William Fuller Matlack
CIK 1692272 · last filed 2025-10-27
William Fuller Matlack is a corporate insider who has filed 20 SEC Form 4 insider transactions across 1 company since 2017. Across all open-market trades the lifetime net is −$1.1M, making them a net seller over the disclosed history.
"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.
$0
1
20
-$1.05M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| Klondex Mines Unlimited Liability Co (KLDX) Delisted | Director | 1,222,488 | — | — | -$1.05M | 7 | 2017-11-14 |
Recent Filings
20 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-10-27 | — | Exer (M) | +100,000 | $59.0K | |
| 2024-01-30 | — | Grant (A) | — | $0 | |
| 2023-10-31 | — | Buy (P) | +600,000 | $0 | |
| 2023-03-13 | — | Grant (A) | — | $0 | |
| 2022-08-08 | — | Sell (S) | −65,500 | -$12.2K | |
| 2022-08-04 | — | Sell (S) | −51,000 | -$9.5K | |
| 2022-07-21 | — | Sell (S) | −62,000 | -$10.1K | |
| 2021-06-08 | — | Grant (A) | — | $0 | |
| 2020-09-17 | — | Mixed | +3,543,600 | $248.1K | |
| 2020-09-01 | — | Buy (P) | +818,181 | $90.0K |