BIOLIFE SOLUTIONS INC — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Aebersold Sarah | Chief Human Resources Officer | Sale | 233 | $25.13 | $5,855 | 76,719 | Dec 15, 2025 |
| DuRoss Amy | — | Sale | 2,000 | $24.60 | $49,200 | 18,687 | Dec 15, 2025 |
| Mathew Aby J. | EVP & Chief Scientific Officer | Sale | 631 | $25.13 | $15,857 | 349,755 | Dec 9, 2025 |
| Wichterman Troy | Chief Financial Officer | Sale | 1,033 | $25.13 | $25,959 | 151,736 | Dec 9, 2025 |
| Berard Todd | Chief Marketing Officer | Sale | 358 | $25.13 | $8,997 | 132,908 | Dec 9, 2025 |
| Foster Karen A. | Chief Quality and Operations | Sale | 519 | $25.13 | $13,042 | 192,319 | Dec 9, 2025 |
| Wichterman Troy | Chief Financial Officer | Sale | 30,000 | $25.72 | $771,600 | 152,769 | Dec 4, 2025 |
| Werner Sean | Chief Technology Officer | Sale | 110 | $26.74 | $2,941 | 25,927 | Nov 25, 2025 |
| DuRoss Amy | — | Sale | 2,000 | $27.00 | $54,000 | 20,687 | Nov 25, 2025 |
| Berard Todd | Chief Marketing Officer | Sale | 351 | $26.74 | $9,386 | 133,266 | Nov 25, 2025 |
| Wichterman Troy | Chief Financial Officer | Sale | 584 | $26.74 | $15,616 | 182,769 | Nov 25, 2025 |
| Aebersold Sarah | Chief Human Resources Officer | Sale | 217 | $26.74 | $5,803 | 76,952 | Nov 25, 2025 |
| Foster Karen A. | Chief Quality and Operations | Sale | 415 | $26.74 | $11,097 | 192,838 | Nov 25, 2025 |
| Mathew Aby J. | EVP & Chief Scientific Officer | Sale | 526 | $26.74 | $14,065 | 350,386 | Nov 25, 2025 |
| DuRoss Amy | — | Sale | 1,000 | $26.00 | $26,000 | 24,687 | Nov 20, 2025 |
| DE GREEF RODERICK | President and CEO | Sale | 35,417 | $26.15 | $926,155 | 454,581 | Nov 12, 2025 |
| GOSWAMI JOYDEEP | — | Sale | 1,666 | $28.99 | $48,297 | 44,986 | Oct 24, 2025 |
| DE GREEF RODERICK | President and CEO | Sale | 37,795 | $27.30 | $1,031,804 | 489,998 | Oct 22, 2025 |
| Werner Sean | Chief Technology Officer | Sale | 275 | $27.82 | $7,651 | 26,037 | Oct 20, 2025 |
| GOSWAMI JOYDEEP | — | Sale | 1,334 | — | — | 46,652 | Oct 16, 2025 |
| Casdin Partners GP, LLC | — | Sale | 750,000 | $28.55 | $21,412,500 | 5,957,165 | Oct 15, 2025 |
| Wichterman Troy | Chief Financial Officer | Sale | 833 | $27.36 | $22,791 | 183,353 | Oct 9, 2025 |
| Berard Todd | Chief Marketing Officer | Sale | 289 | $27.36 | $7,907 | 133,617 | Oct 9, 2025 |
| Mathew Aby J. | EVP & Chief Scientific Officer | Sale | 509 | $27.36 | $13,926 | 350,912 | Oct 9, 2025 |
| Aebersold Sarah | Chief Human Resources Officer | Sale | 188 | $27.36 | $5,144 | 77,169 | Oct 9, 2025 |
| Foster Karen A. | Chief Quality and Operations | Sale | 419 | $27.36 | $11,464 | 193,253 | Oct 9, 2025 |
| Aebersold Sarah | Chief Human Resources Officer | Sale | 714 | $25.61 | $18,286 | 77,357 | Sep 15, 2025 |
| Foster Karen A. | Chief Quality and Operations | Sale | 511 | $26.83 | $13,710 | 193,672 | Sep 11, 2025 |
| Mathew Aby J. | EVP & Chief Scientific Officer | Sale | 630 | $26.83 | $16,903 | 351,421 | Sep 11, 2025 |
| Wichterman Troy | Chief Financial Officer | Sale | 1,032 | $26.83 | $27,689 | 184,186 | Sep 11, 2025 |
| Berard Todd | Chief Marketing Officer | Sale | 358 | $26.83 | $9,605 | 133,906 | Sep 11, 2025 |
| Aebersold Sarah | Chief Human Resources Officer | Sale | 233 | $26.83 | $6,251 | 78,071 | Sep 11, 2025 |
| Werner Sean | Chief Technology Officer | Sale | 72 | $26.83 | $1,932 | 26,312 | Sep 11, 2025 |
| Mathew Aby J. | EVP & Chief Scientific Officer | Sale | 531 | $25.44 | $13,509 | 352,051 | Aug 26, 2025 |
| Foster Karen A. | Chief Quality and Operations | Sale | 413 | $25.44 | $10,507 | 194,183 | Aug 26, 2025 |
| Werner Sean | Chief Technology Officer | Sale | 111 | $25.44 | $2,824 | 26,384 | Aug 26, 2025 |
| Wichterman Troy | Chief Financial Officer | Sale | 590 | $25.44 | $15,010 | 185,218 | Aug 26, 2025 |
| Aebersold Sarah | Chief Human Resources Officer | Sale | 219 | $25.44 | $5,571 | 78,304 | Aug 26, 2025 |
| Berard Todd | Chief Marketing Officer | Sale | 354 | $25.44 | $9,006 | 134,264 | Aug 26, 2025 |
| Berard Todd | Chief Marketing Officer | Sale | 10,000 | $25.53 | $255,300 | 124,618 | Aug 25, 2025 |
| Casdin Capital, LLC | — | Sale | 500,000 | $24.40 | $12,200,000 | 6,707,165 | Aug 15, 2025 |
| Casdin Eli | — | Sale | 500,000 | $22.60 | $11,300,000 | 7,207,165 | Aug 11, 2025 |
| Werner Sean | Chief Technology Officer | Sale | 1,115 | $21.22 | $23,660 | 26,495 | Jul 18, 2025 |
| Aebersold Sarah | Chief Human Resources Officer | Sale | 198 | $22.27 | $4,409 | 78,523 | Jul 7, 2025 |
| Foster Karen A. | Chief Quality and Operations | Sale | 400 | $22.27 | $8,908 | 194,596 | Jul 7, 2025 |
| Wichterman Troy | Chief Financial Officer | Sale | 877 | $22.27 | $19,531 | 185,808 | Jul 7, 2025 |
| Mathew Aby J. | EVP & Chief Scientific Officer | Sale | 536 | $22.27 | $11,937 | 352,582 | Jul 7, 2025 |
| Berard Todd | Chief Marketing Officer | Sale | 304 | $22.27 | $6,770 | 134,618 | Jul 7, 2025 |
| Aebersold Sarah | Chief Human Resources Officer | Sale | 711 | $22.23 | $15,806 | 78,721 | Jun 16, 2025 |
| Casdin Eli | — | Sale | 1,000,000 | $23.80 | $23,800,000 | 7,707,165 | Jun 10, 2025 |