DE GREEF RODERICK
Director · Officer · BLFS
As of 2026-09-16, DE GREEF RODERICK has 17 Form 4 transactions on record across 1 company — 14 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Pattern in the record: open-market sales filed in October in multiple years since 2024 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
- Direct $26.4M
- Indirect $0
| BLFS | direct | 730,971 sh | $26.4M |
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2025-11-13 | BLFS | Sale | 31,165 @ $25.33 | $789K | −7.4% of holding | 389,998 | Form 4 |
| 2025-11-12 | BLFS | Sale | 33,418 @ $25.88 | $865K | −7.4% of holding | 421,163 | Form 4 |
| 2025-11-11 | BLFS | Sale | 35,417 @ $26.15 | $926K | −7.2% of holding | 454,581 | Form 4 |
| 2025-10-22 | BLFS | Sale | 37,795 @ $27.30 | $1.0M | −7.2% of holding | 489,998 | Form 4 |
| 2024-10-31 | BLFS | Sale | 46,896 @ $23.43 | $1.1M | −10.2% of holding | 414,958 | Form 4 |
12 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-06-18 | BLFS | Withheld for tax | 2,775 | 730,971 | Form 4 |
| 2026-03-19 | BLFS | Withheld for tax | 11,101 | 733,746 | Form 4 |
| 2026-02-24 | BLFS | Withheld for tax | 86,186 | 744,847 | Form 4 |
| 2026-02-24 | BLFS | Withheld for tax | 67,010 | 612,009 | Form 4 |
| 2026-02-24 | BLFS | Award / grant | 118,730 | 508,728 | Form 4 |
| 2026-02-24 | BLFS | Award / grant | 118,730 | 508,728 | Form 4 |
| 2026-02-24 | BLFS | Award / grant | 170,291 | 679,019 | Form 4 |
| 2026-02-24 | BLFS | Award / grant | 170,291 | 679,019 | Form 4 |
| 2026-02-24 | BLFS | Award / grant | 219,024 | 831,033 | Form 4 |
| 2026-02-24 | BLFS | Award / grant | 219,024 | 831,033 | Form 4 |
| 2025-03-18 | BLFS | Award / grant | 112,835 | 527,793 | Form 4 |
| 2025-03-18 | BLFS | Award / grant | 112,835 | 527,793 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.