Willard H Dere
CIK 1311569 · last filed 2026-06-11
Willard H Dere is a corporate insider who has filed 61 SEC Form 4 insider transactions across 5 companies since 2014. The most recent filing, for MGX, was dated Jun 11, 2026. Across all open-market trades the lifetime net is −$619.5K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $2.8M 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.
$2.78M
5
61
-$619.5K
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MGX | Director | — | $1.20 | — | $0 | 3 | 2026-06-11 |
| BMRN | Director | 46,440 | $55.95 | $2.60M | -$547.6K | 13 | 2026-06-04 |
| Mersana Therapeutics, Inc. (MRSN) Delisted | Director | 0 | $29.08 | $0 | $0 | 17 | 2026-01-06 |
| MCRB | Director | 31,746 | $5.70 | $181.0K | $0 | 10 | 2025-04-11 |
| Radius Health, Inc. (RDUS) Delisted | Director | 1,895 | $30.00 | $56.9K | -$71.9K | 15 | 2022-08-15 |
Recent Filings
61 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-11 | MGX | Grant (A) | — | $0 | EDGAR |
| 2026-06-04 | BMRN | Grant (A) | +7,490 | $0 | EDGAR |
| 2026-01-06 | Mersana Therapeutics, Inc. (MRSN) Delisted | Mixed | −1,567 | $0 | EDGAR |
| 2025-06-13 | Mersana Therapeutics, Inc. (MRSN) Delisted | Grant (A) | — | $0 | EDGAR |
| 2025-06-12 | MGX | Grant (A) | — | $0 | EDGAR |
| 2025-05-22 | BMRN | Grant (A) | +6,650 | $0 | EDGAR |
| 2025-04-11 | MCRB | Grant (A) | — | $0 | EDGAR |
| 2024-06-12 | Mersana Therapeutics, Inc. (MRSN) Delisted | Grant (A) | — | $0 | EDGAR |
| 2024-05-23 | BMRN | Grant (A) | +4,720 | $0 | EDGAR |
| 2024-04-08 | MCRB | Grant (A) | — | $0 | EDGAR |