Heyburn William A. 4

What Happened

• William A. Heyburn, Co-CEO, CFO and director of Strata Critical Medical (SRTA), received an award of 545,625 shares on 2026-04-23 as the payout of performance-based restricted stock units (PSUs). The shares were reported at $0.00 acquisition price (award).
• On 2026-04-24, 301,731 of those shares were disposed (withheld) by the issuer to satisfy tax withholding obligations at an indicated value of $4.92 per share, totaling $1,484,517. This withholding is a tax-related disposal, not an open-market sale.

Key Details

• Transaction types: A (award/grant) on 2026-04-23; F (shares withheld for tax withholding) on 2026-04-24.
• Prices and values: Awarded shares reported at $0.00; 301,731 shares withheld at $4.92 = $1,484,517.
• Footnotes: F1 — shares were issued upon certification that PSU performance criteria were met (PSUs granted 3/20/2025). F2 — shares withheld by issuer to satisfy tax withholding on vesting.
• Shares owned after transaction: Not specified in the provided filing.
• Filing timeliness: Report filed 2026-04-27 for transactions on 4/23–4/24. This filing date is four days after the first transaction and may be beyond the standard 2-business-day Form 4 deadline.

Context

• These transactions reflect compensation (performance-based RSUs converting to shares) and routine tax withholding rather than a voluntary open-market purchase or sale by the insider. Withheld shares to cover taxes are common and do not necessarily indicate a change in the insider’s market view.
• For retail investors, awards confirm performance goals were met and dilute outstanding shares; purchases would be a stronger direct bullish signal.