Anderson Dyaarl Lee Jr. 4

What Happened Anderson Dyaarl Lee Jr., Chief Commercial Officer of Sera Prognostics, reported an acquisition of 3,168 shares on 2026-05-29. The shares were purchased at $1.84 per share for a total reported cost of $5,829. This was a purchase/acquisition (code A) under the company’s employee purchase plan, not a sale.

Key Details

• Transaction date and price: 2026-05-29, 3,168 shares at $1.84 each.
• Total value: $5,829.
• Shares owned after transaction: not disclosed in the filing.
• Footnote: Shares were purchased under the Sera Prognostics, Inc. 2021 Employee Stock Purchase Plan (ESPP) for the Dec 1, 2025–May 29, 2026 purchase period and were exempt under Rule 16b-3(d) and Rule 16b-3(c) (per footnote F1).
• Filing: Form 4 filed 2026-06-01 (appears timely under the two-business-day rule).

Context This was an ESPP purchase — a scheduled, plan-based acquisition that is typically exempt under Rule 16b-3 and common for employees. The dollar amount is modest ($5.8k), so while purchases can be informative, this is a routine employee-plan buy rather than a large insider investment. The filing shows acquisition only; no immediate sale or cashless exercise was reported.