Scholar Rock (SRRK)


Market Price (10/27/2026): $41.57 | Market Cap: $5.1 BilSector: Health Care | Industry: Biotechnology

Scholar Rock (SRRK)


Market Price (10/27/2026): $41.57
Market Cap: $5.1 Bil
Sector: Health Care
Industry: Biotechnology

Investment Highlights Why It Matters Detailed financial logic regarding cash flow yields vs trend-riding momentum.

0

Megatrend and thematic drivers
Megatrends include Precision Medicine, and Aging Population & Chronic Disease. Themes include Targeted Therapies, Biopharmaceutical R&D, Show more.

Meaningful short interest
Short Interest % of Basic SharesShort Interest % of Basic Shares = (Short Interest Quantity) / (Basic Shares Outstanding). A high fraction of short interest can indicate potential risk of a short squeeze. is 17%

Very low revenue
Rev LTMTotal Revenue or Sales, Last Twelve Months is 0

Not profitable at operating income level
Op Inc LTMOperating Income, Last Twelve Months is -406 Mil

Yield minus risk free rate is negative
ERPEquity Risk Premium (ERP) = Total Yield - Risk Free Rate, Reflects the premium above risk free assets offered by the investment. is -12%

Key risks
SRRK key risks include [1] manufacturing and regulatory delays for its lead asset, Show more.

0 Megatrend and thematic drivers
Megatrends include Precision Medicine, and Aging Population & Chronic Disease. Themes include Targeted Therapies, Biopharmaceutical R&D, Show more.
1 Meaningful short interest
Short Interest % of Basic SharesShort Interest % of Basic Shares = (Short Interest Quantity) / (Basic Shares Outstanding). A high fraction of short interest can indicate potential risk of a short squeeze. is 17%
2 Very low revenue
Rev LTMTotal Revenue or Sales, Last Twelve Months is 0
3 Not profitable at operating income level
Op Inc LTMOperating Income, Last Twelve Months is -406 Mil
4 Yield minus risk free rate is negative
ERPEquity Risk Premium (ERP) = Total Yield - Risk Free Rate, Reflects the premium above risk free assets offered by the investment. is -12%
5 Key risks
SRRK key risks include [1] manufacturing and regulatory delays for its lead asset, Show more.

SRRK in ETFs

Weight = SRRK's share of each fund

VTI0.01%
ITOT0.01%
IWM0.16%
VB0.03%
XBI0.77%
IWO0.30%
IBB0.29%
VTWO0.18%
+9 more covered ETFs

Valuation & Metrics

Price Chart

Why The Stock Moved

Qualitative Assessment

AI Analysis | Feedback

Updated on 10/13/2026

Scholar Rock (SRRK) stock has lost about 25% since 6/30/2026 because of the following key factors:

1. European Regulatory Delays and Facility Issues.

Scholar Rock faced a significant setback in its European commercialization efforts during the period, contributing to investor uncertainty. The company withdrew its Marketing Authorisation Application (MAA) for apitegromab in Europe in August 2026 due to issues with GMP compliance at the Catalent Indiana fill-finish facility. While the MAA was resubmitted on October 8, 2026, with an alternate facility, this introduced a delay, pushing the anticipated European Medicines Agency (EMA) opinion to the first half of 2027, from an earlier expectation of mid-2026.

2. Commercialization Concerns Following FDA Approval and Fracture Risk.

Although the U.S. Food and Drug Administration (FDA) approved ISEMBYLD (apitegromab-mstn) on September 11, 2026, for spinal muscular atrophy (SMA), concerns regarding its commercial uptake emerged. The drug's label included a warning for fracture risk. A September 2026 survey indicated that while physicians generally viewed the drug's efficacy as clinically meaningful, many reported a lower willingness to prescribe it to patients with existing skeletal risk factors. This safety concern, post-approval, could temper initial adoption rates and impact revenue projections.

Show more
Updated on 10/13/2026

Scholar Rock (SRRK) stock has lost about 25% since 6/30/2026 because of the following key factors:

1. European Regulatory Delays and Facility Issues.

Scholar Rock faced a significant setback in its European commercialization efforts during the period, contributing to investor uncertainty. The company withdrew its Marketing Authorisation Application (MAA) for apitegromab in Europe in August 2026 due to issues with GMP compliance at the Catalent Indiana fill-finish facility. While the MAA was resubmitted on October 8, 2026, with an alternate facility, this introduced a delay, pushing the anticipated European Medicines Agency (EMA) opinion to the first half of 2027, from an earlier expectation of mid-2026.

2. Commercialization Concerns Following FDA Approval and Fracture Risk.

Although the U.S. Food and Drug Administration (FDA) approved ISEMBYLD (apitegromab-mstn) on September 11, 2026, for spinal muscular atrophy (SMA), concerns regarding its commercial uptake emerged. The drug's label included a warning for fracture risk. A September 2026 survey indicated that while physicians generally viewed the drug's efficacy as clinically meaningful, many reported a lower willingness to prescribe it to patients with existing skeletal risk factors. This safety concern, post-approval, could temper initial adoption rates and impact revenue projections.

3. Continued Net Losses in Fiscal Q2 2026.

Scholar Rock reported a net loss of $109.9 million, or $0.84 per common share, for fiscal Q2 2026 (ended June 30, 2026), which was in line with analyst consensus estimates. The company continued to report no revenue for the quarter. Despite the impending commercial launch of ISEMBYLD, ongoing substantial losses without corresponding revenue likely weighed on investor sentiment, especially as the company prepared for the significant costs associated with market entry.

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Stock Movement Drivers

Fundamental Drivers

The -24.2% change in SRRK stock from 6/30/2026 to 10/26/2026 was primarily driven by a -2.6% change in the company's Shares Outstanding (Mil).
(LTM values as of)630202610262026Change
Stock Price ($)55.0041.71-24.2%
Change Contribution By: 
Total Revenues ($ Mil)000.0%
P/S Multiple∞∞0.0%
Shares Outstanding (Mil)127131-2.6%
Cumulative Contribution0.0%

LTM = Last Twelve Months as of date shown

Market Drivers

6/30/2026 to 10/26/2026
ReturnCorrelation
SRRK-24.2% 
Market (SPY)2.5%13.4%
Sector (XLV)13.0%15.9%

Fundamental Drivers

The -15.2% change in SRRK stock from 3/31/2026 to 10/26/2026 was primarily driven by a -7.7% change in the company's Shares Outstanding (Mil).
(LTM values as of)331202610262026Change
Stock Price ($)49.1641.71-15.2%
Change Contribution By: 
Total Revenues ($ Mil)000.0%
P/S Multiple∞∞0.0%
Shares Outstanding (Mil)121131-7.7%
Cumulative Contribution0.0%

LTM = Last Twelve Months as of date shown

Market Drivers

3/31/2026 to 10/26/2026
ReturnCorrelation
SRRK-15.2% 
Market (SPY)18.0%13.8%
Sector (XLV)22.8%18.9%

Fundamental Drivers

The 12.0% change in SRRK stock from 9/30/2025 to 10/26/2026 was primarily driven by a 0.0% change in the company's Total Revenues ($ Mil).
(LTM values as of)930202510262026Change
Stock Price ($)37.2441.7112.0%
Change Contribution By: 
Total Revenues ($ Mil)000.0%
P/S Multiple∞∞0.0%
Shares Outstanding (Mil)113131-13.7%
Cumulative Contribution0.0%

LTM = Last Twelve Months as of date shown

Market Drivers

9/30/2025 to 10/26/2026
ReturnCorrelation
SRRK12.0% 
Market (SPY)15.8%21.1%
Sector (XLV)30.5%17.9%

Fundamental Drivers

The 487.5% change in SRRK stock from 9/30/2023 to 10/26/2026 was primarily driven by a 0.0% change in the company's Total Revenues ($ Mil).
(LTM values as of)930202310262026Change
Stock Price ($)7.1041.71487.5%
Change Contribution By: 
Total Revenues ($ Mil)000.0%
P/S Multiple∞∞0.0%
Shares Outstanding (Mil)80131-38.7%
Cumulative Contribution0.0%

LTM = Last Twelve Months as of date shown

Market Drivers

9/30/2023 to 10/26/2026
ReturnCorrelation
SRRK487.5% 
Market (SPY)85.2%5.5%
Sector (XLV)45.8%5.9%

Return vs. Risk

Price Returns Compared

 202120222023202420252026Total [1]
Returns
SRRK Return-49%-64%108%130%2%-6%-15%
Peers Return-20%19%-1%-0%27%-7%11%
S&P 500 Return27%-19%24%23%16%11%103%

Monthly Win Rates [3]
SRRK Win Rate42%42%50%58%42%50% 
Peers Win Rate47%58%48%47%52%46% 
S&P 500 Win Rate75%42%67%75%67%40% 

Max Drawdowns [4]
SRRK Max Drawdown-65%-81%-54%-62%-48%-34% 
Peers Max Drawdown-47%-30%-38%-37%-43%-33% 
S&P 500 Max Drawdown-5%-25%-10%-8%-19%-9% 


[1] Cumulative total returns since the beginning of 2021
[2] Peers: BIIB, IONS, SRPT, PTCT, REGN. See SRRK Returns vs. Peers.
[3] Win Rate = % of calendar months in which monthly returns were positive
[4] Max drawdown represents maximum peak-to-trough decline within a year
[5] 2026 data is for the year up to 10/26/2026 (YTD)

How Low Can It Go

EventSRRKS&P 500
2025 US Tariff Shock
  % Loss-35.6%-18.8%
  % Gain to Breakeven55.3%23.1%
  Time to Breakeven93 days79 days
2023 SVB Regional Banking Crisis
  % Loss-42.1%-6.7%
  % Gain to Breakeven72.7%7.1%
  Time to Breakeven149 days31 days
2022 Inflation Shock & Fed Tightening
  % Loss-81.1%-24.5%
  % Gain to Breakeven429.6%32.4%
  Time to Breakeven859 days427 days
2020 COVID-19 Crash
  % Loss-27.4%-33.7%
  % Gain to Breakeven37.7%50.9%
  Time to Breakeven2 days140 days
Q4 2018 Fed Policy Error / Growth Scare
  % Loss-32.7%-19.2%
  % Gain to Breakeven48.6%23.8%
  Time to Breakeven651 days105 days

Compare to BIIB, IONS, SRPT, PTCT, REGN

In The Past

Scholar Rock's stock fell -35.6% during the 2025 US Tariff Shock. Such a loss loss requires a 55.3% gain to breakeven.

Preserve Wealth

Limiting losses and compounding gains is essential to preserving wealth.

Asset Allocation

Actively managed asset allocation strategies protect wealth. Learn more.

EventSRRKS&P 500
2025 US Tariff Shock
  % Loss-35.6%-18.8%
  % Gain to Breakeven55.3%23.1%
  Time to Breakeven93 days79 days
2023 SVB Regional Banking Crisis
  % Loss-42.1%-6.7%
  % Gain to Breakeven72.7%7.1%
  Time to Breakeven149 days31 days
2022 Inflation Shock & Fed Tightening
  % Loss-81.1%-24.5%
  % Gain to Breakeven429.6%32.4%
  Time to Breakeven859 days427 days
2020 COVID-19 Crash
  % Loss-27.4%-33.7%
  % Gain to Breakeven37.7%50.9%
  Time to Breakeven2 days140 days
Q4 2018 Fed Policy Error / Growth Scare
  % Loss-32.7%-19.2%
  % Gain to Breakeven48.6%23.8%
  Time to Breakeven651 days105 days

Compare to BIIB, IONS, SRPT, PTCT, REGN

In The Past

Scholar Rock's stock fell -35.6% during the 2025 US Tariff Shock. Such a loss loss requires a 55.3% gain to breakeven.

Preserve Wealth

Limiting losses and compounding gains is essential to preserving wealth.

Asset Allocation

Actively managed asset allocation strategies protect wealth. Learn more.

About Scholar Rock (SRRK)

Scholar Rock (SRRK) is a biopharmaceutical company focused on discovering and developing novel medicines for serious diseases where protein growth factor signaling is a key factor. The company aims to address unmet medical needs in areas such as neuromuscular disorders, various cancers, and fibrotic diseases by targeting these specific biological pathways with innovative therapeutic candidates.

The company's lead product candidate, Apitegromab, has completed Phase 3 clinical trials and is being developed for the treatment of Spinal Muscular Atrophy (SMA). Additionally, Scholar Rock is advancing SRK-181 through Phase 1 clinical trials, which targets cancers that have become resistant to existing checkpoint inhibitor therapies, such as anti-PD-1 treatments. The company also maintains a broader pipeline of product candidates and has a strategic collaboration with Gilead Sciences, Inc. to discover and develop specific inhibitors for transforming growth factor beta activation, intended for fibrotic diseases.

AI Analysis | Feedback

1. An early-stage Vertex Pharmaceuticals focused on rare neuromuscular disorders.

2. A developing biotech similar to Biogen, with drugs for neurological diseases, cancer, and fibrosis.

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Scholar Rock's major products are experimental drug candidates in various stages of clinical development:

  • Apitegromab: An inhibitor designed to treat spinal muscular atrophy, having completed Phase 3 clinical trials.
  • SRK-181: A drug candidate in Phase 1 clinical trials targeting cancers resistant to checkpoint inhibitor therapies.
  • Novel product candidates: A pipeline of developing therapies aimed at neuromuscular disorders, cancer, and fibrosis.
  • TGFβ inhibitors: Specific inhibitors of transforming growth factor beta activation being discovered and developed in collaboration with Gilead Sciences for fibrotic diseases.

AI Analysis | Feedback

Scholar Rock (SRRK) is a biopharmaceutical company focused on the discovery and development of medicines. Given its stage of development, with drug candidates primarily in clinical trials, it does not currently have major customers in the traditional sense of selling finished products directly to individuals or end-users.

Instead, its revenue or strategic relationships typically come from collaborations or partnerships with larger pharmaceutical companies that license, co-develop, or acquire its drug candidates. Based on the provided description, the company sells primarily to other companies in this context.

The major customer or strategic partner explicitly mentioned in the background information is:

  • Gilead Sciences, Inc. (GILD)

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David Hallal
Chief Executive Officer & Chairman

David Hallal was appointed Chief Executive Officer in April 2025 and has served as Chairman of Scholar Rock's Board of Directors since 2017. Prior to joining Scholar Rock, he spent over a decade as CEO, COO, and CCO of Alexion, where he was responsible for building and leading the company's 50-country operating platform.

Vikas Sinha
Chief Financial Officer

Vikas Sinha was appointed Chief Financial Officer in April 2025. He previously held the position of Chief Financial Officer at Alexion and ElevateBio.

Akshay Vaishnaw M.D., Ph.D.
President, R&D

Akshay Vaishnaw was appointed to the newly created role of President of Research & Development in April 2025. He has been a member of Scholar Rock's Board of Directors since 2019 and previously served as President of Alnylam.

R. Keith Woods
Chief Operating Officer

R. Keith Woods was appointed to the newly created role of Chief Operating Officer in April 2025, with a focus on evolving the organization into a fully integrated global commercial enterprise. He was formerly the Chief Operating Officer of argenx.

Lisa Wyman
Chief Technical and Quality Officer

Lisa Wyman was appointed Chief Technical and Quality Officer in January 2025. She brings over 20 years of leadership and functional experience in technical and quality operations, including executive team responsibilities at Generate:Biomedicines and Acceleron Pharma. Acceleron Pharma was acquired by Merck in 2021.

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Key Risks for Scholar Rock (SRRK)

  1. Regulatory approval and commercial success of lead product candidates: Scholar Rock's future revenue and profitability are heavily dependent on the successful regulatory approval and subsequent commercialization of its lead product candidate, Apitegromab, which has completed Phase 3 clinical trials for spinal muscular atrophy. There is no guarantee that Apitegromab will receive regulatory approval or achieve significant market acceptance, which would severely impact the company's business and financial prospects. Similarly, the success of other pipeline candidates, such as SRK-181 (in Phase 1 clinical trials), is critical but also uncertain.
  2. Reliance on a limited number of product candidates: The company's business model is significantly concentrated around the successful development and commercialization of a small number of product candidates, primarily Apitegromab and SRK-181. A setback, failure in clinical trials, or adverse regulatory decision for either of these key programs could have a disproportionately negative impact on Scholar Rock's financial condition and ability to continue operations.

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Apitegromab (Spinal Muscular Atrophy)

The addressable market for Apitegromab in the treatment of spinal muscular atrophy (SMA) is substantial. In the U.S. market, Apitegromab's revenue is projected to reach an annual total of $433 million by 2037. Globally, the spinal muscular atrophy treatment market size was estimated at USD 4.40 billion in 2024 and is projected to reach USD 13.09 billion by 2030, growing at a CAGR of 18.0% from 2025 to 2030. Another source projects the global spinal muscular atrophy therapeutics market to rise from USD 6.06 billion in 2026 to USD 13.48 billion by 2031. Scholar Rock plans to launch apitegromab commercially in the US and Europe in 2026 and aims to expand its market reach to 50 countries, targeting 35,000 SMA patients. Analyst estimates indicate peak sales for Apitegromab could reach $1.5 billion.

SRK-181 (Cancers Resistant to Checkpoint Inhibitor Therapies)

SRK-181 targets cancers that are resistant to checkpoint inhibitor therapies, such as anti-PD-1 or anti-PD-L1 antibody therapies. The global market for checkpoint inhibitor refractory cancer drugs was estimated at USD 42,632.94 million in 2025 and is expected to grow to USD 95,548.35 million by 2032, at a Compound Annual Growth Rate (CAGR) of 12.67% from 2025 to 2032. This market encompasses the expanding patient pool that does not respond to, or progresses after, PD-(L)1 and CTLA-4 checkpoint inhibitor therapy.

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Expected Drivers of Future Revenue Growth for Scholar Rock (SRRK)

Over the next 2-3 years, Scholar Rock Holding Corporation's future revenue growth is primarily anticipated to be driven by the following key factors:

  1. U.S. Commercial Launch and Ramp-up of Apitegromab for Spinal Muscular Atrophy (SMA): Scholar Rock is preparing for the U.S. commercial launch of apitegromab in 2026, following a constructive meeting with the FDA and progress in addressing manufacturing facility observations. This therapy aims to be the first muscle-targeted treatment approved for both children and adults with SMA.
  2. European Commercial Launch and Expansion of Apitegromab for SMA: Following the anticipated U.S. launch, a regulatory decision from the European Medicines Agency (EMA) is expected by mid-2026, with a European launch projected for the second half of 2026, starting with Germany. This will open up significant international market access for apitegromab.
  3. Global Market Expansion of Apitegromab: Beyond the initial U.S. and European markets, Scholar Rock plans to establish a 50-country operating platform, targeting a broad patient population of approximately 35,000 SMA patients, with a focus on expansion into regions like Asia-Pacific and Latin America.
  4. Advancement of Apitegromab into Additional Indications and Formulations: The company is actively pursuing the expansion of apitegromab's market potential through further clinical development. This includes the Phase 2 OPAL study evaluating apitegromab in combination with gene therapy for infants and toddlers under two years old with SMA. Additionally, Scholar Rock is exploring the development of a subcutaneous version of apitegromab, which could broaden its administration options and patient reach following the approval of the intravenous formulation.

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Share Issuance

  • Scholar Rock completed an upsized public offering of common stock and pre-funded warrants in October 2024, generating approximately $300 million in gross proceeds to support commercialization, advance clinical programs, and for general corporate purposes.
  • The company reported $60.4 million from warrant exercises in the fourth quarter of 2025, contributing to its cash balance.

Inbound Investments

  • Scholar Rock secured a new debt facility of up to $550 million with Blue Owl Capital, with an additional $100 million expected to be drawn by the end of the first quarter of 2026, to support commercial and pipeline initiatives.
  • The company anticipates monetizing a rare pediatric disease priority review voucher, potentially valued between $150 million and $200 million, upon apitegromab approval.

Capital Expenditures

  • Annual capital expenditures were $5.25 million in 2021, $1.06 million in 2022, $0.06 million in 2023, $0.10 million in 2024, and $0.60 million in 2025.
  • Current and planned capital expenditures are focused on commercial readiness and inventory build-out for apitegromab, advancing clinical programs, and developing its technology platform.
  • The company is investing in a second U.S. fill-finish facility to strengthen supply continuity and support future commercial demand for apitegromab.

Peer Outperformance in Biotechnology

SRRK has outperformed 86% of its 362 Biotechnology peers over 5Y. Biotechnology ranks 10th of 10 industries in Health Care by median 5Y return. The sector’s gains have largely come from elsewhere.
Share of Biotechnology constituents that SRRK has outperformed, by holding period. Peers without a full price history over a given window are excluded from that window.
1Y
81%
of 453 industry peers · 40.5% return
3Y
89%
of 398 industry peers · 303.4% return
5Y
86%
of 362 industry peers · 60.1% return
No Biotechnology peer with a comparable growth profile has beaten SRRK by more than 20pp over 5Y.
Median price return by industry across the Health Care sector, ranked by 5Y. Biotechnology is SRRK's own industry. Use this to see which corners of the sector have carried the returns.
Industry Names 1Y med3Y med5Y med Top 3 by 5Y
Health Care Distributors 6 12.1%53.8%97.6% CAH 472% · MCK 389% · COR 183%
Health Care Services 20 18.7%47.4%15.5% HIMS 255% · RDNT 126% · DGX 84%
Health Care Facilities 24 4.8%32.5%5.4% THC 294% · NHC 270% · ENSG 154%
Managed Health Care 8 26.9%1.8%-2.6% OSCR 83% · HQY 53% · ELV 6%
Health Care Equipment 50 -1.4%12.6%-16.3% UFPT 369% · GKOS 303% · TMDX 162%
Pharmaceuticals 60 -15.0%9.7%-32.2% LQDA 1098% · KNSA 588% · LLY 439%
Health Care Supplies 11 16.2%0.6%-38.7% LNTH 337% · HAE 66% · MMSI 36%
Life Sciences Tools & Services 107 -3.5%3.0%-67.0% NTRA 249% · MEDP 218% · AXGN 166%
Health Care Technology 21 -34.0%-59.9%-81.4% VEEV -1% · DOCS -50%
Biotechnology ← 363 -28.2%-23.4%-81.8% DNTH 1113% · ELVN 1046% · ADMA 720%
Median of constituents with a full price history over each window. Top names are limited to companies above $2B market cap.

Recent Active Movers

Peer Comparisons

Peers to compare with:

Financials

SRRKBIIBIONSSRPTPTCTREGNMedian
NameScholar .Biogen Ionis Ph.Sarepta .PTC Ther.Regenero. 
Mkt Price42.71251.3743.8518.3561.24813.6352.55
Mkt Cap5.637.17.31.95.183.66.4
Rev LTM010,0288741,9741,00915,5351,492
Op Inc LTM-4061,935-594-621174,17427
FCF LTM-2972,490-56875-3333,575-111
FCF 3Y Avg-2411,935-410-302373,439-102
CFO LTM-2972,879-496111-314,68140
CFO 3Y Avg-2412,260-358-1951864,498-5

Growth & Margins

SRRKBIIBIONSSRPTPTCTREGNMedian
NameScholar .Biogen Ionis Ph.Sarepta .PTC Ther.Regenero. 
Rev Chg LTM-0.3%-7.4%-20.4%-42.8%9.3%-7.4%
Rev Chg 3Y Avg-0.2%12.5%31.5%21.0%7.0%12.5%
Rev Chg Q-3.4%-40.7%-34.3%101.5%16.7%3.4%
QoQ Delta Rev Chg LTM-0.9%-17.4%-9.6%22.0%4.1%0.9%
Op Inc Chg LTM-25.7%-21.7%-123.0%-6,578.0%-86.5%6.1%-56.1%
Op Inc Chg 3Y Avg-35.9%-6.0%-24.5%-2,191.0%174.3%-1.7%-15.2%
Op Mgn LTM-19.3%-68.0%-3.2%11.6%26.9%11.6%
Op Mgn 3Y Avg-21.5%-47.0%-0.2%13.1%28.2%13.1%
QoQ Delta Op Mgn LTM--3.9%-34.7%-3.2%19.7%1.1%-3.2%
CFO/Rev LTM-28.7%-56.8%5.6%-3.0%30.1%5.6%
CFO/Rev 3Y Avg-22.8%-41.2%-10.9%8.0%31.2%8.0%
FCF/Rev LTM-24.8%-64.9%3.8%-33.0%23.0%3.8%
FCF/Rev 3Y Avg-19.5%-47.1%-16.5%-6.9%23.9%-6.9%

Valuation

SRRKBIIBIONSSRPTPTCTREGNMedian
NameScholar .Biogen Ionis Ph.Sarepta .PTC Ther.Regenero. 
Mkt Cap5.637.17.31.95.183.66.4
P/S-3.78.31.05.05.45.0
P/Op Inc-13.719.2-12.2-31.143.520.03.5
P/EBIT-14.028.6-15.1-32.643.016.01.0
P/E-13.744.5-12.8-14.2-132.419.3-13.2
P/CFO-18.812.9-14.617.4-166.717.9-0.9
Total Yield-7.5%2.2%-7.9%-7.2%-0.8%5.7%-4.0%
Dividend Yield0.0%0.0%0.0%0.0%0.0%0.5%0.0%
FCF Yield 3Y Avg-10.5%7.2%-4.8%-8.9%0.9%4.9%-1.9%
D/E0.00.20.20.50.10.00.2
Net D/E-0.10.2-0.10.1-0.3-0.1-0.1

Returns

SRRKBIIBIONSSRPTPTCTREGNMedian
NameScholar .Biogen Ionis Ph.Sarepta .PTC Ther.Regenero. 
1M Rtn-12.2%10.4%-1.5%-1.7%-2.3%3.2%-1.6%
3M Rtn-12.7%25.6%-21.6%15.5%-19.2%22.1%1.4%
6M Rtn-7.7%39.1%-39.3%-12.5%-11.5%9.6%-9.6%
12M Rtn43.9%67.7%-38.1%-19.6%-7.8%41.5%16.9%
3Y Rtn313.1%7.2%-0.5%-82.8%230.8%6.0%6.6%
1M Excs Rtn-10.6%12.0%0.1%-0.1%-0.7%4.8%-0.0%
3M Excs Rtn-16.2%19.6%-23.4%16.2%-21.4%14.5%-0.8%
6M Excs Rtn-14.2%32.9%-45.6%-18.9%-17.8%3.3%-16.0%
12M Excs Rtn35.6%54.4%-51.9%-29.6%-21.5%28.8%3.7%
3Y Excs Rtn389.4%-80.2%-84.8%-163.6%81.4%-77.2%-78.7%

FDA Approved Drugs Data

Expand for More
Post-Approval Fwd Returns
FDA
App #
Brand
Name
Generic
Name
Dosage
Form
FDA
Approval
3M
Rtn
6M
Rtn
1Y
Rtn
2Y
Rtn
Total
Rtn
BLA761463  ISEMBYLDapitegromab-mstninjectable9112026-24.7%-24.7%-24.7%-24.7%-24.7%
Collapse to Preview
Post-Approval Fwd Returns
FDA
App #
Brand
Name
Generic
Name
Dosage
Form
FDA
Approval
3M
Rtn
6M
Rtn
1Y
Rtn
2Y
Rtn
Total
Rtn
BLA761463  ISEMBYLDapitegromab-mstninjectable9112026-24.7%-24.7%-24.7%-24.7%-24.7%

Financials

Segment Financials

Revenue by Segment
$ Mil20232022202120202019
Single Segment033191520
Total033191520


Net Income by Segment
$ Mil20252024
Single Segment-378-246
Total-378-246


Assets by Segment
$ Mil2024202320182017
Single Segment47531118162
Total47531118162


Price Behavior

Price Behavior
Market Price$41.71 
Market Cap ($ Bil)5.4 
First Trading Date05/24/2018 
Distance from 52W High-30.5% 
   50 Days200 Days
DMA Price$49.36$48.21
DMA Trenddownindeterminate
Distance from DMA-15.5%-13.5%
 3M1YR
Volatility48.1%55.7%
Downside Capture96.8154.28
Upside Capture-8.9890.35
Correlation (S&P 500)13.0%24.8%
SRRK Betas & Captures as of 9/30/2026

 1M2M3M6M1Y3Y
Beta1.210.730.490.430.950.78
Up Beta2.01-0.470.060.541.411.26
Down Beta0.721.32-0.62-0.041.180.85
Up Capture38%108%54%37%73%183%
Bmk +ve Days6162766132424
Stock +ve Days8203064125368
Down Capture292%108%138%74%73%86%
Bmk -ve Days16263760120328
Stock -ve Days14223462127380

[1] Upside and downside betas calculated using positive and negative benchmark daily returns respectively
Based On 1-Year Data
Annualized
Return
Annualized
Volatility
Sharpe
Ratio
Correlation
with SRRK
SRRK45.8%55.7%0.86-
Sector ETF (XLV)24.4%16.3%1.1521.3%
Equity (SPY)14.9%12.7%0.8124.8%
Gold (GLD)-2.9%28.5%-0.128.2%
Commodities (DBC)48.1%20.6%1.79-12.1%
Real Estate (VNQ)4.9%13.9%0.1016.5%
Bitcoin (BTCUSD)-26.4%43.5%-0.5913.4%

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Based On 5-Year Data
Annualized
Return
Annualized
Volatility
Sharpe
Ratio
Correlation
with SRRK
SRRK9.5%179.3%0.42-
Sector ETF (XLV)8.8%15.3%0.389.3%
Equity (SPY)12.8%17.1%0.5610.1%
Gold (GLD)17.4%18.9%0.74-0.1%
Commodities (DBC)9.4%19.5%0.362.8%
Real Estate (VNQ)1.2%18.9%-0.059.1%
Bitcoin (BTCUSD)5.5%51.7%0.297.5%

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Based On 10-Year Data
Annualized
Return
Annualized
Volatility
Sharpe
Ratio
Correlation
with SRRK
SRRK10.4%154.5%0.46-
Sector ETF (XLV)11.8%16.8%0.5810.0%
Equity (SPY)15.4%17.9%0.7310.7%
Gold (GLD)11.9%16.4%0.590.1%
Commodities (DBC)8.3%18.1%0.374.3%
Real Estate (VNQ)5.3%20.7%0.216.9%
Bitcoin (BTCUSD)62.3%66.2%1.024.4%

Smart multi-asset allocation framework can stack odds in your favor. Learn How

Short Interest

Short Interest: As Of Date9302026
Short Interest: Shares Quantity22.7 Mil
Short Interest: % Change Since 915202617.1%
Average Daily Volume2.4 Mil
Days-to-Cover Short Interest9.3 days
Basic Shares Quantity130.6 Mil
Short % of Basic Shares17.4%

Earnings Returns History

Updated 8/6/2026
Expand for More
 Forward Returns
Earnings Date1D Returns5D Returns21D Returns
5/7/2026-1.4%6.5%-6.0%
3/3/20261.9%1.7%13.1%
1/12/20263.3%6.6%12.9%
11/14/202524.4%26.4%47.4%
8/6/2025-6.4%-12.9%-12.3%
5/14/2025-2.7%0.4%6.1%
2/27/2025-2.9%-2.4%-9.9%
11/12/2024-5.3%-6.3%49.8%
...
SUMMARY STATS   
# Positive171713
# Negative9913
Median Positive5.8%6.6%9.6%
Median Negative-2.5%-6.3%-9.9%
Max Positive24.4%32.5%49.8%
Max Negative-6.4%-18.8%-44.6%
Collapse to Preview
 Forward Returns
Earnings Date1D Returns5D Returns21D Returns
5/7/2026-1.4%6.5%-6.0%
3/3/20261.9%1.7%13.1%
1/12/20263.3%6.6%12.9%
11/14/202524.4%26.4%47.4%
8/6/2025-6.4%-12.9%-12.3%
5/14/2025-2.7%0.4%6.1%
2/27/2025-2.9%-2.4%-9.9%
11/12/2024-5.3%-6.3%49.8%
8/8/2024-1.0%11.6%-2.7%
5/7/2024-2.5%-9.4%-34.7%
3/19/202414.8%21.3%3.8%
1/8/20245.8%1.2%-1.1%
11/7/20231.5%-18.8%30.9%
8/9/202311.3%9.0%1.0%
5/9/20236.0%3.7%-15.8%
3/7/20236.6%2.3%-13.2%
11/14/20221.1%0.2%-0.9%
8/8/20226.7%32.5%4.9%
5/16/202215.0%-0.6%-3.3%
3/7/20223.7%-9.5%-9.9%
11/9/20213.8%24.1%-8.2%
8/10/20213.5%12.1%3.3%
5/13/2021-0.5%-3.9%10.6%
3/9/20218.3%15.8%-44.6%
11/9/2020-0.5%2.8%9.6%
8/7/20202.3%-0.2%5.0%
SUMMARY STATS   
# Positive171713
# Negative9913
Median Positive5.8%6.6%9.6%
Median Negative-2.5%-6.3%-9.9%
Max Positive24.4%32.5%49.8%
Max Negative-6.4%-18.8%-44.6%

SEC Filings

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Report DateFiling DateFiling
06/30/202608/06/202610-Q
03/31/202605/07/202610-Q
12/31/202503/03/202610-K
09/30/202511/14/202510-Q
06/30/202508/06/202510-Q
03/31/202505/14/202510-Q
12/31/202402/27/202510-K
09/30/202411/12/202410-Q
06/30/202408/08/202410-Q
03/31/202405/07/202410-Q
12/31/202303/19/202410-K
09/30/202311/07/202310-Q
06/30/202308/09/202310-Q
03/31/202305/09/202310-Q
12/31/202203/07/202310-K
09/30/202211/14/202210-Q
Collapse to Preview
Report DateFiling DateFiling
06/30/202608/06/202610-Q
03/31/202605/07/202610-Q
12/31/202503/03/202610-K
09/30/202511/14/202510-Q
06/30/202508/06/202510-Q
03/31/202505/14/202510-Q
12/31/202402/27/202510-K
09/30/202411/12/202410-Q
06/30/202408/08/202410-Q
03/31/202405/07/202410-Q
12/31/202303/19/202410-K
09/30/202311/07/202310-Q
06/30/202308/09/202310-Q
03/31/202305/09/202310-Q
12/31/202203/07/202310-K
09/30/202211/14/202210-Q
06/30/202208/08/202210-Q
03/31/202205/16/202210-Q
12/31/202103/07/202210-K
09/30/202111/09/202110-Q
06/30/202108/10/202110-Q
03/31/202105/13/202110-Q
12/31/202003/09/202110-K
09/30/202011/09/202010-Q
06/30/202008/07/202010-Q
03/31/202005/07/202010-Q
12/31/201903/12/202010-K
09/30/201911/12/201910-Q

Insider Activity

Updated 9/25/2026
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#OwnerTitleHoldingActionFiling DatePriceSharesTransacted
Value
Value of
Held Shares
Form
1Flier, Jeffrey S DirectSell706202653.883,053164,4901,500,832Form
2Burow, Kristina DirectSell706202653.743,053164,0646,161,502Form
3Reed, Joshua DirectSell706202653.743,053164,0671,048,892Form
4Peng, Katie DirectSell706202653.885,446293,4051,847,974Form
5Gilman, Michael DirectSell706202653.872,544137,0583,206,154Form
Collapse to Preview
#OwnerTitleHoldingActionFiling DatePriceSharesTransacted
Value
Value of
Held Shares
Form
1Flier, Jeffrey S DirectSell706202653.883,053164,4901,500,832Form
2Burow, Kristina DirectSell706202653.743,053164,0646,161,502Form
3Reed, Joshua DirectSell706202653.743,053164,0671,048,892Form
4Peng, Katie DirectSell706202653.885,446293,4051,847,974Form
5Gilman, Michael DirectSell706202653.872,544137,0583,206,154Form
6Woods, KeithChief Operating OfficerDirectSell420202649.5710,220506,65130,738,917Form
7Vaishnaw, AkshayPresident of R&DDirectSell420202649.5712,246607,08931,258,804Form
8Sinha, VikasChief Financial OfficerDirectSell420202649.5710,410516,07130,729,051Form
9Hallal, DavidChief Executive OfficerDirectSell420202649.5730,6151,517,72381,254,291Form
10Qatanani, MoCHIEF SCIENTIFIC OFFICERDirectSell225202647.078,484399,3514,633,909Form
11Parlavecchio, CarynCHRODirectSell219202646.539,035420,3827,867,314Form
12Qatanani, MoCHIEF SCIENTIFIC OFFICERDirectSell219202646.537,989371,7144,975,214Form
13Marantz, Jing LCHIEF MEDICAL OFFICERDirectSell219202646.534,157193,4185,863,112Form
14Ho, JunlinGENERAL COUNSELDirectSell219202646.539,580445,74011,238,654Form
15Qatanani, MoCHIEF SCIENTIFIC OFFICERDirectSell123202646.7114,898695,9384,001,477Form
16Qatanani, MoCHIEF SCIENTIFIC OFFICERDirectSell121202644.488,406373,8804,472,589Form
17Parlavecchio, CarynCHRODirectSell121202644.486,600293,5536,621,128Form
18Marantz, Jing LCHIEF MEDICAL OFFICERDirectSell121202644.485,798257,8824,255,938Form
19Ho, JunlinGENERAL COUNSELDirectSell121202644.488,016356,5339,542,824Form
20Qatanani, MoCHIEF SCIENTIFIC OFFICERDirectSell116202645.2013,112592,6114,924,748Form
21Sinha, VikasChief Financial OfficerDirectSell115202642.7016,755715,43824,904,562Form
22Woods, KeithChief Operating OfficerDirectSell115202642.7016,746715,05424,904,946Form
23Vaishnaw, AkshayPresident of R&DDirectSell115202642.7020,438872,70325,439,251Form
24Hallal, DavidChief Executive OfficerDirectSell115202642.7057,4502,453,11565,828,242Form
25Peng, KatieDirectSell1218202544.091,00644,3521,450,820Form
26Akkaraju, SrinivasSamsara Opportunity Fund, L.P.Buy1216202539.9229,5991,181,63421,159,862Form
27Qatanani, MoCHIEF SCIENTIFIC OFFICERDirectSell1205202545.21136,4626,169,7884,926,535Form
28Akkaraju, SrinivasSamsara Opportunity Fund, L.P.Buy1007202538.65113,0254,368,80819,343,703Form
29Akkaraju, SrinivasSamsara Opportunity Fund, L.P.Buy1007202537.27387,41414,438,54414,438,544Form
30Qatanani, MoCHIEF SCIENTIFIC OFFICERDirectSell924202530.673,353102,8463,342,242Form
31Peng, KatieDirectSell917202532.531,00632,7261,103,240Form
32Qatanani, MoCHIEF SCIENTIFIC OFFICERDirectSell917202533.523,178106,5273,764,866Form

Investor Activity (13F)

Updated Oct 27, 2026
13F holdings as of Mar 31, 2026 (Q1 2026)

Active managers (13F portfolio over $250M, at least 3 holdings) with a position over $5M that is either over 10% of their portfolio or held in a concentrated book of 50 or fewer total positions. Index/ETF, sovereign, bank, community-bank and charitable/donor-advised filers are excluded.

Active ManagerValue% of PortfolioTotal PositionsQoQFiling
Samsara Biocapital, LLC$339.1 Mil32.9%22Hold13F
Redmile Group, LLC$445.7 Mil29.5%35ADD +73.7%13F
Siren, L.L.C.$532.2 Mil14.8%102Hold13F
Eagle Health Investments LP$24.3 Mil5.1%26ADD +36.0%13F
First Turn Management, LLC$21.9 Mil2.5%33Hold13F
Casdin Capital, LLC$17.2 Mil1.3%40ADD +34.6%13F
Paradigm Biocapital Advisors LP$60.3 Mil1.2%35TRIM -60.0%13F
Active ManagerValue% of PortfolioTotal PositionsQoQFiling
Redmile Group, LLC$445.7 Mil29.5%35ADD +73.7%13F
Eagle Health Investments LP$24.3 Mil5.1%26ADD +36.0%13F
Casdin Capital, LLC$17.2 Mil1.3%40ADD +34.6%13F
Active ManagerValue% of PortfolioTotal PositionsQoQAs OfFiling
Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A.$33.9 Mil3.0%48ExitedDec 31, 202513F
Paradigm Biocapital Advisors LP$60.3 Mil1.2%35TRIM -60.0%Mar 31, 202613F
Active ManagerValue% of PortfolioTotal PositionsQoQFiling
Siren, L.L.C.$532.2 Mil14.8%102Hold13F
Redmile Group, LLC$445.7 Mil29.5%35ADD +73.7%13F
Samsara Biocapital, LLC$339.1 Mil32.9%22Hold13F
Paradigm Biocapital Advisors LP$60.3 Mil1.2%35TRIM -60.0%13F
Eagle Health Investments LP$24.3 Mil5.1%26ADD +36.0%13F
First Turn Management, LLC$21.9 Mil2.5%33Hold13F
Casdin Capital, LLC$17.2 Mil1.3%40ADD +34.6%13F
Core Cache Last Updated: 10/26/2026