BIOLIFE SOLUTIONS INC (BLFS) has 459 open-market insider trades by 21 insiders since 2005. Over the last six months insiders net sold $28.1M. The most active filer is Michael Rice.
| Name | Title | Tier | Trades | Value | Last Trade |
|---|---|---|---|---|---|
| Thomas Girschweiler | Dir | — | 4 | $72.4M | 2020-11-24 |
| WAVI Holding AG | 10% Owner | — | 11 | $60.0M | 2021-01-25 |
| Casdin Partners Master Fund, L.P. | 10% Owner | — | 5 | $59.8M | 2026-05-21 |
| Eli Casdin | 10% Owner | — | 3 | $55.8M | 2025-08-11 |
| Walter Villiger | 10% Owner | — | 16 | $50.7M | 2021-02-05 |
| Casdin Capital, LLC via Eli Casdin | 10% Owner | — | 2 | $48.2M | 2025-08-15 |
| Casdin Partners GP, LLC | 10% Owner | — | 4 | $44.4M | 2025-10-15 |
| Michael Rice | — | — | 89 | $31.2M | 2023-10-30 |
| Roderick de Greef | CEO | — | 55 | $25.6M | 2026-10-06 |
| Aby J. Mathew | CSOVP | — | 57 | $17.0M | 2026-10-06 |
| Insider | Title | Type | Value | Date |
|---|---|---|---|---|
| Casdin Partners Master Fund, L.P. | 10% Owner | Sell | $28.1M | 2026-05-19 |
| Karen A. Foster | — | Sell | $49K | 2026-03-23 |
| Karen A. Foster | — | Sell | $2.0M | 2026-03-05 |
| Todd Berard | CMO | Sell | $7K | 2026-03-03 |
| Troy Wichterman | CFO | Sell | $12K | 2026-03-03 |
| Sarah Aebersold | Chief Human Resources Officer | Sell | $5K | 2026-03-03 |
Companies that share insiders with BLFS, and sector peers with recent insider buying. Related by who files, not by how the stocks move.
| Aby J. Mathew | EVP & Chief Scientific Officer | Sell | $11K | 2026-03-03 |
| Sean Werner | CTO | Sell | $2K | 2026-03-03 |
| Karen A. Foster | Chief Quality and Operations | Sell | $9K | 2026-03-03 |
| Troy Wichterman | CFO | Sell | $25K | 2026-01-06 |
| Todd Berard | CMO | Sell | $9K | 2026-01-06 |
| Karen A. Foster | Chief Quality and Operations | Sell | $9K | 2026-01-06 |
| Aby J. Mathew | EVP & Chief Scientific Officer | Sell | $10K | 2026-01-06 |
| Sarah Aebersold | Chief Human Resources Officer | Sell | $6K | 2026-01-06 |
| Amy DuRoss | Director | Sell | $49K | 2025-12-15 |