DE GREEF RODERICK Insider Trading -- Recent SEC Form 4 Transactions
DE GREEF RODERICK (CIK 1241181) reported 16 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-10-08). Recent activity: Buy BLFS (225,670 shares), Buy BLFS (237,460 shares), Sell BLFS (364,872 shares), Sell BLFS (826,454 shares), Sell BLFS (2,775 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-08 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Executive Officer | Buy | 225,670 | $0 |
| 2026-10-08 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Executive Officer | Buy | 237,460 | $0 |
| 2026-10-08 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Executive Officer | Sell | 364,872 | $14.1M |
| 2026-10-08 | BIOLIFE SOLUTIONS INC (BLFS) | Chief Executive Officer | Sell | 826,454 | $0 |
| 2026-09-22 | BIOLIFE SOLUTIONS INC (BLFS) | President and CEO | Sell | 2,775 | $101,815 |
| 2026-06-22 | BIOLIFE SOLUTIONS INC (BLFS) | President and CEO | Sell | 2,775 | $72,261 |
| 2026-03-23 | BIOLIFE SOLUTIONS INC (BLFS) | President and CEO | Sell | 11,101 | $212,251 |
| 2026-02-26 | BIOLIFE SOLUTIONS INC (BLFS) | President and CEO | Buy | 118,730 | $0 |
| 2026-02-26 | BIOLIFE SOLUTIONS INC (BLFS) | President and CEO | Buy | 170,291 | $0 |
| 2026-02-26 | BIOLIFE SOLUTIONS INC (BLFS) | President and CEO | Sell | 67,010 | $1.5M |
| 2026-02-26 | BIOLIFE SOLUTIONS INC (BLFS) | President and CEO | Buy | 219,024 | $0 |
| 2026-02-26 | BIOLIFE SOLUTIONS INC (BLFS) | President and CEO | Sell | 86,186 | $2.0M |
| 2025-11-13 | BIOLIFE SOLUTIONS INC (BLFS) | President and CEO | Sell | 35,417 | $926,155 |
| 2025-11-13 | BIOLIFE SOLUTIONS INC (BLFS) | President and CEO | Sell | 33,418 | $864,858 |
| 2025-11-13 | BIOLIFE SOLUTIONS INC (BLFS) | President and CEO | Sell | 31,165 | $789,409 |
| 2025-10-24 | BIOLIFE SOLUTIONS INC (BLFS) | President and CEO | Sell | 37,795 | $1.0M |
Source: SEC Form 4 filings · as of 2026-10-08