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 second 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, acquired in-process research and


                 development, or AIPR&D, and selling, general and 

administrative, or SG&A, expenses


                 decreased to $877.3 million in the second quarter of 2022 

as compared to $1.6


                 billion in the second quarter of 2021. The decrease was 

primarily due to a $900.0


                 million upfront payment we made in the second quarter of 

2021 to CRISPR in


                 connection with an amendment to our exa-cel collaboration 

partially offset by the


                 progression of several product candidates into mid- to 

late-stage clinical


                 development. Cost of sales was 12% and 13% of our net 

product revenues in the


                 second quarter of 2022 and 2021, respectively.
Cash             Our cash, cash equivalent and marketable securities 

increased to $9.3 billion as


                 of June 30, 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.

•We have completed the Phase 3 study of TRIKAFTA/KAFTRIO in children 2 to 5
years old. We expect to present results from this trial at a medical forum later
in 2022 and to submit global regulatory filings later this year.

•In April, Health Canada granted marketing authorization for TRIKAFTA in children 6 to 11 years of age.



•We have filed a supplemental New Drug Application with the U.S. Food and Drug
Administration, or FDA, and a marketing authorization application with the
European Medicines Agency, or EMA, for the use of ORKAMBI in children 12 months
to less than 24 months old. The FDA has assigned a Prescription Drug User Fee
Act (PDUFA) target date of September 4, 2022.

•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 people with CF 12 years of age
and older. Sites across both studies are open and enrolling, and enrollment in
both trials is expected to be completed in late 2022 or early 2023. We also
initiated a study of VX-121/tezacaftor/VX-561 in children with CF 6 to 11 years
of age.

•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,
exa-cel (formerly known as CTX001), for the treatment of sickle cell disease, or
SCD, and transfusion-dependent beta thalassemia, or TDT. Enrollment is complete
in the ongoing clinical trials evaluating exa-cel in SCD and TDT, and two
additional Phase 3 studies of exa-cel have been initiated in pediatric patients,
one in TDT and a second in SCD. In June 2022, data from 75 people with follow-up
ranging from 1.2 to 37.2 months after exa-cel infusion were presented at the
European Hematology Association Congress and continued to support the profile of
exa-cel as a one-time functional cure for people with TDT and SCD, showing
consistent and durable benefit with longer term data.

•We have completed discussions with the EMA and the United Kingdom's Medicines
and Healthcare products Regulatory Agency on the submission package for exa-cel
and are on track to submit for regulatory approvals of exa-cel for SCD and TDT
in Europe and the United Kingdom by the end of 2022. Discussions with the FDA
are ongoing.

APOL1-Mediated Kidney Disease

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


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•The FDA granted inaxaplin Breakthrough Therapy designation for APOL1-mediated
FSGS and the EMA granted inaxaplin Priority Medicines, or PRIME, designation for
APOL1-mediated kidney disease, or AMKD.

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 initiate Phase 3 development of VX-548 for the treatment of acute pain
in the fourth quarter of 2022.

•The FDA granted VX-548 Breakthrough Therapy designation for the treatment of moderate to severe acute pain.

•We intend to initiate a Phase 2 study of VX-548 in neuropathic pain by the end of 2022.



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.
The VX-880 Phase 1/2 clinical trial has resumed enrollment in the U.S. following
a clinical hold imposed by the FDA.

•Earlier this year, we provided data on the first two T1D patients dosed in this
clinical trial, including that both patients had achieved glucose-responsive
insulin production, improvements in glycemic control, and reductions in
exogenous insulin requirements. Additional data presented at American Diabetes
Association Scientific Sessions Conference also demonstrated significant
increases in the blood-glucose time-in-range compared to the baseline, following
treatment with 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 Deficiency



•We are working to address the underlying genetic cause of alpha-1 antitrypsin,
or AAT, deficiency by 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 AAT deficiency.
We plan to advance one or more small molecule Z-AAT correctors into the clinic
in 2022.

Duchenne Muscular Dystrophy

•We are investigating a novel approach to treating Duchenne muscular dystrophy,
or 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. We expect to submit an IND for this program in 2023.

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.


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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. 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.


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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 the second quarter of 2022, we acquired Catalyst Biosciences, Inc.'s, or
Catalyst's, portfolio of protease medicines that target the complement system
and related intellectual property. In July 2022, we announced that we had
entered into a definitive agreement under which we will acquire ViaCyte Inc., a
privately held biotechnology company with tools, technologies and assets with
potential to accelerate development of our T1D programs.

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 Therapeutics AG, Kymera
Therapeutics, 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 acquired in-process 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. 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.

Acquired In-Process Research and Development



In the first half of 2022 and 2021, our AIPR&D included $63.9 million and $960.1
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 operations during the first half of 2022 and
2021.

Strategic Investments

In connection with our business development activities, we have periodically
made equity investments in our collaborators. As of June 30, 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 June 30,                                  Six Months Ended June 30,
                                            2022                  2021             Change               2022                  2021             Change
                                                                   (in

millions, except percentages and per share amounts) Revenues

$      2,196.2          $ 1,793.4             22%           $      4,293.7          $ 3,517.7             22%
Operating costs and expenses                 1,089.9            1,831.3            (40)%                 2,146.5            2,667.8            (20)%
Income (loss) from operations                1,106.3              (37.9)             **                  2,147.2              849.9             153%
Other non-operating expense, net               (81.9)              (6.3)             **                   (168.0)             (73.2)            130%
Provision for (benefit from) income
taxes                                          213.9             (111.2)             **                    406.6               56.6              **
Net income                            $        810.5          $    67.0              **           $      1,572.6          $   720.1             118%

Net income per diluted common share $ 3.13 $ 0.26

                       $         6.09          $    2.75
Diluted shares used in per share
calculations                                   258.7              261.0                                    258.3              261.5
                                                                                                                                      ** Not meaningful


Revenues

                                               Three Months Ended June 30,                                  Six Months Ended June 30,
                                                 2022                  2021             Change               2022                  2021             Change
                                                                                   (in millions, except percentages)
TRIKAFTA/KAFTRIO                           $      1,893.2          $ 1,255.6             51%           $      3,654.8          $ 2,448.8             49%
SYMDEKO/SYMKEVI                                      42.7              133.5            (68)%                   107.5              258.6            (58)%
ORKAMBI                                             121.6              221.0            (45)%                   253.7              439.7            (42)%
KALYDECO                                            138.7              183.3            (24)%                   277.7              369.6            (25)%
Product revenues, net                             2,196.2            1,793.4             22%                  4,293.7            3,516.7             22%
Other revenues                                          -                  -              **                        -                1.0              **
Total revenues                             $      2,196.2          $ 1,793.4             22%           $      4,293.7          $ 3,517.7             22%
                                                                                                                                           ** Not meaningful


Product Revenues, Net

In the second quarter and first half of 2022, our net product revenues increased
by $402.8 million and $777.0 million, or 22% as compared to the second quarter
and first half of 2021, respectively, 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 June 30,                                  Six Months Ended June 30,
                                                 2022                  2021             Change               2022                  2021             Change
                                                                                   (in millions, except percentages)
United States                              $      1,415.1          $ 1,256.9             13%           $      2,783.3          $ 2,510.4             11%
ex-U.S.                                             781.1              536.5             46%                  1,510.4            1,006.3             50%
Product revenues, net                      $      2,196.2          $ 1,793.4             22%           $      4,293.7          $ 3,516.7             22%



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Other Revenues



We earned a collaborative milestone of $1.0 million in the first half of 2021
and did not have any "Other revenues" in the first half 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 June 30,                                  Six Months Ended June 30,
                                                  2022                  2021             Change               2022                  2021             Change
                                                                                    (in millions, except percentages)
Cost of sales                               $        261.8          $   228.0             15%           $        507.6          $   420.3

21%


Research and development expenses                    600.1              448.7             34%                  1,201.2              903.0           

33%


Acquired in-process research and
development expenses                                  61.9              958.4            (94)%                    63.9              960.1           

(93)%


Selling, general and administrative
expenses                                             215.3              194.6             11%                    430.5              386.7           

11%


Change in fair value of contingent
consideration                                        (49.2)               1.6              **                    (56.7)              (2.3)             **
Total costs and expenses                    $      1,089.9          $ 1,831.3            (40)%          $      2,146.5          $ 2,667.8            (20)%
                                                                                                                                            ** Not meaningful


Beginning with the second quarter of 2022, we are classifying upfront,
contingent milestone, or other payments pursuant to our business development
transactions, including collaborations, licenses of third-party technologies,
and asset acquisitions as "Acquired in-process research and development
expenses," or "AIPR&D," in our condensed consolidated statements of operations.
To conform prior periods to our current presentation, we have reclassified
$958.4 million and $960.1 million from "Research and development expenses" to
"AIPR&D" for the three and six months ended June 30, 2021, respectively.

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 13% in the second quarter of
2022 and 2021, respectively. Our cost of sales as a percentage of our net
product revenues was 12% in each of the first half of 2022 and 2021,
respectively.

Research and Development Expenses



                                    Three Months Ended June 30,                              Six Months Ended June 30,
                                       2022              2021            Change                2022                 2021            Change
                                                                       (in millions, except percentages)
Research expenses                   $  160.9          $ 122.3             32%           $         304.7          $ 250.4             22%
Development expenses                   439.2            326.4             35%                     896.5            652.6             37%
Total research and development
expenses                            $  600.1          $ 448.7             34%           $       1,201.2          $ 903.0             33%


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


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outsourced research by individual program. 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 $6.1 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.
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 June 30,                             Six Months Ended June 30,
                                         2022              2021            Change               2022                2021            Change
                                                                        (in millions, except percentages)
Research Expenses:
Salary and benefits                   $   38.1          $  33.2             15%           $        78.3          $  67.9             15%
Stock-based compensation expense          19.5             18.0              8%                    42.4             39.0              9%
Outsourced services and other direct
expenses                                  44.0             39.0             13%                    83.5             79.1              6%
Intangible asset impairment charge        13.0                -              **                    13.0                -              **
Infrastructure costs                      46.3             32.1             44%                    87.5             64.4             36%
Total research expenses               $  160.9          $ 122.3             32%           $       304.7          $ 250.4             22%
                                                                                                                           ** 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 and infrastructure. 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 June 30,                             Six Months Ended June 30,
                                         2022              2021            Change               2022                2021            Change
                                                                        (in millions, except percentages)
Development Expenses:
Salary and benefits                   $  101.0          $  79.1             28%           $       210.9          $ 163.6             29%
Stock-based compensation expense          50.0             44.6             12%                   107.5             96.4             12%
Outsourced services and other direct
expenses                                 210.6            144.0             46%                   423.3            276.8             53%
Infrastructure costs                      77.6             58.7             32%                   154.8            115.8             34%
Total development expenses            $  439.2          $ 326.4             35%           $       896.5          $ 652.6             37%



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Our development expenses increased by $112.8 million and $243.9 million, or 35%
and 37%, in the second quarter and first half of 2022 as compared to the second
quarter and first half of 2021, respectively, primarily due to increased 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 half of
2022 and 2021, costs related to our CF programs represented the largest portion
of our development costs.

Acquired In-process Research and Development Expenses



                                        Three Months Ended June 30,                               Six Months Ended June 30,
                                           2022                 2021            Change              2022                2021            Change
                                                                          (in millions, except percentages)
Acquired in-process research and
development expenses                 $         61.9          $ 958.4            (94)%          $       63.9          $ 960.1            (93)%


AIPR&D in the second quarter and first half of 2022 was primarily related to a
$60.0 million payment to Catalyst to acquire their complement portfolio and
related intellectual property. AIPR&D in the second quarter and first half of
2021 included the $900.0 million upfront payment to CRISPR. 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 business development transactions, including collaborations,
licenses of third-party technologies, and asset acquisitions.

Selling, General and Administrative Expenses



                                       Three Months Ended June 30,                             Six Months Ended June 30,
                                          2022              2021            Change               2022                2021            Change
                                                                         (in millions, except percentages)
Selling, general and administrative
expenses                               $  215.3          $ 194.6             11%           $       430.5          $ 386.7             11%


Selling, general and administrative expenses increased by 11% in each of the
second quarter and first half of 2022 as compared to the second quarter and
first half 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 former Exonics
equity holders decreased by $49.2 million and $56.7 million in the second
quarter and first half of 2022, respectively, primarily the result of revision
to the scope of certain gene-editing programs in the second quarter of 2022. The
fair value of contingent consideration increased by $1.6 million and decreased
by $2.3 million in the second quarter and first half of 2021, respectively.

Other Non-Operating Income (Expense), Net

Interest Income



Interest income was $10.8 million and $1.1 million in the second quarter of 2022
and 2021, respectively, and $12.4 million and $2.6 million in the first half of
2022 and 2021, respectively. 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.

Interest Expense



Interest expense was $14.6 million and $15.5 million in the second quarter of
2022 and 2021, respectively, and $29.5 million and $31.2 million in the first
half 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.


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Other Income (Expense), Net



Other income (expense), net was expense of $78.1 million and income of $8.1
million in the second quarter of 2022 and 2021, respectively, and expense of
$150.9 million and $44.6 million in the first half of 2022 and 2021,
respectively. The vast majority of these amounts relate to net unrealized gains
or losses resulting from changes in the fair value of our strategic investments.
As of June 30, 2022, the fair value of our investments in publicly traded
companies was $71.1 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 $213.9 million and $406.6 million in
the second quarter and first half of 2022, respectively, a benefit from income
taxes of $111.2 million in the second quarter of 2021 and a provision for income
taxes of $56.6 million in the first half of 2021. Our effective tax rate of 21%
for the first half of 2022 was similar to the U.S. statutory rate. Our effective
tax rate of 7% for the first half of 2021 was lower than the U.S. statutory rate
primarily due to a $99.7 million discrete tax benefit associated with an
increase in the U.K.'s corporate tax rate from 19% to 25%, which was enacted in
June 2021 and will become effective in April 2023.

Net Income



Our net income increased to $810.5 million and $1.6 billion in the second
quarter and first half of 2022, respectively, as compared to $67.0 million and
$720.1 million in the second quarter and first half of 2021, respectively,
primarily due to the $900.0 million upfront payment we made to CRISPR in the
second quarter of 2021 and increased product revenues. These increases in net
income were partially offset by increased cost of sales, development expenses to
progress several product candidates into mid- to late-stage clinical
development, selling, general and administrative expenses to support the
commercialization of our medicines and increased support for our pipeline
product candidates and income taxes. We also incurred significant unrealized
losses on our strategic investments in second quarter and first half of 2022.


LIQUIDITY AND CAPITAL RESOURCES

The following table summarizes the components of our financial condition as of June 30, 2022 and December 31, 2021:


                                          As of June 30, 2022           As of December 31, 2021            Change
                                                             (in millions, except percentages)
Cash, cash equivalents and marketable
securities                              $            9,253.4          $                7,524.9              23%
Working Capital:
Total current assets                                11,503.5                           9,560.6              20%
Total current liabilities                           (2,556.2)                         (2,142.0)             19%
Total working capital                   $            8,947.3          $                7,418.6              21%


Working Capital

As of June 30, 2022, total working capital was $8.9 billion, which represented an increase of $1.5 billion from $7.4 billion as of December 31, 2021. The increase in total working capital in the first half of 2022 was primarily related to $2.1 billion of cash provided by operations.


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Cash Flows

                                                  Six Months Ended June 30,
                                                      2022                 2021
                                                        (in millions)
        Net cash provided by (used in):
        Operating activities                $      2,096.0              $  721.3
        Investing activities                $       (112.5)             $ (154.0)
        Financing activities                $        (47.7)             $

(485.1)


Operating Activities

Cash provided by operating activities were $2.1 billion in the first half of
2022 as compared to $721.3 million in the first half of 2021, primarily due to a
$852.5 million increase in our net income resulting from the $900.0 million
upfront payment to CRISPR that was recorded within "Acquired in-process research
and development expenses" in the first half of 2021 and changes to accrued
expenses and accounts receivable due to increased product revenues.

Investing Activities

Cash used in investing activities were $112.5 million and $154.0 million in the first half 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 $47.7 million and $485.1 million in the
first half of 2022 and 2021, respectively. In the first half of 2022, the
largest portion of our financing activities were payments related to our
employee stock benefit plans. In the first half 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 June 30, 2022, we had cash, cash equivalents and marketable securities of
$9.3 billion, which represented an increase of $1.7 billion 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 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



As of June 30, 2022, we could borrow up to a total of $2.5 billion pursuant to
two revolving credit facilities and could repay and reborrow amounts under these
revolving credit agreements without penalty. Subject to certain conditions, we
could 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 could prohibit or limit
our ability to access these sources of liquidity. As of June 30, 2022, both
facilities were undrawn, and we were in compliance with these covenants.

In July 2022, we terminated the $500.0 million revolving credit facility that we
entered into in 2019 and entered into a new $500.0 million revolving credit
facility, which matures in July 2027. The $2.0 billion revolving credit facility
that we entered into in 2020 matures in September 2022.

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


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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.

•Cash paid for income taxes.

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, licensing arrangements and acquisitions. We may enter
into additional business development transactions, including acquisitions,
collaborations, licensing arrangements and equity investments, that require
additional capital. For example, in July 2022, we entered into an agreement to
acquire ViaCyte for approximately $320.0 million in cash.

•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 2027.

•As of June 30, 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 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 six months ended June 30, 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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