William D Clark
CIK 1355415 · President and CEO · last filed 2026-06-11
William D Clark is a President and CEO who has filed 49 SEC Form 4 insider transactions across 5 companies since 2007. The most recent filing, for ALDX, was dated Jun 11, 2026. Across all open-market trades the lifetime net is −$2.8M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $990.9K across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$990.9K
5
49
-$2.75M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| ALDX | Director | — | $1.76 | — | $0 | 2 | 2026-06-11 |
| IBIO | Director | 1,838 | $1.69 | $3.1K | $5.0K | 5 | 2025-11-24 |
| GENOCEA BIOSCIENCES, INC. (GNCA) Delisted | President and CEO | 304,377 | $0.00 | $183 | $39.1K | 22 | 2022-06-03 |
| ASNS | Director | — | $0.08 | — | $0 | 3 | 2018-06-07 |
| VNDA | Sr. VP, Chief Business Officer | 168,279 | $5.87 | $987.8K | -$2.80M | 17 | 2010-02-23 |
Recent Filings
49 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-11 | ALDX | Grant (A) | — | $0 | EDGAR |
| 2025-11-24 | IBIO | Grant (A) | — | $0 | EDGAR |
| 2025-04-18 | ALDX | Grant (A) | — | $0 | EDGAR |
| 2025-01-13 | IBIO | Buy (P) | +1,838 | $5.0K | EDGAR |
| 2024-11-25 | IBIO | Grant (A) | — | $0 | EDGAR |
| 2022-06-03 | GENOCEA BIOSCIENCES, INC. (GNCA) Delisted | Sell (S) | −4,023 | -$241 | EDGAR |
| 2022-06-02 | GENOCEA BIOSCIENCES, INC. (GNCA) Delisted | Sell (S) | −117,244 | -$7.2K | EDGAR |
| 2022-04-05 | GENOCEA BIOSCIENCES, INC. (GNCA) Delisted | Sell (S) | −3,924 | -$4.9K | EDGAR |
| 2022-03-17 | GENOCEA BIOSCIENCES, INC. (GNCA) Delisted | Mixed | +138,565 | -$12.6K | EDGAR |
| 2021-12-13 | IBIO | Grant (A) | — | $0 | EDGAR |