Core Insights - The U.S. FDA has approved Insmed Incorporated's Brinsupri (brensocatib) as the first and only treatment for non-cystic fibrosis bronchiectasis (NCFB) in adults and children aged 12 and older [1][5] - Approximately 500,000 individuals in the U.S. are diagnosed with NCFB, highlighting a significant patient population for this treatment [2] - Clinical trials demonstrated that Brinsupri significantly reduced the annual rate of exacerbations by 21.1% and 19.4% for the 10 mg and 25 mg doses, respectively, compared to placebo [3] - The treatment also met secondary endpoints, including prolonging the time to first exacerbation and increasing the proportion of patients remaining exacerbation-free [4] - The safety profile of Brinsupri was generally consistent across studies, with some increased incidence of gingival and periodontal adverse reactions noted in the WILLOW study [5] - Insmed plans to file for approval in Japan in 2025, with commercial launches anticipated in 2026 pending regulatory approvals [5] - Following the FDA approval, Insmed's stock price increased by 6.20% to $119.89 [6]

Summary of Insmed's Conference Call on FDA Approval of Brensocatib Company and Industry - **Company**: Insmed (INSM) - **Industry**: Pharmaceutical, specifically focusing on treatments for respiratory diseases Key Points and Arguments 1. **FDA Approval Announcement**: Insmed announced the FDA approval of brensocatib for patients with non-cystic fibrosis bronchiectasis (NCFB), marking a significant milestone as it is the first approved treatment for this condition in over 200 years [2][4][5] 2. **Product Details**: Brensocatib will be marketed under the brand name Brinsupri, available in 10 mg and 25 mg tablet forms, with an annual list price of $88,000 [6][7][8] 3. **Sales Strategy**: Insmed's sales force has built relationships with approximately 27,000 pulmonologists to facilitate a smooth launch. The company expects a gross-to-net discount of 25% to 35% at launch [6][7][8][51] 4. **Market Potential**: The company anticipates global peak sales of over $5 billion for brensocatib in the NCFB indication alone, with the potential to serve an additional 500,000 patients in the U.S. [8][14] 5. **Patient Demographics**: Insmed estimates that about 250,000 patients diagnosed with NCFB will be eligible for treatment at launch, with many more expected to be diagnosed as awareness increases [70][72] 6. **Clinical Data**: The approval label includes significant benefits on FEV1, a key measure of lung function, and reflects the safety profile observed during clinical trials [11][12] 7. **Payer Engagement**: Insmed is negotiating with payers to ensure that the attestation process for prior exacerbations is streamlined, aiming to avoid burdensome documentation requirements [33][79] 8. **Future Studies**: Insmed is exploring the potential of brensocatib in other neutrophil-mediated diseases, with ongoing studies expected to yield results in the coming year [75][76] Other Important but Possibly Overlooked Content 1. **Historical Context**: The approval of brensocatib is significant as it is the first treatment for bronchiectasis, a condition recognized since 1819, highlighting the long-standing need for effective therapies [5][14] 2. **Shelf Life and Inventory**: Brensocatib has a 24-month shelf life, allowing Insmed to utilize existing inventory effectively [12] 3. **Seasonality Factors**: There are seasonal considerations for patient flow, particularly related to viral infections that can trigger exacerbations [46] 4. **Sales Metrics**: Insmed plans to provide quarterly updates on sales results, new patient starts, and cumulative prescribers until annual sales guidance is issued [8][60] 5. **Physician Engagement**: Over 90% of surveyed physicians indicated a willingness to prescribe brensocatib, suggesting strong initial uptake [64][66] This summary encapsulates the critical aspects of Insmed's conference call regarding the FDA approval of brensocatib, emphasizing the company's strategic positioning, market potential, and future directions in research and patient engagement.

Core Insights - The FDA has approved BRINSUPRI (brensocatib) as the first treatment for non-cystic fibrosis bronchiectasis (NCFB), providing a new option for approximately 500,000 diagnosed patients in the U.S. [1][2][3] - BRINSUPRI is a first-in-class DPP1 inhibitor that targets neutrophilic inflammation, addressing a root cause of bronchiectasis exacerbations [1][5][9] - The approval is based on positive results from Phase 3 ASPEN and Phase 2 WILLOW studies, showing significant reductions in exacerbation rates and improvements in lung function [3][11][12] Company Overview - Insmed Incorporated is a global biopharmaceutical company focused on developing first- and best-in-class therapies for serious diseases [1][25] - The company emphasizes a patient-first approach and aims to transform the lives of patients with chronic conditions [1][25] - Insmed is headquartered in Bridgewater, New Jersey, and has a diverse portfolio of approved and investigational medicines [25][26] Product Details - BRINSUPRI is available in 10 mg and 25 mg doses, taken orally once daily, and is now accessible through a specialty pharmacy network [1][6][9] - The drug is designed to inhibit neutrophil serine proteases, which are key drivers of chronic airway inflammation in NCFB [5][9] - The safety profile of BRINSUPRI was evaluated in clinical trials, with common adverse reactions including upper respiratory tract infections and headaches [3][17] Clinical Study Insights - The ASPEN study involved over 1,680 adult patients and demonstrated a 21.1% reduction in exacerbation rates for the 10 mg dose and a 19.4% reduction for the 25 mg dose compared to placebo [3][11] - The WILLOW study included 256 adult patients and focused on the time to first pulmonary exacerbation, further supporting the efficacy of BRINSUPRI [12] - Both studies confirmed the safety and tolerability of BRINSUPRI, with a generally similar safety profile across different patient populations [3][17] Market Potential - The approval of BRINSUPRI is expected to significantly impact the management of NCFB, a condition that affects hundreds of thousands of patients in the U.S. and millions globally [2][3][13] - Insmed plans to file for regulatory approval in Europe and Japan, with commercial launches anticipated in 2026 [6][25] - The introduction of BRINSUPRI may establish a new standard of care for patients suffering from this chronic lung condition [2][3]

Core Insights - Insmed's total revenue for the quarter ending June 2025 was $107.42 million, reflecting an 18.9% increase year-over-year [4] - The analysis of international revenue is crucial for understanding Insmed's financial strength and growth potential [1][2] International Revenue Performance - Japan contributed $30.67 million, accounting for 28.6% of total revenue, surpassing analyst expectations of $26 million with a surprise increase of 17.97% [5] - Revenue from Europe and the rest of the world was $8.06 million, representing 7.5% of total revenue, also exceeding expectations by 22.74% [6] Future Revenue Projections - Analysts forecast total revenue of $115.68 million for the current fiscal quarter, a 23.8% increase from the same quarter last year, with Japan expected to contribute 23.9% and Europe 6% [7] - For the entire year, total revenue is projected to reach $466.02 million, an improvement of 28.1% from the previous year, with Japan contributing 22.8% and Europe 5.7% [8] Conclusion on International Operations - Insmed's reliance on international markets presents both opportunities and challenges, making the tracking of international revenue trends essential for future projections [9]

Core Insights - Insmed reported revenue of $107.42 million for the quarter ended June 2025, reflecting an 18.9% increase year-over-year and a surprise of +3.87% over the Zacks Consensus Estimate of $103.42 million [1] - The company's EPS was -$1.70, an improvement from -$1.94 in the same quarter last year, but fell short of the consensus estimate of -$1.30, resulting in a surprise of -30.77% [1] Revenue Breakdown - U.S. revenue was $68.68 million, which was below the average estimate of $71.75 million from four analysts, representing a year-over-year increase of +7.7% [4] - Revenue from Europe and the rest of the world was $8.06 million, exceeding the average estimate of $6.57 million from three analysts, with a year-over-year increase of +48.3% [4] - Revenue from Japan reached $30.67 million, surpassing the average estimate of $26 million from three analysts, marking a year-over-year increase of +45.3% [4] Stock Performance - Insmed shares have returned +15.3% over the past month, outperforming the Zacks S&P 500 composite, which saw a +1.2% change [3] - The stock currently holds a Zacks Rank 3 (Hold), indicating expected performance in line with the broader market in the near term [3]

Company Performance - Insmed reported a quarterly loss of $1.7 per share, which was worse than the Zacks Consensus Estimate of a loss of $1.3, and an improvement from a loss of $1.94 per share a year ago [1][2] - The earnings surprise for this quarter was -30.77%, and the company has not surpassed consensus EPS estimates over the last four quarters [2] - Insmed's revenues for the quarter ended June 2025 were $107.42 million, exceeding the Zacks Consensus Estimate by 3.87%, and up from $90.34 million year-over-year [3] Stock Performance - Insmed shares have increased approximately 61.2% since the beginning of the year, significantly outperforming the S&P 500's gain of 7.9% [4] - The current Zacks Rank for Insmed is 3 (Hold), indicating that the shares are expected to perform in line with the market in the near future [7] Future Outlook - The consensus EPS estimate for the upcoming quarter is -$1.30 on revenues of $115.44 million, and for the current fiscal year, it is -$5.29 on revenues of $464.32 million [8] - The outlook for the Medical - Biomedical and Genetics industry, where Insmed operates, is currently in the top 41% of over 250 Zacks industries, suggesting a favorable environment for stock performance [9]

Financial Data and Key Metrics Changes - Insmed reported strong commercial performance with double-digit year-over-year revenue growth globally, driven by the highest quarterly revenue ever achieved in the U.S. [33] - The cash balance at the end of the quarter was approximately $1.9 billion, reflecting a recent equity offering that generated about $823 million in net proceeds [34][35] - The underlying cash burn for the quarter remained consistent with previous levels, despite increased investments in launch preparations [35] Business Line Data and Key Metrics Changes - ARIKAYCE demonstrated consistent year-over-year growth in its seventh year of launch, with U.S. sales team conducting disease state education on bronchiectasis [7][8] - Brensocatib is expected to launch in the U.S. soon, with anticipated launches in Europe, the UK, and Japan in 2026 [9][10] - TPIP produced positive results in two Phase 2 studies, with plans to enter Phase 3 for PH ILD in 2025 and PAH in early 2026 [10] Market Data and Key Metrics Changes - In Japan, ARIKAYCE saw a 45% growth due to new targeting strategies, while Europe experienced a 48% growth driven by demand in Germany, Switzerland, and Austria [33][34] - The U.S. market for bronchiectasis is estimated at around 500,000 patients, with approximately half having had two or more exacerbations in the last twelve months [44][85] Company Strategy and Development Direction - Insmed aims to expand its impact on patients through a steady cadence of meaningful commercial and clinical events over the next twelve months [6][31] - The company is focused on bringing first and best-in-class therapies to patients facing serious diseases, with a strong emphasis on patient access and support [16][20] - Insmed's early-stage portfolio includes over 30 preclinical programs, with a goal of producing one to two new INDs per year [11][15] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in the upcoming launch of brensocatib, highlighting extensive preparations and positive feedback from payers [21][56] - The company anticipates up to 10 additional commercial, clinical, development, and regulatory milestones over the next twelve months [38] - Insmed's culture of collaboration and support is seen as a key factor in its ability to execute on future opportunities [31] Other Important Information - Insmed was recently certified as a great place to work for the fifth consecutive year, reflecting employee satisfaction and commitment [31] - The company is preparing for a potential Phase 3 start in early 2026 for PAH, following a meeting with regulators [30] Q&A Session Summary Question: What are the practical steps being taken to capture patients for brensocatib? - Management highlighted the importance of disease state awareness campaigns and building relationships with physicians to identify suitable patients [41][44] Question: Can you elaborate on the payer feedback regarding brensocatib? - Positive alignment with payers was noted, focusing on making the prior authorization process as smooth as possible for physicians [54][56] Question: What is the expected timeline for the interim futility analysis in hidradenitis suppurativa? - The analysis will be based on the first 100 patients, looking for a signal of efficacy rather than a p-value [91] Question: How confident is the company in achieving a successful launch for brensocatib? - Management expressed cautious optimism, emphasizing extensive preparations and the importance of patient experience in driving success [67][70]

Financial Data and Key Metrics Changes - Insmed reported strong commercial performance with double-digit year-over-year revenue growth globally, driven by the highest quarterly revenue ever achieved in the U.S. [32] - The company remains on track to achieve its 2025 full-year ARIKAYCE net revenue guidance of $400 to $425 million [33] - As of the end of the quarter, Insmed had approximately $1.9 billion in cash, cash equivalents, and marketable securities, indicating a strong financial position [33][34] Business Line Data and Key Metrics Changes - ARIKAYCE continues to show consistent year-over-year growth in its seventh year of launch, with significant contributions from the U.S., Europe, and Japan [6][32] - Brensocatib is anticipated to launch in the U.S. soon, with launches in Europe, the UK, and Japan expected in 2026 [9] - TPIP has produced positive results in two Phase 2 studies, with plans to enter Phase 3 for PH ILD in 2025 and for PAH in early 2026 [10] Market Data and Key Metrics Changes - In Japan, ARIKAYCE saw a 45% growth this quarter due to new targeting strategies [32] - Europe experienced a 48% growth driven primarily by strong demand in Germany, Switzerland, and Austria [33] - The U.S. sales team is conducting disease state education on bronchiectasis, which is expected to enhance market penetration [7] Company Strategy and Development Direction - Insmed aims to address over two million patients with serious diseases across multiple products and indications in the coming years [6] - The company is focused on advancing first and best-in-class therapies for patients facing serious diseases, with a strong emphasis on commercial readiness and patient access [15][30] - Insmed's culture supports collaboration and innovation across its research sites, which is expected to accelerate the development process [13] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in the upcoming twelve months, anticipating a steady cadence of meaningful events that could significantly expand the company's impact on patients [5] - The company is prepared for the launch of brensocatib, with extensive preparations in place to ensure a successful rollout [22] - Management remains cautiously optimistic about the potential for brensocatib and TPIP, highlighting the importance of patient experience in driving future performance [69] Other Important Information - Insmed has been certified as a great place to work for the fifth consecutive year, reflecting employee satisfaction and commitment [30] - The company has over 30 preclinical programs in active development across its early-stage portfolio [11] Q&A Session Summary Question: What are the practical steps being taken to capture patients for brensocatib? - The company has initiated a disease state awareness campaign and has built relationships with physicians to identify suitable patients for treatment [40][44] Question: What is the feedback from payers regarding the approach to patients? - Payer feedback has been positive, with alignment on the criteria for patient eligibility, focusing on those with a bronchiectasis diagnosis and two or more exacerbations [54][56] Question: How does the company view the potential for TPIP in relation to competitor trials? - The company is optimistic about TPIP's potential and is prepared to advance it into Phase 3 studies quickly if competitor trials show positive results [62][64] Question: Can you elaborate on the interim futility analysis for HS? - The analysis will look for a signal of efficacy rather than a p-value, and an expert panel will determine whether to continue the trial based on the first 100 patients [90][92]

Financial Performance & Guidance - Worldwide ARIKAYCE revenue reached $107.4 million, an increase of 18.9%[43] - U.S. ARIKAYCE revenue was $68.7 million, up 7.7%[43] - Japan ARIKAYCE revenue was $30.7 million, a significant increase of 45.3%[43] - Europe & Rest of World ARIKAYCE revenue grew by 48.3% to $8.1 million[43] - The company is on track to achieve its 2025 ARIKAYCE revenue guidance of $405 to $425 million[44] - The company holds a strong capital position with approximately $1.9 billion in cash, cash equivalents, and marketable securities as of June 30, 2025[46] Clinical Development & Pipeline - All three late-stage assets (ARIKAYCE, brensocatib, and TPIP) have demonstrated clinical success[15] - Brensocatib is expected to launch in the U.S. in Q3 2025 for NCFB, pending regulatory approval[16] - Phase 2 BiRCh data for brensocatib in CRSsNP is expected by the end of 2025[16] - A futility analysis for the Phase 2 CEDAR trial of brensocatib in HS is anticipated in Q1 2026[16] - The Phase 2b study of TPIP in PAH exceeded expectations, showing a 35% reduction in PVR and a 35.5m improvement in 6MWD[39] - Phase 3 trial in PH-ILD is expected to initiate in 2H:25 and Phase 3 trial in PAH is expected to initiate in early 2026[16]

Exhibit 99.1 Insmed Reports Second-Quarter 2025 Financial Results and Provides Business Update —ARIKAYCE® (amikacin liposome inhalation suspension) Total Revenue of $107.4 Million for the Second Quarter of 2025, Reflecting 19% Growth Over the Second Quarter of 2024— —NDA for Brensocatib in Patients with Bronchiectasis Remains on Track, with a PDUFA Target Action Date of August 12, 2025— —TPIP Program Advancing with Phase 3 Studies Planned to Begin for PH-ILD in the Second Half of 2025 and for PAH in Early 2 ...