SABS
SAB Biotherapeutics Inc
NASDAQ: SABS · HEALTHCARE · BIOTECHNOLOGY
$3.20
+4.23% today
Updated 2026-10-28
Market cap
$258.40M
P/E ratio
—
P/S ratio
2.96x
EPS (TTM)
$-1.29
Dividend yield
—
52W range
$2 – $5
Volume
0.6M
SAB Biotherapeutics Inc (SABS) Insider transactions
Net insider activity
Net buying (48,920,920 shares)
Buy transactions
83
Sell transactions
17
All transactions
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-09-17 | KROPOTOVA, ALEXANDRA | CHIEF MEDICAL OFFICER | Sale | 473 | — | — |
| 2026-06-25 | KROPOTOVA, ALEXANDRA | CHIEF MEDICAL OFFICER | Sale | 988 | — | — |
| 2026-03-24 | KROPOTOVA, ALEXANDRA | CHIEF MEDICAL OFFICER | Sale | 988 | — | — |
| 2026-02-03 | TO, LUCY | See Remarks | Buy | 2,400,000 | — | — |
| 2026-02-03 | SULLIVAN, EDDIE JOE | Director, PRESIDENT | Buy | 3,000,000 | — | — |
| 2026-02-03 | REICH, SAMUEL J | Director, CEO | Buy | 4,800,000 | — | — |
| 2026-02-03 | KROPOTOVA, ALEXANDRA | CHIEF MEDICAL OFFICER | Buy | 2,400,000 | — | — |
| 2026-02-03 | BAUSCH, CHRISTOPH LAWRENCE | CHIEF OPERATING OFFICER | Buy | 1,800,000 | — | — |
| 2026-01-05 | ZACCARDELLI, DAVID | Director | Buy | 240,000 | — | — |
| 2026-01-05 | JAIN, RITA | Director | Buy | 240,000 | — | — |
| 2025-12-16 | SKYLER, JAY S | Director | Buy | 150,000 | — | — |
| 2025-12-16 | POLVINO, WILLIAM JAMES | Director | Buy | 150,000 | — | — |
| 2025-12-16 | LUCERA, ERICK | Director | Buy | 150,000 | — | — |
| 2025-12-16 | LINK, DAVID | Director | Buy | 150,000 | — | — |
| 2025-12-16 | GIBERSON, SCOTT | Director | Buy | 150,000 | — | — |
| 2025-12-16 | ELLIAS, HELEN K. | Director | Buy | 150,000 | — | — |
| 2025-12-11 | KROPOTOVA, ALEXANDRA | CHIEF MEDICAL OFFICER | Sale | 988 | — | — |
| 2025-09-29 | SESSA, CAPITAL (MASTER), L.P. | Director | Sale | 17,400 | — | — |
| 2025-09-29 | SESSA, CAPITAL (MASTER), L.P. | Director | Buy | 1,740,000 | $1.75 | $3.04M |
| 2025-09-29 | MOIN, ANDREW | Director | Sale | 17,400 | — | — |
| 2025-09-29 | MOIN, ANDREW | Director | Buy | 1,740,000 | $1.75 | $3.04M |
| 2025-09-19 | KROPOTOVA, ALEXANDRA | CHIEF MEDICAL OFFICER | Sale | 1,977 | — | — |
| 2025-08-26 | TO, LUCY | See Remarks | Buy | 1,200,000 | — | — |
| 2025-08-26 | SULLIVAN, EDDIE JOE | Director, PRESIDENT | Buy | 3,000,000 | — | — |
| 2025-08-26 | REICH, SAMUEL J | Director, CEO & EXECUTIVE CHAIRMAN | Buy | 4,800,000 | — | — |
| 2025-08-26 | KROPOTOVA, ALEXANDRA | CHIEF MEDICAL OFFICER | Buy | 2,400,000 | — | — |
| 2025-08-26 | BAUSCH, CHRISTOPH LAWRENCE | CHIEF OPERATING OFFICER | Buy | 600,000 | — | — |
| 2025-07-22 | SESSA, CAPITAL (MASTER), L.P. | Director | Buy | 228,500 | — | — |
| 2025-07-22 | SESSA, CAPITAL (MASTER), L.P. | Director | Buy | 114,250 | — | — |
| 2025-07-22 | SESSA, CAPITAL (MASTER), L.P. | Director | Buy | 228,500 | — | — |
| 2025-07-22 | MOIN, ANDREW | Director | Buy | 228,500 | — | — |
| 2025-07-22 | MOIN, ANDREW | Director | Buy | 114,250 | — | — |
| 2025-07-22 | MOIN, ANDREW | Director | Buy | 228,500 | — | — |
| 2025-03-27 | KROPOTOVA, ALEXANDRA | CHIEF MEDICAL OFFICER | Sale | 1,179 | — | — |
| 2024-12-18 | KROPOTOVA, ALEXANDRA | CHIEF MEDICAL OFFICER | Sale | 9,072 | — | — |
| 2024-11-01 | ELLIAS, HELEN K. | Director | Buy | 35,000 | — | — |
| 2024-11-01 | ELLIAS, HELEN K. | Director | Buy | 20,000 | — | — |
| 2024-08-12 | TO, LUCY | See Remarks | Buy | 125,000 | — | — |
| 2024-07-15 | SULLIVAN, EDDIE JOE | Director, PRESIDENT | Buy | 46,528 | — | — |
| 2024-07-15 | SULLIVAN, EDDIE JOE | Director, PRESIDENT | Buy | 4,447 | — | — |
| 2024-07-15 | SPRAGENS, JEFFREY G | Director | Buy | 20,000 | — | — |
| 2024-07-15 | SKYLER, JAY S | Director | Buy | 35,000 | — | — |
| 2024-07-15 | SKYLER, JAY S | Director | Buy | 20,000 | — | — |
| 2024-07-15 | REICH, SAMUEL J | Director, CEO & EXECUTIVE CHAIRMAN | Buy | 35,700 | — | — |
| 2024-07-15 | POLVINO, WILLIAM JAMES | Director | Buy | 20,000 | — | — |
| 2024-07-15 | POLVINO, WILLIAM JAMES | Director | Buy | 13,958 | — | — |
| 2024-07-15 | LUCERA, ERICK | Director | Buy | 20,000 | — | — |
| 2024-07-15 | LINK, DAVID CHARLES | Director | Buy | 20,000 | — | — |
| 2024-07-15 | LINK, DAVID CHARLES | Director | Buy | 9,305 | — | — |
| 2024-07-15 | HAMILTON, CHRISTINE E | Director | Buy | 44,202 | — | — |
| 2024-07-15 | HAMILTON, CHRISTINE E | Director | Buy | 20,000 | — | — |
| 2024-07-15 | HAMILTON, CHRISTINE E | Director | Buy | 5,815 | — | — |
| 2024-07-15 | HAMILTON, CHRISTINE E | Director | Buy | 4,447 | — | — |
| 2024-07-15 | HAMILTON, CHRISTINE E | Director | Buy | 2,326 | — | — |
| 2024-07-15 | GIBERSON, SCOTT | Director | Buy | 20,000 | — | — |
| 2024-02-21 | SULLIVAN, EDDIE JOE | Director, PRESIDENT | Buy | 190,000 | — | — |
| 2024-02-21 | REICH, SAMUEL J | Director, CEO & EXECUTIVE CHAIRMAN | Buy | 434,000 | — | — |
| 2024-02-21 | KROPOTOVA, ALEXANDRA | CHIEF MEDICAL OFFICER | Buy | 140,000 | — | — |
| 2024-02-21 | KING, MICHAEL | CHIEF FINANCIAL OFFICER | Buy | 115,000 | — | — |
| 2024-02-21 | BAUSCH, CHRISTOPH LAWRENCE | CHIEF OPERATING OFFICER | Buy | 140,000 | — | — |
| 2023-12-07 | SULLIVAN, EDDIE JOE | Director, Chief Executive Officer | Buy | 1,740 | $0.88 | $1531.20 |
| 2023-11-30 | KING, MICHAEL | CHIEF FINANCIAL OFFICER | Buy | 5,000 | $0.90 | $4500.00 |
| 2023-11-29 | REICH, SAMUEL J | Director, Executive Chairman | Buy | 11,000 | $0.89 | $9841.70 |
| 2023-11-24 | SESSA, CAPITAL (MASTER), L.P. | Director | Buy | 28,380 | $1,000.00 | $28.38M |
| 2023-11-24 | SESSA, CAPITAL (MASTER), L.P. | Director | Sale | 31,269 | $1,000.00 | $31.27M |
| 2023-11-24 | SESSA, CAPITAL (MASTER), L.P. | Director | Buy | 4,584,571 | — | — |
| 2023-11-24 | MOIN, ANDREW | Director | Buy | 28,380 | $1,000.00 | $28.38M |
| 2023-11-24 | MOIN, ANDREW | Director | Sale | 31,269 | $1,000.00 | $31.27M |
| 2023-11-24 | MOIN, ANDREW | Director | Buy | 4,584,571 | — | — |
| 2023-11-24 | ELLIAS, HELEN K. | Director | Sale | 1,800 | $1,000.00 | $1.80M |
| 2023-11-24 | ELLIAS, HELEN K. | Director | Buy | 2,857,142 | — | — |
| 2023-11-13 | SESSA, CAPITAL (MASTER), L.P. | Director | Sale | 13,269 | — | — |
| 2023-11-13 | SESSA, CAPITAL (MASTER), L.P. | Director | Buy | 13,269 | $1,000.00 | $13.27M |
| 2023-11-13 | MOIN, ANDREW | Director | Buy | 13,269 | $1,000.00 | $13.27M |
| 2023-11-13 | MOIN, ANDREW | Director | Sale | 13,269 | — | — |
| 2023-11-10 | SESSA, CAPITAL (MASTER), L.P. | Director | Buy | 22,115 | — | — |
| 2023-11-10 | SESSA, CAPITAL (MASTER), L.P. | Director | Buy | 8,846 | — | — |
| 2023-11-10 | SESSA, CAPITAL (MASTER), L.P. | Director | Buy | 13,269 | — | — |
| 2023-11-10 | MOIN, ANDREW | Director | Buy | 22,115 | — | — |
| 2023-11-10 | MOIN, ANDREW | Director | Buy | 8,846 | — | — |
| 2023-11-10 | MOIN, ANDREW | Director | Buy | 13,269 | — | — |
| 2023-10-30 | KING, MICHAEL | CHIEF FINANCIAL OFFICER | Buy | 850,000 | — | — |
| 2023-10-23 | SESSA, CAPITAL (MASTER), L.P. | Director | Sale | 16,269 | — | — |
| 2023-10-23 | SESSA, CAPITAL (MASTER), L.P. | Director | Buy | 16,269 | $1,000.00 | $16.27M |
| 2023-10-23 | MOIN, ANDREW | Director | Buy | 16,269 | $1,000.00 | $16.27M |
| 2023-10-23 | MOIN, ANDREW | Director | Sale | 16,269 | — | — |
| 2023-04-03 | LUCERA, ERICK | Director | Buy | 25,000 | — | — |
| 2023-03-14 | SULLIVAN, EDDIE JOE | Director, Chief Executive Officer | Buy | 525,000 | — | — |
| 2023-03-14 | REICH, SAMUEL J | Director, Executive Chairman | Buy | 525,000 | — | — |
| 2023-03-14 | KROPOTOVA, ALEXANDRA | Chief Medical Officer | Buy | 275,000 | — | — |
| 2023-03-14 | BEYER, RUSSELL P | Chief Financial Officer | Buy | 275,000 | — | — |
| 2023-03-14 | BAUSCH, CHRISTOPH LAWRENCE | Chief Operating Officer | Buy | 275,000 | — | — |
| 2023-02-28 | SPRAGENS, JEFFREY G | Director | Buy | 19,936 | — | — |
| 2023-02-28 | REICH, SAMUEL J | Director, Executive Chairman | Sale | 208,600 | — | — |
| 2023-02-28 | REICH, SAMUEL J | Director, Executive Chairman | Buy | 9,968 | — | — |
| 2022-12-07 | SPRAGENS, JEFFREY G | Director | Buy | 82,987 | — | — |
| 2022-12-07 | SPRAGENS, JEFFREY G | Director | Buy | 82,987 | $1.21 | $99999.34 |
| 2022-12-07 | LINK, DAVID CHARLES | Director | Buy | 41,493 | — | — |
| 2022-12-07 | LINK, DAVID CHARLES | Director | Buy | 41,493 | $1.21 | $49999.07 |
| 2022-12-07 | HAMILTON, CHRISTINE E | Director, 10% Owner | Buy | 82,987 | — | — |
Frequently asked questions
Are SABS insiders buying or selling?
Over the transactions on record, SABS insiders have been net buyers, with about $64.34M in stock sold across 17 sales, against 13 open-market purchases.
Does insider selling at SABS mean the stock will fall?
Not by itself. Most executive selling is pre-scheduled through 10b5-1 plans filed months in advance, and insiders sell for diversification, taxes, and liquidity far more often than out of any view on the price. Insider buying is the stronger signal, especially when several insiders buy around the same time, because there is usually only one reason to put personal cash into the stock.
Which SABS insiders are selling the most?
Recent selling is concentrated in a few names. SESSA, CAPITAL (MASTER), L.P. accounts for the largest share on record, with about $31.27M sold. Selling by one or two individuals matters less than broad selling across the whole leadership team, which is the pattern worth watching.