RODERICK DE GREEF
CIK 1241181 · President and CEO · last filed 2026-03-23
RODERICK DE GREEF is a President and CEO who has filed 114 SEC Form 4 insider transactions across 4 companies since 2007. The most recent filing shows the insider had shares withheld for taxes covering $212.3K of BLFS on Mar 23, 2026. Across all open-market trades the lifetime net is −$24.3M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $19.2M 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.
$19.15M
4
114
-$24.25M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| BLFS | President and CEO | 733,746 | $26.10 | $19.15M | -$21.97M | 81 | 2026-03-23 |
| PARETEUM Corp (TEUM) Delisted | Director | 451,949 | — | — | $30.4K | 2 | 2017-02-24 |
| PARETEUM Corp (ETAK) Delisted | Director | 176,038 | — | — | $0 | 2 | 2016-04-29 |
| ENDOLOGIX INC /DE/ (ELGX) Delisted | Director | 8,602 | — | — | -$2.31M | 12 | 2013-03-08 |
Recent Filings
114 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-03-23 | BLFS | Tax (F) | −11,101 | -$212.3K | EDGAR |
| 2026-02-26 | BLFS | Mixed | +354,849 | -$3.47M | EDGAR |
| 2025-11-13 | BLFS | Sell (S) | −100,000 | -$2.58M | EDGAR |
| 2025-10-24 | BLFS | Sell (S) | −37,795 | -$1.03M | EDGAR |
| 2025-03-20 | BLFS | Grant (A) | +112,835 | $0 | EDGAR |
| 2025-01-08 | BLFS | Sell (S) | −46,896 | -$1.10M | EDGAR |
| 2024-03-12 | BLFS | Mixed | +21,957 | -$120.3K | EDGAR |
| 2024-01-23 | BLFS | Sell (S) | −2,642 | -$44.3K | EDGAR |
| 2023-11-01 | BLFS | Grant (A) | +394,856 | $0 | EDGAR |
| 2023-10-10 | BLFS | Grant (A) | +362 | $0 | EDGAR |