Martin Brenner serves as Executive at iBio, Inc., where they oversee executive responsibilities. Since joining the company, Martin Brenner has executed 21 insider transactions totaling $66.0K, demonstrating a bearish approach to their equity position. Their most recent transaction on Jan 28, 2026 involved receiving (via award) 479,000 shares valued at $0.
Martin Brenner currently holds 479,000 shares of iBio, Inc. (IBIO), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Martin Brenner has been a net seller of IBIO stock. They have purchased $0 and sold $66.0K worth of shares.
Martin Brenner's most recent insider trade was on Jan 28, 2026, when they sold 479,000 shares at $0.00 per share.
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| $0.27 |
| Discretionary |
| Oct 3, 2023 | IBIO | $1.6K | Sale | 5,267 | $0.30 | Discretionary |
| Oct 2, 2023 | IBIO | $1.3K | Sale | 4,215 | $0.31 | Discretionary |
| Aug 28, 2023 | IBIO | $1.6K | Sale | 5,011 | $0.31 | Discretionary |
| Jul 27, 2023 | IBIO | $2.3K | Sale | 4,480 | $0.51 | Discretionary |
| Jul 27, 2023 | IBIO | $18 | Sale | 35 | $0.51 | Discretionary |
| Jul 12, 2023 | IBIO | $27.7K | Sale | 47,020 | $0.59 | Discretionary |
| Jun 26, 2023 | IBIO | $0 | Award | 75,833 | $N/A | Discretionary |
| Jun 22, 2023 | IBIO | $0 | Disposition | 75,833 | $N/A | Discretionary |
| Jun 21, 2023 | IBIO | $68 | Sale | 100 | $0.68 | Discretionary |
| Jun 21, 2023 | IBIO | $155 | Sale | 225 | $0.69 | Discretionary |
| Jun 21, 2023 | IBIO | $2.6K | Sale | 3,859 | $0.68 | Discretionary |
| May 22, 2023 | IBIO | $23 | Sale | 24 | $0.95 | Discretionary |
| May 22, 2023 | IBIO | $3.9K | Sale | 4,158 | $0.94 | Discretionary |
| Apr 24, 2023 | IBIO | $5.3K | Sale | 4,382 | $1.20 | Discretionary |
| Mar 31, 2023 | IBIO | $0 | Award | 50,000 | $N/A | Discretionary |
| Mar 23, 2023 | IBIO | $11.1K | Sale | 5,213 | $2.13 | Discretionary |
| Feb 21, 2023 | IBIO | $7.0K | Sale | 3,976 | $1.77 | Discretionary |
| Jan 20, 2023 | IBIO | $0 | Award | 130,000 | $N/A | Discretionary |
| Nov 11, 2022 | IBIO | $0 | Award | 95,348 | $N/A | Discretionary |