SABSNasdaqBiological Products, (No Diagnostic Substances)Fiscal year ends December 31Also trades as SABSW
SAB Biotherapeutics, Inc.
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 6, 2026
$2.60+0.07 (+2.77%)
Close on Oct 19, 2026
- Market cap
- $207.36M
- P/E (TTM)
- –
- Dividend yield
- –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
68M
Shares held, 13F filers
Institutional holders
87
32 new, 21 sold out
Net institutional buying
-1M
In Q2 2026
Insider trades, 12 months
0 buys · 0 sales
Open-market trades only
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| RA Capital Healthcare Fund, L.P. | 9,609,852 | 9.90% | 13D (active) amendment | Aug 6, 2026 |
| Michael Kramarz | 8,948,170 | 9.90% | 13G (passive) amendment | Jun 30, 2026 |
| Caligan Partners LP | 7,967,207 | 8.80% | 13G (passive) amendment | Jun 30, 2026 |
| Johnson David Edward | 7,967,207 | 10.40% | 13G (passive) | Mar 31, 2026 |
| Peter Kolchinsky | 7,311,225 | 9.90% | 13D (active) amendment | Mar 19, 2026 |
| Dames GP LLC | 7,225,439 | 9.45% | 13G (passive) amendment | Jun 30, 2026 |
| Perceptive Advisors LLC | 6,627,501 | 7.30% | 13G (passive) amendment | Jun 30, 2026 |
| Perceptive Life Sciences Master Fund, Ltd. | 6,431,743 | 8.40% | 13G (passive) amendment | Mar 31, 2026 |
| Phillip Gross | 6,405,553 | 8.38% | 13G (passive) | Jun 30, 2026 |
| Woodline Partners LP | 5,455,355 | 6.80% | 13G (passive) amendment | Jun 30, 2026 |
| RA Capital Management, L.P. | 5,166,424 | 9.90% | 13D (active) amendment | Mar 9, 2026 |
| Bam Gp LLC | 5,089,939 | 9.99% | 13G (passive) | Mar 31, 2026 |
| Lampert Mark N | 4,761,906 | 9.10% | 13G (passive) amendment | Dec 31, 2025 |
| Commodore Capital LP | 4,522,977 | 9.90% | 13G (passive) | Sep 26, 2025 |
| Joseph Edelman | 3,471,861 | 7.30% | 13G (passive) | Jan 14, 2026 |
| Millennium Management LLC | 3,432,153 | 5.10% | 13G (passive) | Apr 24, 2026 |
| Vivo Opportunity Fund Holdings, L.P. | 22,637,108 | 9.99% | 13G (passive) amendment | Jun 30, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of SABS | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| Caligan Partners LP | 7,967,207 | – | $31.07M | – | 1.46% |
| Vivo Capital, LLC | 7,299,909 | – | $28.47M | −4,120,091 | 2.60% |
| Perceptive Advisors LLC | 6,627,501 | – | $25.85M | +195,758 | 0.39% |
| Adage Capital Partners Gp, L.L.C. | 6,405,553 | – | $24.98M | +3,000,000 | 0.04% |
| Ra Capital Management, L.P. | 4,401,500 | – | $17.17M | – | 0.15% |
| Balyasny Asset Management L.P. | 3,760,439 | – | $14.67M | – | 0.02% |
| BlackRock, Inc. | 3,066,016 | – | $11.96M | +2,764,690 | 0.00% |
| Vanguard Capital Management LLC | 2,972,929 | – | $11.59M | +479,192 | 0.00% |
| Commodore Capital LP | 2,870,000 | – | $11.19M | −1,531,500 | 0.67% |
| Millennium Management LLC | 2,749,087 | – | $10.72M | −283,610 | 0.00% |
| Spruce Street Capital LP | 2,198,502 | – | $8.57M | – | 1.68% |
| Sessa Capital IM, L.P. | 2,198,457 | – | $8.57M | – | 0.14% |
| Affinity Asset Advisors, LLC | 1,525,000 | – | $5.95M | +950,000 | 0.27% |
| Boothbay Fund Management, LLC | 1,481,660 | – | $5.78M | – | 0.08% |
| Geode Capital Management, LLC | 1,277,185 | – | $4.98M | +975,149 | 0.00% |
| Woodline Partners LP | 1,180,355 | – | $4.60M | −1,671,436 | 0.01% |
| Ensign Peak Advisors, Inc | 1,172,641 | – | $4.57M | −202,969 | 0.01% |
| Propel Bio Management, LLC | 1,076,578 | – | $4.20M | +63,788 | 2.20% |
| Soleus Capital Management, L.P. | 900,000 | – | $3.51M | −150,000 | 0.12% |
| Seven Fleet Capital Management LP | 736,077 | – | $2.87M | +636,077 | 0.47% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|
| Q2 2026 | 87 | 68M | 32 / 25 | 16 / 21 | 13M | 14M |
| Q1 2026 | 76 | 70M | 34 / 24 | 7 / 5 | 36M | 1M |
| Q4 2025 | 48 | 36M | 21 / 11 | 4 / 7 | 10M | 2M |
| Q3 2025 | 34 | 28M | 13 / 10 | 2 / 4 | 26M | 0M |
| Q2 2025 | 25 | 2M | 3 / 6 | 4 / 4 | 0M | 0M |
| Q1 2025 | 26 | 2M | 4 / 6 | 7 / 3 | 0M | 1M |
| Q4 2024 | 25 | 3M | 5 / 5 | 6 / 5 | 0M | 1M |
| Q3 2024 | 25 | 3M | 7 / 1 | 4 / 2 | 0M | 0M |
| Q2 2024 | 22 | 3M | 2 / 5 | 4 / 4 | 0M | 0M |
| Q1 2024 | 24 | 3M | 22 / 0 | 2 / 1 | 3M | 8M |
| Q4 2023 | 3 | 9M | 3 / 0 | 0 / 0 | 9M | 0M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of SABS | Value | % of fund | As of |
|---|---|---|---|---|---|
| Vanguard Total Stock Market Index Fund | 2,259,593 | – | $8.81M | 0.00% | Jun 30, 2026 |
| iShares Russell 2000 ETF | 1,053,123 | – | $4.11M | 0.00% | Jun 30, 2026 |
| Vanguard Extended Market Index Fund | 647,886 | – | $2.53M | 0.00% | Jun 30, 2026 |
| Fidelity Small Cap Index Fund | 473,873 | – | $1.69M | 0.00% | Jul 31, 2026 |
| iShares Russell 2000 Value ETF | 384,848 | – | $1.50M | 0.01% | Jun 30, 2026 |
| iShares Micro-Cap ETF | 145,535 | – | $567.59K | 0.04% | Jun 30, 2026 |
| Fidelity Extended Market Index Fund | 136,173 | – | $490.22K | 0.00% | May 31, 2026 |
| Schwab Small-Cap Index Fund | 105,682 | – | $377.28K | 0.00% | Jul 31, 2026 |
| Simplify Propel Opportunities ETF | 104,849 | – | $408.91K | 0.53% | Jun 30, 2026 |
| Master Small Cap Index Series | 81,175 | – | $316.58K | 0.01% | Jun 30, 2026 |
| Avantis U.S. Small Cap Equity ETF | 67,679 | – | $243.64K | 0.01% | May 31, 2026 |
| Fidelity Small Cap Value Index Fund | 60,739 | – | $236.88K | 0.01% | Jun 30, 2026 |
| Nuveen Small Cap Blend Index Fund | 58,398 | – | $208.48K | 0.01% | Jul 31, 2026 |
| Fidelity Total Market Index Fund | 54,090 | – | $194.72K | 0.00% | May 31, 2026 |
| EQ/2000 Managed Volatility Portfolio | 46,064 | – | $179.65K | 0.00% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | Latest filing |
|---|---|---|---|
| Samuel J. Reich | CEO, Director | 766,699 | Feb 5, 2026 |
| Eddie Joe Sullivan | PRESIDENT, Director | 5,232,304 | Feb 5, 2026 |
| Alexandra Kropotova | CHIEF MEDICAL OFFICER | 41,853 | Sep 18, 2026 |
| Lucy To | See Remarks | – | Feb 5, 2026 |
| Christoph Lawrence Bausch | CHIEF OPERATING OFFICER | – | Feb 5, 2026 |
| Rita Jain | Director | – | Jan 7, 2026 |
| David Zaccardelli | Director | – | Jan 7, 2026 |
| David Link | Director | – | Dec 18, 2025 |
| Erick Lucera | Director | – | Dec 18, 2025 |
| Jay S. Skyler | Director | – | Dec 18, 2025 |
| William James Polvino | Director | – | Dec 18, 2025 |
| Scott Giberson | Director | – | Dec 18, 2025 |
| Helen K. Ellias | Director | 2,857,142 | Dec 18, 2025 |
| John Petry | Director | – | Oct 1, 2025 |
| Sessa Capital GP, LLC | Director | 2,198,457 | Oct 1, 2025 |
| Andrew Moin | Director | 2,198,457 | Oct 1, 2025 |
| Sessa Capital IM, L.P. | Director | – | Oct 1, 2025 |
| Sessa Capital IM GP, LLC | Director | 4,584,571 | Oct 1, 2025 |
| Sessa Capital (Master), L.P. | Director | – | Oct 1, 2025 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Alexandra Kropotova CHIEF MEDICAL OFFICER | Sep 17, 2026 | Tax withholding | −473 | – | – | 41,853 |
| Alexandra Kropotova CHIEF MEDICAL OFFICER | Jun 25, 2026 | Tax withholding | −988 | – | – | 42,308 |
| Alexandra Kropotova CHIEF MEDICAL OFFICER | Mar 24, 2026 | Tax withholding | −988 | – | – | 43,296 |
| Alexandra Kropotova CHIEF MEDICAL OFFICER | Dec 11, 2025 | Tax withholding | −988 | – | – | 44,284 |
| Sessa Capital GP, LLC Director | Sep 29, 2025 | Option exercise | +1,740,000 | $1.75 | $3.05M | 2,198,457 |
| Andrew Moin Director | Sep 29, 2025 | Option exercise | +1,740,000 | $1.75 | $3.05M | 2,198,457 |
| Alexandra Kropotova CHIEF MEDICAL OFFICER | Sep 19, 2025 | Tax withholding | −1,977 | – | – | 45,272 |
| Alexandra Kropotova CHIEF MEDICAL OFFICER | Mar 27, 2025 | Tax withholding | −1,179 | – | – | 47,249 |
| Alexandra Kropotova CHIEF MEDICAL OFFICER | Dec 18, 2024 | Tax withholding | −9,072 | – | – | 48,428 |
| Eddie Joe Sullivan Chief Executive Officer, Director | Dec 7, 2023 | Buy | +1,740 | $0.88 | $1.53K | 5,232,304 |
| Michael King CHIEF FINANCIAL OFFICER | Nov 30, 2023 | Buy | +5,000 | $0.90 | $4.50K | 5,000 |
| Samuel J. Reich Executive Chairman, Director | Nov 29, 2023 | Buy | +11,000 | $0.89 | $9.79K | 219,001 |
| Sessa Capital IM GP, LLC Director | Nov 24, 2023 | Option exercise | +4,584,571 | – | – | 4,584,571 |
| Helen K. Ellias Director | Nov 24, 2023 | Option exercise | +2,857,142 | – | – | 2,857,142 |
| Andrew Moin Director | Nov 24, 2023 | Option exercise | +4,584,571 | – | – | 4,584,571 |
| Alexandra Kropotova Chief Medical Officer | Mar 14, 2023 | Award | +275,000 | – | – | 275,000 |
| David Charles Link Director | Dec 7, 2022 | Award | +41,493 | $1.21 | $50.21K | 57,313 |
| Jeffrey G. Spragens Director | Dec 7, 2022 | Award | +82,987 | $1.21 | $100.41K | 394,989 |
| Christine E. Hamilton Director, 10% owner | Dec 7, 2022 | Award | +82,987 | $1.21 | $100.41K | 3,111,334 |
| Christine E. Hamilton Director, 10% owner | Sep 13, 2022 | Buy | +10,000 | $0.73 | $7.30K | 4,993,090 |
| Eddie Joe Sullivan CHIEF EXECUTIVE OFFICER, Director, 10% owner | Sep 7, 2022 | Buy | +14,000 | $0.74 | $10.36K | 5,230,564 |
| Christine E. Hamilton Director, 10% owner | Jun 7, 2022 | Gift | −2,000,000 | – | – | 3,083,270 |
| Alexandra Kropotova Chief Medical Officer | Jun 6, 2022 | Award | +300,000 | – | – | 300,000 |
| Jeffrey G. Spragens Director | May 20, 2022 | Other | +299,002 | – | – | 312,002 |
| Samuel J. Reich Executive Chairman, Director | May 20, 2022 | Other | −2,500,127 | – | – | 547,698 |
| Samuel J. Reich Executive Chairman, Director | May 20, 2022 | Other | +207,001 | – | – | 208,001 |
| Russell P. Beyer Chief Financial Officer | Oct 26, 2021 | Sale | −278 | $7.90 | $2.20K | 0 |
| Russell P. Beyer Chief Financial Officer | Oct 25, 2021 | Award | +129 | $7.78 | $1.00K | 278 |
| Christine E. Hamilton Director, 10% owner | Oct 22, 2021 | Award | +4,974,497 | – | – | 4,974,497 |
| Christine E. Hamilton Director, 10% owner | Oct 22, 2021 | Award | +5,049,351 | – | – | 5,049,351 |
| Thomas Charles Luke Chief Medical Officer | Oct 22, 2021 | Award | +5,428 | – | – | 5,428 |
| Eddie Joe Sullivan Chief Executive Officer, Director, 10% owner | Oct 22, 2021 | Award | +5,213,764 | – | – | 5,213,764 |
| Edward D. Hamilton 10% owner | Oct 22, 2021 | Award | +4,974,497 | – | – | 4,974,497 |
| Edward D. Hamilton 10% owner | Oct 22, 2021 | Award | +5,049,351 | – | – | 5,049,351 |
| Frederick Finnegan Chief Business Officer | Oct 22, 2021 | Award | +38,596 | – | – | 38,596 |
| David Charles Link Director | Oct 22, 2021 | Award | +12,097 | – | – | 12,097 |
| David Charles Link Director | Oct 22, 2021 | Award | +15,820 | – | – | 15,820 |
| Thomas Charles Luke Chief Medical Officer | Oct 19, 2021 | Award | +990 | $10.10 | $10.00K | 990 |
| Russell P. Beyer Chief Financial Officer | Oct 18, 2021 | Award | +2,475 | $10.10 | $25.00K | 2,475 |
| Christine E. Hamilton Director, 10% owner | Oct 14, 2021 | Award | +5,092 | $10.10 | $51.43K | 5,092 |
| Edward D. Hamilton 10% owner | Oct 14, 2021 | Award | +5,092 | $10.10 | $51.43K | 5,092 |
| Samuel J. Reich CEO and CFO, Director, 10% owner | Oct 14, 2021 | Buy | +1,000 | $10.11 | $10.11K | 1,000 |
| Christine E. Hamilton Director, 10% owner | Oct 13, 2021 | Award | +20,800 | $10.10 | $210.08K | 20,800 |
| Edward D. Hamilton 10% owner | Oct 13, 2021 | Award | +20,800 | $10.10 | $210.08K | 20,800 |
| Ilan Katz Director, 10% owner | Oct 13, 2021 | Buy | +500 | $10.11 | $5.06K | 1,500 |
| Christine E. Hamilton Director, 10% owner | Oct 12, 2021 | Award | +25,000 | $10.09 | $252.25K | 25,000 |
| Christine E. Hamilton Director, 10% owner | Oct 12, 2021 | Award | +25,000 | $10.08 | $252.00K | 25,000 |
| Edward D. Hamilton 10% owner | Oct 12, 2021 | Award | +25,000 | $10.08 | $252.00K | 25,000 |
| Edward D. Hamilton 10% owner | Oct 12, 2021 | Award | +25,000 | $10.09 | $252.25K | 25,000 |
| Eddie Joe Sullivan Chief Executive Officer, Director, 10% owner | Oct 7, 2021 | Award | +2,800 | $10.07 | $28.20K | 2,800 |
| Christine E. Hamilton Director, 10% owner | Oct 1, 2021 | Award | +2,695 | $10.10 | $27.22K | 2,695 |
| Edward D. Hamilton 10% owner | Oct 1, 2021 | Award | +2,695 | $10.10 | $27.22K | 2,695 |
| Ilan Katz Director, 10% owner | Oct 1, 2021 | Buy | +1,000 | $10.09 | $10.09K | 1,000 |
| Jeffrey G. Spragens Director | Oct 1, 2021 | Buy | +13,000 | $10.07 | $130.91K | 13,000 |
| Russell P. Beyer Chief Financial Officer | Sep 29, 2021 | Award | +10 | $10.08 | $101 | 15 |
| Russell P. Beyer Chief Financial Officer | Sep 28, 2021 | Award | +149 | $10.08 | $1.50K | 149 |
| Russell P. Beyer Chief Financial Officer | Sep 28, 2021 | Award | +5 | $10.07 | $50 | 5 |
| Cypress Holdings LLC Big CEO and CFO, Director, 10% owner | Jan 14, 2021 | Buy | +417,200 | $10.00 | $4.17M | 3,047,825 |
| Samuel J. Reich CEO and CFO, Director, 10% owner | Jan 14, 2021 | Buy | +417,200 | $10.00 | $4.17M | 3,047,825 |
| Ilan Katz Director, 10% owner | Jan 14, 2021 | Buy | +417,200 | $10.00 | $4.17M | 3,047,825 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.