OVERVIEW



We invest in scientific innovation to create transformative medicines for people
with serious diseases with a focus on specialty markets. We have four approved
medicines to treat cystic fibrosis, or CF, a life-threatening genetic disease,
and are focused on increasing the number of people with CF eligible and able to
receive our medicines through label expansions, approval of new medicines, and
expanded reimbursement. We are broadening our pipeline into additional disease
areas through internal research efforts and accessing external innovation
through business development transactions.

Our triple combination regimen, TRIKAFTA/KAFTRIO
(elexacaftor/tezacaftor/ivacaftor and ivacaftor), was approved in 2019 in the
United States, or U.S., and in 2020 in the European Union, or E.U. Collectively,
our four medicines are being used by the majority of the approximately 83,000
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 approximately 90% of people
with CF. We also are pursuing genetic therapies for the remaining people with CF
who may not be helped by our current CF medicines.

Beyond CF, we continue to research and develop product candidates for the treatment of serious diseases, including sickle cell disease, beta thalassemia, APOL1-mediated kidney disease, type 1 diabetes, pain, alpha-1 antitrypsin deficiency, Duchenne muscular dystrophy, and myotonic dystrophy type 1.

Financial Highlights

Revenues In the first quarter of 2022, our net product revenues continued to increase due


                 to the strong launches of TRIKAFTA/KAFTRIO in multiple 

countries internationally


                 and the strong performance of TRIKAFTA in the U.S., 

including the June 2021 launch


                 of TRIKAFTA for children with CF 6 through 11 years of age.
Expenses         Our total research and development, or R&D, and selling, general and
                 administrative, or SG&A, expenses increased to $818.3

million in the first quarter


                 of 2022 as compared to $648.1 million in the first quarter 

of 2021 primarily due


                 to the progression of several product candidates into mid- 

to late-stage clinical


                 development. In the first quarter of 2022, cost of sales 

was 12% of our net


                 product revenues.
Cash             Our cash, cash equivalent and marketable securities 

increased to $8.2 billion as


                 of March 31, 2022 as compared to $7.5 billion as of 

December 31, 2021 primarily


                 due to our net product revenues and profitability.



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Business Updates

Marketed Products

We expect to continue to grow our CF business by increasing the number of people
with CF eligible and able to receive our medicines and providing improved
treatment options for people who are already eligible for one of our medicines.
Recent and anticipated progress in activities supporting these efforts is
included below.

•In January, the European Commission and the U.K.'s Medicines and Healthcare
products Regulatory Agency granted marketing authorization for KAFTRIO in the
treatment of children with CF 6 through 11 years of age who have at least one
F508del mutation in the CFTR gene.

•We filed a supplemental New Drug Application, or sNDA, with the U.S. Food and
Drug Administration, or FDA, for ORKAMBI for its use in children with CF 12
months to less than 24 months of age. We plan to submit regulatory filings in
Europe in the second quarter of 2022.

•We completed enrollment in our Phase 3 study of TRIKAFTA/KAFTRIO in children with CF 2 through 5 years of age. We plan to file an sNDA with the FDA in 2022.



•We entered into a reimbursement agreement with the Australian Pharmaceutical
Benefits Scheme for TRIKAFTA for the treatment of people with CF 12 years of age
and older who have at least one F508del mutation in the CFTR gene.

•Health Canada granted marketing authorization for TRIKAFTA in the treatment of children with CF 6 through 11 years of age.

•TRIKAFTA/KAFTRIO is now approved and reimbursed or accessible in more than 25 countries.



Pipeline

We continue to advance a pipeline of potentially transformative small molecule
and cell and genetic therapies aimed at treating serious diseases. Recent and
anticipated progress in activities supporting these efforts is included below.

Cystic Fibrosis



•We are conducting two Phase 3 global, randomized, double-blind,
active-controlled clinical trials evaluating our new once-daily investigational
triple combination of VX-121/tezacaftor/VX-561 in patients with CF. Sites across
both studies are open and enrolling, and enrollment in both trials is expected
to be completed in late 2022 or early 2023.

•In collaboration with Moderna, we are developing CF mRNA therapeutics for the
treatment of people with CF who do not produce any CFTR protein. We have
completed IND-enabling studies and expect to submit an Investigational New Drug
Application, or IND, for this program in the second half of 2022.

Beta Thalassemia and Sickle Cell Disease



•We are evaluating the use of a non-viral ex vivo CRISPR gene-editing therapy,
CTX001, for the treatment of severe sickle cell disease, or SCD, and
transfusion-dependent beta thalassemia, or TDT. Enrollment is complete in the
ongoing clinical trials evaluating CTX001 in severe SCD and TDT, and two new
Phase 3 studies of CTX001 have been initiated in pediatric patients with SCD and
TDT. We anticipate presenting updated data for this program later this year and
making regulatory submissions for CTX001 in late 2022.

APOL1-Mediated Kidney Disease



•Based on positive Phase 2 data for VX-147, our small molecule for the treatment
of APOL1-mediated focal segmental glomerulosclerosis, or FSGS, we initiated
pivotal development of VX-147 in a single Phase 2/3 study in patients with
APOL1-mediated kidney disease with two APOL1 mutations and proteinuric kidney
disease.


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Pain



•We have discovered multiple selective small molecule inhibitors of NaV1.8 with
the objective of creating a new class of pain medicines that have the potential
to provide effective pain relief. In March, we announced positive Phase 2 data
for VX-548, a NaV 1.8 inhibitor, for the non-opioid treatment of acute pain. We
expect to advance VX-548 into pivotal development in the second half of 2022,
following discussions with regulators.

Type 1 Diabetes



•VX-880 is a stem cell-derived, allogeneic, fully differentiated,
insulin-secreting islet cell replacement therapy, used in combination with
immunosuppression to protect the implanted cells. VX-880 is being evaluated in a
Phase 1/2 clinical trial as a potential treatment for type 1 diabetes, or T1D.
This program has been placed on clinical hold in the U.S. by the FDA.

•We recently announced updated results for the first T1D patient in this
clinical trial, as well as initial results from the second patient dosed,
establishing proof-of-concept for VX-880 in the treatment of T1D. The results
demonstrated restoration of islet cell function and rapid improvements in
multiple measures. We also announced an update regarding a third patient treated
with VX-880, who has received the full target dose of VX-880. VX-880 safety data
to date is generally consistent with the immunosuppressive regimen used in the
study and the perioperative period.

•We continue to advance additional programs in T1D, in which these same stem
cell-derived, fully differentiated, insulin-secreting islet cells are
encapsulated and implanted in an immunoprotective device or modified to produce
hypoimmune stem cells islets with the goal of eliminating the need for
immunosuppression. We are conducting IND-enabling studies for the cells and
device program, and we expect to submit an IND for this program in 2022.

Alpha-1 Antitrypsin, or AAT, Deficiency



•We are working to address the underlying genetic cause of AAT deficiency by
developing novel small molecule correctors of Z-AAT protein folding, with a goal
of enabling the secretion of functional AAT into the blood and addressing both
the lung and the liver aspects of AAT deficiency. We plan to advance one or more
small molecule Z-AAT correctors into the clinic in 2022.

Duchenne Muscular Dystrophy (DMD)



•We are investigating a novel approach to treating DMD which delivers
CRISPR/Cas9 gene-editing technology to muscle cells with the goal of restoring
near-full length dystrophin protein expression by targeting specific mutations
in the dystrophin gene that cause the disease. We have advanced our first in
vivo gene-editing therapy for DMD into IND-enabling studies.

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 actively pursuing a pipeline of product
candidates for the treatment of serious diseases outside of CF. Our strategy is
to combine transformative advances in the understanding of human disease biology
and the science of therapeutics in order to discover and develop new medicines.
This approach includes advancing multiple compounds from each program, spanning
multiple modalities, into early clinical trials and evaluating patient data to
inform discovery and development of additional compounds, with the goal of
bringing first-in-class and best-in-class therapies to patients, and 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.


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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. 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 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 in order 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 in order 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. 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.

COVID-19

We continue to monitor the impacts of the COVID-19 global pandemic on our
business, including in our clinical trials, manufacturing facilities and
capabilities, and ability to access necessary resources. COVID-19 has not
materially affected our supply chain or the demand for our medicines, and we
believe that we will be able to continue to supply all of our approved medicines
to patients globally. We adjusted our business operations in response to
COVID-19 and have continued to monitor local COVID-19 trends and government
guidance for each of our site locations. We are utilizing a site-specific
approach to assess and permit employee access to our sites. Currently, our sites
are open to certain employees where appropriate and permitted by local laws and
guidelines.

Strategic Transactions

Acquisitions

As part of our business strategy, we seek to acquire products, product
candidates and other technologies and businesses that are aligned with our
corporate and research and development strategies and complement and advance our
ongoing research and development efforts. In 2019, we invested significantly in
business development transactions designed to augment our pipeline, including
the acquisition of Semma Therapeutics, Inc., or Semma, a privately-held company
focused on the use of stem cell-derived human islets as a treatment for T1D, and
Exonics Therapeutics, Inc., or Exonics, a privately-held company focused on
creating transformative gene-editing therapies to repair mutations that cause
DMD and other severe neuromuscular diseases, including myotonic dystrophy type
1, or DM1. We expect to continue to identify and evaluate potential acquisitions
and may include larger transactions or later-stage assets.


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Collaboration and 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. 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-License Agreements

We have entered into collaborations with biotechnology and pharmaceutical
companies in order to acquire rights or to license product candidates or
technologies that enhance our pipeline and/or our research capabilities. Over
the last several years, we entered into collaboration agreements with a number
of companies, including Arbor Biotechnologies, Inc., CRISPR Therapeutics AG,
Kymera Therapeutics, Inc., Mammoth Biosciences, Inc., Moderna, Inc., and
Obsidian 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 research and development expenses; however, depending
on many factors, including the structure of the collaboration, 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.

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.

In the first quarter of 2022 and 2021, our research and development expenses
included $2.0 million and $1.7 million, 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. None of our out-license agreements had a significant
impact on our condensed consolidated statement of operations during the three
months ended March 31, 2022 and 2021.

Strategic Investments



In connection with our business development activities, we have periodically
made equity investments in our collaborators. As of March 31, 2022, we held
strategic equity investments in certain public and private companies, and we
expect to make additional strategic equity investments in the future. While 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 type of instrument, our strategic 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 statement of
operations.



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RESULTS OF OPERATIONS

                                                           Three Months Ended March 31,
                                                                                                     2022                  2021               % Change
                                                                                                 (in millions, except percentages and per share amounts)
Revenues                                                                                       $     2,097.5          $   1,724.3                22%
Operating costs and expenses                                                                         1,056.6                836.5                26%
Income from operations                                                                               1,040.9                887.8                17%
Other non-operating expense, net                                                                       (86.1)               (66.9)               29%
Provision for income taxes                                                                             192.7                167.8                15%
Net income                                                                                     $       762.1          $     653.1                17%

Net income per diluted common share                                                            $        2.96          $      2.49
Diluted shares used in per share calculations                                                          257.9                261.9


Revenues

                                                                Three Months Ended March 31,
                                                                                                            2022                    2021               % Change
                                                                                                                   (in millions, except percentages)
TRIKAFTA/KAFTRIO                                                                                    $    1,761.6               $   1,193.2                48%
SYMDEKO/SYMKEVI                                                                                             64.8                     125.1               (48)%
ORKAMBI                                                                                                    132.1                     218.7               (40)%
KALYDECO                                                                                                   139.0                     186.3               (25)%
Product revenues, net                                                                               $    2,097.5               $   1,723.3                22%
Other revenues                                                                                                 -                       1.0                **
Total revenues                                                                                      $    2,097.5               $   1,724.3                22%
                                                                                                                                                  ** Not meaningful


Product Revenues, Net

In the first quarter of 2022, our net product revenues increased by
$374.2 million, or 22%, as compared to the first quarter of 2021, primarily due
to the strong launches of TRIKAFTA/KAFTRIO in multiple countries internationally
and the strong performance of TRIKAFTA in the U.S., including the June 2021
launch of TRIKAFTA for children with CF 6 through 11 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 March 31,
                                                                                                            2022                    2021               % Change
                                                                                                                   (in millions, except percentages)
United States                                                                                       $    1,368.2               $   1,253.4                9%
ex-U.S.                                                                                                    729.3                     469.9                55%
Product revenues, net                                                                               $    2,097.5               $   1,723.3                22%



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Other Revenues



We earned a collaborative milestone of $1.0 million in the first quarter of 2021
and did not have any other revenues in the first quarter of 2022. Our other
revenues have historically fluctuated significantly from one period to another
based on our collaborative out-license activities and may continue to fluctuate
in the future.

Operating Costs and Expenses

                          `                                      Three Months Ended March 31,
                                                                                                           2022                  2021               % Change
                                                                                                                  (in millions, except percentages)
Cost of sales                                                                                        $       245.8          $     192.3                28%
Research and development expenses                                                                            603.1                456.0                

32%


Selling, general and administrative expenses                                                                 215.2                192.1                

12%


Change in fair value of contingent consideration                                                              (7.5)                (3.9)               92%
Total costs and expenses                                                                             $     1,056.6          $     836.5                26%


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 royalties on sales of TRIKAFTA/KAFTRIO slightly lower 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 12% and 11% in the first quarter of
2022 and 2021, respectively.

Research and Development Expenses



                                                         Three Months Ended March 31,
                                                                                                  2022                  2021               % Change
                                                                                                         (in millions, except percentages)
Research expenses                                                                            $      145.8          $     129.8                12%
Development expenses                                                                                457.3                326.2                40%
Total research and development expenses                                                      $      603.1          $     456.0                32%


Our research and development expenses include internal and external costs
incurred for research and development of our products and product candidates and
expenses related to certain technologies that we acquire or license through
business development transactions. 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. Apart from
upfront, contingent milestone, or other payments related to technologies that we
have acquired or licensed through our business development transactions, our
internal costs are significantly greater than our external costs. All research
and development costs for our products and product candidates are expensed as
incurred.

Since January 2020, we have incurred approximately $5.5 billion in research and
development 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


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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. 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. Until we have data from
Phase 3 clinical trials, 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 March 31,
                                                                                                    2022                  2021               % Change
                                                                                                           (in millions, except percentages)
Research Expenses:
Salary and benefits                                                                            $       40.2          $      34.7                16%
Stock-based compensation expense                                                                       22.9                 21.0                9%
Outsourced services and other direct expenses                                                          39.5                 40.1               (1)%
Upfront and milestone expenses                                                                          2.0                  1.7                18%
Infrastructure costs                                                                                   41.2                 32.3                28%
Total research expenses                                                                        $      145.8          $     129.8                12%


We expect to continue to invest in our research programs with a focus on
creating transformative medicines for serious diseases. Our research expenses
have historically fluctuated, and are expected to continue to fluctuate, from
one period to another due to upfront, milestone, and other payments related to
technologies that we have acquired or licensed through our business development
transactions. Our research expenses, apart from these payments, have been
increasing over the last several years as we have invested in our pipeline and
expanded our cell and genetic therapy capabilities.

Development Expenses

                                                           Three Months Ended March 31,
                                                                                                    2022                  2021               % Change
                                                                                                           (in millions, except percentages)
Development Expenses:
Salary and benefits                                                                            $      109.9          $      84.5                30%
Stock-based compensation expense                                                                       57.5                 51.8                11%
Outsourced services and other direct expenses                                                         212.7                132.8                60%

Infrastructure costs                                                                                   77.2                 57.1                35%
Total development expenses                                                                     $      457.3          $     326.2                40%


Our development expenses increased by $131.1 million, or 40%, in the first
quarter of 2022 as compared to the first quarter of 2021, primarily due to costs
to support clinical trials associated with our advancing pipeline programs,
including our CF triple combination of VX-121/tezacaftor/VX-561, pain and T1D.
We are investing in both our internal headcount and infrastructure and also
leveraging outsourced services to support these programs. In the first quarter
of 2022 and 2021, costs related to our CF programs represented the largest
portion of our development costs.

Selling, General and Administrative Expenses



                                                            Three Months Ended March 31,
                                                                                                     2022                  2021               % Change
                                                                                                            (in millions, except percentages)
Selling, general and administrative expenses                                                    $      215.2          $     192.1                12%



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Selling, general and administrative expenses increased by 12% in the first quarter of 2022 as compared to the first quarter of 2021, 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 contingent consideration potentially payable to Exonics' former equity holders decreased by $7.5 million and $3.9 million in the first quarter of 2022 and 2021, respectively.

Other Non-Operating Income (Expense), Net

Interest Income

Interest income was $1.6 million and $1.5 million in the first quarter of 2022 and 2021, respectively. Our future interest income will be dependent on the amount of, and prevailing market interest rates on, our outstanding cash equivalents and available-for-sale debt securities.

Interest Expense

Interest expense was $14.9 million and $15.7 million in the first quarter of 2022 and 2021, 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 $72.8 million and $52.7 million in
the first quarter of 2022 and 2021, respectively, primarily related to net
unrealized losses of $75.6 million and $52.3 million in the first quarter of
2022 and 2021, respectively, resulting from changes in the fair value of our
strategic investments. As of March 31, 2022, the fair value of our investments
in publicly traded companies was $155.3 million. To the extent that we continue
to hold strategic investments in publicly traded companies, we will record other
income (expense) related to these strategic 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 investments.

Income Taxes



We recorded provisions for income taxes of $192.7 million and $167.8 million in
the first quarter of 2022 and 2021, respectively. Our effective tax rate of 20%
for each of the first quarter of 2022 and 2021 was lower than the U.S. statutory
rate primarily due to excess tax benefits related to stock-based compensation.

Net Income



Our net income increased to $762.1 million in the first quarter of 2022 as
compared to $653.1 million in the first quarter of 2021 primarily due to
increased operating income resulting from our product revenues partially offset
by increased cost of sales, development expenses to progress several product
candidates into mid- to late-stage clinical development, and selling, general
and administrative expenses to support the commercialization of our medicines
and increased support for our pipeline product candidates.



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LIQUIDITY AND CAPITAL RESOURCES

The following table summarizes the components of our financial condition as of March 31, 2022 and December 31, 2021:


                                          As of March 31, 2022           As of December 31, 2021            % Change
                                                               (in millions, except percentages)
Cash, cash equivalents and marketable
securities                              $             8,238.1          $                7,524.9                9%
Working Capital:
Total current assets                                 10,361.3                           9,560.6                8%
Total current liabilities                            (2,180.2)                         (2,142.0)               2%
Total working capital                   $             8,181.1          $                7,418.6               10%


Working Capital

As of March 31, 2022, total working capital was $8.2 billion, which represented
an increase of $762.5 million from $7.4 billion as of December 31, 2021. The
increase in total working capital in the first quarter of 2022 was primarily
related to $956.2 million of cash provided by operations.

Cash Flows

                                                 Three Months Ended March 31,
                                                      2022                    2021
                                                         (in millions)

Net cash provided by (used in):


      Operating activities                $        956.2                   $  921.0
      Investing activities                $        (51.0)                  $  (74.3)
      Financing activities                $        (95.4)                  $ (518.7)


Operating Activities

Cash provided by operating activities were $956.2 million in the first quarter
of 2022 as compared to $921.0 million in the first quarter of 2021, primarily
due to a $109.0 million increase in our net income resulting from increased
product revenues partially offset by commensurate increase in accounts
receivable.

Investing Activities



Cash used in investing activities were $51.0 million and $74.3 million in the
first quarter of 2022 and 2021, respectively. These investing activities were
primarily related to purchases of property and equipment.

Financing Activities



Cash used in financing activities were $95.4 million and $518.7 million in the
first quarter of 2022 and 2021, respectively. In the first quarter of 2022, the
largest portion of our financing activities related to payments related to our
employee stock benefit plans. In the first quarter of 2021, the largest portion
of our financing activities were share repurchases pursuant to our share
repurchase programs totaling $424.9 million.

Sources and Uses of Liquidity



As of March 31, 2022, we had cash, cash equivalents and marketable securities of
$8.2 billion, which represented an increase of $713.2 million from $7.5 billion
as of December 31, 2021. 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 products 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 the amounts of future revenues generated by


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our products, and the potential introduction of one or more of our other product
candidates to the market, the level of 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 $2.5 billion pursuant to two revolving credit
facilities. We may repay and reborrow amounts under these revolving credit
agreements without penalty. Subject to certain conditions, we may request that
the borrowing capacity for each of the credit agreements be increased by an
additional $500.0 million, for a total of $3.5 billion collectively. Negative
covenants in our credit agreement may prohibit or limit our ability to access
these sources of liquidity. As of March 31, 2022, 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 and to operate our organization.

•Facility and finance lease obligations.

•Royalties we pay to the Cystic Fibrosis Foundation on sales of our CF products.



•Starting in 2022, our cash paid for income taxes will substantially increase
due to the elimination of the option in the U.S. to deduct research and
development expenses in the period they are incurred and instead, as required by
the Tax Cuts and Job Act of 2017, amortize them over a five year period if they
are from the U.S. and fifteen years if they are from foreign jurisdictions.

In addition, we have significant potential future capital requirements including:



•We have entered into certain business development-related agreements with third
parties that include the funding of certain research, development, 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. Our obligation to fund these research and development and
commercialization efforts and to pay these potential milestone and royalties is
contingent upon continued involvement in the programs and/or the lack of any
adverse events that could cause the discontinuance of the programs associated
with our collaborations and acquisitions. We may enter into additional business
development transactions, including acquisitions, collaborations and equity
investments, that require additional capital.

•To the extent we borrow amounts under our existing credit agreements, we would
be required to repay any outstanding principal amounts in the third quarter of
2022 or 2024.

•As of March 31, 2022, we had $0.5 billion available under our 2021 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, 2021, which was filed with the Securities and Exchange Commission, or SEC, on February 9, 2022.

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


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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
three months ended March 31, 2022, 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, 2021, which was filed with the SEC on February 9,
2022.


RECENT ACCOUNTING PRONOUNCEMENTS

For a discussion of recent accounting pronouncements, please refer to Note A, "Basis of Presentation and Accounting Policies."

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