Martin Brenner insider trades: iBio (IBIO) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Martin reports to the SEC
Open-market buys and sales
13 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Mar 19, 2026 | IBIO | ↑ Buy | 12,336 | $2.02 | $25K | Direct | Mar 23, 2026 (4d) |
| Jan 10, 2025 | IBIO | ↑ Buy | 9,191 | $2.72 | $25K | Direct | Jan 13, 2025 (3d) |
| Nov 1, 2023 | IBIO | ↓ Sell | 4,881 | $0.27 | $1K | Direct | Nov 3, 2023 (2d) |
| Oct 3, 2023 | IBIO | ↓ Sell | 5,267 | $0.30 | $2K | Direct | Oct 5, 2023 (2d) |
| Oct 2, 2023 | IBIO | ↓ Sell | 4,215 | $0.31 | $1K | Direct | Oct 3, 2023 (1d) |
| Aug 28, 2023 | IBIO | ↓ Sell | 5,011 | $0.31 | $2K | Direct | Aug 30, 2023 (2d) |
| Jul 27, 2023 | IBIO | ↓ Sell | 4,515 | $0.51 | $2K | Direct | Jul 28, 2023 (1d) |
| Jul 12, 2023 | IBIO | ↓ Sell | 47,020 | $0.59 | $28K | Direct | Jul 13, 2023 (1d) |
| Jun 21, 2023 | IBIO | ↓ Sell | 4,184 | $0.68 | $3K | Direct | Jun 22, 2023 (1d) |
| May 22, 2023 | IBIO | ↓ Sell | 4,182 | $0.94 | $4K | Direct | May 24, 2023 (2d) |
| Apr 24, 2023 | IBIO | ↓ Sell | 4,382 | $1.20 | $5K | Direct | Apr 24, 2023 (0d) |
| Mar 23, 2023 | IBIO | ↓ Sell | 5,213 | $2.13 | $11K | Direct | Mar 28, 2023 (5d) |
| Feb 21, 2023 | IBIO | ↓ Sell | 3,976 | $1.77 | $7K | Direct | Feb 23, 2023 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other IBIO insiders
Open-market trades in the last 12 months
About Martin Brenner's insider trades
Martin Brenner is See Remarks at iBio (IBIO). Since Feb 21, 2023, Martin has reported 2 open-market purchases worth $50K and 11 sales worth $66K on SEC Form 4. In the last 12 months: 1 buy ($25K).
Their filings also include grants and awards (13 filings), shares returned to the company (1 filing), other transactions (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every IBIO insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.