Kropotova Alexandra — SEC Form 4 filings
SEC reporting owner CIK 1825323. 12 Form 4 filings on record with FilingPulse; latest filed 2026-09-18.
Transaction summary — filings shown
Covers all 12 filings on record, filed 2024-02-23 to 2026-09-18. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 12.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| SAB Biotherapeutics, Inc. (SABS) | CHIEF MEDICAL OFFICER | 10 | — | — | 10 |
| iBio, Inc. (IBIO) | Director | 2 | — | — | 2 |
Form 4 filings — Kropotova Alexandra
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-18 | 4 | SAB Biotherapeutics, Inc. (SABS) | Tax withholding (F): 473 | EDGAR |
| 2026-06-26 | 4 | SAB Biotherapeutics, Inc. (SABS) | Tax withholding (F): 988 | EDGAR |
| 2026-03-25 | 4 | SAB Biotherapeutics, Inc. (SABS) | Tax withholding (F): 988 | EDGAR |
| 2026-02-05 | 4 | SAB Biotherapeutics, Inc. (SABS) | Grant/award (A): 2,400,000 (derivative) @ $0 | EDGAR |
| 2025-12-12 | 4 | SAB Biotherapeutics, Inc. (SABS) | Tax withholding (F): 988 | EDGAR |
| 2025-11-24 | 4 | iBio, Inc. (IBIO) | Grant/award (A): 13,500 (derivative) @ $0 | EDGAR |
| 2025-09-22 | 4 | SAB Biotherapeutics, Inc. (SABS) | Tax withholding (F): 1,977 | EDGAR |
| 2025-08-28 | 4 | SAB Biotherapeutics, Inc. (SABS) | Grant/award (A): 2,400,000 (derivative) @ $0 | EDGAR |
| 2025-04-01 | 4 | SAB Biotherapeutics, Inc. (SABS) | Tax withholding (F): 1,179 | EDGAR |
| 2024-12-31 | 4 | SAB Biotherapeutics, Inc. (SABS) | Tax withholding (F): 9,072 | EDGAR |
| 2024-11-25 | 4 | iBio, Inc. (IBIO) | Grant/award (A): 18,900 (derivative) @ $0 | EDGAR |
| 2024-02-23 | 4 | SAB Biotherapeutics, Inc. (SABS) | Grant/award (A): 140,000 (derivative) @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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