk management objective and strategy for undertaking various hedging activities, which includes matching all foreign currency forward contracts that are designated as cash flow hedges to forecasted transactions. We also formally assess, both at the hedge’s inception and on an ongoing basis, whether the foreign currency forward contracts are highly effective in offsetting changes in cash flows of hedged items on a prospective and retrospective basis. If we were to determine that a (i) foreign currency forward contract is not highly effective as a cash flow hedge, (ii) foreign currency forward contract has ceased to be a highly effective hedge or (iii) forecasted transaction is no longer probable of occurring, we would discontinue hedge accounting treatment prospectively. We measure effectiveness based on the change in fair value of the forward contracts and the fair value of the hypothetical foreign currency forward contracts with terms that match the critical terms of the risk being hedged. As of September 30, 2023, all hedges were determined to be highly effective.
We consider the impact of our counterparties’ credit risk on the fair value of the foreign currency forward contracts. As of September 30, 2023 and December 31, 2022, credit risk did not change the fair value of our foreign currency forward contracts.
The following table summarizes the notional amount in U.S. dollars of our outstanding foreign currency forward contracts designated as cash flow hedges under U.S. GAAP:
As of September 30, 2023As of December 31, 2022
Foreign Currency(in millions)
Euro$1,343.3 $1,497.7 
Canadian dollar
192.6 216.3 
British pound sterling
191.9 247.4 
Australian dollar
136.2 174.9 
Swiss Franc51.7 65.2 
Total foreign currency forward contracts
$1,915.7 $2,201.5 
Foreign currency forward contracts - Not designated as hedging instruments
We also enter into foreign currency forward contracts with contractual maturities of less than one month, which are designed to mitigate the effect of changes in foreign exchange rates on monetary assets and liabilities, including intercompany balances. These contracts are not designated as hedging instruments under U.S. GAAP. We recognize realized gains and losses for such contracts in “Other (expense) income, net” in our condensed consolidated statements of income each period. As of September 30, 2023, the notional amount of our outstanding foreign currency forward contracts where hedge accounting under U.S. GAAP is not applied was $922.8 million.

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VERTEX PHARMACEUTICALS INCORPORATED
Notes to Condensed Consolidated Financial Statements (unaudited)
During the three and nine months ended September 30, 2023 and 2022, we recognized the following related to foreign currency forward contracts in our condensed consolidated statements of income:
Three Months Ended September 30,Nine Months Ended September 30,
2023202220232022
(in millions)
Designated as hedging instruments - Reclassified from AOCI
Product revenues, net$2.8 $65.2 $33.0 $130.3 
Not designated as hedging instruments
Other (expense) income, net$(22.0)$(22.1)$(17.8)$(38.9)
Total reported in the Condensed Consolidated Statements of Income
Product revenues, net$2,483.5 $2,334.3 $7,351.5 $6,628.0 
Other (expense) income, net$(15.9)$17.2 $(13.0)$(133.7)
The following table summarizes the fair value of our outstanding foreign currency forward contracts designated as cash flow hedges under U.S. GAAP included on our condensed consolidated balance sheets:
As of September 30, 2023
AssetsLiabilities
ClassificationFair ValueClassificationFair Value
(in millions)
Prepaid expenses and other current assets$37.8 Other current liabilities$(0.7)
Other assets3.4 Other long-term liabilities 
Total assets
$41.2 
Total liabilities
$(0.7)
As of December 31, 2022
AssetsLiabilities
ClassificationFair ValueClassificationFair Value
(in millions)
Prepaid expenses and other current assets$47.5 Other current liabilities$(14.3)
Other assets0.8 Other long-term liabilities(0.9)
Total assets
$48.3 
Total liabilities
$(15.2)
As of September 30, 2023, we expect the amounts that are related to foreign exchange forward contracts designated as cash flow hedges under U.S. GAAP recorded in “Prepaid expenses and other current assets” and “Other current liabilities” to be reclassified to earnings within twelve months.

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VERTEX PHARMACEUTICALS INCORPORATED
Notes to Condensed Consolidated Financial Statements (unaudited)
We present the fair value of our foreign currency forward contracts on a gross basis within our condensed consolidated balance sheets. The following table summarizes the potential effect of offsetting derivatives by type of financial instrument designated as cash flow hedges under U.S. GAAP on our condensed consolidated balance sheets:

As of September 30, 2023
Gross Amounts RecognizedGross Amounts OffsetGross Amounts PresentedGross Amounts Not OffsetLegal Offset
Foreign currency forward contracts(in millions)
Total assets$41.2 $ $41.2 $(0.7)$40.5 
Total liabilities(0.7) (0.7)0.7  
As of December 31, 2022
Gross Amounts RecognizedGross Amounts OffsetGross Amounts PresentedGross Amounts Not OffsetLegal Offset
Foreign currency forward contracts(in millions)
Total assets$48.3 $ $48.3 $(15.2)$33.1 
Total liabilities(15.2) (15.2)15.2  

I.Inventories
Inventories consisted of the following:
As of September 30, 2023As of December 31, 2022
(in millions)
Raw materials$77.5 $38.1 
Work-in-process498.3 260.7 
Finished goods
112.9 161.8 
Total
$688.7 $460.6 


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VERTEX PHARMACEUTICALS INCORPORATED
Notes to Condensed Consolidated Financial Statements (unaudited)
J.Stock-based Compensation Expense and Share Repurchase Programs
Stock-based compensation expense
During the three and nine months ended September 30, 2023 and 2022, we recognized the following stock-based compensation expense:
Three Months Ended September 30,Nine Months Ended September 30,
2023202220232022
(in millions)
Stock-based compensation expense by type of award:
Restricted stock units (including PSUs)$129.1 $130.3 $358.6 $351.5 
Stock options0.2 3.1 4.0 14.9 
ESPP share issuances2.4 1.9 11.8 13.0 
Stock-based compensation expense related to inventories
(0.8)0.3 (1.8)0.4 
Total stock-based compensation expense included in “Total costs and expenses”
$130.9 $135.6 $372.6 $379.8 
Stock-based compensation expense by line item:
Cost of sales$1.7 $2.4 $5.4 $7.0 
Research and development expenses81.1 80.0 231.9 229.9 
Selling, general and administrative expenses48.1 53.2 135.3 142.9 
Total stock-based compensation expense included in costs and expenses
130.9 135.6 372.6 379.8 
Income tax effect(37.1)(38.8)(109.0)(101.3)
Total stock-based compensation expense, net of tax
$93.8 $96.8 $263.6 $278.5 
Share repurchase program
In February 2023, our Board of Directors approved a share repurchase program (our “Share Repurchase Program”), pursuant to which we are authorized to repurchase up to $3.0 billion of our common stock. Our Share Repurchase Program does not have an expiration date and can be discontinued at any time. During the nine months ended September 30, 2023, we repurchased 891,060 shares of our common stock under our Share Repurchase Program for an aggregate of $284.1 million. As of September 30, 2023, a total of $2.7 billion remained authorized for future repurchases.

K.Income Taxes
We are subject to U.S. federal, state, and foreign income taxes. During the three and nine months ended September 30, 2023 and 2022, we recorded the following provisions for income taxes and effective tax rates as compared to our income before provision for income taxes:
Three Months Ended September 30,Nine Months Ended September 30,
2023202220232022
(in millions, except percentages)
Income before provision for income taxes$1,179.2 $1,176.4 $3,232.2 $3,155.6 
Provision for income taxes$143.9 $245.9 $581.4 $652.5 
Effective tax rate12.2 %20.9 %18.0 %20.7 %

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VERTEX PHARMACEUTICALS INCORPORATED
Notes to Condensed Consolidated Financial Statements (unaudited)
Our effective tax rate for each of the three and nine months ended September 30, 2023 was lower than the U.S. statutory rate primarily due to a benefit from a research and development tax credit study that was completed in the third quarter of 2023 and excess tax benefits related to stock-based compensation, partially offset by changes in uncertain tax positions.
Our effective tax rate was similar to the U.S. statutory rate for each of the three and nine months ended September 30, 2022.
We have reviewed the tax positions taken, or to be taken, in our tax returns for all tax years currently open to examination by a taxing authority. As of September 30, 2023 and December 31, 2022, we had $245.4 million and $208.5 million, respectively, of net unrecognized tax benefits, which would affect our tax rate if recognized.
We file U.S. federal income tax returns and income tax returns in various state, local and foreign jurisdictions. We have various income tax audits ongoing at any time throughout the world. Except for jurisdictions where we have net operating losses or tax credit carryforwards, we are no longer subject to any tax assessment from tax authorities for years prior to 2014 in jurisdictions that have a material impact on our consolidated financial statements.

L.Commitments and Contingencies
2022 Credit Facility
In July 2022, Vertex and certain of its subsidiaries entered into a $500.0 million unsecured revolving facility (the “Credit Agreement”) with Bank of America, N.A., as administrative agent and the lenders referred to therein (the “Lenders”), which matures on July 1, 2027. The Credit Agreement was not drawn upon at closing and we have not drawn upon it to date. Amounts drawn pursuant to the Credit Agreement, if any, will be used for general corporate purposes. Subject to satisfaction of certain conditions, we may request that the borrowing capacity for the Credit Agreement be increased by an additional $500.0 million. Additionally, the Credit Agreement provides a sublimit of $100.0 million for letters of credit.
Any amounts borrowed under the Credit Agreement will bear interest, at our option, at either a base rate or a Secured Overnight Financing Rate (“SOFR”), in each case plus an applicable margin. Under the Credit Agreement, the applicable margins on base rate loans range from 0.000% to 0.500% and the applicable margins on SOFR loans range from 1.000% to 1.500%, in each case based on our consolidated leverage ratio (the ratio of our total consolidated funded indebtedness to our consolidated EBITDA for the most recently completed four fiscal quarter period).
Any amounts borrowed pursuant to the Credit Agreement are guaranteed by certain of our existing and future domestic subsidiaries, subject to certain exceptions.
The Credit Agreement contains customary representations and warranties and affirmative and negative covenants, including a financial covenant to maintain subject to certain limited exceptions, a consolidated leverage ratio of 3.50 to 1.00, subject to an increase to 4.00 to 1.00 following a material acquisition. As of September 30, 2023, we were in compliance with the covenants described above. The Credit Agreement also contains customary events of default. In the case of a continuing event of default, the administrative agent would be entitled to exercise various remedies, including the acceleration of amounts due under outstanding loans.
Direct costs related to the Credit Agreement are recorded over its term and were not material to our financial statements.
Guaranties and Indemnifications
As permitted under Massachusetts law, our Articles of Organization and By-laws provide that we will indemnify certain of our officers and directors for certain claims asserted against them in connection with their service as an officer or director. The maximum potential amount of future payments that we could be required to make under these indemnification provisions is unlimited. However, we have purchased directors’ and officers’ liability insurance policies that could reduce our monetary exposure and enable us to recover a portion of any future amounts paid. No indemnification claims currently are outstanding, and we believe the estimated fair value of these indemnification arrangements is minimal.
We customarily agree in the ordinary course of our business to indemnification provisions in agreements with clinical trial investigators and sites in our product development programs, sponsored research agreements with academic and not-for-profit institutions, various comparable agreements involving parties performing services for us, and our real estate leases. We

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VERTEX PHARMACEUTICALS INCORPORATED
Notes to Condensed Consolidated Financial Statements (unaudited)
also customarily agree to certain indemnification provisions in our drug discovery, development and commercialization collaboration agreements. With respect to our clinical trials and sponsored research agreements, these indemnification provisions typically apply to any claim asserted against the investigator or the investigator’s institution relating to personal injury or property damage, violations of law or certain breaches of our contractual obligations arising out of the research or clinical testing of our compounds or product candidates. With respect to lease agreements, the indemnification provisions typically apply to claims asserted against the landlord relating to personal injury or property damage caused by us, to violations of law by us or to certain breaches of our contractual obligations. The indemnification provisions appearing in our collaboration agreements are similar to those for the other agreements discussed above, but in addition provide some limited indemnification for our collaborator in the event of third-party claims alleging infringement of intellectual property rights. In each of the cases above, the indemnification obligation generally survives the termination of the agreement for some extended period, although we believe the obligation typically has the most relevance during the contract term and for a short period of time thereafter. The maximum potential amount of future payments that we could be required to make under these provisions is generally unlimited. We have purchased insurance policies covering personal injury, property damage and general liability that reduce our exposure for indemnification and would enable us in many cases to recover all or a portion of any future amounts paid. We have never paid any material amounts to defend lawsuits or settle claims related to these indemnification provisions. Accordingly, we believe the estimated fair value of these indemnification arrangements is minimal.
Other Contingencies
We have certain contingent liabilities that arise in the ordinary course of our business activities. We accrue for such contingent liabilities when it is probable that future expenditures will be made, and such expenditures can be reasonably estimated. Other than our contingent consideration liabilities discussed in Note E, “Fair Value Measurements,” there were no material contingent liabilities accrued as of September 30, 2023 or December 31, 2022.

M.Additional Cash Flow Information
The cash, cash equivalents and restricted cash at the beginning and ending of each period presented in our condensed consolidated statements of cash flows consisted of the following:
Nine Months Ended September 30,
20232022
Beginning of periodEnd of periodBeginning of periodEnd of period
(in millions)
Cash and cash equivalents$10,504.0 $11,110.2 $6,795.0 $9,171.5 
Prepaid expenses and other current assets
8.0 6.4 5.1 5.5 
Cash, cash equivalents and restricted cash per condensed consolidated statement of cash flows$10,512.0 $11,116.6 $6,800.1 $9,177.0 


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Item 2.     Management’s Discussion and Analysis of Financial Condition and Results of Operations
OVERVIEW
We are a global biotechnology company that invests in scientific innovation to create transformative medicines for people with serious diseases, with a focus on specialty markets. We have four approved medicines that treat the underlying cause of cystic fibrosis (“CF”), a life-threatening genetic disease, and we continue to focus on developing additional treatments for CF. Beyond CF, we have a pipeline that includes mid- and late-stage clinical programs in sickle cell disease, beta thalassemia, acute and neuropathic pain, APOL1-mediated kidney disease, type 1 diabetes, and alpha-1 antitrypsin deficiency, and earlier-stage programs in diseases such as muscular dystrophies.
Our triple combination regimen, TRIKAFTA/KAFTRIO (elexacaftor/tezacaftor/ivacaftor and ivacaftor), was approved in 2019 in the United States (“U.S.”) and in 2020 in the European Union (“E.U.”). Collectively, our four medicines are being used to treat more than two-thirds of the approximately 88,000 people with CF in North America, Europe, and Australia. We are evaluating our medicines in additional patient populations, including younger children, with the goal of having small molecule treatments for all people who have at least one mutation in their cystic fibrosis transmembrane conductance regulator (“CFTR”) gene that is responsive to our CFTR modulators. We also are pursuing messenger ribonucleic acid (“mRNA”) and genetic therapies for people with CF who do not make CFTR protein and, as a result, cannot benefit from our current CF medicines.
In addition, we are preparing for near-term launches of potential new products in sickle cell disease (“SCD”), beta thalassemia, CF and acute pain. We completed regulatory submissions in the U.S., E.U. and the United Kingdom (“U.K.”) for exagamglogene autotemcel (“exa-cel”) for the treatment of SCD and transfusion-dependent beta thalassemia (“TDT”). The exa-cel regulatory submissions for SCD and TDT are under review by the U.S. Food and Drug Administration (“FDA”), the European Medicines Agency (“EMA”) and the Medicines and Healthcare products Regulatory Agency (“MHRA”).
Financial Highlights
Revenues
In the third quarter of 2023, our net product revenues increased to $2.5 billion as compared to $2.3 billion in the third quarter of 2022. The increase was primarily due to the continued performance of TRIKAFTA in the U.S., following the launch of TRIKAFTA in children with CF 2 to 5 years of age and strong uptake of TRIKAFTA/KAFTRIO in ex-U.S. markets with recently achieved reimbursements and label extensions in younger age groups.
Expenses
Our total research and development (“R&D”), acquired in-process research and development (“AIPR&D”), and selling, general and administrative (“SG&A”) expenses increased to $1.1 billion in the third quarter of 2023 as compared to $920.8 million in the third quarter of 2022. The increase was primarily due to the progression of several product candidates in mid- to late-stage clinical development, increased AIPR&D and costs to support global launches. Cost of sales was 13% and 12% of our net product revenues in the third quarter of 2023 and 2022, respectively.
Cash
Our total cash, cash equivalents and marketable securities increased to $13.6 billion as of September 30, 2023 as compared to $10.9 billion as of December 31, 2022 primarily due to our net product revenues and operating cash flows partially offset by our upfront payments to Entrada Therapeutics, Inc. (“Entrada”) and CRISPR Therapeutics AG (“CRISPR”), repurchases of our common stock, and income tax payments.

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Note: Charts above may not add due to rounding.
Business Updates
Marketed Products
We expect to grow our CF business with (i) continued uptake by patients in countries where we are early in our launch, such as those with recently achieved reimbursement agreements, (ii) label expansions, including into younger patient groups, (iii) the development of mRNA therapies for people with CF who are not eligible for our approved CFTR modulators, and (iv) growth in the number of people living with CF. Recent progress in activities supporting continued uptake and label expansions is included below.
Health Canada granted market authorization for the use of TRIKAFTA in children with CF 2 to 5 years of age who have at least one F508del mutation in the CFTR gene.
The EMA’s Committee for Medicinal Products for Human Use adopted a positive opinion for the use of KAFTRIO in children with CF 2 to 5 years of age who have at least one F508del mutation in the CFTR gene.
The European Commission approved ORKAMBI in children with CF 1 year to less than 2 years of age with two copies of the F508del mutation in the CFTR gene.
Potential Near-Term Launch Opportunities
We are preparing for the following near-term launches of potential new products:
Exa-cel in SCD and TDT
In the U.S., the FDA’s Cellular, Tissue and Gene Therapies Advisory Committee meeting to discuss exa-cel in people with SCD has completed. The FDA has assigned exa-cel Prescription Drug User Fee Act action dates of December 8, 2023 for SCD and March 30, 2024 for TDT. The FDA granted Priority Review for the BLA for exa-cel in SCD. Exa-cel has been granted Fast Track, Regenerative Medicine Advanced Therapy, Orphan Drug and Rare Pediatric Disease designations in the U.S.
The EMA and MHRA are reviewing the marketing authorization applications (each, an “MAA”) for exa-cel in SCD and TDT in the E.U. and U.K, and we expect regulatory decisions in the coming months. In the E.U., exa-cel has been granted Priority Medicines (“PRIME”) and Orphan Drug designations. In the U.K., exa-cel has been granted an Innovation Passport under the Innovative Licensing and Access Pathway from the MHRA.
We submitted a MAA for exa-cel in SCD and TDT to the Saudi Food and Drug Authority (the “SFDA”). Exa-cel has been granted Breakthrough designation by the SFDA in the Kingdom of Saudi Arabia.

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Vanzacaftor/tezacaftor/deutivacaftor in CF
We expect to complete the pivotal SKYLINE 102 and SKYLINE 103 clinical trials, which evaluate the efficacy and safety of our new once-daily investigational triple combination vanzacaftor/tezacaftor/deutivacaftor relative to TRIKAFTA in people with CF 12 years of age and older, and the RIDGELINE clinical trial of vanzacaftor/tezacaftor/deutivacaftor in children with CF 6 to 11 years of age, by the end of 2023.
We expect to share the results of all three clinical trials in early 2024.
VX-548 in Acute Pain
We have completed the randomized controlled Phase 3 pivotal trial in abdominoplasty and we continue to enroll the randomized, controlled Phase 3 clinical trial in bunionectomy and a single-arm safety and effectiveness clinical trial, evaluating our lead compound, VX-548, for the treatment of moderate to severe acute pain. We expect to complete the pivotal program for acute pain in late 2023. We expect to share results from the three clinical trials in early 2024.
In the U.S., VX-548 has been granted Breakthrough Therapy and Fast Track designations for moderate to severe acute pain.
Pipeline
We continue to advance a diversified pipeline of potentially transformative medicines for serious diseases utilizing a range of modalities. Recent and anticipated progress in activities supporting these efforts is included below.
Cystic Fibrosis
In collaboration with Moderna, we are developing VX-522, a CFTR mRNA therapeutic for the treatment of people with CF who do not produce any CFTR protein. We are enrolling people with CF in a single-ascending dose clinical trial for VX-522. We expect to complete this single-ascending dose clinical trial and initiate a multiple-ascending dose clinical trial by the end of 2023. In the U.S., the FDA has granted Fast Track designation for VX-522.
In addition, we are advancing additional CFTR potentiators and correctors through clinical development with the goal of bringing more patients to carrier levels of CFTR function. We are also advancing additional research-stage CFTR modulators and genetic therapies for CF.
Sickle Cell Disease and Beta Thalassemia
We continue to enroll and dose patients in two global Phase 3 clinical trials evaluating exa-cel in children with SCD or TDT 5 to 11 years of age.
We continue to work on preclinical assets for gentler conditioning for exa-cel, which could broaden the eligible patient population.
Acute and Neuropathic Pain
We have discovered multiple selective small molecule inhibitors of NaV1.8, with the objective of creating a new class of pain medicines that provide effective pain relief without the limitations of other pain medicines, such as the abuse potential of opioids.
We have completed the Phase 2 dose-ranging clinical trial evaluating VX-548 in patients with diabetic peripheral neuropathy, a common form of chronic peripheral neuropathic pain. We expect to share results from this clinical trial in late 2023.
We expect to initiate another Phase 2 clinical trial evaluating VX-548 in patients with peripheral neuropathic pain in late 2023. This clinical trial will evaluate VX-548 in patients with lumbosacral radiculopathy, a second type of peripheral neuropathic pain.
We are advancing multiple NaV1.8 inhibitors and NaV1.7 inhibitors through research and earlier stages of development for pain.

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APOL1-Mediated Kidney Disease
Inaxaplin is our small molecule for the treatment of APOL1-mediated kidney disease (“AMKD”), including APOL1-mediated focal segmental glomerulosclerosis (“FSGS”). We continue to enroll and dose patients in the pivotal program for inaxaplin, a single Phase 2/3 clinical trial in patients with AMKD, and we expect to complete enrollment in the Phase 2B dose-ranging portion of the trial in 2023.
The FDA granted Breakthrough Therapy designation to inaxaplin for APOL1-mediated FSGS and the EMA granted Orphan Drug and PRIME designations to inaxaplin for AMKD.
Type 1 Diabetes
VX-880 is a stem cell-derived, fully differentiated, insulin-producing islet cell replacement therapy, using standard immunosuppression to protect the implanted cells. Proof-of-concept for VX-880 was achieved in 2022. We are evaluating VX-880 as a potential treatment for type 1 diabetes (“T1D”) in a sequential, three-part Phase 1/2 clinical trial. We have completed enrollment in Part C of the clinical trial.
We continue to advance additional programs in T1D, in which these same stem cell-derived, fully differentiated, insulin-producing islet cells are encapsulated and implanted in an immunoprotective device or are modified to produce hypoimmune cells with the goal of eliminating the need for immunosuppression. We are evaluating VX-264, the cells and device program, in a sequential, multi-part Phase 1/2 clinical trial.
Our hypoimmune cell program uses CRISPR/Cas9 technology to gene-edit the same stem cell-derived, fully differentiated islets used in the VX-880 and VX-264 programs. The goal is to cloak the cells from the immune system to explore another possible path to eliminate the need for immunosuppressive therapy. This program continues to progress through the research stage.
Alpha-1 Antitrypsin Deficiency
We are working to address the underlying genetic cause of alpha-1 antitrypsin (“AAT”) deficiency (“AATD”). We are developing novel small molecule correctors of Z-AAT protein folding, with the goal of enabling the secretion of functional AAT into the blood and addressing both the lung and the liver aspects of AATD. We continue to enroll and dose healthy volunteers in Phase 1 clinical trials evaluating VX-634 and VX-668, our next-wave investigational molecule AAT correctors with significantly improved potency and drug-like properties as compared to the first-generation AATD correctors.
We have discontinued development of VX-864, a first generation AATD corrector, due to non-serious rash events in some patients.
Duchenne Muscular Dystrophy
We are pursuing preclinical research in Duchenne muscular dystrophy (“DMD”) using innovative approaches to target the underlying cause of disease, with the goal of restoring near-full-length dystrophin and muscle function.
Based on pre-clinical data generated to date, we have determined that additional in vitro and animal studies of the delivery system for our gene editing components will be required prior to advancing the program into clinical development.
We are using the learnings from our first-generation vectors to design next-generation delivery systems for in vivo gene editing in DMD.
Our Business Environment
Our net product revenues come from the sale of our medicines for the treatment of CF. Our CF strategy involves continuing to develop and obtain approval and reimbursement for treatment regimens that will provide benefits to all people with CF and increasing the number of people with CF eligible and able to receive our medicines, including through label expansions, expanded reimbursement, and the development of new medicines. We are advancing our pipeline of product candidates for the treatment of serious diseases outside of CF. Our strategy is to combine transformative advances in the understanding of causal human biology and the science of therapeutics to discover and develop innovative medicines. This

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approach includes advancing multiple compounds from each program, spanning multiple modalities, into early clinical trials to obtain patient data that can inform selection of the most promising compounds for later-stage development, and to inform discovery and development of additional compounds. We aim to rapidly follow our first-in-class therapies that achieve proof-of-concept with potential best-in-class candidates to provide durable clinical and commercial success.
In pursuit of new product candidates and therapies in specialty markets, we invest in research and development. We believe that pursuing research in diverse areas allows us to balance the risks inherent in product development and may provide product candidates that will form our pipeline in future years. To supplement our internal research programs, we acquire technologies and programs and collaborate with biopharmaceutical and technology companies, leading academic research institutions, government laboratories, foundations and other organizations, as needed, to advance research in our areas of therapeutic interest and to access technologies needed to execute on our strategy.
Discovery and development of a new pharmaceutical or biological product is a difficult and lengthy process that requires significant financial resources along with extensive technical and regulatory expertise. Across the industry, most potential drug or biological products never progress into development, and most products that do advance into development never receive marketing approval. Our investments in product candidates are subject to considerable risks. We closely monitor the results of our discovery, research, clinical trials and nonclinical studies and frequently evaluate our product development programs in light of new data and scientific, business and commercial insights, with the objective of balancing risk and potential. This process can result in rapid changes in focus and priorities as new information becomes available and as we gain additional understanding of our ongoing programs and potential new programs, as well as those of our competitors.
Our business also requires ensuring appropriate manufacturing and reimbursement of our products. As we advance our product candidates through clinical development toward commercialization and market and sell our approved products, we build and maintain our supply chain and quality assurance resources. We rely on a global network of third parties and our internal capabilities to manufacture and distribute our products for commercial sale and post-approval clinical trials and to manufacture and distribute our product candidates for clinical trials. In addition to establishing supply chains for each new approved product, we adapt our supply chain for existing products to include additional formulations or to increase scale of production for existing products as needed. The processes for cell and genetic therapies can be more complex than those required for small molecule drugs and require additional investments in different systems, equipment, facilities and expertise. We are focused on ensuring the stability of the supply chains for our current products, as well as for our pipeline programs.
Sales of our products depend, to a large degree, on the extent to which our products are reimbursed by third-party payors, such as government health programs, commercial insurance and managed health care organizations. Reimbursement for our products, including our potential pipeline therapies, cannot be assured and may take significant periods of time to obtain. We dedicate substantial management and other resources to obtain and maintain appropriate levels of reimbursement for our products from third-party payors, including governmental organizations in the U.S. and ex-U.S. markets.
In the U.S., we have worked successfully with third-party payors to promptly obtain appropriate levels of reimbursement for our CF medicines. We plan to continue to engage in discussions with numerous commercial insurers and managed health care organizations, along with government health programs that are typically managed by authorities in the individual states, to ensure that payors recognize the significant benefits that our medicines provide and provide patients with appropriate levels of access to our medicines now and in the future. We cannot, however, predict how recent changes in the law, including through the Inflation Reduction Act of 2022 and passage of state laws (e.g., transparency laws and prescription drug affordability boards), will affect our ability to negotiate successfully with third-party payors and distribute our products. In ex-U.S. markets, we seek government reimbursement for our medicines on a country-by-country or region-by-region basis, as required. This is necessary for each new medicine, as well as for label expansions for our current medicines. We expect to continue to focus significant resources to obtain expanded reimbursement for our CF medicines and, ultimately, pipeline therapies, in U.S. and ex-U.S. markets.
Strategic Transactions
Acquisitions
As part of our business strategy, we seek to acquire technologies, products, product candidates and other businesses that are aligned with our corporate and research and development strategies and complement and advance our ongoing research and development efforts. During 2022 and 2023, we have completed several acquisitions, including:

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In the second quarter of 2022, we acquired Catalyst Biosciences, Inc.’s (“Catalyst”), portfolio of protease medicines that target the complement system and related intellectual property for $60.0 million.
In the third quarter of 2022, we acquired ViaCyte, a privately held biotechnology company with intellectual property, tools, technologies and assets with potential to accelerate development of our T1D programs, for $315.0 million.
In the third quarter of 2023, we acquired a novel G protein-coupled receptor (“GPCR”) program from Septerna, Inc. for $47.5 million.
We expect to continue to identify and evaluate potential acquisitions and may include larger transactions or later-stage assets.
Collaboration and In-Licensing Arrangements
We enter into arrangements with third parties, including collaboration and licensing arrangements, for the development, manufacture and commercialization of products, product candidates and other technologies that have the potential to complement our ongoing research and development efforts. Over the last several years, we entered into collaboration agreements with a number of companies, including Arbor Biotechnologies, Inc., CRISPR, Entrada, ImmunoGen, Inc., Mammoth Biosciences, Inc., Moderna, Inc., Obsidian Therapeutics, Inc., and Verve Therapeutics, Inc. Generally, when we in-license a technology or product candidate, we make upfront payments to the collaborator, assume the costs of the program and/or agree to make contingent payments, which could consist of milestone, royalty and option payments. Most of these collaboration payments are expensed as AIPR&D; however, depending on many factors, including the structure of the collaboration, the stage of development of the acquired technology, the significance of the in-licensed product candidate to the collaborator’s operations and the other activities in which our collaborators are engaged, the accounting for these transactions can vary significantly. We expect to continue to identify and evaluate collaboration and licensing opportunities that may be similar to or different from the collaborations and licenses that we have engaged in previously.
In February 2023, we closed our strategic collaboration and licensing agreement with Entrada. Upon closing, we made an upfront payment of $225.1 million to Entrada, and purchased $24.9 million of Entrada’s common stock.
In March 2023, we entered into a non-exclusive license agreement for the use of CRISPR’s CRISPR-Cas9 gene-editing technology to accelerate the development of our hypoimmune cell therapies for T1D and made a $100.0 million upfront payment to CRISPR. In the second quarter of 2023, we achieved a research milestone that resulted in a $70.0 million payment to CRISPR in the third quarter of 2023.
Acquired In-Process Research and Development Expenses
In the nine months ended September 30, 2023 and 2022, our AIPR&D included $509.3 million and $92.9 million, respectively, related to upfront, contingent milestone, or other payments pursuant to our business development transactions, including the collaborations, licenses of third-party technologies, and asset acquisitions described above.
Out-License Agreements
We also have out-licensed internally developed programs to collaborators who are leading the development of these programs. Pursuant to these out-licensing arrangements, our collaborators are responsible for the research, development, and commercialization costs associated with these programs, and we are entitled to receive contingent milestone and/or royalty payments. As a result, we do not expect to incur significant expenses in connection with these programs and have the potential for future collaborative and royalty revenues resulting from these programs. None of our out-license agreements had a significant impact on our condensed consolidated statement of income during the nine months ended September 30, 2023 and 2022.
Strategic Equity Investments
In connection with our business development activities, we have periodically made equity investments in our collaborators. As of September 30, 2023, we held strategic equity investments in certain public and private companies, and we expect to make additional strategic equity investments in the future. We invest the majority of our cash, cash equivalents and marketable securities in instruments that meet specific credit quality standards and limit our exposure to any one issue or

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type of instrument. Our strategic equity investments are maintained and managed separately from our other cash, cash equivalents and marketable securities. As discussed below in “Other Income (Expense), Net” in our Results of Operations, any changes in the fair value of equity investments with readily determinable fair values (including publicly traded securities) are recorded to other income (expense), net in our condensed consolidated statements of income.


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RESULTS OF OPERATIONS
Three Months Ended September 30,Nine Months Ended September 30,
20232022Change20232022Change
(in millions, except percentages and per share amounts)
Product revenues, net
$2,483.5 $2,334.3 6%$7,351.5 $6,628.0 11%
Operating costs and expenses1,445.4 1,207.6 20%4,508.0 3,354.1 34%
Income from operations
1,038.1 1,126.7 (8)%2,843.5 3,273.9 (13)%
Other non-operating income (expense), net141.1 49.7 184%388.7 (118.3)**
Provision for income taxes
143.9 245.9 (41)%581.4 652.5 (11)%
Net income
$1,035.3 $930.5 11%$2,650.8 $2,503.1 6%
Net income per diluted common share$3.97 $3.59 $10.18 $9.68 
Diluted shares used in per share calculations
260.6 259.5 260.4 258.7 
** Not meaningful
Product Revenues, net
Three Months Ended September 30,Nine Months Ended September 30,
20232022Change20232022Change
(in millions, except percentages)
TRIKAFTA/KAFTRIO$2,274.3 $2,010.5 13%$6,611.4 $5,665.3 17%
KALYDECO112.8 139.4 (19)%363.1 417.1 (13)%
ORKAMBI63.0 146.2 (57)%281.8 399.9 (30)%
SYMDEKO/SYMKEVI33.4 38.2 (13)%95.2 145.7 (35)%
Product revenues, net$2,483.5 $2,334.3 6%$7,351.5 $6,628.0 11%
In the third quarter and nine months ended September 30, 2023, our net product revenues increased by $149.2 million and $723.5 million, or 6% and 11%, as compared to the third quarter and nine months ended September 30, 2022, respectively. These increases were primarily due to the continued strong uptake of TRIKAFTA/KAFTRIO in ex-U.S. markets with recently achieved reimbursements and label extensions in younger age groups and the performance of TRIKAFTA in the U.S., following the launch of TRIKAFTA in children with CF 2 to 5 years of age. Decreases in revenues for our products other than TRIKAFTA/KAFTRIO were primarily the result of patients switching from these medicines to TRIKAFTA/KAFTRIO.
Our net product revenues from the U.S. and from ex-U.S. markets were as follows:
Three Months Ended September 30,Nine Months Ended September 30,
20232022Change20232022Change
(in millions, except percentages)
United States$1,554.2 $1,455.6 7%$4,465.8 $4,238.9 5%
ex-U.S.929.3 878.7 6%2,885.7 2,389.1 21%
Product revenues, net$2,483.5 $2,334.3 6%$7,351.5 $6,628.0 11%

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Operating Costs and Expenses

Three Months Ended September 30,Nine Months Ended September 30,
20232022Change20232022Change
(in millions, except percentages)
Cost of sales$318.7 $289.4 10%$894.2 $797.0 12%
Research and development expenses810.0 645.0 26%2,338.3 1,846.2 27%
Acquired in-process research and development expenses51.7 29.0 78%509.3 92.9 448%
Selling, general and administrative expenses263.8 246.8 7%767.5 677.3 13%
Change in fair value of contingent consideration1.2 (2.6)**(1.3)(59.3)**
Total costs and expenses$1,445.4 $1,207.6 20%$4,508.0 $3,354.1 34%
** Not meaningful
Cost of Sales
Our cost of sales primarily consists of third-party royalties payable on net sales of our products as well as the cost of producing inventories. Pursuant to our agreement with the Cystic Fibrosis Foundation our tiered third-party royalties on sales of TRIKAFTA/KAFTRIO, SYMDEKO/SYMKEVI, KALYDECO, and ORKAMBI, calculated as a percentage of net sales, range from the single digits to the sub-teens, with lower royalties on sales of TRIKAFTA/KAFTRIO than for our other products. Over the last several years, our cost of sales has been increasing due to increased net product revenues. Our cost of sales as a percentage of our net product revenues was 13% and 12% in the third quarter of 2023 and 2022, respectively, and 12% in each of the nine months ended September 30, 2023 and 2022.
Research and Development Expenses
Three Months Ended September 30,Nine Months Ended September 30,
20232022Change20232022Change
(in millions, except percentages)
Research expenses$173.9 $160.2 9%$511.4 $464.9 10%
Development expenses
636.1 484.8 31%1,826.9 1,381.3 32%
Total research and development expenses
$810.0 $645.0 26%$2,338.3 $1,846.2 27%
Our research and development expenses include internal and external costs incurred for research and development of our products and product candidates. We do not assign our internal costs, such as salary and benefits, stock-based compensation expense, laboratory supplies and other direct expenses and infrastructure costs, to individual products or product candidates, because the employees within our research and development groups typically are deployed across multiple research and development programs. We assign external costs of services provided to us by clinical research organizations and other outsourced research by individual program. Our internal costs are greater than our external costs. All research and development costs for our products and product candidates are expensed as incurred.
Since January 2021, we have incurred approximately $8.6 billion in total research and development and AIPR&D expenses associated with product discovery and development. The successful development of our product candidates is highly uncertain and subject to a number of risks. In addition, the duration of clinical trials may vary substantially according to the type, complexity and novelty of the product candidate and the disease indication being targeted. The FDA and comparable agencies in foreign countries impose substantial requirements on the introduction of therapeutic pharmaceutical products, typically requiring lengthy and detailed laboratory and clinical testing procedures, sampling activities and other costly and time-consuming procedures. Data obtained from nonclinical and clinical activities at any step in the testing process may be adverse and lead to discontinuation or redirection of development activities. Data obtained from these activities also are susceptible to varying interpretations, which could delay, limit or prevent regulatory approval. The duration and cost of discovery, nonclinical studies and clinical trials may vary significantly over the life of a project and are difficult to predict.

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Therefore, accurate and meaningful estimates of the ultimate costs to bring our product candidates to market are not available.
Any estimates regarding development and regulatory timelines for our product candidates are highly subjective and subject to change. Therefore, we cannot make a meaningful estimate regarding when, or if, a clinical development program will generate revenues and cash flows.
Research Expenses
Three Months Ended September 30,Nine Months Ended September 30,
20232022Change20232022Change
(in millions, except percentages)
Research Expenses:
Salary and benefits$46.3 $40.7 14%$137.5 $119.0 16%
Stock-based compensation expense20.5 23.3 (12)%59.2 65.7 (10)%
Outsourced services and other direct expenses61.8 49.2 26%176.0 132.7 33%
Intangible asset impairment charge— — **— 13.0 **
Infrastructure costs
45.3 47.0 (4)%138.7 134.5 3%
Total research expenses
$173.9 $160.2 9%$511.4 $464.9 10%
** Not meaningful
Our research expenses have been increasing over the last several years as we have invested in our pipeline and expanded our cell and genetic therapy capabilities, resulting in increased headcount, outside services and other direct expenses and infrastructure costs associated with our research facilities. We expect to continue to invest in our research programs with a focus on creating transformative medicines for serious diseases.
Development Expenses
Three Months Ended September 30,Nine Months Ended September 30,
20232022Change20232022Change
(in millions, except percentages)
Development Expenses:
Salary and benefits$152.3 $133.5 14%$438.8 $344.4 27%
Stock-based compensation expense60.6 56.7 7%172.7 164.2 5%
Outsourced services and other direct expenses332.6 215.9 54%957.0 639.2 50%
Infrastructure costs
90.6 78.7 15%258.4 233.5 11%
Total development expenses
$636.1 $484.8 31%$1,826.9 $1,381.3 32%
Our development expenses increased by $151.3 million and $445.6 million, or 31% and 32%, in the three and nine months ended September 30, 2023 as compared to the three and nine months ended September 30, 2022, respectively, primarily due to increased costs to support clinical trials and drug supply associated with our advancing pipeline programs, including in pain, exa-cel and T1D. We are investing significantly in internal headcount, leveraging outsourced services, and in infrastructure to support these programs.

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Acquired In-process Research and Development Expenses
Three Months Ended September 30,Nine Months Ended September 30,
20232022Change20232022Change
(in millions, except percentages)
Acquired in-process research and development expenses$51.7 $29.0 78%$509.3 $92.9 448%
AIPR&D in the third quarter of 2023 was primarily related to our $47.5 million acquisition of a novel GPCR program from Septerna. AIPR&D in the nine months ended September 30, 2023 also included our $225.1 million upfront payment to Entrada, and our $100.0 million upfront payment and $70.0 million T1D research milestone to CRISPR. AIPR&D in the third quarter of 2022 was primarily related to a $25.0 million upfront payment pursuant to our license agreement with Verve. AIPR&D in the nine months ended September 30, 2022 was primarily related to our payment to Verve and a $60.0 million payment to Catalyst to acquire their complement portfolio and related intellectual property. Our AIPR&D has historically fluctuated, and is expected to continue to fluctuate, from one period to another due to upfront, contingent milestone, and other payments pursuant to our existing and future business development transactions, including collaborations, licenses of third-party technologies, and asset acquisitions.
Selling, General and Administrative Expenses
Three Months Ended September 30,Nine Months Ended September 30,
20232022Change20232022Change
(in millions, except percentages)
Selling, general and administrative expenses$263.8 $246.8 7%$767.5 $677.3 13%
Selling, general and administrative expenses increased by 7% and 13% in the third quarter and nine months ended September 30, 2023 as compared to the third quarter and nine months ended September 30, 2022, respectively, primarily due to the continued investment to support the commercialization of our medicines and increased support for our pipeline product candidates.
Contingent Consideration
The fair value of our contingent consideration increased by $1.2 million and decreased by $1.3 million in the third quarter and nine months ended September 30, 2023, respectively. The fair value of our contingent consideration decreased by $2.6 million and $59.3 million in the third quarter and nine months ended September 30, 2022, respectively. The fair value of contingent consideration decreased in the nine months ended September 30, 2022 primarily as a result of a revision to the scope of certain gene-editing programs in the second quarter of 2022.
As of September 30, 2023, the fair value of our contingent consideration liabilities of $127.7 million related to development and regulatory milestones associated with our genetic therapy program for DMD. In November 2023, we determined that additional pre-clinical studies of the delivery system for our gene-editing components for DMD will be required. Any potential impact on the fair value of our contingent consideration liabilities will be recognized as of December 31, 2023.
Other Non-Operating Income (Expense), Net
Interest Income
Interest income increased to $167.9 million and $435.2 million in the third quarter and nine months ended September 30, 2023, respectively, as compared to $46.2 million and $58.6 million in the third quarter and nine months ended September 30, 2022, respectively, primarily due to increased market interest rates and increased cash equivalents and available-for-sale debt securities. Our future interest income is dependent on the amount of, and prevailing market interest rates on, our outstanding cash equivalents and available-for-sale debt securities.

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Interest Expense
Interest expense was $10.9 million and $13.7 million in the third quarter of 2023 and 2022, respectively, and $33.5 million and $43.2 million in the nine months ended September 30, 2023 and 2022, respectively. The majority of our interest expense in these periods was related to imputed interest expense associated with our leased corporate headquarters in Boston.
Other Income (Expense), Net
Other income (expense), net was expense of $15.9 million and income of $17.2 million in the third quarter of 2023 and 2022, respectively, and expense of $13.0 million and $133.7 million in the nine months ended September 30, 2023 and 2022, respectively. These amounts related primarily to net unrealized gains or losses resulting from changes in the fair value of our strategic equity investments. As of September 30, 2023, the fair value of our investments in publicly traded companies was $46.4 million. To the extent that we continue to hold strategic equity investments in publicly traded companies, we will record other income (expense) related to these investments on a quarterly basis. We expect that due to the volatility of the stock price of biotechnology companies, our other income (expense), net will fluctuate in future periods based on increases or decreases in the fair value of our strategic equity investments.
Income Taxes
Our effective tax rate fluctuates from period to period due to the global nature of our operations. The factors that most significantly impact our effective tax rate include changes in tax laws, variability in the allocation of our taxable earnings among multiple jurisdictions, the amount and characterization of our research and development expenses, the levels of certain deductions and credits, adjustments to the value of our uncertain tax positions, acquisitions and third-party collaboration and licensing transactions.
We recorded provisions for income taxes of $143.9 million and $245.9 million in the third quarter of 2023 and 2022, respectively, and $581.4 million and $652.5 million in the nine months ended September 30, 2023 and 2022, respectively. Our effective tax rate of 18.0% in the nine months ended September 30, 2023 was lower than the U.S. statutory rate primarily due to a benefit from a research and development tax credit study that was completed during the third quarter of 2023 and excess tax benefits related to stock-based compensation, partially offset by changes in uncertain tax positions. Our effective tax rate of 20.7% in the nine months ended September 30, 2022 was similar to the U.S. statutory rate.


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LIQUIDITY AND CAPITAL RESOURCES
The following table summarizes the components of our financial condition as of September 30, 2023 and December 31, 2022:
As of September 30, 2023As of December 31, 2022Change
(in millions, except percentages)
Cash, cash equivalents and marketable securities:
Cash and cash equivalents$11,110.2 $10,504.0 6%
Marketable securities818.0 274.5 198%
Long-term marketable securities1,700.0 112.2 1,415%
Total cash, cash equivalents and marketable securities$13,628.2 $10,890.7 25%
Working Capital:
Total current assets$14,695.8 $13,234.8 11%
Total current liabilities(3,599.4)(2,742.1)31%
Total working capital$11,096.4 $10,492.7 6%
Working Capital
As of September 30, 2023, total working capital was $11.1 billion, which represented an increase of $603.7 million from $10.5 billion as of December 31, 2022. The increase in total working capital during the nine months ended September 30, 2023 was primarily due to $3.3 billion of cash provided by operations partially offset by increased investment in long-term marketable securities and repurchases of our common stock.
Cash Flows
Nine Months Ended September 30,
20232022
(in millions)
Net cash provided by (used in):
Operating activities$3,302.7 $3,051.5 
Investing activities$(2,255.2)$(496.7)
Financing activities$(442.4)$(107.9)
Operating Activities
Cash provided by operating activities were $3.3 billion in the nine months ended September 30, 2023 as compared to $3.1 billion in the nine months ended September 30, 2022. The increase in cash provided by operating activities was primarily due to increased net income in the nine months ended September 30, 2023 as compared to the nine months ended September 30, 2022.
Investing Activities
Cash used in investing activities were $2.3 billion and $496.7 million in the nine months ended September 30, 2023 and 2022, respectively. In the nine months ended September 30, 2023, our investing activities primarily related to net purchases of marketable securities. In the nine months ended September 30, 2022, our investing activities primarily related to a net payment of $295.9 million to acquire ViaCyte, Inc. and purchases of property and equipment.
Financing Activities
Cash used in financing activities were $442.4 million and $107.9 million in the nine months ended September 30, 2023 and 2022, respectively. In the nine months ended September 30, 2023, our financing activities primarily related to

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repurchases of our common stock pursuant to our Share Repurchase Program and payments related to our employee stock benefit plans. In the nine months ended September 30, 2022, the largest portion of our financing activities were payments related to our employee stock benefit plans.
Sources and Uses of Liquidity
As of September 30, 2023, we had total cash, cash equivalents and marketable securities of $13.6 billion, which represented an increase of $2.7 billion from $10.9 billion as of December 31, 2022. We intend to rely on our existing cash, cash equivalents and marketable securities together with cash flows from product sales as our primary source of liquidity.
We expect that cash flows from our product sales together with our current cash, cash equivalents and marketable securities will be sufficient to fund our operations for at least the next twelve months. The adequacy of our available funds to meet our future operating and capital requirements will depend on many factors, including our future product sales, and the potential introduction of one or more of our other product candidates to the market, our business development activities, and the number, breadth, cost and prospects of our research and development programs.
Credit Facilities & Financing Strategy
We may borrow up to a total of $500.0 million pursuant to a revolving credit facility that we entered into in July 2022 and could repay and reborrow amounts under this revolving credit agreement without penalty. Subject to certain conditions, we could request that the borrowing capacity be increased by an additional $500.0 million, for a total of $1.0 billion. Negative covenants in our credit agreement could prohibit or limit our ability to access this source of liquidity. As of September 30, 2023, the facility was undrawn, and we were in compliance with these covenants.
We may also raise additional capital by borrowing under credit agreements, through public offerings or private placements of our securities or securing new collaborative agreements or other methods of financing. We will continue to manage our capital structure and will consider all financing opportunities, whenever they may occur, that could strengthen our long-term liquidity profile. There can be no assurance that any such financing opportunities will be available on acceptable terms, if at all.
Future Capital Requirements
We have significant future capital requirements, including:
Expected operating expenses to conduct research and development activities, manufacture and commercialize our existing and future products, and to operate our organization.
Facility, operating and finance lease obligations.
Royalties we pay related to sales of our CF products.
Cash paid for income taxes.
In addition, we have significant potential future capital requirements including:
We have entered into certain business development-related and strategic agreements with third parties that include the funding of certain research, development, manufacturing and commercialization efforts. Certain of our transactions, including collaborations, licensing arrangements, and asset acquisitions, include the potential for future milestone and royalty payments by us upon the achievement of pre-established developmental and regulatory targets and/or commercial targets. Other transactions include the potential for future lease-related expenses and other costs. Our obligation to fund these research and development and commercialization efforts and to pay these potential milestones, expenses and royalties is contingent upon continued involvement in the programs and/or the lack of any adverse events that could cause their discontinuance. We may enter into additional business development transactions and strategic agreements, including acquisitions, collaborations, licensing arrangements and equity investments, that require additional capital.
To the extent we borrow amounts under our existing credit agreement, we would be required to repay any outstanding principal amounts in 2027.

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As of September 30, 2023, we had $2.7 billion remaining authorization available under our Share Repurchase Program.
There have not been any material changes to our future capital requirements disclosed in our Annual Report on Form 10-K for the year ended December 31, 2022, which was filed with the Securities and Exchange Commission, or SEC, on February 10, 2023.

CRITICAL ACCOUNTING POLICIES AND ESTIMATES
Our discussion and analysis of our financial condition and results of operations are based upon our condensed consolidated financial statements prepared in accordance with generally accepted accounting principles in the U.S. The preparation of these financial statements requires us to make certain estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reported periods. These items are monitored and analyzed by management for changes in facts and circumstances, and material changes in these estimates could occur in the future. Changes in estimates are reflected in reported results for the period in which the change occurs. We base our estimates on historical experience and various other assumptions that we believe to be reasonable under the circumstances. Actual results may differ from our estimates if past experience or other assumptions do not turn out to be substantially accurate. During the nine months ended September 30, 2023, there were no material changes to our critical accounting policies as reported in our Annual Report on Form 10-K for the year ended December 31, 2022, which was filed with the SEC on February 10, 2023.

RECENT ACCOUNTING PRONOUNCEMENTS
For a discussion of recent accounting pronouncements, please refer to Note A, “Basis of Presentation and Accounting Policies.”

Item 3.    Quantitative and Qualitative Disclosures About Market Risk
Information required by this item is incorporated by reference from the discussion in Part II, Item 7A, “Quantitative and Qualitative Disclosures About Market Risk,” of our Annual Report on Form 10-K for the year ended December 31, 2022, which was filed with the SEC on February 10, 2023.

Item 4.    Controls and Procedures
Evaluation of Disclosure Controls and Procedures
Our management (under the supervision and with the participation of our chief executive officer and chief financial officer), after evaluating the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended) as of the end of the period covered by this Quarterly Report on Form 10-Q, has concluded that, based on such evaluation, as of September 30, 2023 our disclosure controls and procedures were effective and designed to provide reasonable assurance that the information required to be disclosed is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms. In designing and evaluating our disclosure controls and procedures, our management recognized that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and our management necessarily was required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures.
Changes in Internal Controls Over Financial Reporting
No change in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934, as amended) occurred during the three months ended September 30, 2023 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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PART II. Other Information

Item 1. Legal Proceedings
We are not currently subject to any material legal proceedings.

Item 1A. Risk Factors
Information regarding risk factors appears in Part I, Item 1A. “Risk Factors” of our Annual Report on Form 10-K for the year ended December 31, 2022, which was filed with the SEC on February 10, 2023. There have been no material changes from the risk factors previously disclosed in the Annual Report on Form 10-K.
SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS
This Quarterly Report on Form 10-Q and, in particular, our Management’s Discussion and Analysis of Financial Condition and Results of Operations set forth in Part I, Item 2, contain a number of forward-looking statements. Forward-looking statements are not purely historical and may be accompanied by words such as “anticipates,” “may,” “forecasts,” “expects,” “intends,” “plans,” “potentially,” “believes,” “seeks,” “estimates,” and other words and terms of similar meaning. Such statements may relate to:
our expectations regarding the amount of, timing of, and trends with respect to our financial performance, including revenues, costs and expenses, and other gains and losses;
our expectations regarding our clinical trials and pipeline programs, including expectations for patient enrollment, development timelines, the expected timing of data from our ongoing and planned clinical trials, regulatory authority filings and other submissions for our therapies, communications with regulatory authorities and anticipated regulatory approvals;
our ability to maintain and obtain adequate reimbursement for our products, our ability to launch, commercialize and market our products or any of our other therapies for which we obtain regulatory approval and our ability to obtain label expansions for existing therapies;
our expectations regarding our ability to continue to grow our CF business by increasing the number of people with CF eligible and able to receive our medicines, providing improved treatment options for people who are already eligible for one of our medicines, and pursuing genetic therapies for people with CF who cannot currently benefit from our medicines;
the data that will be generated by ongoing and planned clinical trials and the ability to use that data to advance compounds, continue development or support regulatory filings;
our beliefs regarding the support provided by clinical trials and preclinical and nonclinical studies of our therapies for further investigation, clinical trials or potential use as a treatment;
our plans to continue investing in our research and development programs, including anticipated timelines for our programs, and our strategy to develop our pipeline programs, alone or with third party-collaborators;
our beliefs regarding the approximate patient populations for the disease areas on which we focus;
the potential benefits and therapeutic scope of our acquisitions and collaborations;
the establishment, development and maintenance of collaborative relationships, including potential milestone payments or other obligations;
potential business development activities, including the identification of potential collaborative partners or acquisition targets;

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our ability to expand and protect our intellectual property portfolio and otherwise maintain exclusive rights to products;
potential fluctuations in foreign currency exchange rates and the effectiveness of our foreign currency management program;
our expectations regarding cash generated by operations, our cash balance and expected generation and interest income;
our expectations regarding our provision for or benefit from income taxes and the utilization of our deferred tax assets;
our ability to use our research programs to identify and develop new product candidates to address serious diseases and significant unmet medical needs;
our plans to expand, strengthen, and invest in our global supply chains and manufacturing infrastructure and capabilities, including for cell and gene therapies; and
our liquidity and our expectations regarding the possibility of raising additional capital.
Forward-looking statements are subject to certain risks, uncertainties, or other factors that are difficult to predict and could cause actual events or results to differ materially from those indicated in any such statements. These risks, uncertainties, and other factors include, but are not limited to, those described in our “Risk Factors” in Item 1A of our Annual Report on Form 10-K for the year ended December 31, 2022, which was filed with the SEC on February 10, 2023, and those described from time to time in our future reports filed with the Securities and Exchange Commission.
Any such forward-looking statements are made on the basis of our views and assumptions as of the date of the filing and are not estimates of future performance. Except as required by law, we undertake no obligation to publicly update any forward-looking statements. The reader is cautioned not to place undue reliance on any such statements.

Item 2.     Unregistered Sales of Equity Securities and Use of Proceeds
Issuer Repurchases of Equity Securities
In February 2023, our Board of Directors approved a share repurchase program (our “Share Repurchase Program”), pursuant to which we are authorized to repurchase up to $3.0 billion of our common stock. Our Share Repurchase Program does not have an expiration date and can be discontinued at any time. The table set forth below shows repurchases of securities by us during the three months ended September 30, 2023 under our Share Repurchase Program.
PeriodTotal Number
of Shares Purchased
Average Price
Paid per Share
Total Number of Shares
Purchased as Part of
Publicly Announced
Plans or Programs (1)
Approximate Dollar Value
 of Shares that May Yet be
Purchased Under the
Plans or Programs (1)
July 1, 2023 to July 31, 2023
— $— — $2,838,895,548 
August 1, 2023 to August 31, 2023
179,355 $347.96 179,355 $2,776,487,068 
September 1, 2023 to September 30, 2023
173,200 $349.65 173,200 $2,715,927,898 
Total352,555 $348.79 352,555 $2,715,927,898 
(1) Under our Share Repurchase Program, we are authorized to purchase shares from time to time through open market or privately negotiated transactions. Such purchases may be pursuant to Rule 10b5-1 plans or other means as determined by our management and in accordance with the requirements of the Securities and Exchange Commission.


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Item 5.     Other Information
Rule 10b5-1 Trading Plans
Our policy governing transactions in our securities by our directors, officers, and employees permits our officers, directors and employees to enter into trading plans complying with Rule 10b5-1 under the Securities Exchange Act of 1934, as amended. The following table describes the written plans for the sale of our securities adopted by our executive officers and directors during the third quarter of 2023, each of which is intended to satisfy the affirmative defense conditions of Rule 10b5-1 (each, a “Trading Plan”).
Name and TitleDate of Adoption of Trading PlanScheduled Expiration Date of Trading Plan (1)Maximum Shares Subject to Trading Plan
E. Morrow “Morrey” Atkinson III
EVP, Chief Technical Operations Officer, Head of Biopharmaceutical Sciences and Manufacturing Operations
8/22/20234/30/2024
9,224(2)
Reshma Kewalramani
President, Chief Executive Officer and Director
8/11/20238/15/2024
27,330
Jeffrey M. Leiden
Executive Chairman
8/4/20235/15/2025
40,454(2)
Bastiano Sanna
EVP, Chief of Cell and Genetic Therapies
8/25/20238/9/2024
32,833(2)
Charles F. Wagner, Jr.
EVP, Chief Financial Officer
8/18/20238/9/2024
6,000
(1) A Trading Plan may expire on an earlier date if all contemplated transactions are completed before such Trading Plan’s expiration date, upon termination by broker or the holder of the Trading Plan, or as otherwise provided in the Trading Plan.
(2) The maximum shares listed has not been reduced by the number of shares of common stock that will be withheld to satisfy tax withholding obligations at future vesting dates because such number of shares is not yet determinable.

Item 6.    Exhibits
Exhibit Number
Exhibit Description
31.1
31.2
32.1
101.INSXBRL Instance - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
101.SCHXBRL Taxonomy Extension Schema
101.CALXBRL Taxonomy Extension Calculation
101.LABXBRL Taxonomy Extension Labels
101.PREXBRL Taxonomy Extension Presentation
101.DEFXBRL Taxonomy Extension Definition
104Cover Page Interactive Data File––the cover page interactive data file does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.

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SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
Vertex Pharmaceuticals Incorporated
November 7, 2023
By:
/s/ Charles F. Wagner, Jr.
Charles F. Wagner, Jr.
Executive Vice President, Chief Financial Officer
(principal financial officer and
duly authorized officer)

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Document

Exhibit 31.1
CERTIFICATION
I, Reshma Kewalramani, certify that:
1.I have reviewed this Quarterly Report on Form 10-Q of Vertex Pharmaceuticals Incorporated;
2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
a)designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
b)designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
c)evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
d)disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):
a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.
Date: November 7, 2023/s/ Reshma Kewalramani
Reshma Kewalramani
Chief Executive Officer and President


Document

Exhibit 31.2
CERTIFICATION
I, Charles F. Wagner, Jr., certify that:
1.I have reviewed this Quarterly Report on Form 10-Q of Vertex Pharmaceuticals Incorporated;
2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
a)designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
b)designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
c)evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
d)disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):
a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.
Date: November 7, 2023/s/ Charles F. Wagner, Jr.
Charles F. Wagner, Jr.
Executive Vice President and Chief Financial Officer

Document

Exhibit 32.1
SECTION 906 CEO/CFO CERTIFICATION
Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) each of the undersigned officers of Vertex Pharmaceuticals Incorporated, a Massachusetts corporation (the “Company”), does hereby certify, to such officer’s knowledge, that the Quarterly Report on Form 10-Q for the quarter ended September 30, 2023 (the “Form 10-Q”) of the Company fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, and the information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Company.
Date: November 7, 2023
/s/ Reshma Kewalramani
Reshma Kewalramani
Chief Executive Officer and President
Date: November 7, 2023
/s/ Charles F. Wagner, Jr.
Charles F. Wagner, Jr.
Executive Vice President and Chief Financial Officer