SAB Biotherapeutics, 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 |
|---|---|---|---|---|---|---|---|
| Kropotova Alexandra | CHIEF MEDICAL OFFICER | Tax Withholding | 988 | — | — | 44,284 | Dec 11, 2025 |
| Moin Andrew | — | Option Exercise | 1,740,000 | $1.75 | $3,045,000 | 2,198,457 | Sep 29, 2025 |
| Sessa Capital GP, LLC | — | Option Exercise | 1,740,000 | $1.75 | $3,045,000 | 2,198,457 | Sep 29, 2025 |
| Kropotova Alexandra | CHIEF MEDICAL OFFICER | Tax Withholding | 1,977 | — | — | 45,272 | Sep 19, 2025 |
| Kropotova Alexandra | CHIEF MEDICAL OFFICER | Tax Withholding | 1,179 | — | — | 47,249 | Mar 27, 2025 |
| Kropotova Alexandra | CHIEF MEDICAL OFFICER | Tax Withholding | 9,072 | — | — | 48,428 | Dec 18, 2024 |
| Sullivan Eddie Joe | Chief Executive Officer | Purchase | 1,740 | $0.88 | $1,531 | 5,232,304 | Dec 7, 2023 |
| King Michael | CHIEF FINANCIAL OFFICER | Purchase | 5,000 | $0.90 | $4,500 | 5,000 | Nov 30, 2023 |
| Reich Samuel J | Executive Chairman | Purchase | 11,000 | $0.89 | $9,790 | 219,001 | Nov 29, 2023 |
| Ellias Helen K. | — | Option Exercise | 2,857,142 | — | — | 2,857,142 | Nov 24, 2023 |
| Moin Andrew | — | Option Exercise | 4,584,571 | — | — | 4,584,571 | Nov 24, 2023 |
| Sessa Capital IM GP, LLC | — | Option Exercise | 4,584,571 | — | — | 4,584,571 | Nov 24, 2023 |
| Kropotova Alexandra | Chief Medical Officer | Award / Grant | 275,000 | — | — | 275,000 | Mar 14, 2023 |
| Link David Charles | — | Award / Grant | 41,493 | $1.21 | $50,207 | 57,313 | Dec 7, 2022 |
| Spragens Jeffrey G | — | Award / Grant | 82,987 | $1.21 | $100,414 | 394,989 | Dec 7, 2022 |
| HAMILTON CHRISTINE E | — | Award / Grant | 82,987 | $1.21 | $100,414 | 3,111,334 | Dec 7, 2022 |
| HAMILTON CHRISTINE E | — | Purchase | 10,000 | $0.73 | $7,300 | 4,993,090 | Sep 13, 2022 |
| Sullivan Eddie Joe | CHIEF EXECUTIVE OFFICER | Purchase | 14,000 | $0.74 | $10,360 | 5,230,564 | Sep 7, 2022 |
| HAMILTON CHRISTINE E | — | Gift | 2,000,000 | — | — | 3,083,270 | Jun 7, 2022 |
| Kropotova Alexandra | Chief Medical Officer | Award / Grant | 300,000 | — | — | 300,000 | Jun 6, 2022 |
| Reich Samuel J | Executive Chairman | Other | 2,500,127 | — | — | 547,698 | May 20, 2022 |
| Spragens Jeffrey G | — | Other | 299,002 | — | — | 312,002 | May 20, 2022 |
| Link David Charles | — | Award / Grant | 12,097 | — | — | 12,097 | Oct 22, 2021 |
| Sullivan Eddie Joe | Chief Executive Officer | Award / Grant | 2,800 | $10.07 | $28,196 | 2,800 | Oct 22, 2021 |
| Hamilton Edward D. | — | Award / Grant | 25,000 | $10.08 | $252,000 | 25,000 | Oct 22, 2021 |
| Finnegan Frederick | Chief Business Officer | Award / Grant | 38,596 | — | — | 38,596 | Oct 22, 2021 |
| Luke Thomas Charles | Chief Medical Officer | Award / Grant | 5,428 | — | — | 5,428 | Oct 19, 2021 |
| Reich Samuel J | CEO and CFO | Purchase | 1,000 | $10.11 | $10,110 | 1,000 | Oct 14, 2021 |
| Katz Ilan | — | Purchase | 500 | $10.11 | $5,055 | 1,500 | Oct 13, 2021 |
| HAMILTON CHRISTINE E | — | Award / Grant | 4,974,497 | — | — | 4,974,497 | Oct 12, 2021 |
| Katz Ilan | — | Purchase | 1,000 | $10.09 | $10,090 | 1,000 | Oct 1, 2021 |
| Spragens Jeffrey G | — | Purchase | 13,000 | $10.07 | $130,910 | 13,000 | Oct 1, 2021 |
| Beyer Russell P | Chief Financial Officer | Sale | 278 | $7.90 | $2,196 | — | Sep 29, 2021 |
| Big Cypress Holdings LLC | CEO and CFO | Purchase | 417,200 | $10.00 | $4,172,000 | 3,047,825 | Jan 14, 2021 |
| Katz Ilan | — | Purchase | 417,200 | $10.00 | $4,172,000 | 3,047,825 | Jan 14, 2021 |
| Reich Samuel J | CEO and CFO | Purchase | 417,200 | $10.00 | $4,172,000 | 3,047,825 | Jan 14, 2021 |