SRRK · Scholar Rock Holding Corp · Holdings
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Holder Concentration
Across 310 13F filersWho Holds SRRK
Last 8 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 306 filers, like-for-like change +2.4%; actively managed books -2.8%; index-like books +27.8%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 40.5% | 154 | -3.9% |
| Exempt adviser | 0.7% | 5 | -13.2% |
| Adviser | 2.5% | 10 | +33.2% |
| Bank | 5.8% | 17 | +8.9% |
| Insurer | 0.0% | 3 | +171.4% |
| Broker-dealer | 0.0% | 2 | +62.9% |
| Benefit plan | 0.1% | 5 | +23.1% |
| Non-US | 5.3% | 9 | -19.1% |
| Holding company | 26.8% | 7 | +12.5% |
| Unknown | 18.2% | 94 | +4.0% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 22.6% | 34 | +27.8% |
| Systematic-like | 2.8% | 26 | -7.3% |
| Concentrated | 9.3% | 40 | -29.8% |
| Diversified active | 65.3% | 206 | +3.1% |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 51.3% | 149 | +9.2% |
| Medium turnover | 35.1% | 81 | -2.7% |
| High turnover | 4.8% | 45 | -29.5% |
| Unknown | 8.8% | 31 | +16.4% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 7.4% | 50 | +6.6% |
| Medium horizon | 17.0% | 51 | -7.2% |
| Long horizon | 58.9% | 178 | +3.2% |
| Unknown | 16.7% | 27 | +9.1% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 1.4% | 60 | -39.5% |
| $1B to $10B | 22.0% | 86 | -22.4% |
| $10B to $100B | 16.9% | 92 | +15.5% |
| $100B or more | 59.8% | 68 | +14.3% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 0.3% | 58 | +32.5% |
| Pooled investment vehicles | 16.7% | 39 | -25.1% |
| Registered funds and BDCs | 18.5% | 22 | +19.6% |
| Pension and profit sharing plans | 0.0% | 2 | +573.8% |
| Insurance companies | 0.7% | 3 | +23.8% |
| Governments and sovereign funds | 0.6% | 6 | +16.0% |
| Other investment advisers | 0.0% | 3 | +5.6% |
| Other | 0.0% | 1 | 0.0% |
| Diversified | 3.7% | 19 | +20.7% |
| Corporations | 0.0% | 0 | — |
| Unknown | 59.5% | 153 | +7.4% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 14.7% | 47 | -27.5% |
| Private equity funds | 1.8% | 12 | +7.5% |
| Venture capital funds | 6.6% | 4 | +1.3% |
| Real estate funds | 0.0% | 3 | +278.9% |
| Liquidity funds | 0.0% | 1 | new |
| Securitized asset funds | 0.1% | 1 | +8.0% |
| Other private funds | 7.6% | 14 | -1.7% |
| Mixed private funds | 0.6% | 4 | +69.6% |
| Private funds, type not stated | 1.9% | 3 | +4981.0% |
| No private funds | 8.0% | 70 | +24.5% |
| Unknown | 58.7% | 147 | +7.7% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 86.4% | 247 | +2.6% |
| Outside the US | 13.6% | 59 | +1.0% |
The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 3 holders with no observed 2026-03-31 13F and 3 holders with no observed 2026-06-30 13F. Compared across CIK changes: JANUS HENDERSON GROUP PLC continues as Jupiter Topco LLC.
Conviction and Crowding
306 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net buyers of $184,877 (1 buying, 0 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 45.2% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shared Holders
Companies SRRK's active holders also own, quarter ended Jun 30, 2026| # | Company | Shared holders |
|---|---|---|
| 1 | XENE Xenon Pharmaceuticals Inc. | 15 |
| 2 | PRAX Praxis Precision Medicines, Inc. | 14 |
| 3 | CYTK Cytokinetics Inc | 17 |
| 4 | SION Sionna Therapeutics, Inc. | 9 |
| 5 | ELVN Enliven Therapeutics, Inc. | 12 |
| 6 | PTGX Protagonist Therapeutics, Inc | 11 |
| 7 | SYRE Spyre Therapeutics, Inc. | 12 |
| 8 | MLYS Mineralys Therapeutics, Inc. | 11 |
| 9 | BBIO BridgeBio Pharma, Inc. | 13 |
| 10 | VERA Vera Therapeutics, Inc. | 10 |
Shareholder Targets
13F filers that own its peers but not SRRK, quarter ended Jun 30, 2026Found through its holder-overlap peers: XENE, PRAX, CYTK, SION, ELVN, PTGX, SYRE, MLYS, BBIO, VERA, NAMS, IRON, KYMR, INSM, RYTM, CLDX, SEPN, CRNX, ERAS, TRVI. 855 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | BAKER BROS. ADVISORS LP Registered adviser, Concentrated | $3,401,234,918 11 held | KYMR, INSM, RYTM |
| 2 | T. Rowe Price Investment Management, Inc. Adviser, Diversified active | $3,148,399,977 8 held | CYTK, KYMR, ERAS |
| 3 | RA CAPITAL MANAGEMENT, L.P. Registered adviser, Concentrated | $2,127,771,981 6 held | RYTM, SION, NAMS |
| 4 | RTW INVESTMENTS, LP Registered adviser, Diversified active | $2,116,552,468 7 held | PTGX, INSM, SYRE |
| 5 | Avoro Capital Advisors LLC Registered adviser, Concentrated | $1,922,230,680 5 held | KYMR, CYTK, XENE |
| 6 | FARALLON CAPITAL MANAGEMENT LLC Registered adviser, Diversified active | $1,914,764,276 3 held | BBIO, PTGX, CRNX |
| 7 | Frazier Life Sciences Management, L.P. Registered adviser, Concentrated | $1,579,850,493 6 held | NAMS, ERAS, TRVI |
| 8 | PERCEPTIVE ADVISORS LLC Registered adviser, Diversified active | $1,512,438,616 5 held | PRAX, SYRE, RYTM |
| 9 | Capital International Investors Adviser, Diversified active | $1,275,354,046 5 held | INSM, XENE, CYTK |
| 10 | VIKING GLOBAL INVESTORS LP Registered adviser, Diversified active | $1,052,840,338 4 held | BBIO, NAMS, SION |
Fund Ownership of SRRK by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 13.56% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 2.70% | 3,282,945 |
| Index ETFs | 10.86% | 13,230,608 |
| Active ETFs | 0.25% | 308,891 |
| Active funds | 27.17% | 33,084,501 |
| Unclassified | 0.12% | 149,988 |
| All registered funds | 41.10% | 50,056,933 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mega FMR LLC Holding company | $989,738,255 | 12.92% | 17,995,241 | Shares | 2026-08-13 | |
| Mid Siren, L.L.C. | $526,625,715 | 6.87% | 9,575,013 | Shares | 2026-08-13 | |
| Mega BlackRock, Inc. Holding company | $522,174,620 | 6.82% | 9,494,084 | Shares | 2026-08-07 | |
| Mid SAMSARA BIOCAPITAL, LLC Registered adviser | $379,370,860 | 4.95% | 6,897,652 | Shares | 2026-08-14 | |
| Mega PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser | $373,716,035 | 4.88% | 6,794,837 | Shares | 2026-08-14 | |
| Mega WELLINGTON MANAGEMENT GROUP LLP Holding company | $369,989,675 | 4.83% | 6,727,085 | Shares | 2026-08-14 | |
| Large Orbis Allan Gray Ltd | $326,344,315 | 4.26% | 5,933,533 | Shares | 2026-08-14 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC Registered adviser | $262,233,400 | 3.42% | 4,767,880 | Shares | 2026-08-13 | |
| Mega STATE STREET CORP Bank | $260,077,455 | 3.40% | 4,728,681 | Shares | 2026-09-22 | |
| Mid Redmile Group, LLC Registered adviser | $237,110,060 | 3.10% | 4,311,092 | Shares | 2026-08-14 | |
| Mega NORGES BANK Non-US | $152,345,050 | 1.99% | 2,769,910 | Shares | 2026-08-12 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC Registered adviser | $151,458,285 | 1.98% | 2,753,787 | Shares | 2026-08-12 | |
| Mega MASSACHUSETTS FINANCIAL SERVICES CO /MA/ Registered adviser | $143,404,140 | 1.87% | 2,607,348 | Shares | 2026-08-03 | |
| Mid Bellevue Group AG Non-US | $134,725,085 | 1.76% | 2,449,547 | Shares | 2026-08-14 | |
| Mega JENNISON ASSOCIATES LLC Registered adviser | $129,722,285 | 1.69% | 2,358,587 | Shares | 2026-08-03 | |
| Mega Jupiter Topco LLC | $123,315,830 | 1.61% | 2,242,106 | Shares | 2026-08-14 | |
| Large Hood River Capital Management LLC Registered adviser | $122,363,340 | 1.60% | 2,224,788 | Shares | 2026-08-14 | |
| Large Driehaus Capital Management LLC Registered adviser | $121,308,990 | 1.58% | 2,205,618 | Shares | 2026-08-14 | |
| Mid EVENTIDE ASSET MANAGEMENT, LLC Registered adviser | $116,127,550 | 1.52% | 2,111,410 | Shares | 2026-08-14 | |
| Large Polar Capital Holdings Plc Registered adviser | $103,321,900 | 1.35% | 1,878,580 | Shares | 2026-08-14 | |
| Large Holocene Advisors, LP Registered adviser | $96,578,790 | 1.26% | 1,755,978 | Shares | 2026-08-14 | |
| Large ADAGE CAPITAL PARTNERS GP, L.L.C. Registered adviser | $95,227,110 | 1.24% | 1,731,402 | Shares | 2026-08-14 | |
| Mega MORGAN STANLEY Holding company | $84,632,680 | 1.10% | 1,538,776 | Shares | 2026-08-13 | |
| Large Woodline Partners LP Registered adviser | $82,525,850 | 1.08% | 1,500,470 | Shares | 2026-08-14 | |
| Mega GOLDMAN SACHS GROUP INC Holding company | $77,631,235 | 1.01% | 1,411,477 | Shares | 2026-08-14 | |
| Mega Capital World Investors Adviser | $63,822,495 | 0.83% | 1,160,409 | Shares | 2026-08-12 | |
| Mega Clearbridge Investments, LLC Registered adviser | $58,287,680 | 0.76% | 1,059,776 | Shares | 2026-08-13 | |
| Mega VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser | $56,504,635 | 0.74% | 1,027,357 | Shares | 2026-08-13 | |
| Large BNP PARIBAS ASSET MANAGEMENT Holding S.A. Non-US | $53,891,475 | 0.70% | 979,845 | Shares | 2026-08-13 | |
| Mega AMERICAN CENTURY COMPANIES INC | $53,635,835 | 0.70% | 975,197 | Shares | 2026-08-12 | |
| Mega NORTHERN TRUST CORP Bank | $53,601,680 | 0.70% | 974,576 | Shares | 2026-08-13 | |
| Mega BANK OF AMERICA CORP /DE/ Bank | $53,474,135 | 0.70% | 972,257 | Shares | 2026-08-14 | |
| Mega Pictet Asset Management Holding SA | $50,109,125 | 0.65% | 911,075 | Shares | 2026-07-30 | |
| Mega VOYA INVESTMENT MANAGEMENT LLC Registered adviser | $48,983,385 | 0.64% | 890,607 | Shares | 2026-08-12 | |
| Mega FRANKLIN RESOURCES INC Adviser | $48,329,930 | 0.63% | 878,726 | Shares | 2026-08-13 | |
| Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC Registered adviser | $47,535,730 | 0.62% | 864,286 | Shares | 2026-08-14 | |
| Mid Integral Health Asset Management, LLC Registered adviser | $41,250,000 | 0.54% | 750,000 | Shares | 2026-08-14 | |
| Large FEDERATED HERMES, INC. Adviser | $40,398,215 | 0.53% | 734,513 | Shares | 2026-08-12 | |
| Mega VANGUARD FIDUCIARY TRUST CO | $40,154,565 | 0.52% | 730,083 | Shares | 2026-08-13 | |
| Mega BNP PARIBAS ARBITRAGE, SA Non-US | $39,463,160 | 0.52% | 717,512 | Shares | 2026-08-13 | |
| Mid Rock Springs Capital Management LP Registered adviser | $39,349,860 | 0.51% | 715,452 | Shares | 2026-08-14 | |
| Mid Casdin Capital, LLC Registered adviser | $36,575,000 | 0.48% | 665,000 | Shares | 2026-08-14 | |
| Mega Nuveen, LLC | $35,846,195 | 0.47% | 651,749 | Shares | 2026-08-11 | |
| Large LOOMIS SAYLES & CO L P Registered adviser | $32,783,025 | 0.43% | 596,055 | Shares | 2026-08-14 | |
| Large Ensign Peak Advisors, Inc | $31,847,860 | 0.42% | 579,052 | Shares | 2026-08-14 | |
| Small Eagle Health Investments LP Registered adviser | $30,539,960 | 0.40% | 555,272 | Shares | 2026-08-10 | |
| Mega UBS Group AG Bank | $28,114,350 | 0.37% | 511,170 | Shares | 2026-08-13 | |
| Mega Qube Research & Technologies Ltd Exempt adviser | $25,505,150 | 0.33% | 463,730 | Shares | 2026-08-14 | |
| Mega Fisher Asset Management, LLC Adviser | $24,169,585 | 0.32% | 439,447 | Shares | 2026-08-04 | |
| Large MARSHALL WACE, LLP Exempt adviser | $23,677,500 | 0.31% | 430,500 | Shares | 2026-08-13 | |
| Mega Bank of New York Mellon Corp Bank | $20,086,990 | 0.26% | 365,218 | Shares | 2026-08-06 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $18,251,805 | 0.24% | 331,851 | Shares | 2026-09-02 | |
| Mega DEUTSCHE BANK AG\ Non-US | $16,679,740 | 0.22% | 303,268 | Shares | 2026-08-07 | |
| Large Squarepoint Ops LLC Registered adviser | $16,059,780 | 0.21% | 291,996 | Shares | 2026-08-14 | |
| Mid NAN FUNG TRINITY (HK) LTD | $15,702,225 | 0.20% | 285,495 | Shares | 2026-07-24 | |
| Mid ARMISTICE CAPITAL, LLC Registered adviser | $15,290,000 | 0.20% | 278,000 | Shares | 2026-08-14 | |
| Large Trexquant Investment LP Registered adviser | $15,164,160 | 0.20% | 275,712 | Shares | 2026-08-14 | |
| Small First Turn Management, LLC Registered adviser | $14,917,485 | 0.19% | 271,227 | Shares | 2026-08-14 | |
| Mega AQR CAPITAL MANAGEMENT LLC Registered adviser | $13,613,655 | 0.18% | 247,521 | Shares | 2026-08-14 | |
| Mega D. E. Shaw & Co., Inc. | $13,476,485 | 0.18% | 245,027 | Shares | 2026-08-14 | |
| Mega RAYMOND JAMES FINANCIAL INC | $13,236,575 | 0.17% | 240,665 | Shares | 2026-08-14 | |
| Small STEMPOINT CAPITAL LP Registered adviser | $13,153,030 | 0.17% | 239,146 | Shares | 2026-08-14 | |
| Large Candriam S.C.A. Registered adviser | $11,888,030 | 0.16% | 216,146 | Shares | 2026-08-13 | |
| Large Universal- Beteiligungs- und Servicegesellschaft mbH | $11,549,505 | 0.15% | 209,991 | Shares | 2026-08-06 | |
| Mid Senator Investment Group LP | $11,275,000 | 0.15% | 205,000 | Shares | 2026-08-12 | |
| Mid Logos Global Management LP Registered adviser | $11,000,000 | 0.14% | 200,000 | Shares | 2026-08-14 | |
| Mid Susquehanna Portfolio Strategies, LLC | $10,947,860 | 0.14% | 199,052 | Shares | 2026-08-14 | |
| Mid SEGALL BRYANT & HAMILL, LLC Registered adviser | $10,372,340 | 0.14% | 188,588 | Shares | 2026-08-12 | |
| Mega JPMORGAN CHASE & CO Bank | $9,773,060 | 0.13% | 177,692 | Shares | 2026-08-12 | |
| Mega SEI INVESTMENTS CO | $9,549,265 | 0.12% | 173,623 | Shares | 2026-08-14 | |
| Mid Granahan Investment Management, LLC Registered adviser | $9,006,745 | 0.12% | 163,759 | Shares | 2026-08-14 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $8,888,000 | 0.12% | 161,600 | Put | 2026-08-14 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $8,624,000 | 0.11% | 156,800 | Call | 2026-08-14 | |
| Mega Swiss National Bank | $8,239,000 | 0.11% | 149,800 | Shares | 2026-08-11 | |
| Mega RHUMBLINE ADVISERS Registered adviser | $8,000,300 | 0.10% | 145,460 | Shares | 2026-08-12 | |
| Mega ALLIANCEBERNSTEIN L.P. Registered adviser | $7,690,100 | 0.10% | 139,820 | Shares | 2026-08-14 | |
| Mid PEREGRINE CAPITAL MANAGEMENT LLC Registered adviser | $7,674,370 | 0.10% | 139,534 | Shares | 2026-07-17 | |
| Mega AMERIPRISE FINANCIAL INC Adviser | $7,341,510 | 0.10% | 133,482 | Shares | 2026-08-14 | |
| Small GordonMD Global Investments LP | $7,287,500 | 0.10% | 132,500 | Shares | 2026-08-14 | |
| Mega Russell Investments Group, Ltd. | $7,178,270 | 0.09% | 130,514 | Shares | 2026-08-06 | |
| Mid MGO ONE SEVEN LLC Registered adviser | $6,879,235 | 0.09% | 125,077 | Shares | 2026-07-31 | |
| Mid iA Global Asset Management Inc. | $6,754,660 | 0.09% | 122,812 | Shares | 2026-07-29 | |
| Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE | $6,722,265 | 0.09% | 122,223 | Shares | 2026-09-09 | |
| Mega TD Asset Management Inc | $6,620,020 | 0.09% | 120,364 | Shares | 2026-08-04 | |
| Mega WELLS FARGO & COMPANY/MN Bank | $6,325,605 | 0.08% | 115,011 | Shares | 2026-08-14 | |
| Mega CITIGROUP INC Bank | $6,216,705 | 0.08% | 113,031 | Shares | 2026-08-03 | |
| Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC Registered adviser | $6,115,230 | 0.08% | 111,186 | Shares | 2026-08-13 | |
| Mid EFG International AG | $6,084,870 | 0.08% | 110,634 | Shares | 2026-08-14 | |
| Large Man Group plc | $5,739,030 | 0.07% | 104,346 | Shares | 2026-08-14 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $5,566,000 | 0.07% | 101,200 | Put | 2026-09-02 | |
| Mid Ghisallo Capital Management LLC Registered adviser | $5,500,000 | 0.07% | 100,000 | Shares | 2026-08-14 | |
| Small Artia Global Partners LP Registered adviser | $5,295,675 | 0.07% | 96,285 | Shares | 2026-08-14 | |
| Small SPHERA FUNDS MANAGEMENT LTD. Exempt adviser | $5,184,575 | 0.07% | 94,265 | Shares | 2026-08-14 | |
| Mega Invesco Ltd. Adviser | $5,178,580 | 0.07% | 94,156 | Shares | 2026-08-14 | |
| Large RENAISSANCE TECHNOLOGIES LLC Registered adviser | $5,032,500 | 0.07% | 91,500 | Shares | 2026-08-13 | |
| Mid FIDEURAM - INTESA SANPAOLO PRIVATE BANKING S.P.A. | $5,005,990 | 0.07% | 91,018 | Shares | 2026-07-23 | |
| Mid Nicholas Investment Partners, LP Registered adviser | $4,968,370 | 0.06% | 90,334 | Shares | 2026-08-14 | |
| Small BEACONLIGHT CAPITAL, LLC Registered adviser | $4,834,115 | 0.06% | 87,893 | Shares | 2026-08-14 | |
| Mega CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Benefit plan | $4,710,420 | 0.06% | 85,644 | Shares | 2026-08-24 | |
| Mega VANGUARD ASSET MANAGEMENT, Ltd | $4,385,535 | 0.06% | 79,737 | Shares | 2026-08-13 |
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