SHATTUCK LABS INC (STTK)
Institutional ownership reported to the SEC as of Q2 2026, across 24 quarters.
Institutions report 83,775,228 shares against 100,363,253 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| T. Rowe Price Investment Management, Inc. | $93.2M | 13,432,540 | 0.06% | 3q | +36.2%+$24.8M |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | $56.4M | 8,122,179 | 0.08% | 11q | +74.9%+$24.1M |
| Redmile Group, LLC | $47.8M | 6,892,033 | 3.21% | 23q | +24.4%+$9.4M |
| ORBIMED ADVISORS LLC | $43.8M | 6,306,127 | 0.81% | 4q | HELD |
| Prosight Management, LP | $41.3M | 5,957,877 | 7.12% | 20q | +19.1%+$6.6M |
| BlackRock, Inc. | $27.3M | 3,935,810 | 0.00% | 8q | +670.5%+$23.8M |
| Frazier Life Sciences Management, L.P. | $26.0M | 3,750,000 | 0.57% | new | NEW |
| NEXTBio Capital Management LP | $25.9M | 3,727,348 | 11.90% | 3q | +18.3%+$4.0M |
| Deep Track Capital, LP | $25.7M | 3,706,734 | 0.37% | new | NEW |
| VANGUARD CAPITAL MANAGEMENT LLC | $22.3M | 3,207,865 | 0.00% | 2q | +40.9%+$6.5M |
| PRICE T ROWE ASSOCIATES INC /MD/ | $18.3M | 2,641,076 | 0.00% | 3q | +48.1%+$6.0M |
| PINNACLE ASSOCIATES LTD | $13.0M | 1,871,442 | 0.14% | 13q | +36.8%+$3.5M |
| WELLINGTON MANAGEMENT GROUP LLP | $12.3M | 1,767,938 | 0.00% | new | NEW |
| GEODE CAPITAL MANAGEMENT, LLC | $11.0M | 1,584,756 | 0.00% | 23q | +145.4%+$6.5M |
| CLARK ESTATES INC/NY | $9.9M | 1,430,167 | 2.29% | 23q | -3.1%-$315.6K |
| Aberdeen Group plc | $9.8M | 1,405,851 | 0.01% | 4q | +21.3%+$1.7M |
| Point72 Asset Management, L.P. | $8.1M | 1,170,732 | 0.01% | 3q | +13.5%+$969.4K |
| 683 Capital Management, LLC | $8.0M | 1,157,216 | 0.39% | 7q | +44.7%+$2.5M |
| STATE STREET CORP | $7.1M | 1,026,394 | 0.00% | 23q | +289.1%+$5.3M |
| Boxer Capital Management, LLC | $6.9M | 1,000,000 | 0.52% | new | NEW |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $6.6M | 946,985 | 0.00% | new | NEW |
| RENAISSANCE TECHNOLOGIES LLC | $5.2M | 743,761 | 0.01% | 19q | +23.0%+$966.5K |
| GOLDMAN SACHS GROUP INC | $4.1M | 593,324 | 0.00% | 11q | +209.9%+$2.8M |
| TD Asset Management Inc | $3.9M | 558,876 | 0.00% | 3q | +46.1%+$1.2M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $3.7M incl. $3.5M options CALL+PUT | 25,176 | 0.00% | 11q | -96.5%-$101.6M |
| NORTHERN TRUST CORP | $3.6M | 520,316 | 0.00% | 23q | +312.7%+$2.7M |
| VANGUARD FIDUCIARY TRUST CO | $3.2M | 463,415 | 0.00% | 2q | +42.8%+$963.5K |
| S&G Foundation | $3.0M | 435,749 | 0.14% | 2q | HELD |
| ALGERT GLOBAL LLC | $2.9M | 421,187 | 0.03% | 2q | +47.2%+$937.7K |
| FMR LLC | $2.7M | 392,596 | 0.00% | 23q | HELD |
| DEUTSCHE BANK AG\ | $2.5M | 356,528 | 0.00% | 2q | +83.0%+$1.1M |
| Connor, Clark & Lunn Investment Management Ltd. | $2.0M | 286,489 | 0.00% | 3q | +105.7%+$1.0M |
| Hillsdale Investment Management Inc. | $1.8M | 263,418 | 0.04% | 2q | +302.8%+$1.4M |
| ACADIAN ASSET MANAGEMENT LLC | $1.7M | 242,932 | 0.00% | 9q | +32.6%+$413.5K |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $1.6M | 227,071 | 0.00% | 3q | +59.6%+$588.3K |
| Bank of New York Mellon Corp | $1.5M | 218,505 | 0.00% | 23q | +143.4%+$893.4K |
| Caption Management, LLC | $1.4M CALL | options only | 0.01% | new | OPTIONS |
| MILLENNIUM MANAGEMENT LLC | $1.3M | 194,008 | 0.00% | 20q | -74.6%-$4.0M |
| West Tower Group, LLC | $1.3M | 191,625 | 3.73% | new | NEW |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $1.3M | 189,899 | 0.00% | 23q | +364.5%+$1.0M |
| TWO SIGMA INVESTMENTS, LP | $1.3M | 185,947 | 0.00% | 10q | -41.2%-$902.7K |
| MORGAN STANLEY | $1.3M | 181,712 | 0.00% | 23q | -9.2%-$127.9K |
| DIMENSIONAL FUND ADVISORS LP | $1.1M | 155,642 | 0.00% | 3q | HELD |
| XTX Topco Ltd | $650.7K | 93,754 | 0.01% | 4q | -34.2%-$338.1K |
| Jump Financial, LLC | $616.3K | 88,800 | 0.00% | 2q | +259.7%+$445.0K |
| SPHERA FUNDS MANAGEMENT LTD. | $600.0K | 86,461 | 0.08% | 3q | -69.2%-$1.3M |
| Nuveen, LLC | $565.1K | 81,422 | 0.00% | new | NEW |
| LBJ Family Wealth Advisors, Ltd. | $563.0K | 82,177 | 0.29% | 4q | HELD |
| Pathstone Holdings, LLC | $513.3K | 73,956 | 0.00% | 11q | HELD |
| Squarepoint Ops LLC | $496.5K | 71,547 | 0.00% | 4q | +129.6%+$280.3K |
| RHUMBLINE ADVISERS | $496.1K | 71,488 | 0.00% | new | NEW |
| Coastline Trust Co | $485.8K | 70,000 | 0.04% | new | NEW |
| GSA CAPITAL PARTNERS LLP | $474.0K | 68,371 | 0.03% | new | NEW |
| Invesco Ltd. | $452.8K | 65,250 | 0.00% | 3q | +76.7%+$196.5K |
| UBS Group AG | $397.2K | 57,239 | 0.00% | 10q | +57.8%+$145.5K |
| Verdad Advisers, LP | $397.2K | 57,231 | 0.38% | 2q | +327.8%+$304.3K |
| WELLS FARGO & COMPANY/MN | $384.2K | 55,367 | 0.00% | new | NEW |
| BLAIR WILLIAM & CO/IL | $378.0K | 54,471 | 0.00% | new | NEW |
| Cerity Partners LLC | $366.1K | 52,745 | 0.00% | new | NEW |
| Davis Asset Management, L.P. | $335.0K | 48,276 | 0.01% | 2q | HELD |
| JANE STREET GROUP, LLC | $326.9K CALL+PUT | options only | 0.00% | 11q | OPTIONS |
| BANK OF AMERICA CORP /DE/ | $318.7K | 45,918 | 0.00% | 16q | -42.5%-$236.0K |
| HSBC HOLDINGS PLC | $311.8K | 42,445 | 0.00% | 2q | HELD |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | $293.6K | 42,300 | 0.01% | 17q | HELD |
| MetLife Investment Management, LLC | $259.7K | 37,420 | 0.00% | new | NEW |
| AMERIPRISE FINANCIAL INC | $246.7K | 35,549 | 0.00% | 3q | -96.1%-$6.0M |
| SIMPLEX TRADING, LLC | $225.7K incl. $188.1K options CALL+PUT | 5,417 | 0.00% | new | NEW |
| ALLIANCEBERNSTEIN L.P. | $213.4K | 33,190 | 0.00% | new | NEW |
| CITADEL ADVISORS LLC | $208.9K CALL | options only | 0.00% | 5q | OPTIONS |
| MIDDLETON & CO INC/MA | $208.2K | 30,000 | 0.02% | new | NEW |
| GROUP ONE TRADING LLC | $208.2K CALL | options only | 0.00% | new | OPTIONS |
| CITIGROUP INC | $199.7K | 28,771 | 0.00% | 11q | -61.6%-$320.9K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $195.2K | 28,127 | 0.00% | new | NEW |
| Russell Investments Group, Ltd. | $194.8K | 28,062 | 0.00% | new | NEW |
| EntryPoint Capital, LLC | $183.1K | 26,387 | 0.04% | new | NEW |
| RITHOLTZ WEALTH MANAGEMENT | $180.4K | 26,000 | 0.00% | 21q | HELD |
| JPMORGAN CHASE & CO | $175.8K | 25,668 | 0.00% | 23q | +10250.0%+$174.1K |
| Mallini Complete Financial Planning LLC | $157.1K | 22,632 | 0.11% | 3q | HELD |
| State of Wyoming | $151.2K | 21,785 | 0.02% | new | NEW |
| CHOREO, LLC | $139.8K | 27,251 | 0.00% | 7q | HELD |
| MGO ONE SEVEN LLC | $138.8K | 20,000 | 0.00% | new | NEW |
| Vanguard Global Advisers, LLC | $137.7K | 19,835 | 0.00% | 2q | -24.6%-$44.8K |
| Police & Firemen's Retirement System of New Jersey | $125.6K | 18,092 | 0.00% | new | NEW |
| BARCLAYS PLC | $120.6K | 17,374 | 0.00% | 2q | -85.5%-$711.4K |
| BENJAMIN EDWARDS INC | $120.0K | 17,290 | 0.00% | 2q | -26.1%-$42.4K |
| China Universal Asset Management Co., Ltd. | $101.6K | 14,641 | 0.01% | new | NEW |
| NEW YORK STATE COMMON RETIREMENT FUND | $98.5K | 14,200 | 0.00% | new | NEW |
| Creative Planning | $85.6K | 12,335 | 0.00% | 4q | HELD |
| FOX RUN MANAGEMENT, L.L.C. | $83.5K | 12,035 | 0.01% | new | NEW |
| VOYA INVESTMENT MANAGEMENT LLC | $81.7K | 11,778 | 0.00% | new | NEW |
| INTECH INVESTMENT MANAGEMENT LLC | $73.5K | 10,594 | 0.00% | new | NEW |
| BNP PARIBAS FINANCIAL MARKETS | $64.0K | 9,217 | 0.00% | 7q | +63.4%+$24.8K |
| Legal & General Group Plc | $41.3K | 5,956 | 0.00% | new | NEW |
| Ameritas Investment Partners, Inc. | $38.6K | 5,567 | 0.00% | new | NEW |
| Tower Research Capital LLC (TRC) | $35.6K | 5,133 | 0.00% | new | NEW |
| ROYAL BANK OF CANADA | $29.0K | 4,195 | 0.00% | 2q | +5646.6%+$28.5K |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $5.9K | 845 | 0.00% | new | NEW |
| Larson Financial Group LLC | $3.5K | 500 | 0.00% | new | NEW |
| Truvestments Capital LLC | $3.4K | 491 | 0.00% | new | NEW |
| Sterling Capital Management LLC | $2.4K | 348 | 0.00% | new | NEW |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-10-27 | 13G | BlackRock, Inc. | 5.3% |
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-09 | SIEGALL CLAY B | Director | Bought | 62,500 | $250.0K |
| 2026-06-30 | Pandite Arundathy N. | Chief Medical Officer | Sold | 30,000 | $210.3K |
| 2026-05-12 | Pandite Arundathy N. | Chief Medical Officer | Sold | 30,000 | $198.3K |
| 2026-06-30 | Shukla Abhinav A. | Chief Technical Officer | Sold | 23,365 | $165.4K |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 22 | $18.2M | 2,680,477 | 10 | 5 | 1 | 0.0% |
| Q2 2026 | 104 | $587.2M | 83,775,228 | 40 | 35 | 17 | 1.0% |
| Q1 2026 | 85 | $360.5M | 56,070,181 | 22 | 32 | 12 | 0.0% |
| Q4 2025 | 64 | $155.2M | 42,533,328 | 14 | 17 | 12 | 0.0% |
| Q3 2025 | 58 | $87.2M | 36,387,969 | 16 | 11 | 20 | 0.3% |
| Q2 2025 | 60 | $22.7M | 28,663,925 | 11 | 19 | 20 | 0.1% |
| Q1 2025 | 76 | $29.6M | 31,188,106 | 9 | 16 | 22 | 0.0% |
| Q4 2024 | 74 | $38.3M | 31,632,474 | 12 | 23 | 17 | 0.0% |
| Q3 2024 | 76 | $125.2M | 36,319,465 | 13 | 28 | 17 | 0.2% |
| Q2 2024 | 74 | $132.1M | 34,194,939 | 23 | 27 | 16 | 0.1% |
| Q1 2024 | 69 | $285.9M | 31,669,801 | 23 | 25 | 9 | 1.0% |
| Q4 2023 | 61 | $211.0M | 29,157,153 | 27 | 13 | 11 | 1.5% |
| Q3 2023 | 39 | $30.2M | 19,886,098 | 1 | 5 | 16 | 0.0% |
| Q2 2023 | 41 | $62.9M | 20,147,698 | 3 | 8 | 14 | 0.0% |
| Q1 2023 | 48 | $78.6M | 26,722,583 | 5 | 12 | 12 | 0.0% |
| Q4 2022 | 47 | $47.1M | 20,497,854 | 2 | 13 | 15 | 0.0% |
| Q3 2022 | 62 | $56.0M | 20,746,079 | 8 | 13 | 23 | 0.0% |
| Q2 2022 | 65 | $86.5M | 21,317,768 | 15 | 8 | 30 | 0.0% |
| Q1 2022 | 75 | $102.0M | 23,947,597 | 9 | 25 | 25 | 0.0% |
| Q4 2021 | 81 | $210.2M | 24,138,751 | 23 | 32 | 10 | 0.0% |
| Q3 2021 | 68 | $695.6M | 34,131,365 | 13 | 25 | 17 | 0.0% |
| Q2 2021 | 65 | $750.1M | 25,875,812 | 20 | 26 | 12 | 0.0% |
| Q1 2021 | 54 | $808.8M | 27,760,551 | 7 | 18 | 15 | 0.0% |
| Q4 2020 | 58 | $1.4B | 27,007,582 | 58 | 0 | 0 | 0.0% |
