Clark William D
- SEC CIK
- 0001355415
No open-market purchases or sales filed in the past year.
Current role at each company
- ALDX Aldeyra Therapeutics, Inc.Directoras of Jun 11, 2026
- IBIO iBio, Inc.Directoras of Nov 24, 2025
- GNCA Genocea Biosciences, Inc.President and CEOas of Jun 3, 2022
Open-market trades in the past year
Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.
- Bought
- –
- 0 filings
- Sold
- –
- 0 filings
- Net
- –
- Bought minus sold
- Companies
- 0
- With open-market trades
Trades
Every Form 4 that lists Clark William D as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.
IBIO iBio, Inc.
Director1 trade
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jan 13, 2025 (view filing) | Jan 10 | 3 days | Clark William DDirector | PPurchase | +1.84K | $2.72 | +$5.00K | New position1.84K after |
GNCA Genocea Biosciences, Inc.
President and CEO4 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jun 3, 2022 (view filing)4:11 PM ET | Jun 2 | 1 day | Clark William DPresident and CEO | SSale | −4.02K | $0.06 | −$241.38 | −1.3%304.4K after | |
| Jun 2, 2022 (view filing)4:31 PM ET | May 31 | 2 days | Clark William DPresident and CEO | SSale | −117.2K | $0.0617 | −$7.23K | −27.5%308.4K after | |
| Apr 5, 2022 (view filing) | Apr 4 | 1 day | Clark William DPresident and CEO | SSale | −3.92K | $1.25 | −$4.91K | −1.1%369.5K after | |
| Mar 17, 2022 (view filing) | Mar 16 | 1 day | Clark William DPresident and CEO | SSale | −11.4K | $1.10 | −$12.6K | −3.0%373.4K after |