Shattuck Labs, Inc. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| OrbiMed Capital GP IX LLC | — | Purchase | 1,051,021 | $0.87 | $914,388 | 1,051,021 | Aug 25, 2025 |
| Ashiya Mona | — | Purchase | 5,255,106 | $0.87 | $4,571,942 | 5,255,106 | Aug 25, 2025 |
| Neill Andrew R | Chief Financial Officer | Award / Grant | 64,027 | $0.87 | $55,703 | 237,473 | Aug 25, 2025 |
| Schreiber Taylor | Chief Executive Officer | Award / Grant | 25,610 | $0.87 | $22,281 | 96,612 | Aug 25, 2025 |
| Stout Stephen | See Remarks | Award / Grant | 12,805 | $0.87 | $11,140 | 86,275 | Aug 25, 2025 |
| SIEGALL CLAY B | — | Award / Grant | 128,054 | $0.87 | $111,407 | 128,054 | Aug 25, 2025 |
| Shukla Abhinav A. | Chief Technical Officer | Award / Grant | 5,122 | $0.87 | $4,456 | 81,258 | Aug 25, 2025 |
| Shukla Abhinav A. | Chief Technical Officer | Tax Withholding | 2,261 | $1.16 | $2,623 | 73,536 | Jan 25, 2025 |
| DeYoung Casi | Chief Business Officer | Tax Withholding | 2,297 | $1.16 | $2,665 | 81,465 | Jan 25, 2025 |
| Pandite Arundathy N. | Chief Medical Officer | Tax Withholding | 3,211 | $1.16 | $3,725 | 206,265 | Jan 25, 2025 |
| Pandite Arundathy N. | Chief Medical Officer | Tax Withholding | 6,884 | $1.19 | $8,192 | 209,476 | Jan 10, 2025 |
| DeYoung Casi | Chief Business Officer | Tax Withholding | 5,727 | $1.19 | $6,815 | 83,762 | Jan 10, 2025 |
| Shukla Abhinav A. | Chief Technical Officer | Tax Withholding | 4,830 | $1.19 | $5,748 | 74,597 | Jan 10, 2025 |
| Green Jeremy | — | Sale | 133,371 | $1.25 | $166,714 | 5,406,353 | Dec 4, 2024 |
| Schreiber Taylor | Chief Executive Officer | Purchase | 36,500 | $1.21 | $44,165 | 71,002 | Oct 7, 2024 |
| Brous Tyler | — | Purchase | 3,000 | $3.90 | $11,700 | 238,088 | Jun 27, 2024 |
| Schreiber Taylor | Chief Executive Officer | Purchase | 14,400 | $3.47 | $49,968 | 34,502 | Jun 26, 2024 |
| Schreiber Taylor | Chief Executive Officer | Option Exercise | 3,050 | $3.57 | $10,889 | 20,102 | Jun 4, 2024 |
| Stout Stephen | See Remarks | Tax Withholding | 967 | $10.42 | $10,076 | 73,470 | May 10, 2024 |
| Redmile Group, LLC | — | Other | 4,425 | — | — | 5,615,489 | Mar 28, 2024 |
| Stout Stephen | See Remarks | Option Exercise | 6,459 | $3.57 | $23,059 | 85,791 | Mar 6, 2024 |
| Pandite Arundathy N. | Chief Medical Officer | Tax Withholding | 2,920 | $9.99 | $29,171 | 216,360 | Jan 30, 2024 |
| Stout Stephen | See Remarks | Tax Withholding | 593 | $9.99 | $5,924 | 79,332 | Jan 30, 2024 |
| Shukla Abhinav A. | Chief Technical Officer | Tax Withholding | 2,290 | $9.99 | $22,877 | 79,427 | Jan 30, 2024 |
| DeYoung Casi | Chief Business Officer | Tax Withholding | 2,008 | $9.99 | $20,060 | 89,489 | Jan 30, 2024 |
| Shukla Abhinav A. | Chief Technical Officer | Award / Grant | 33,425 | — | — | 81,717 | Jan 10, 2024 |
| Stout Stephen | See Remarks | Award / Grant | 49,050 | — | — | 79,925 | Jan 10, 2024 |
| DeYoung Casi | Chief Business Officer | Award / Grant | 46,200 | — | — | 93,080 | Jan 10, 2024 |
| Neill Andrew R | Chief Financial Officer | Sale | 25,000 | $10.00 | $250,000 | 173,446 | Jan 10, 2024 |
| Pandite Arundathy N. | Chief Medical Officer | Tax Withholding | 2,987 | $10.09 | $30,139 | 219,280 | Jan 10, 2024 |
| Stout Stephen | See Remarks | Award / Grant | 15,900 | — | — | 30,875 | May 10, 2023 |
| Neill Andrew R | Chief Financial Officer | Award / Grant | 34,925 | — | — | 144,416 | Jan 25, 2023 |
| Thomson Erin Ator | General Counsel | Award / Grant | 24,125 | — | — | 103,209 | Jan 25, 2023 |
| Shukla Abhinav A. | Chief Technical Officer | Award / Grant | 26,100 | — | — | 47,092 | Jan 25, 2023 |
| Pandite Arundathy N. | Chief Medical Officer | Award / Grant | 37,875 | — | — | 175,792 | Jan 25, 2023 |
| DeYoung Casi | Chief Business Officer | Award / Grant | 27,100 | — | — | 46,880 | Jan 25, 2023 |
| DeYoung Casi | Chief Business Officer | Tax Withholding | 1,583 | $3.03 | $4,796 | 19,780 | Jan 10, 2023 |
| Pandite Arundathy N. | Chief Medical Officer | Tax Withholding | 2,987 | $3.03 | $9,051 | 137,917 | Jan 10, 2023 |
| Shukla Abhinav A. | Chief Technical Officer | Tax Withholding | 1,933 | $3.03 | $5,857 | 20,992 | Jan 10, 2023 |
| Golumbeski George | — | Purchase | 28,330 | $3.63 | $102,838 | 54,613 | Apr 26, 2022 |
| Golumbeski George | — | Purchase | 26,049 | $3.69 | $96,121 | 26,049 | Apr 22, 2022 |
| Schreiber Taylor | Chief Executive Officer | Option Exercise | 3,926 | $4.67 | $18,334 | 17,052 | Jan 28, 2022 |
| Brous Tyler | — | Purchase | 2,500 | $7.16 | $17,900 | 224,172 | Jan 19, 2022 |
| DeYoung Casi | Chief Business Officer | Award / Grant | 21,363 | — | — | 21,363 | Jan 10, 2022 |
| Pandite Arundathy N. | Chief Medical Officer | Award / Grant | 34,738 | — | — | 140,904 | Jan 10, 2022 |
| Neill Andrew R | Chief Financial Officer | Award / Grant | 33,325 | — | — | 109,491 | Jan 10, 2022 |
| Thomson Erin Ator | General Counsel | Option Exercise | 10,000 | $2.95 | $29,500 | 79,084 | Jan 10, 2022 |
| Neill Andrew R | Chief Financial Officer | Option Exercise | 20,000 | $2.95 | $59,000 | 76,166 | Nov 11, 2021 |
| Schreiber Taylor | Chief Executive Officer | Option Exercise | 3,926 | $4.67 | $18,334 | 13,126 | Nov 10, 2021 |
| Thomson Erin Ator | General Counsel | Sale | 33,000 | $19.50 | $643,500 | 46,259 | Oct 19, 2021 |