Alexandra Kropotova
CIK: 0001825323
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (12 total)
- Oct 14, 2026IBIO
iBio, Inc.
Award(A)DirectStock Option (right to buy)
38K shares- - Sep 17, 2026SABS
SAB Biotherapeutics, Inc.
Tax Payment(F)Direct473 shares- - Jun 25, 2026SABS
SAB Biotherapeutics, Inc.
Tax Payment(F)Direct988 shares- - Mar 24, 2026SABS
SAB Biotherapeutics, Inc.
Tax Payment(F)Direct988 shares- - Feb 3, 2026SABS
SAB Biotherapeutics, Inc.
Award(A)DirectStock option (right to buy)
2.4M shares- - Dec 11, 2025SABS
SAB Biotherapeutics, Inc.
Tax Payment(F)Direct988 shares- - Nov 20, 2025IBIO
iBio, Inc.
Award(A)DirectStock Option (right to buy)
13.5K shares- - Sep 19, 2025SABS
SAB Biotherapeutics, Inc.
Tax Payment(F)Direct2K shares- - Aug 26, 2025SABS
SAB Biotherapeutics, Inc.
Award(A)DirectStock Option (right to buy)
2.4M shares- - Mar 27, 2025SABS
SAB Biotherapeutics, Inc.
Tax Payment(F)Direct1.2K shares- - Dec 18, 2024SABS
SAB Biotherapeutics, Inc.
Tax Payment(F)Direct9.1K shares- - Nov 21, 2024IBIO
iBio, Inc.
Award(A)DirectStock Option (right to buy)
18.9K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Oct 14, 2026 |  IBIO iBio, Inc. | Award(A) Stock Option (right to buy) | 38,000 | - | - | Direct |
| Sep 17, 2026 |  SABS SAB Biotherapeutics, Inc. | Tax Payment(F) | 473 | - | $0 | Direct |
| Jun 25, 2026 | SABS SAB Biotherapeutics, Inc. | Tax Payment(F) | 988 | - | $0 | Direct |
| Mar 24, 2026 | SABS SAB Biotherapeutics, Inc. | Tax Payment(F) | 988 | - | $0 | Direct |
| Feb 3, 2026 | SABS SAB Biotherapeutics, Inc. | Award(A) Stock option (right to buy) | 2,400,000 | - | - | Direct |
| Dec 11, 2025 | SABS SAB Biotherapeutics, Inc. | Tax Payment(F) | 988 | - | - | Direct |
| Nov 20, 2025 | IBIO iBio, Inc. | Award(A) Stock Option (right to buy) | 13,500 | - | - | Direct |
| Sep 19, 2025 | SABS SAB Biotherapeutics, Inc. | Tax Payment(F) | 1,977 | - | - | Direct |
| Aug 26, 2025 | SABS SAB Biotherapeutics, Inc. | Award(A) Stock Option (right to buy) | 2,400,000 | - | - | Direct |
| Mar 27, 2025 | SABS SAB Biotherapeutics, Inc. | Tax Payment(F) | 1,179 | - | - | Direct |
| Dec 18, 2024 | SABS SAB Biotherapeutics, Inc. | Tax Payment(F) | 9,072 | - | $0 | Direct |
| Nov 21, 2024 | IBIO iBio, Inc. | Award(A) Stock Option (right to buy) | 18,900 | - | - | Direct |
1-12 of 12 transactions
About Kropotova Alexandra
Kropotova Alexandra (SEC CIK 0001825323) files insider reports with the SEC as Director of iBio, Inc. (IBIO) and CHIEF MEDICAL OFFICER of SAB Biotherapeutics, Inc. (SABS).
Signal8 holds 12 ownership filings by Kropotova Alexandra, all Form 4s, filed between Nov 25, 2024 and Oct 15, 2026. Those filings report 12 transactions, from Nov 21, 2024 to Oct 14, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on Kropotova Alexandra's filings is in SAN DIEGO, CA.
Recent filings by Kropotova Alexandra
- Oct 14, 2026: Grant or award of IBIO derivative securities (Form 4, code A).
- Sep 17, 2026: Tax withholding of SABS shares (Form 4, code F).
- Jun 25, 2026: Tax withholding of SABS shares (Form 4, code F).
- Mar 24, 2026: Tax withholding of SABS shares (Form 4, code F).
- Feb 3, 2026: Grant or award of SABS derivative securities (Form 4, code A).
Other insiders filing for iBio, Inc. (IBIO)
- Stoner Elizabeth, Director
- Arkowitz David, Director
- Clark William D, Director
- Parada Antonio Bernardino Guimaraes, Director
- Sender Gary, Director
- Carr Molly, Chief Medical Officer