Roderick de Greef, President and CEO of BioLife Solutions Inc. ($BLFS), sold shares on the open market four times in the last year, totaling $3.6 million. His most recent sale occurred on November 13, 2025. These sales rank 2,395th among 11,678 insiders in our database, below the average of $8.6 million per seller and 6.4 transactions. He made no open market purchases during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 19, 2026 | BIOLIFE SOLUTIONS INC | $BLFS | DE GREEF RODERICK | President and CEO | F | Common Stock | 11101 | $19.12 | 733,746.0000 | 48,723,535 | 1.49% | 0.02% |
| Feb. 24, 2026 | BIOLIFE SOLUTIONS INC | $BLFS | DE GREEF RODERICK | President and CEO | F | Common Stock | 86186 | $22.65 | 744,847.0000 | 48,723,535 | 10.37% | 0.18% |
| Feb. 24, 2026 | BIOLIFE SOLUTIONS INC | $BLFS | DE GREEF RODERICK | President and CEO | A | Common Stock | 219024 | $0.00 | 831,033.0000 | 48,723,535 | 35.79% | 0.45% |
| Feb. 24, 2026 | BIOLIFE SOLUTIONS INC | $BLFS | DE GREEF RODERICK | President and CEO | F | Common Stock | 67010 | $22.65 | 612,009.0000 | 48,723,535 | 9.87% | 0.14% |
| Feb. 24, 2026 | BIOLIFE SOLUTIONS INC | $BLFS | DE GREEF RODERICK | President and CEO | A | Common Stock | 170291 | $0.00 | 679,019.0000 | 48,723,535 | 33.47% | 0.35% |
| Feb. 24, 2026 | BIOLIFE SOLUTIONS INC | $BLFS | DE GREEF RODERICK | President and CEO | A | Common Stock | 118730 | $0.00 | 508,728.0000 | 48,723,535 | 30.44% | 0.24% |
| Nov. 12, 2025 | BIOLIFE SOLUTIONS INC | $BLFS | DE GREEF RODERICK | President and CEO | S | Common Stock | 33418 | $25.88 | 421,163.0000 | 48,723,535 | 7.35% | 0.07% |
| Nov. 11, 2025 | BIOLIFE SOLUTIONS INC | $BLFS | DE GREEF RODERICK | President and CEO | S | Common Stock | 35417 | $26.15 | 454,581.0000 | 48,723,535 | 7.23% | 0.07% |
| Nov. 13, 2025 | BIOLIFE SOLUTIONS INC | $BLFS | DE GREEF RODERICK | President and CEO | S | Common Stock | 31165 | $25.33 | 389,998.0000 | 48,723,535 | 7.40% | 0.06% |
| Oct. 22, 2025 | BIOLIFE SOLUTIONS INC | $BLFS | DE GREEF RODERICK | President and CEO | S | Common Stock | 37795 | $27.30 | 489,998.0000 | 48,723,535 | 7.16% | 0.08% |
| March 18, 2025 | BIOLIFE SOLUTIONS INC | $BLFS | DE GREEF RODERICK | President and CEO | A | Common Stock | 112835 | $0.00 | 527,793.0000 | 46,067,073 | 27.19% | 0.24% |
| Oct. 31, 2024 | BIOLIFE SOLUTIONS INC | $BLFS | DE GREEF RODERICK | President and CEO | S | Common Stock | 46896 | $23.43 | 414,958.0000 | 46,175,345 | 10.15% | 0.10% |
| March 12, 2024 | BIOLIFE SOLUTIONS INC | $BLFS | DE GREEF RODERICK | President and CEO | S | Common Stock | 7249 | $16.60 | 461,854.0000 | 43,719,185 | 1.55% | 0.02% |
| March 8, 2024 | BIOLIFE SOLUTIONS INC | $BLFS | DE GREEF RODERICK | President and CEO | A | Common Stock | 29206 | $0.00 | 469,103.0000 | 43,719,185 | 6.64% | 0.07% |
| Jan. 19, 2024 | BIOLIFE SOLUTIONS INC | $BLFS | DE GREEF RODERICK | President and CEO | S | Common Stock | 2642 | $16.76 | 439,897.0000 | 43,719,185 | 0.60% | 0.01% |