Clark William D has filed 4 insider transactions across 2 companies since November 2024.
Most recent transaction: a grant/award of 13500 shares of iBio, Inc. ($IBIO) on November 20, 2025.
Activity breakdown: 1 open-market purchase and 0 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nov. 20, 2025 | iBio, Inc. | $IBIO | Clark William D | Director | A | Stock Option (right to buy) | 13500 | $0.00 | 13,500.0000 | 52,981,000 | 9999.99% | 0.03% |
| April 17, 2025 | Aldeyra Therapeutics, Inc. | $ALDX | Clark William D | Not found | A | Stock Option (Right to Buy) | 76760 | $0.00 | 76,760.0000 | 59,708,654 | 9999.99% | 0.13% |
| Jan. 10, 2025 | iBio, Inc. | $IBIO | Clark William D | Director | P | Common Stock | 1838 | $2.72 | 1,838.0000 | 9,132,000 | 9999.99% | 0.02% |
| Nov. 21, 2024 | iBio, Inc. | $IBIO | Clark William D | Director | A | Stock Option (right to buy) | 18900 | $0.00 | 18,900.0000 | 8,633,000 | 9999.99% | 0.22% |