12 institutions reported holding $1.7M of SAB BIOTHERAPEUTICS INC (SABSW) in SEC 13F filings for 2026-03-31. Largest institutional holders: Seven Fleet Capital Management LP ($1.5M), SIMPLEX TRADING, LLC ($121,028), GROUP ONE TRADING LLC ($15,320), LMR Partners LLP ($14,083), MORGAN STANLEY ($3,705). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Seven Fleet Capital Management LP | $1.5M | 400,000 | New |
| 2 | SIMPLEX TRADING, LLC | $121,028 | 31,600 | New |
| 3 | GROUP ONE TRADING LLC | $15,320 | 4,000 | New |
| 4 | LMR Partners LLP | $14,083 | 539,588 | New |
| 5 | MORGAN STANLEY | $3,705 | 146,439 | Hold |
| 6 | Clear Street Group Inc. | $2,055 | 78,733 | Trimmed |
| 7 | MILLENNIUM MANAGEMENT LLC | $1,634 | 62,500 | Hold |
| 8 | GTS SECURITIES LLC | $1,066 | 41,001 | Trimmed |
| 9 | UBS Group AG | $105 | 4,186 | Trimmed |
| 10 | WOLVERINE ASSET MANAGEMENT LLC | $47 | 1,811 | Hold |
| 11 | NewEdge Advisors, LLC | $0 | 0 | Exited |
| 12 | BANK OF AMERICA CORP /DE/ | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31