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Insmed

2024 Annual Report

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Ready.

2024

Annual Report

John, living with bronchiectasis

Readiness is not a milestone. It’s not a moment. Readiness is a state of mind. It’s built on cultural cohesion, adaptive thinking, and the willingness to fail. Readiness is fueled by intention.

At Insmed, we will always be ready to transform the lives of patients and families and change what it means to live with a serious disease. The success we anticipate in 2025 and beyond will never see us rest on our laurels. We have been at the edge of readiness for over a decade, and no matter how much we see our efforts come to fruition, we will always be ready for what’s next.

To our shareholders:

2024 was the single most important year in Insmed’s history—truly one for the record books. This was the year we brought renewed hope to patients and, in the process, showed that we have what it takes to become the next great biotechnology company. It’s extraordinary to reflect on the organization we have become, and to know it’s only the beginning.

Among many successes throughout the year, our defining moment was delivering positive topline results from the landmark Phase 3 ASPEN study of brensocatib in patients with bronchiectasis. These results were a win for the bronchiectasis community, heralding a potential new treatment paradigm for patients with this serious, chronic disease that to date has had no approved therapies. The study not only demonstrated that brensocatib worked in patients with bronchiectasis with a safety profile similar to placebo, but also unlocked an entirely new mechanism of action known as dipeptidyl peptidase 1 (DPP1) inhibition for the potential treatment of other neutrophil-mediated diseases.

To the outside world, the ASPEN readout was the catalyst that put Insmed on the map. But for those of us at Insmed, we know our success did not happen overnight, nor did it happen by chance. It was the result of many years of hard work, perseverance, and trust in both ourselves and the future. As I think about my early days at Insmed 12 years ago with just 30 colleagues, it’s hard to believe that today we number over 1,300 people and are at the threshold of something so meaningful in terms of potential value creation and patient impact.

We are in a rare and enviable position in our industry, and it’s one we don’t take for granted. Against the backdrop of a dismal biotech market with deep investor skepticism, Insmed began 2025 with more than $1.4 billion in cash, continues to achieve double-digit growth for our commercial product, expects a series of highly relevant clinical readouts over the next 12 months, and is preparing for one of the most eagerly anticipated drug launches in the industry later this year, pending U.S. Food and Drug Administration (FDA) approval. Behind these near-term milestones sits our pre-clinical research engine—the answer to what’s next for Insmed that has already been cultivated in house.

But even more important than our many opportunities is the way in which we approach them. Our ambition goes beyond delivering critically needed first- or best-in-class medicines; it’s to be a role model within our industry for building a place where people feel proud and inspired, and genuinely want to work. Culture is everything, and at Insmed, we’re all authors of our culture. We come to the table with different perspectives and experiences, but we share a common belief that our industry can do extraordinary things—and do them the right way. Above all, we believe that if people are given the space and trust to do their best work in the most authentic way, the clear consequence will be a benefit to patients. Now more than ever, this kind of example is needed.

This was the year we brought renewed hope to patients and, in the process, showed that we have what it takes to become the next great biotechnology company.”

We have meticulously laid the groundwork for where we stand now, and we are more than ready for what’s to come.”

We’ve set out to do something at Insmed that is bigger than any one of us individually, and that ambition has begun to carry some water in the industry. As just one example, we received more than 7,000 resumes for the 120 field sales positions we filled in the U.S. last year in preparation for the launch of brensocatib. This level of interest speaks not only to the strong excitement surrounding the upcoming launch, but also to the notion that we’ve built something truly special. I am perhaps prouder of this than of anything else we’ve achieved.

While we celebrate our successes, we never sit still. If 2024 was a pivotal year, 2025 has the potential to be even bigger, and the following year even bigger than that. We have meticulously laid the groundwork for where we stand now, and we are more than ready for what’s to come.

Thank you to our shareholders who have patiently supported and believed in us throughout our journey. Thank you to our Board of Directors for your invaluable guidance, to the physician and research communities with whom we are proud to collaborate, and to the most passionate and dedicated group of employees I have been lucky enough to work with.

Above all, my deepest thanks to the patients and families we serve. You are our “why” and the true North Star in every decision we make.

Will Lewis
Chair & Chief Executive Officer

2024

Year in review

In an extraordinary year driven by key data milestones and strong commercial performance, we are equally proud of the unique culture we continue to uphold.

Insmed announces positive results from landmark Phase 3 ASPEN study

The results are in: In the largest study ever conducted in patients with bronchiectasis, brensocatib met its primary endpoint and several key secondary endpoints, with a safety profile similar to placebo. The findings herald the potential for a new era in the clinical management of bronchiectasis.

Insmed announces positive topline data from Phase 2 study of TPIP in patients with PH-ILD

A Phase 2 study of treprostinil palmitil inhalation powder (TPIP) in patients with pulmonary hypertension associated with interstitial lung disease (PH-ILD) showed positive safety data and a nominally statistically significant difference in clinical worsening of disease that favored patients treated with TPIP.

ARIKAYCE delivers full-year 2024 revenues of $363.7 million, exceeding the upper end of guidance range

In its seventh year post-launch, ARIKAYCE® (amikacin liposome inhalation suspension) continues to deliver double-digit growth globally.

IND cleared for INS1201

Insmed received clearance from the FDA for the investigational new drug (IND) application for INS1201, an intrathecally delivered gene therapy for patients with Duchenne muscular dystrophy (DMD).

More than 10
new initatives

leveraging AI to transform drug discovery, development, and commercialization

No. 1 Science Top Employer

for fourth year in a row

Science 2024 Top Employer

1st

patient
enrolled

in Phase 2 study of brensocatib for hidradenitis suppurativa (HS)

Enrollment complete

in Phase 2 study of TPIP in patients with pulmonary arterial hypertension (PAH)

Best Places to Work in the UK

by The Sunday Times

The Sunday Times Best Places to Work 2024
2025 Best Places to Work BioSpace

Best Places to Work

by BioSpace

New Drug Application

submitted to FDA for brensocatib in bronchiectasis

Expanded U.S.
field force

deployed to focus on bronchiectasis awareness while growing ARIKAYCE

2

new employee resource groups

Speak Up In BE

awareness campaign helps patients feel seen, understood, and supported

Multiple accolades

from Extel, formerly Institutional Investor

1,200+

employees as of the end of 2024

Great Place To Work Certified July 2024 - July 2025 USA

U.S. Great Place to Work

for fourth year in a row

Encore

Enrollment complete

in ENCORE trial of ARIKAYCE in patients with newly diagnosed or recurrent Mycobacterium avium complex (MAC) lung disease who had not been treated with antibiotics

Reflecting on 
a pivotal year

We challenged our Executive Committee to define 2024 in just one word.

From left to right: Gene Sullivan, Nicole Schaeffer, Drayton Wise, Martina Flammer, Will Lewis, Roger Adsett, Sara Bonstein, Mike Smith

Transformative

“This year has been transformative, first and foremost in the fact that we helped more patients than ever in our history.”

Drayton Wise

Chief Commercial Officer

Impact

“The impact we’ve had on patients, families, and the industry in 2024 is absolutely tremendous. I’m so proud of our team for their hard work, dedication, and execution throughout the year.”

Sara Bonstein

Chief Financial Officer

Revelation

“2024 was a year of revelation. We revealed critically important data, but we also revealed who we are as individuals and as a company. I’m proud of our team for the resilience, problem-solving, and interpersonal skills we demonstrated in navigating the complexities of such a significant data readout.”

Martina Flammer

Chief Medical Officer

Liftoff

“When I think about what we achieved in 2024, it reminds me of a rocket launch—years and years of meticulous work by experts in a number of fields to arrive at a pivotal moment. This was the year we really had liftoff.”

Gene Sullivan

Chief Product Strategy Officer

Gratified

“The things we’ve accomplished in 2024, the things we’ve accomplished in the history of Insmed, are amazing. I’m gratified to be part of this team and the journey that we’re on.”

Mike Smith

Chief Legal Officer

Flying

“I see Insmed in this moment as a company that’s flying. In a year with a range of potential outcomes, we came out at the very top—we didn’t miss. That feels incredibly gratifying to be a part of, and I really do believe next year will be even more remarkable.”

Will Lewis

Chair and Chief Executive Officer

Execution

“We’ve been preparing for the events of 2024 for a long time, and it’s been truly remarkable across the board. As we continue to execute, we continue to learn and to improve our processes, and it makes me feel so encouraged for the opportunity we have in front of us.”

Roger Adsett

Chief Operating Officer

Spectacular

“2024, to me, was nothing short of spectacular. The fact that we were able to execute across all aspects of the business at the same time, grow the organization, have such high employee engagement scores, attract top talent, and have these amazing data and commercial outcomes is just incredible.”

Nicole Schaeffer

Chief People Strategy Officer

Executive Committee

William H. Lewis, J.D., M.B.A.

Chair and Chief Executive Officer

Roger Adsett, M.B.A.

Chief Operating Officer

Sara M. Bonstein, M.B.A.

Chief Financial Officer

Martina Flammer, M.D., M.B.A.

Chief Medical Officer

S. Nicole Schaeffer, M.B.A.

Chief People Strategy Officer

Michael A. Smith, J.D.

Chief Legal Officer

Eugene J. Sullivan, M.D.

Chief Product Strategy Officer

Drayton Wise, M.B.A.

Chief Commercial Officer

Annual Meeting of Shareholders

To be held on Thursday, May 15, 2025, at 9:00 a.m. ET

Shareholders may receive without charge a copy of our Annual Report on Form 10-K for the year ended December 31, 2024, by going to investor.insmed.com or by sending a written request to Mr. Michael A. Smith, Corporate Secretary, Insmed Incorporated, 700 US Highway 202/206, Bridgewater, New Jersey, 08807, (908) 977-9900. In connection with any such request, we will provide a list of exhibits to the Annual Report on Form 10-K for the year ended December 31, 2024, and will provide copies of any such exhibit upon the payment of a reasonable fee.

Board of Directors

William H. Lewis, J.D., M.B.A.

Chair and Chief Executive Officer, Insmed Incorporated
Chair of the Board, NewAmsterdam Pharma

David R. Brennan3

Lead Independent Director, Insmed Incorporated
Former Chief Executive Officer, AstraZeneca PLC

Alfred F. Altomari1,3*

Former Chairman and Chief Executive Officer, Agile Therapeutics, Inc.

Elizabeth McKee Anderson2

Former Worldwide Vice President, Global Strategic Marketing and Market Access, Infectious Diseases and Vaccines, Janssen Pharmaceuticals, Inc.

Clarissa Desjardins, Ph.D.4

Founder and Chief Executive Officer, Congruence Therapeutics

Leo Lee3,4

President, China, Novartis Pharma

David W.J. McGirr1

Former Chief Financial Officer, Cubist Pharmaceuticals, Inc. (acquired by Merck & Co., Inc.)

Carol A. Schafer1,2

Managing Partner, Hyphen Advisors, LLC

Melvin Sharoky, M.D.2,4

Former President and Chief Executive Officer, Somerset Pharmaceuticals, Inc.

Committee Legend
1: Audit; 2: Nomination & Governance; 3: Compensation; 4: Science & Technology
(chairpersons in green)

*Alfred Altomari, who is currently serving as a Class I director, will not stand for re-election at the Annual Meeting of Shareholders.

Global Headquarters

700 US Highway 202/206

Bridgewater, NJ 08807

(908) 977-9900

Trading Symbol

The common stock of Insmed Incorporated is listed on the Nasdaq Global Select Market under the symbol INSM.

Transfer Agent & Registrar

Broadridge Corporate Issuer
Solutions

P.O. Box 1342

Brentwood, NY 11717

shareholder@broadridge.com
(866) 321-8022

Independent Auditors

Ernst & Young LLP
99 Wood Avenue South
Iselin, NJ 08830-9961

Investor Relations

Bryan Dunn
Vice President, Investor Relations

bryan.dunn@insmed.com
(646) 812-4030

Michael V. Morabito, Ph.D.
Director, Investor Relations

michael.morabito@insmed.com
(917) 936-8430

Gianna De Palma
Manager, Investor Relations

gianna.depalma@insmed.com
(848) 360-1281

Various statements in this annual report are “forward-looking statements,” as that term is defined in the Private Securities Litigation Reform Act of 1995. Words herein such as “may,” “will,” “should,” “could,” “would,” “expects,” “plans,” “anticipates,” “believes,” “estimates,” “projects,” “predicts,” “intends,” “potential,” “continues,” and similar expressions (as well as other words or expressions referencing future events, conditions or circumstances) identify forward-looking statements. Forward-looking statements are based on our current expectations and beliefs, and involve known and unknown risks, uncertainties and other factors, which may cause our actual results, performance and achievements and the timing of certain events to differ materially from the results, performance, achievements or timing discussed, projected, anticipated or indicated in any forward-looking statements. For additional information, see Item 1A – Risk Factors of the Form 10-K included in this Annual Report. We undertake no obligation to update or revise publicly any forward-looking statements.

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2024 Annual Report