SAB Biotherapeutics, Inc.
SABSHealthcare|Biotechnology|US
$3.03
+0.09 (+3.06%)
DCF Value
$0.04
Tangible Book / Share
$2.26
Cash / Share
$1.12
Ownership Breakdown
89.6%
Float
91.0M
Shares Outstanding
81.5M
Float Shares
Major Holders (40)
Combined: 323.4%
Holders of 5%+ from their latest Schedule 13D/13G filing in the last two years. Percentages are as of each filing date.
| Holder | Type | % of Class | Shares | Filed | Filing |
|---|---|---|---|---|---|
| Vivo Opportunity Cayman Fund, L.P. | Partnership | 9.99% | 2,286,301 | Aug 14, 2026 | 13D/G |
| Vivo Opportunity Cayman, LLC | Other | 9.99% | 2,286,301 | Aug 14, 2026 | 13D/G |
| Vivo Opportunity, LLC | Other | 9.99% | 22,637,108 | Aug 14, 2026 | 13D/G |
| Vivo Opportunity Fund Holdings, L.P. | Partnership | 9.99% | 22,637,108 | Aug 14, 2026 | 13D/G |
| Roderick Wong, M.D. | HC, IN | 9.99% | 1,024,335 | Feb 14, 2025 | 13D/G |
| Commodore Capital LP | IA, PN | 9.90% | 8,948,170 | Aug 14, 2026 | 13D/G |
| Commodore Capital Master LP | Partnership | 9.90% | 8,948,170 | Aug 14, 2026 | 13D/G |
| Michael Kramarz | HC, IN | 9.90% | 8,948,170 | Aug 14, 2026 | 13D/G |
| Robert Egen Atkinson | HC, IN | 9.90% | 8,948,170 | Aug 14, 2026 | 13D/G |
| Peter Kolchinsky | HC, IN | 9.90% | 9,609,852 | Aug 10, 2026 | 13D/G |
| Rajeev Shah | HC, IN | 9.90% | 9,609,852 | Aug 10, 2026 | 13D/G |
| RA Capital Healthcare Fund, L.P. | Partnership | 9.90% | 9,609,852 | Aug 10, 2026 | 13D/G |
| RA Capital Management, L.P. | IA, PN | 9.90% | 9,609,852 | Aug 10, 2026 | 13D/G |
| Dmitry Balyasny | HC, IN | 9.45% | 7,225,439 | Aug 14, 2026 | 13D/G |
| Balyasny Asset Management L.P. | IA, PN | 9.45% | 7,225,439 | Aug 14, 2026 | 13D/G |
| Bam GP LLC | HC, OO | 9.45% | 7,225,439 | Aug 14, 2026 | 13D/G |
| Balyasny Asset Management Holdings LP | HC, PN | 9.45% | 7,225,439 | Aug 14, 2026 | 13D/G |
| Dames GP LLC | HC, OO | 9.45% | 7,225,439 | Aug 14, 2026 | 13D/G |
| BVF Partners L P/Il | IA, PN | 9.10% | 4,761,906 | Feb 17, 2026 | 13D/G |
| BVF Inc/Il | Corporation | 9.10% | 4,761,906 | Feb 17, 2026 | 13D/G |
| Lampert Mark N | Individual | 9.10% | 4,761,906 | Feb 17, 2026 | 13D/G |
| Caligan Partners LP | IA, PN | 8.80% | 7,967,207 | Aug 14, 2026 | 13D/G |
| Johnson David Edward | HC, IN | 8.80% | 7,967,207 | Aug 14, 2026 | 13D/G |
| BVF GP Holdings LLC | Other | 8.60% | 4,472,064 | Feb 17, 2026 | 13D/G |
| Adage Capital Management, L.P. | IA, PN | 8.38% | 6,405,553 | Aug 12, 2026 | 13D/G |
| Phillip Gross | HC, IN | 8.38% | 6,405,553 | Aug 12, 2026 | 13D/G |
| Robert Atchinson | HC, IN | 8.38% | 6,405,553 | Aug 12, 2026 | 13D/G |
| Perceptive Life Sciences Master Fund, Ltd. | Corporation | 7.30% | 6,627,501 | Aug 14, 2026 | 13D/G |
| Joseph Edelman | Individual | 7.30% | 6,627,501 | Aug 14, 2026 | 13D/G |
| Perceptive Advisors LLC | Investment adviser | 7.30% | 6,627,501 | Aug 14, 2026 | 13D/G |
| Woodline Partners LP | IA, PN | 6.80% | 5,455,355 | Aug 14, 2026 | 13D/G |
| Israel A. Englander | Individual | 5.10% | 3,432,153 | May 1, 2026 | 13D/G |
| Millennium Management LLC | Other | 5.10% | 3,432,153 | May 1, 2026 | 13D/G |
| Millennium Group Management LLC | Other | 5.10% | 3,432,153 | May 1, 2026 | 13D/G |
| Biotechnology Value Fund L P | Partnership | 5.10% | 2,540,159 | Feb 17, 2026 | 13D/G |
| BVF I GP LLC | Other | 5.10% | 2,540,159 | Feb 17, 2026 | 13D/G |
| Biotechnology Value Fund II LP | Partnership | 3.90% | 1,931,905 | Feb 17, 2026 | 13D/G |
| BVF II GP LLC | Other | 3.90% | 1,931,905 | Feb 17, 2026 | 13D/G |
| RTW Investments, LP | IA, PN | 3.20% | 1,587,302 | Feb 17, 2026 | 13D/G |
| Roderick Wong | HC, IN | 3.20% | 1,587,302 | Feb 17, 2026 | 13D/G |
Insider Trades (100)
Last 4 quarters: 15,780,000 acquired · 3,437 disposed
| Insider | Position | Date | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Kropotova Alexandra | CHIEF MEDICAL OFFICER | Sep 17, 2026 | TAX W/H | 473 | — | — | Form 4 |
| Kropotova Alexandra | CHIEF MEDICAL OFFICER | Jun 25, 2026 | TAX W/H | 988 | — | — | Form 4 |
| Kropotova Alexandra | CHIEF MEDICAL OFFICER | Mar 24, 2026 | TAX W/H | 988 | — | — | Form 4 |
| Sullivan Eddie Joe | director, officer: PRESIDENT | Feb 3, 2026 | AWARD | 3,000,000 | $4.45 | $13.3M | Form 4 |
| Reich Samuel J | director, officer: CEO | Feb 3, 2026 | AWARD | 4,800,000 | $4.45 | $21.4M | Form 4 |
| Bausch Christoph Lawrence | CHIEF OPERATING OFFICER | Feb 3, 2026 | AWARD | 1,800,000 | $4.45 | $8.0M | Form 4 |
| Kropotova Alexandra | CHIEF MEDICAL OFFICER | Feb 3, 2026 | AWARD | 2,400,000 | $4.45 | $10.7M | Form 4 |
| To Lucy | See Remarks | Feb 3, 2026 | AWARD | 2,400,000 | $4.45 | $10.7M | Form 4 |
| Jain Rita | director | Jan 5, 2026 | AWARD | 240,000 | $3.74 | $897.6K | Form 4 |
| ZACCARDELLI DAVID | director | Jan 5, 2026 | AWARD | 240,000 | $3.74 | $897.6K | Form 4 |
| Jain Rita | Jan 5, 2026 | OTHER | 0 | — | — | Form 4 | |
| ZACCARDELLI DAVID | Jan 5, 2026 | OTHER | 0 | — | — | Form 4 | |
| SKYLER JAY S | director | Dec 16, 2025 | AWARD | 150,000 | $3.99 | $598.5K | Form 4 |
| Polvino William James | director | Dec 16, 2025 | AWARD | 150,000 | $3.99 | $598.5K | Form 4 |
| Lucera Erick | director | Dec 16, 2025 | AWARD | 150,000 | $3.99 | $598.5K | Form 4 |
| Ellias Helen K. | director | Dec 16, 2025 | AWARD | 150,000 | $3.99 | $598.5K | Form 4 |
| Giberson Scott | director | Dec 16, 2025 | AWARD | 150,000 | $3.99 | $598.5K | Form 4 |
| Link David | director | Dec 16, 2025 | AWARD | 150,000 | $3.99 | $598.5K | Form 4 |
| Kropotova Alexandra | CHIEF MEDICAL OFFICER | Dec 11, 2025 | TAX W/H | 988 | — | — | Form 4 |
| Moin Andrew | director | Sep 29, 2025 | OPTION EX. | 1,740,000 | $1.75 | $3.0M | Form 4 |
| Moin Andrew | director | Sep 29, 2025 | OPTION EX. | 17,400 | $1.75 | $30.4K | Form 4 |
| Sessa Capital (Master), L.P. | director | Sep 29, 2025 | OPTION EX. | 1,740,000 | $1.75 | $3.0M | Form 4 |
| Sessa Capital (Master), L.P. | director | Sep 29, 2025 | OPTION EX. | 17,400 | $1.75 | $30.4K | Form 4 |
| Kropotova Alexandra | CHIEF MEDICAL OFFICER | Sep 19, 2025 | TAX W/H | 1,977 | — | — | Form 4 |
| Reich Samuel J | director, officer: CEO & EXECUTIVE CHAIRMAN | Aug 26, 2025 | AWARD | 4,800,000 | $2.17 | $10.4M | Form 4 |
| To Lucy | See Remarks | Aug 26, 2025 | AWARD | 1,200,000 | $2.17 | $2.6M | Form 4 |
| Kropotova Alexandra | CHIEF MEDICAL OFFICER | Aug 26, 2025 | AWARD | 2,400,000 | $2.17 | $5.2M | Form 4 |
| Bausch Christoph Lawrence | CHIEF OPERATING OFFICER | Aug 26, 2025 | AWARD | 600,000 | $2.17 | $1.3M | Form 4 |
| Sullivan Eddie Joe | director, officer: PRESIDENT | Aug 26, 2025 | AWARD | 3,000,000 | $2.17 | $6.5M | Form 4 |
| Sessa Capital (Master), L.P. | director | Jul 22, 2025 | AWARD | 228,500 | $175.00 | $40.0M | Form 4 |
| Sessa Capital (Master), L.P. | director | Jul 22, 2025 | AWARD | 228,500 | $1.75 | $399.9K | Form 4 |
| Sessa Capital (Master), L.P. | director | Jul 22, 2025 | AWARD | 114,250 | $218.75 | $25.0M | Form 4 |
| Moin Andrew | director | Jul 22, 2025 | AWARD | 228,500 | $175.00 | $40.0M | Form 4 |
| Moin Andrew | director | Jul 22, 2025 | AWARD | 228,500 | $1.75 | $399.9K | Form 4 |
| Moin Andrew | director | Jul 22, 2025 | AWARD | 114,250 | $218.75 | $25.0M | Form 4 |
| Kropotova Alexandra | CHIEF MEDICAL OFFICER | Mar 27, 2025 | TAX W/H | 1,179 | — | — | Form 4 |
| Kropotova Alexandra | CHIEF MEDICAL OFFICER | Dec 18, 2024 | TAX W/H | 9,072 | — | — | Form 4 |
| Ellias Helen K. | director | Nov 1, 2024 | AWARD | 35,000 | $3.88 | $135.8K | Form 4 |
| Ellias Helen K. | director | Nov 1, 2024 | AWARD | 20,000 | $3.88 | $77.6K | Form 4 |
| To Lucy | See Remarks | Aug 12, 2024 | AWARD | 125,000 | $2.35 | $293.8K | Form 4 |
| To Lucy | Jul 26, 2024 | OTHER | 0 | — | — | Form 4 | |
| Spragens Jeffrey G | director | Jul 15, 2024 | AWARD | 20,000 | $2.90 | $58.0K | Form 4 |
| Polvino William James | director | Jul 15, 2024 | AWARD | 20,000 | $2.90 | $58.0K | Form 4 |
| Polvino William James | director | Jul 15, 2024 | AWARD | 13,958 | $2.90 | $40.5K | Form 4 |
| SKYLER JAY S | director | Jul 15, 2024 | AWARD | 35,000 | $2.90 | $101.5K | Form 4 |
| SKYLER JAY S | director | Jul 15, 2024 | AWARD | 20,000 | $2.90 | $58.0K | Form 4 |
| Sullivan Eddie Joe | director, officer: PRESIDENT | Jul 15, 2024 | AWARD | 46,528 | $5.40 | $251.3K | Form 4 |
| Sullivan Eddie Joe | director, officer: PRESIDENT | Jul 15, 2024 | AWARD | 4,447 | $2.90 | $12.9K | Form 4 |
| Lucera Erick | director | Jul 15, 2024 | AWARD | 20,000 | $2.90 | $58.0K | Form 4 |
| HAMILTON CHRISTINE E | director | Jul 15, 2024 | AWARD | 44,202 | $5.40 | $238.7K | Form 4 |
| HAMILTON CHRISTINE E | director | Jul 15, 2024 | AWARD | 20,000 | $2.90 | $58.0K | Form 4 |
| HAMILTON CHRISTINE E | director | Jul 15, 2024 | AWARD | 5,815 | $5.40 | $31.4K | Form 4 |
| HAMILTON CHRISTINE E | director | Jul 15, 2024 | AWARD | 4,447 | $2.90 | $12.9K | Form 4 |
| HAMILTON CHRISTINE E | director | Jul 15, 2024 | AWARD | 2,326 | $2.90 | $6.7K | Form 4 |
| Link David Charles | director | Jul 15, 2024 | AWARD | 20,000 | $2.90 | $58.0K | Form 4 |
| Link David Charles | director | Jul 15, 2024 | AWARD | 9,305 | $2.90 | $27.0K | Form 4 |
| Reich Samuel J | director, officer: CEO & EXECUTIVE CHAIRMAN | Jul 15, 2024 | AWARD | 35,700 | $2.90 | $103.5K | Form 4 |
| Giberson Scott | director | Jul 15, 2024 | AWARD | 20,000 | $2.90 | $58.0K | Form 4 |
| Conley Mark William | See Remarks | Jun 4, 2024 | DISPOSED | 25,000 | $4.79 | $119.8K | Form 4 |
| SKYLER JAY S | May 3, 2024 | OTHER | 0 | — | — | Form 4 | |
| Kropotova Alexandra | CHIEF MEDICAL OFFICER | Feb 21, 2024 | AWARD | 140,000 | $5.17 | $723.8K | Form 4 |
| Sullivan Eddie Joe | director, officer: PRESIDENT | Feb 21, 2024 | AWARD | 190,000 | $5.17 | $982.3K | Form 4 |
| Bausch Christoph Lawrence | CHIEF OPERATING OFFICER | Feb 21, 2024 | AWARD | 140,000 | $5.17 | $723.8K | Form 4 |
| King Michael | CHIEF FINANCIAL OFFICER | Feb 21, 2024 | AWARD | 115,000 | $5.17 | $594.5K | Form 4 |
| Reich Samuel J | director, officer: CEO & EXECUTIVE CHAIRMAN | Feb 21, 2024 | AWARD | 434,000 | $5.17 | $2.2M | Form 4 |
| Sullivan Eddie Joe | director, officer: Chief Executive Officer | Dec 7, 2023 | BUY | 1,740 | $0.88 | $1.5K | Form 4 |
| King Michael | CHIEF FINANCIAL OFFICER | Nov 30, 2023 | BUY | 5,000 | $0.90 | $4.5K | Form 4 |
| Reich Samuel J | director, officer: Executive Chairman | Nov 29, 2023 | BUY | 11,000 | $0.89 | $9.8K | Form 4 |
| Sessa Capital (Master), L.P. | director | Nov 24, 2023 | OPTION EX. | 4,584,571 | $0.00 | $458.46 | Form 4 |
| Sessa Capital (Master), L.P. | director | Nov 24, 2023 | OPTION EX. | 28,380 | $0.63 | $17.9K | Form 4 |
| Sessa Capital (Master), L.P. | director | Nov 24, 2023 | OPTION EX. | 31,269 | $0.63 | $19.7K | Form 4 |
| Moin Andrew | director | Nov 24, 2023 | OPTION EX. | 4,584,571 | $0.00 | $458.46 | Form 4 |
| Moin Andrew | director | Nov 24, 2023 | OPTION EX. | 28,380 | $0.63 | $17.9K | Form 4 |
| Moin Andrew | director | Nov 24, 2023 | OPTION EX. | 31,269 | $0.63 | $19.7K | Form 4 |
| Ellias Helen K. | director | Nov 24, 2023 | OPTION EX. | 2,857,142 | $0.00 | $285.71 | Form 4 |
| Ellias Helen K. | director | Nov 24, 2023 | OPTION EX. | 1,800 | $0.63 | $1.1K | Form 4 |
| Ellias Helen K. | director | Nov 14, 2023 | OTHER | 1,200 | $1000.00 | $1.2M | Form 4 |
| Ellias Helen K. | director | Nov 14, 2023 | OTHER | 3,000 | $1000.00 | $3.0M | Form 4 |
| Ellias Helen K. | director | Nov 14, 2023 | OTHER | 2,857,142 | $0.63 | $1.8M | Form 4 |
| Moin Andrew | director | Nov 13, 2023 | AWARD | 13,269 | $0.63 | $8.4K | Form 4 |
| Moin Andrew | director | Nov 10, 2023 | AWARD | 22,115 | $1000.00 | $22.1M | Form 4 |
| Moin Andrew | director | Nov 10, 2023 | AWARD | 8,846 | $1000.00 | $8.8M | Form 4 |
| Moin Andrew | director | Nov 13, 2023 | AWARD | 13,269 | $0.63 | $8.4K | Form 4 |
| Moin Andrew | director | Nov 10, 2023 | AWARD | 13,269 | $1000.00 | $13.3M | Form 4 |
| Moin Andrew | director | Nov 13, 2023 | OPTION EX. | 13,269 | $1000.00 | $13.3M | Form 4 |
| Sessa Capital (Master), L.P. | director | Nov 10, 2023 | AWARD | 22,115 | $1000.00 | $22.1M | Form 4 |
| Sessa Capital (Master), L.P. | director | Nov 13, 2023 | AWARD | 13,269 | $0.63 | $8.4K | Form 4 |
| Sessa Capital (Master), L.P. | director | Nov 10, 2023 | AWARD | 8,846 | $1000.00 | $8.8M | Form 4 |
| Sessa Capital (Master), L.P. | director | Nov 10, 2023 | AWARD | 13,269 | $1000.00 | $13.3M | Form 4 |
| Sessa Capital (Master), L.P. | director | Nov 13, 2023 | OPTION EX. | 13,269 | $1000.00 | $13.3M | Form 4 |
| King Michael | CHIEF FINANCIAL OFFICER | Oct 30, 2023 | AWARD | 850,000 | $0.80 | $678.3K | Form 4 |
| King Michael | Oct 30, 2023 | OTHER | 0 | — | — | Form 4 | |
| Sessa Capital (Master), L.P. | director | Oct 23, 2023 | AWARD | 16,269 | $0.63 | $10.2K | Form 4 |
| Sessa Capital (Master), L.P. | director | Oct 23, 2023 | OPTION EX. | 16,269 | $1000.00 | $16.3M | Form 4 |
| Moin Andrew | director | Oct 23, 2023 | AWARD | 16,269 | $0.63 | $10.2K | Form 4 |
| Moin Andrew | director | Oct 23, 2023 | OPTION EX. | 16,269 | $1000.00 | $16.3M | Form 4 |
| Sessa Capital (Master), L.P. | director | Oct 2, 2023 | DISPOSED | 30,000 | $1000.00 | $30.0M | Form 4 |
| Sessa Capital (Master), L.P. | director | Oct 2, 2023 | DISPOSED | 16,269 | $1000.00 | $16.3M | Form 4 |
| Sessa Capital (Master), L.P. | director | Oct 2, 2023 | DISPOSED | 12,000 | $1000.00 | $12.0M | Form 4 |
| Sessa Capital (Master), L.P. | director | Oct 2, 2023 | DISPOSED | 2,747,097 | $0.63 | $1.7M | Form 4 |