Scholar Rock Holding Corporation (SRRK) Ownership
SRRK ownership summary
as of October 17, 2026- Institutions
- 117.6% of shares outstanding
- Insiders
- 0.73% of shares outstanding
- Shares outstanding
- 121.8M
- Float
- 104.1M shares available to trade
- Short interest
- 23.29% 22.7M shares short
- Days to cover
- 10.74 short interest up 17.1% vs prior month
- Institutions 117.56%
- Insiders 0.73%
SRRK top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | FMR Inc | 14.78% | 18.0M | $718.0M | +752,089 (+4.4%) | June 30, 2026 |
| 2 | Siren, L.L.C. | 7.86% | 9.6M | $382.0M | −1.2M (−11.5%) | June 30, 2026 |
| 3 | BlackRock Inc | 7.80% | 9.5M | $378.8M | +2.0M (+27.1%) | June 30, 2026 |
| 4 | Samsara BioCapital, LLC | 5.66% | 6.9M | $275.2M | — | June 30, 2026 |
| 5 | T. Rowe Price Associates, Inc. | 5.58% | 6.8M | $271.1M | +588,219 (+9.5%) | June 30, 2026 |
| 6 | Wellington Management Company LLP | 5.52% | 6.7M | $268.4M | +9,430 (+0.1%) | June 30, 2026 |
| 7 | Orbis Allan Gray Ltd | 4.87% | 5.9M | $236.7M | +1.8M (+42.0%) | June 30, 2026 |
| 8 | Vanguard Capital Management, LLC | 3.92% | 4.8M | $190.2M | +876,533 (+22.5%) | June 30, 2026 |
| 9 | State Street Corp | 3.88% | 4.7M | $188.7M | +697,364 (+17.3%) | June 30, 2026 |
| 10 | Redmile Group, LLC | 3.54% | 4.3M | $172.0M | −4.8M (−52.5%) | June 30, 2026 |
| 11 | NORGES BANK | 2.27% | 2.8M | $110.5M | +690,395 (+33.2%) | June 30, 2026 |
| 12 | Geode Capital Management, LLC | 2.26% | 2.8M | $109.9M | +604,751 (+28.1%) | June 30, 2026 |
| 13 | Massachusetts Financial Services Company | 2.14% | 2.6M | $104.0M | +2.6M (0.0%) | June 30, 2026 |
| 14 | Bellevue Group AG | 2.01% | 2.4M | $97.7M | −1.1M (−31.7%) | June 30, 2026 |
| 15 | Jennison Associates LLC | 1.94% | 2.4M | $94.1M | −981,905 (−29.4%) | June 30, 2026 |
| 16 | Jupiter Topco LLC | 1.84% | 2.2M | $89.5M | +2.2M (0.0%) | June 30, 2026 |
| 17 | HHG PLC | 1.84% | 2.2M | $89.2M | +462,669 (+26.1%) | March 31, 2026 |
| 18 | Hood River Capital Management LLC | 1.83% | 2.2M | $88.8M | +175,109 (+8.5%) | June 30, 2026 |
| 19 | Driehaus Capital Management LLC | 1.81% | 2.2M | $88.0M | +285,385 (+14.9%) | June 30, 2026 |
| 20 | Eventide Asset Management, LLC | 1.73% | 2.1M | $84.2M | −85,975 (−3.9%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 14 holders added 13.8M shares and 5 cut 8.2M.
SRRK top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Fidelity Growth Company Fund | 3.72% | 4.5M | $180.9M | +22,974 (+0.5%) | August 31, 2026 |
| 2 | Vanguard Health Care Inv | 2.85% | 3.5M | $138.3M | −212,494 (−5.8%) | June 30, 2026 |
| 3 | Vanguard MStar Total Stk Mkt Idx Invest | 2.82% | 3.4M | $137.1M | −4,755 (−0.1%) | August 31, 2026 |
| 4 | iShares Russell 2000 ETF | 2.38% | 2.9M | $115.4M | −33,344 (−1.1%) | September 30, 2026 |
| 5 | MFS Mid Cap Growth A | 2.10% | 2.6M | $102.0M | +378,653 (+17.4%) | August 31, 2026 |
| 6 | T. Rowe Price New Horizons | 1.72% | 2.1M | $83.6M | −85,568 (−3.9%) | August 31, 2026 |
| 7 | State Street® SPDR® S&P® Biotech ETF | 1.51% | 1.8M | $73.2M | −34,950 (−1.9%) | September 30, 2026 |
| 8 | Polar Capital Biotech S Inc | 1.46% | 1.8M | $70.9M | — | August 31, 2026 |
| 9 | Fidelity Select Biotechnology | 1.36% | 1.7M | $65.9M | — | August 31, 2026 |
| 10 | Eventide Gilead N | 1.20% | 1.5M | $58.3M | — | June 30, 2026 |
| 11 | Fidelity Growth Company K6 | 1.05% | 1.3M | $51.2M | +6,000 (+0.5%) | August 31, 2026 |
| 12 | Fidelity Small Cap Index | 1.00% | 1.2M | $48.8M | +9,828 (+0.8%) | July 31, 2026 |
| 13 | Orbis Global Equity Investor | 0.98% | 1.2M | $47.8M | +375,684 (+45.7%) | June 30, 2026 |
| 14 | American Funds SMALLCAP World A | 0.93% | 1.1M | $45.0M | — | June 30, 2026 |
| 15 | Fidelity Series Growth Company | 0.91% | 1.1M | $44.4M | +13,200 (+1.2%) | August 31, 2026 |
| 16 | T. Rowe Price Integrated US Sm Gr Eq | 0.91% | 1.1M | $44.2M | — | August 31, 2026 |
| 17 | Hood River Small-Cap Growth Instl | 0.88% | 1.1M | $42.7M | — | June 30, 2026 |
| 18 | iShares Russell 2000 Growth ETF | 0.81% | 985K | $39.3M | −1,246 (−0.1%) | September 30, 2026 |
| 19 | Fidelity OTC | 0.77% | 943K | $37.6M | — | August 31, 2026 |
| 20 | iShares Biotechnology ETF | 0.64% | 775K | $30.9M | −5,872 (−0.8%) | September 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
SRRK insider transactions
latest 20| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-16 | David Hallal | Sell | $49.57 | 30,615 | $1.5M |
| 2026-04-16 | Keith Woods | Sell | $49.57 | 10,220 | $506,605 |
| 2026-04-16 | Vikas Sinha | Sell | $49.57 | 10,410 | $516,024 |
| 2026-04-16 | Akshay Vaishnaw | Sell | $49.57 | 12,246 | $607,034 |
| 2026-02-23 | Mo Qatanani | Sell | $47.07 | 8,484 | $399,342 |
| 2026-02-17 | Mo Qatanani | Sell | $46.53 | 7,989 | $371,728 |
| 2026-02-17 | Junlin Ho | Sell | $46.53 | 9,580 | $445,757 |
| 2026-02-17 | Jing L Marantz | Sell | $46.53 | 4,157 | $193,425 |
| 2026-02-17 | Caryn Parlavecchio | Sell | $46.53 | 9,035 | $420,399 |
| 2026-01-22 | Mo Qatanani | Sell | $46.71 | 14,898 | $695,886 |
| 2026-01-16 | Caryn Parlavecchio | Sell | $44.48 | 6,600 | $293,568 |
| 2026-01-16 | Jing L Marantz | Sell | $44.48 | 5,798 | $257,895 |
| 2026-01-16 | Junlin Ho | Sell | $44.48 | 8,016 | $356,552 |
| 2026-01-16 | Mo Qatanani | Sell | $44.48 | 8,406 | $373,899 |
| 2026-01-14 | Mo Qatanani | Sell | $45.20 | 13,112 | $592,662 |
| 2026-01-13 | Vikas Sinha | Sell | $42.70 | 16,755 | $715,438 |
| 2026-01-13 | Keith Woods | Sell | $42.70 | 16,746 | $715,054 |
| 2026-01-13 | Akshay Vaishnaw | Sell | $42.70 | 20,438 | $872,703 |
| 2026-01-13 | David Hallal | Sell | $42.70 | 57,450 | $2.5M |
| 2025-12-16 | Katie Peng | Sell | $44.09 | 1,006 | $44,355 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
SRRK shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns SRRK
Institutional investors own 117.6% of Scholar Rock's shares and insiders 0.73%. The largest holder is FMR Inc with 14.78% of the shares (18.0M), as of June 30, 2026. Among the top 20 institutions, 14 added shares and 5 reduced their stake in the latest filings. Short interest is 23.29% of the float, or 10.74 days of average trading volume. The share count rose 5,635.1% since 2016.
Related: SRRK analyst forecast, SRRK key metrics. See the SRRK stock overview for the latest quote and news.
SRRK ownership FAQ
Who owns the most Scholar Rock stock?
The largest shareholders of Scholar Rock are FMR Inc (14.78%), Siren, L.L.C. (7.86%), BlackRock Inc (7.80%), Samsara BioCapital, LLC (5.66%), T. Rowe Price Associates, Inc. (5.58%).
What percentage of Scholar Rock is owned by institutions?
Institutions hold 117.6% of Scholar Rock's shares outstanding; insiders hold 0.73%.
Which funds own Scholar Rock?
The largest fund holders of Scholar Rock are Fidelity Growth Company Fund (3.72%), Vanguard Health Care Inv (2.85%), Vanguard MStar Total Stk Mkt Idx Invest (2.82%), iShares Russell 2000 ETF (2.38%), MFS Mid Cap Growth A (2.10%).
What is Scholar Rock's short interest?
22.7M shares of Scholar Rock were sold short, 23.29% of the float; at the average daily volume it would take 10.74 days to cover.
Are insiders buying or selling Scholar Rock?
Of the latest 20 reported insider transactions in Scholar Rock (since December 16, 2025), 0 were purchases and 20 were sales.
How many shares of Scholar Rock are outstanding?
Scholar Rock has 121.8M shares outstanding, of which 104.1M are in the public float.