Werner Sean 4

What Happened Sean Werner, Chief Technology Officer of BioLife Solutions (BLFS), had 1,681 shares withheld by the company to satisfy tax withholding obligations arising from the release of restricted stock units (RSUs). The withholding occurred on 2026-03-19 at an effective per-share value of $19.12, for a total of approximately $32,141. This was a tax-withholding/surrender of shares to the issuer—not an open-market sale.

Key Details

• Transaction date: 2026-03-19; Form 4 filed 2026-03-23.
• Transaction type/code: Tax withholding on RSU release (F).
• Shares involved: 1,681 shares withheld at $19.12 per share; total value ≈ $32,141.
• Shares owned after transaction: Not specified in the provided filing data.
• Footnote: F1 — shares were withheld by the issuer to satisfy the reporting person's tax withholding obligations upon RSU release.
• Filing timeliness: No late-filing flag indicated in the supplied data.

Context

• This was a routine cashless withholding to cover taxes when RSUs vested, not a market sale or purchase; such withholdings are common and do not by themselves indicate insider sentiment.
• Transaction code F indicates shares were surrendered to the company to satisfy tax obligations rather than sold on the open market.