STTK · Shattuck Labs, Inc. · Holdings
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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 103 13F filersWho Holds STTK
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: 100 filers, like-for-like change +49.5%; actively managed books +40.2%; index-like books +129.3%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 50.2% | 44 | +51.4% |
| Exempt adviser | 0.1% | 1 | -92.6% |
| Adviser | 20.6% | 4 | +59.5% |
| Bank | 2.4% | 10 | +150.3% |
| Benefit plan | 0.0% | 1 | -97.5% |
| Non-US | 0.7% | 4 | +73.0% |
| Holding company | 9.9% | 6 | +237.3% |
| Insurer | 0.0% | 0 | — |
| Unknown | 16.2% | 30 | +7.1% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 16.0% | 17 | +129.3% |
| Systematic-like | 3.0% | 8 | -21.9% |
| Concentrated | 26.2% | 11 | +50.2% |
| Diversified active | 54.9% | 64 | +41.9% |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 24.5% | 50 | +131.2% |
| Medium turnover | 54.5% | 25 | +53.1% |
| High turnover | 10.4% | 18 | -21.0% |
| Unknown | 10.6% | 7 | +41.3% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 10.8% | 12 | +33.3% |
| Medium horizon | 34.1% | 17 | +83.2% |
| Long horizon | 42.3% | 64 | +60.4% |
| Unknown | 12.8% | 7 | -7.0% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 13.9% | 15 | +11.5% |
| $1B to $10B | 31.3% | 26 | +72.6% |
| $10B to $100B | 14.8% | 17 | +46.9% |
| $100B or more | 39.9% | 42 | +52.7% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 0.4% | 10 | +55.1% |
| Pooled investment vehicles | 36.0% | 17 | +45.0% |
| Registered funds and BDCs | 10.5% | 7 | +77.3% |
| Insurance companies | 0.1% | 3 | new |
| Governments and sovereign funds | 0.6% | 2 | +72.2% |
| Other investment advisers | 0.0% | 0 | — |
| Diversified | 2.6% | 5 | +46.1% |
| Pension and profit sharing plans | 0.0% | 0 | — |
| Unknown | 49.8% | 56 | +47.7% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 24.4% | 16 | +29.9% |
| Private equity funds | 0.2% | 4 | +97.2% |
| Real estate funds | 0.0% | 0 | — |
| Other private funds | 13.8% | 9 | +15.9% |
| Mixed private funds | 4.5% | 2 | new |
| Private funds, type not stated | 0.0% | 1 | -53.2% |
| No private funds | 7.2% | 13 | +99.6% |
| Securitized asset funds | 0.0% | 0 | — |
| Unknown | 49.7% | 55 | +53.8% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 95.8% | 81 | +53.3% |
| Outside the US | 4.2% | 19 | -3.9% |
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 2 holders with no observed 2026-06-30 13F.
Conviction and Crowding
100 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 $4,405,599 (1 buying, 1 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 90.5% 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 STTK's active holders also own, quarter ended Jun 30, 2026| # | Company | Shared holders |
|---|---|---|
| 1 | PMN ProMIS Neurosciences Inc. | 3 |
| 2 | ORIC Oric Pharmaceuticals, Inc. | 5 |
| 3 | GPCR Structure Therapeutics Inc. | 6 |
| 4 | JANX Janux Therapeutics, Inc. | 3 |
| 5 | UPB Upstream Bio, Inc. | 3 |
| 6 | FBRX Forte Biosciences, Inc. | 3 |
| 7 | MAZE Maze Therapeutics, Inc. | 4 |
| 8 | COGT Cogent Biosciences, Inc. | 6 |
| 9 | BIOA BioAge Labs, Inc. | 4 |
| 10 | CRVS Corvus Pharmaceuticals, Inc. | 4 |
Shareholder Targets
13F filers that own its peers but not STTK, quarter ended Jun 30, 2026Found through its holder-overlap peers: PMN, ORIC, GPCR, JANX, UPB, FBRX, MAZE, COGT, BIOA, CRVS, LXEO, CRBP, IVVD, VSTM, ZYME, CLYM, SVRA, IRON, ODTX, NRIX. 622 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | Jupiter Topco LLC Unknown, Diversified active | $792,361,703 15 held | GPCR, COGT, MAZE |
| 2 | EcoR1 Capital, LLC Registered adviser, Concentrated | $690,256,072 4 held | ZYME, ORIC, ODTX |
| 3 | RA CAPITAL MANAGEMENT, L.P. Registered adviser, Concentrated | $569,417,182 6 held | IRON, JANX, CLYM |
| 4 | TCG Crossover Management, LLC Unknown, Diversified active | $409,200,158 5 held | COGT, IRON, SVRA |
| 5 | DEERFIELD MANAGEMENT COMPANY, L.P. Registered adviser, Concentrated | $403,233,124 5 held | COGT, SVRA, GPCR |
| 6 | BVF INC/IL Unknown, Concentrated | $385,021,022 4 held | GPCR, ZYME, IRON |
| 7 | Avoro Capital Advisors LLC Registered adviser, Concentrated | $358,768,810 2 held | GPCR, LXEO |
| 8 | Rubric Capital Management LP Registered adviser, Diversified active | $358,325,894 2 held | ZYME, NRIX |
| 9 | Vestal Point Capital, LP Registered adviser, Diversified active | $345,524,800 4 held | NRIX, IRON, LXEO |
| 10 | Woodline Partners LP Registered adviser, Systematic-like | $337,668,951 14 held | COGT, IRON, SVRA |
Fund Ownership of STTK by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 6.40% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 1.02% | 1,039,646 |
| Index ETFs | 5.38% | 5,481,788 |
| Active ETFs | 0.08% | 77,690 |
| Active funds | 13.27% | 13,513,288 |
| Unclassified | 0.05% | 49,529 |
| All registered funds | 19.80% | 20,161,941 |
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 T. Rowe Price Investment Management, Inc. Adviser | $93,221,827 | 15.82% | 13,432,540 | Shares | 2026-08-14 | |
| Large ADAGE CAPITAL PARTNERS GP, L.L.C. Registered adviser | $56,367,922 | 9.56% | 8,122,179 | Shares | 2026-08-14 | |
| Mid Redmile Group, LLC Registered adviser | $47,830,709 | 8.12% | 6,892,033 | Shares | 2026-08-14 | |
| Mid ORBIMED ADVISORS LLC Registered adviser | $43,764,521 | 7.43% | 6,306,127 | Shares | 2026-08-14 | |
| Small Prosight Management, LP | $41,347,666 | 7.02% | 5,957,877 | Shares | 2026-08-14 | |
| Mega BlackRock, Inc. Holding company | $27,314,519 | 4.63% | 3,935,810 | Shares | 2026-08-07 | |
| Mid Frazier Life Sciences Management, L.P. Registered adviser | $26,025,000 | 4.42% | 3,750,000 | Shares | 2026-08-14 | |
| Small NEXTBio Capital Management LP | $25,867,795 | 4.39% | 3,727,348 | Shares | 2026-08-14 | |
| Mid Deep Track Capital, LP Adviser | $25,724,733 | 4.36% | 3,706,734 | Shares | 2026-08-14 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC Registered adviser | $22,262,583 | 3.78% | 3,207,865 | Shares | 2026-08-13 | |
| Mega PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser | $18,329,067 | 3.11% | 2,641,076 | Shares | 2026-08-14 | |
| Mid PINNACLE ASSOCIATES LTD Registered adviser | $14,320,492 | 2.43% | 2,099,779 | Shares | 2026-10-20 | |
| Mega WELLINGTON MANAGEMENT GROUP LLP Holding company | $12,269,488 | 2.08% | 1,767,938 | Shares | 2026-08-14 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC Registered adviser | $10,998,206 | 1.87% | 1,584,756 | Shares | 2026-08-12 | |
| Small CLARK ESTATES INC/NY | $9,925,358 | 1.68% | 1,430,167 | Shares | 2026-08-05 | |
| Large Aberdeen Group plc Holding company | $9,756,605 | 1.66% | 1,405,851 | Shares | 2026-07-31 | |
| Large Point72 Asset Management, L.P. Registered adviser | $8,124,880 | 1.38% | 1,170,732 | Shares | 2026-08-14 | |
| Mid 683 Capital Management, LLC Registered adviser | $8,031,079 | 1.36% | 1,157,216 | Shares | 2026-08-14 | |
| Mega STATE STREET CORP Bank | $7,123,174 | 1.21% | 1,026,394 | Shares | 2026-09-22 | |
| Mid Boxer Capital Management, LLC Registered adviser | $6,940,000 | 1.18% | 1,000,000 | Shares | 2026-08-14 | |
| Mega VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser | $6,572,075 | 1.12% | 946,985 | Shares | 2026-08-13 | |
| Large RENAISSANCE TECHNOLOGIES LLC Registered adviser | $5,161,701 | 0.88% | 743,761 | Shares | 2026-08-13 | |
| Mega GOLDMAN SACHS GROUP INC Holding company | $4,117,668 | 0.70% | 593,324 | Shares | 2026-08-14 | |
| Mega TD Asset Management Inc | $3,878,599 | 0.66% | 558,876 | Shares | 2026-08-04 | |
| Mega NORTHERN TRUST CORP Bank | $3,610,992 | 0.61% | 520,316 | Shares | 2026-08-13 | |
| Mega VANGUARD FIDUCIARY TRUST CO | $3,216,100 | 0.55% | 463,415 | Shares | 2026-08-13 | |
| Mid S&G Foundation | $3,024,098 | 0.51% | 435,749 | Shares | 2026-08-12 | |
| Mid ALGERT GLOBAL LLC Registered adviser | $2,923,037 | 0.50% | 421,187 | Shares | 2026-08-13 | |
| Mega FMR LLC Holding company | $2,724,616 | 0.46% | 392,596 | Shares | 2026-08-13 | |
| Mega DEUTSCHE BANK AG\ Non-US | $2,474,303 | 0.42% | 356,528 | Shares | 2026-08-07 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $2,131,968 | 0.36% | 307,200 | Call | 2026-08-14 | |
| Large Connor, Clark & Lunn Investment Management Ltd. Registered adviser | $1,988,233 | 0.34% | 286,489 | Shares | 2026-08-13 | |
| Mid Hillsdale Investment Management Inc. Registered adviser | $1,828,120 | 0.31% | 263,418 | Shares | 2026-08-12 | |
| Mega Bank of New York Mellon Corp Bank | $1,810,715 | 0.31% | 265,501 | Shares | 2026-11-05 | |
| Large ACADIAN ASSET MANAGEMENT LLC | $1,685,948 | 0.29% | 242,932 | Shares | 2026-08-13 | |
| Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE Non-US | $1,575,872 | 0.27% | 227,071 | Shares | 2026-09-09 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1,395,634 | 0.24% | 201,100 | Put | 2026-08-14 | |
| Large Caption Management, LLC Registered adviser | $1,388,000 | 0.24% | 200,000 | Call | 2026-08-14 | |
| Mega MILLENNIUM MANAGEMENT LLC Registered adviser | $1,346,415 | 0.23% | 194,008 | Shares | 2026-08-14 | |
| Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC Registered adviser | $1,317,899 | 0.22% | 189,899 | Shares | 2026-08-14 | |
| Micro West Tower Group, LLC Registered adviser | $1,306,882 | 0.22% | 191,625 | Shares | 2026-10-14 | |
| Mega TWO SIGMA INVESTMENTS, LP Registered adviser | $1,290,472 | 0.22% | 185,947 | Shares | 2026-08-14 | |
| Mega MORGAN STANLEY Holding company | $1,261,078 | 0.21% | 181,712 | Shares | 2026-08-13 | |
| Mega DIMENSIONAL FUND ADVISORS LP Registered adviser | $1,061,477 | 0.18% | 155,642 | Shares | 2026-11-04 | |
| Mid XTX Topco Ltd | $650,652 | 0.11% | 93,754 | Shares | 2026-08-14 | |
| Large Jump Financial, LLC | $616,272 | 0.10% | 88,800 | Shares | 2026-08-13 | |
| Small SPHERA FUNDS MANAGEMENT LTD. Exempt adviser | $600,039 | 0.10% | 86,461 | Shares | 2026-08-14 | |
| Mega Nuveen, LLC | $565,068 | 0.10% | 81,422 | Shares | 2026-08-11 | |
| Small LBJ Family Wealth Advisors, Ltd. Registered adviser | $560,447 | 0.10% | 82,177 | Shares | 2026-10-01 | |
| Large Pathstone Holdings, LLC | $513,254 | 0.09% | 73,956 | Shares | 2026-08-13 | |
| Large Squarepoint Ops LLC Registered adviser | $496,536 | 0.08% | 71,547 | Shares | 2026-08-14 | |
| Mega RHUMBLINE ADVISERS Registered adviser | $496,126 | 0.08% | 71,488 | Shares | 2026-08-12 | |
| Mid Coastline Trust Co | $477,400 | 0.08% | 70,000 | Shares | 2026-10-01 | |
| Mid GSA CAPITAL PARTNERS LLP Registered adviser | $474,494 | 0.08% | 68,371 | Shares | 2026-08-06 | |
| Mega Invesco Ltd. Adviser | $452,833 | 0.08% | 65,250 | Shares | 2026-08-14 | |
| Mid Y-Intercept (Hong Kong) Ltd Exempt adviser | $429,564 | 0.07% | 62,986 | Shares | 2026-10-16 | |
| Mega UBS Group AG Bank | $397,238 | 0.07% | 57,239 | Shares | 2026-08-13 | |
| Small Verdad Advisers, LP | $397,183 | 0.07% | 57,231 | Shares | 2026-08-14 | |
| Mega WELLS FARGO & COMPANY/MN Bank | $384,246 | 0.07% | 55,367 | Shares | 2026-08-14 | |
| Large BLAIR WILLIAM & CO/IL Registered adviser | $378,028 | 0.06% | 54,471 | Shares | 2026-08-11 | |
| Large Cerity Partners LLC Registered adviser | $366,050 | 0.06% | 52,745 | Shares | 2026-08-14 | |
| Mid Davis Asset Management, L.P. | $335,035 | 0.06% | 48,276 | Shares | 2026-08-12 | |
| Mega BANK OF AMERICA CORP /DE/ Bank | $318,670 | 0.05% | 45,918 | Shares | 2026-08-14 | |
| Mid SIMPLEX TRADING, LLC | $310,998 | 0.05% | 45,601 | Shares | 2026-11-04 | |
| Mega HSBC HOLDINGS PLC | $294,568 | 0.05% | 42,445 | Shares | 2026-08-14 | |
| Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC Registered adviser | $293,562 | 0.05% | 42,300 | Shares | 2026-08-14 | |
| Mega CITIGROUP INC Bank | $259,732 | 0.04% | 38,084 | Shares | 2026-11-04 | |
| Large MetLife Investment Management, LLC Registered adviser | $259,694 | 0.04% | 37,420 | Shares | 2026-08-14 | |
| Mega AMERIPRISE FINANCIAL INC Adviser | $246,710 | 0.04% | 35,549 | Shares | 2026-08-14 | |
| Mega Creative Planning Registered adviser | $242,805 | 0.04% | 35,602 | Shares | 2026-11-02 | |
| Mega ALLIANCEBERNSTEIN L.P. Registered adviser | $230,338 | 0.04% | 33,190 | Shares | 2026-08-14 | |
| Mega JANE STREET GROUP, LLC | $226,244 | 0.04% | 32,600 | Call | 2026-08-14 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $208,894 | 0.04% | 30,100 | Call | 2026-09-02 | |
| Small MIDDLETON & CO INC/MA Registered adviser | $204,600 | 0.03% | 30,000 | Shares | 2026-10-23 | |
| Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $195,201 | 0.03% | 28,127 | Shares | 2026-08-14 | |
| Mid PROFUND ADVISORS LLC Registered adviser | $194,779 | 0.03% | 28,560 | Shares | 2026-10-29 | |
| Mega Russell Investments Group, Ltd. | $194,750 | 0.03% | 28,062 | Shares | 2026-08-06 | |
| Mid CHOREO, LLC Registered adviser | $185,851 | 0.03% | 27,251 | Shares | 2026-10-28 | |
| Small EntryPoint Capital, LLC Registered adviser | $183,125 | 0.03% | 26,387 | Shares | 2026-08-13 | |
| Mega JPMORGAN CHASE & CO Bank | $178,135 | 0.03% | 25,668 | Shares | 2026-08-12 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $174,721 | 0.03% | 25,176 | Shares | 2026-08-14 | |
| Mid China Universal Asset Management Co., Ltd. | $174,592 | 0.03% | 25,600 | Shares | 2026-10-28 | |
| Small Mallini Complete Financial Planning LLC Registered adviser | $157,760 | 0.03% | 23,132 | Shares | 2026-10-06 | |
| Mega Vanguard Global Advisers, LLC Registered adviser | $137,654 | 0.02% | 19,835 | Shares | 2026-08-13 | |
| Mid MGO ONE SEVEN LLC Registered adviser | $136,406 | 0.02% | 20,001 | Shares | 2026-10-28 | |
| Large Police & Firemen's Retirement System of New Jersey | $125,558 | 0.02% | 18,092 | Shares | 2026-07-23 | |
| Mega BARCLAYS PLC Bank | $120,575 | 0.02% | 17,374 | Shares | 2026-08-14 | |
| Large BENJAMIN EDWARDS INC | $119,992 | 0.02% | 17,290 | Shares | 2026-07-24 | |
| Mega JANE STREET GROUP, LLC | $100,630 | 0.02% | 14,500 | Put | 2026-08-14 | |
| Large NEW YORK STATE COMMON RETIREMENT FUND | $98,548 | 0.02% | 14,200 | Shares | 2026-07-29 | |
| Small FOX RUN MANAGEMENT, L.L.C. Registered adviser | $83,522 | 0.01% | 12,035 | Shares | 2026-08-04 | |
| Mega VOYA INVESTMENT MANAGEMENT LLC Registered adviser | $81,739 | 0.01% | 11,778 | Shares | 2026-08-12 | |
| Large INTECH INVESTMENT MANAGEMENT LLC Registered adviser | $73,522 | 0.01% | 10,594 | Shares | 2026-08-10 | |
| Large ProShare Advisors LLC Registered adviser | $70,143 | 0.01% | 10,285 | Shares | 2026-10-29 | |
| Mega BNP PARIBAS ARBITRAGE, SA Non-US | $63,965 | 0.01% | 9,217 | Shares | 2026-08-13 | |
| Mega Legal & General Group Plc | $41,334 | 0.01% | 5,956 | Shares | 2026-08-14 | |
| Mid Ameritas Investment Partners, Inc. Registered adviser | $38,634 | 0.01% | 5,567 | Shares | 2026-08-13 | |
| Mid Tower Research Capital LLC (TRC) | $35,623 | 0.01% | 5,133 | Shares | 2026-08-11 | |
| Mega ROYAL BANK OF CANADA Bank | $29,113 | 0.00% | 4,195 | Shares | 2026-08-14 | |
| Small FNY Investment Advisers, LLC | $23,870 | 0.00% | 3,500 | Shares | 2026-10-16 |
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