WILHELMUS CM GROENHUYSEN
CIK 1264783 · Chief Operating Officer · last filed 2025-05-21
WILHELMUS CM GROENHUYSEN is a Chief Operating Officer who has filed 81 SEC Form 4 insider transactions across 2 companies since 2016. The most recent filing, for OPTN, was dated May 21, 2025. Across all open-market trades the lifetime net is −$64.7M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $6.7M 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.
$6.70M
2
81
-$64.69M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| OptiNose, Inc. (OPTN) Delisted | Director | — | $9.60 | — | $0 | 9 | 2025-05-21 |
| NVCR | Chief Operating Officer | 376,663 | $17.78 | $6.70M | -$64.69M | 72 | 2024-08-06 |
Recent Filings
81 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-05-21 | OptiNose, Inc. (OPTN) Delisted | Disp (D) | — | $0 | EDGAR |
| 2024-08-06 | NVCR | Grant (A) | +1,055 | $12.9K | EDGAR |
| 2024-06-07 | NVCR | Exer (M) | +124,373 | $2.84M | EDGAR |
| 2024-06-07 | OptiNose, Inc. (OPTN) Delisted | Grant (A) | — | $0 | EDGAR |
| 2024-03-05 | NVCR | Sell (S) | −3,324 | -$53.3K | EDGAR |
| 2024-02-29 | NVCR | Mixed | +44,734 | $729.5K | EDGAR |
| 2023-09-05 | NVCR | Sell (S) | −294 | -$6.4K | EDGAR |
| 2023-07-06 | NVCR | Grant (A) | +366 | $12.9K | EDGAR |
| 2023-06-09 | OptiNose, Inc. (OPTN) Delisted | Grant (A) | — | $0 | EDGAR |
| 2023-03-07 | NVCR | Sell (S) | −25,635 | -$1.95M | EDGAR |