SEC Form 4 · Updated Daily
IBIO
— IBIO, INC. OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| Parada Antonio Bernardino Guimaraes | Director | 183,823 | 2025-01-10 | P |
| Duran Felipe | Officer | 35,974 | 2026-03-19 | P |
| Brenner Martin | Director · Officer | 30,652 | 2026-03-19 | P |
| Banjak Marc | Officer | 25,000 | 2026-03-26 | P |
| Arkowitz David | Director | 18,382 | 2025-01-10 | P |
| Sender Gary | Director | 9,191 | 2025-01-10 | P |
| Clark William D | Director | 1,838 | 2025-01-10 | P |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-07-31 | Carr Molly | Grant / award (derivative) | 430,000 | $0.00 | 430,000 |
| 2026-05-18 | Stoner Elizabeth | Grant / award (derivative) | 60,000 | $0.00 | 60,000 |
| 2026-03-26 | Banjak Marc | Open-market buy | 1,434 | $1.76 | 25,000 |
| 2026-03-26 | Banjak Marc | Open-market buy | 12,500 | $1.64 | 23,566 |
| 2026-03-19 | Brenner Martin | Open-market buy | 12,336 | $2.02 | 30,652 |
| 2026-03-19 | Duran Felipe | Open-market buy | 24,835 | $2.02 | 35,974 |
| 2026-01-28 | Brenner Martin | Grant / award (derivative) | 479,000 | $0.00 | 479,000 |
| 2026-01-28 | Duran Felipe | Grant / award (derivative) | 179,000 | $0.00 | 179,000 |
| 2026-01-28 | Banjak Marc | Grant / award (derivative) | 146,000 | $0.00 | 146,000 |
| 2025-11-20 | Arkowitz David | Grant / award (derivative) | 13,500 | $0.00 | 13,500 |
| 2025-11-20 | Parada Antonio Bernardino Guimaraes | Grant / award (derivative) | 13,500 | $0.00 | 13,500 |
| 2025-11-20 | Kropotova Alexandra | Grant / award (derivative) | 13,500 | $0.00 | 13,500 |
| 2025-11-20 | Sender Gary | Grant / award (derivative) | 13,500 | $0.00 | 13,500 |
| 2025-11-20 | Clark William D | Grant / award (derivative) | 13,500 | $0.00 | 13,500 |
| 2025-11-20 | Schimmelpennink Evert B. | Grant / award (derivative) | 13,500 | $0.00 | 13,500 |
| 2025-10-20 | Brenner Martin | Grant / award (derivative) | 180,000 | $0.00 | 180,000 |
| 2025-10-20 | Banjak Marc | Grant / award (derivative) | 55,000 | $0.00 | 55,000 |
| 2025-10-20 | Duran Felipe | Grant / award (derivative) | 75,000 | $0.00 | 75,000 |
| 2025-02-21 | Brenner Martin | Grant / award (derivative) | 230,700 | $0.00 | 230,700 |
| 2025-02-21 | Duran Felipe | Grant / award (derivative) | 84,700 | $0.00 | 84,700 |
| 2025-02-21 | Banjak Marc | Grant / award (derivative) | 71,000 | $0.00 | 71,000 |
| 2025-01-10 | Sender Gary | Open-market buy | 9,191 | $2.72 | 9,191 |
| 2025-01-10 | Parada Antonio Bernardino Guimaraes | Open-market buy | 183,823 | $2.72 | 183,823 |
| 2025-01-10 | Clark William D | Open-market buy | 1,838 | $2.72 | 1,838 |
| 2025-01-10 | Arkowitz David | Open-market buy | 18,382 | $2.72 | 18,382 |
| 2025-01-10 | Banjak Marc | Open-market buy | 9,191 | $2.72 | 11,066 |
| 2025-01-10 | Brenner Martin | Open-market buy | 9,191 | $2.72 | 18,316 |
| 2025-01-10 | Duran Felipe | Open-market buy | 9,191 | $2.72 | 11,139 |
| 2024-11-21 | Schimmelpennink Evert B. | Grant / award (derivative) | 18,900 | $0.00 | 18,900 |
| 2024-11-21 | Sender Gary | Grant / award (derivative) | 18,900 | $0.00 | 18,900 |
| 2024-11-21 | Parada Antonio Bernardino Guimaraes | Grant / award (derivative) | 12,600 | $0.00 | 12,600 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.