Heyburn William A. 4

What Happened William A. Heyburn, Co-CEO, Chief Financial Officer and a director of Strata Critical Medical, reported a disposition of 31,671 shares on 2026-06-08. The shares were recorded at $5.87 each for a total value of approximately $185,909. The filing shows the transaction as a sale (code S), and a footnote clarifies these shares were withheld by the issuer to satisfy tax withholding obligations related to the vesting of restricted stock units (RSUs).

Key Details

• Transaction date and price: 2026-06-08 at $5.87 per share; total ~$185,909.
• Transaction type: Reported as Sale (S); footnote F1 indicates shares were withheld for tax withholding on RSU vesting.
• Filing date and timeliness: Form 4 filed 2026-06-10 for a 2026-06-08 transaction (appears timely).
• Shares owned after transaction: Not reported in the provided filing excerpt.
• Notes: Footnote F1 — "Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units."

Context This disposition was tied to tax withholding for vested RSUs rather than an open-market investment decision. Withholdings to cover taxes are a routine administrative action and do not by themselves indicate insider sentiment about the company.