Anderson Dyaarl Lee Jr. 4

What Happened

• Anderson Dyaarl Lee Jr., Chief Commercial Officer of Sera Prognostics (SERA), disposed of 4,739 shares on 2026-06-11 in an open-market/block sale. The reported weighted-average price was $2.01 per share, for total proceeds of approximately $9,525. This was a sale (routine) tied to tax withholding on vested restricted stock units, not an independent decision to divest.

Key Details

• Transaction date: 2026-06-11; Form 4 filed: 2026-06-15 (timely — within two business days).
• Reported amount sold: 4,739 shares at a weighted average price of $2.01; total reported proceeds ~$9,525.
• Shares owned after the transaction: not provided in the details you supplied.
• Footnote F1: Sale was to cover tax withholding obligations on vested RSUs — mandated by issuer’s "sell to cover" election (not a discretionary sale).
• Footnote F2: $2.01 is a weighted average; actual trade prices in the block ranged from $1.87 to $2.12. The reporting person can supply a per-price breakdown on request.
• Transaction codes: S = Sale; associated with tax-withholding (sell-to-cover) treatment.

Context

• Sell-to-cover transactions are common when RSUs vest: the company or insider sells a portion of shares to satisfy withholding taxes and do not necessarily indicate the insider’s view on company prospects.
• Because this was a tax-withholding sale (not a voluntary market sell), it carries less informational weight for investors than a discretionary sale or a purchase.