Jackson Benjamin 4

What Happened

• Benjamin Jackson, General Counsel of Sera Prognostics (SERA), disposed of 1,027 shares on March 11, 2026. The Form 4 reports a weighted-average price of $2.04 per share for total proceeds of $2,095. The transaction is recorded as a sale (S) and was done to satisfy tax-withholding obligations tied to the vesting of restricted stock units (RSUs), not as a discretionary open-market sale.

Key Details

• Transaction date: 2026-03-11; Filing date (Form 4): 2026-03-12 (timely filing).
• Reported weighted-average price: $2.04; aggregate proceeds: $2,095.
• Footnote F1: Sale was mandated by the issuer as a "sell-to-cover" to satisfy RSU tax withholding — not a discretionary trade by the insider.
• Footnote F2: The $2.04 is a weighted average; the block trade included multiple transactions at prices ranging from $1.90 to $2.30. The reporting person will provide a breakdown of shares sold at each price upon request.
• Shares owned after the transaction: Not disclosed in the provided filing summary.

Context

• "Sell-to-cover" transactions are common when RSUs vest: a portion of shares are sold automatically to cover required taxes and usually do not signal the insider's view of the company's prospects.
• Jackson is an executive officer (General Counsel), not a disclosed 10% owner; this was a routine tax-related sale rather than an optional market purchase or a strategic divestiture.