Jackson Benjamin 4

4 · SERA PROGNOSTICS, INC. · Filed Jun 15, 2026

AI-generated summary of this filing

Updated Jun 15, 2026

Sera Prognostics (SERA) GC Jackson Benjamin Sells 2,179 Shares

What Happened

Jackson Benjamin, General Counsel of Sera Prognostics (ticker: SERA), disposed of 2,179 shares on 2026-06-11. The reported weighted-average price was $2.01, for total proceeds of roughly $4,380. The filing lists the sale as an open-market/private sale (code S).

Key Details

Transaction date: 2026-06-11; Form 4 filed: 2026-06-15.
Shares sold: 2,179 at a weighted-average price of $2.01; total proceeds ≈ $4,380.
Price range for the block trade: $1.87 to $2.12 (footnote F2). The filer can provide a breakdown of how many shares sold at each price upon request.
Footnote F1: Sale was a mandatory "sell-to-cover" to satisfy tax withholding on vested RSUs — not a discretionary sale by the insider.
Shares owned after the transaction: not specified in the provided filing.

Context

Sell-to-cover transactions are common when restricted stock units vest and the issuer requires tax withholding; they typically reflect tax administration rather than a personal view on the stock. The small dollar value (~$4.4k) makes this a routine, non-directional filing for most retail investors.

Form 4

Period: 2026-06-11

General Counsel

Transactions

Sale
Class A Common Stock
[F1][F2]
2026-06-11$2.01/sh−2,179$4,380→ 161,756 total

Footnotes (2)

[F1]Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.
[F2]The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $1.87 to $2.12, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade.

Signature

/s/ Benjamin G. Jackson|2026-06-15

1 file