Quick Takeaways
- RA CAPITAL MANAGEMENT, L.P. filed SCHEDULE 13D/A for SAB Biotherapeutics, Inc. Common Stock, $0.0001 par value per share (SABS).
- Disclosed ownership: 9.9%.
- Date of event: 19 Mar 2026.
RA CAPITAL MANAGEMENT, L.P. - 19 Mar 2026 SCHEDULE 13D/A Report for SAB Biotherapeutics, Inc. Common Stock, $0.0001 par value per share (SABS)
- Filing Manager
- RA CAPITAL MANAGEMENT, L.P.
- Reporting Manager
- RA Capital Management, L.P.
- Symbol
- SABS
- Shares outstanding
- 73,850,758 shares
- Disclosed Ownership
- 7,311,225 shares
- Ownership
- 9.9%
- Form type
- SCHEDULE 13D/A
- Filing time
- 23 Mar 2026, 16:25:55 UTC
- Date of event
- 19 Mar 2026
- Previous filing
- 11 Mar 2026
- SEC
- View on sec.gov
Quoteable Key Fact
"RA CAPITAL MANAGEMENT, L.P. disclosed 9.9% ownership in SAB Biotherapeutics, Inc. Common Stock, $0.0001 par value per share (SABS) on 19 Mar 2026."
What Changed
- Previous schedule filing date: 11 Mar 2026.
- Current filing was accepted on 23 Mar 2026, 16:25.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Source Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting Managers (4)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| RA Capital Management, L.P. | 9.9% | 7,311,225 | 0 | 7,311,225 | /s/ Peter Kolchinsky | By Peter Kolchinsky, Authorized Signatory | 0001346824 |
| Peter Kolchinsky | 9.9% | 7,311,225 | 0 | 7,311,225 | /s/ Peter Kolchinsky | Peter Kolchinsky | 0001384859 |
| Rajeev Shah | 9.9% | 7,311,225 | 0 | 7,311,225 | /s/ Rajeev Shah | Rajeev Shah | 0001619841 |
| RA Capital Healthcare Fund, L.P. | 9.9% | 7,311,225 | 0 | 7,311,225 | /s/ Peter Kolchinsky | By RA Capital Healthcare Fund GP, LLC, its General Partner, By Peter Kolchinsky, Manager | 0001315082 |