BONIFACE JOHN J.

PrivateCIK: 1870674
Location

SALT LAKE CITY, UT

BONIFACE JOHN J. (Chief Scientific Officer) sold 4.9% of their position (7.77K shares) of SERA PROGNOSTICS, INC. on the open market

Open‑market sale worth $20.3K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderBONIFACE JOHN J.CIK 1870674
IssuerSERA PROGNOSTICS, INC.CIK 1534969
Officer· Chief Scientific Officer
Since Jul 2021
-7.77K
Net shares
Net seller
$20.3K
Total sold
1
Open market trades
0B · 1S
1
Total transactions
7.77K disposed
Non-Derivative Transactions1

Class A Common Stock

Direct
S · Sale

Shares

7.77K

Price / share

$2.62

Trade value

$20.35K

% of position

4.9%
11/10/2025
159.49K151.73K
Total

Net shares

7.77K

Net value

-$20.35K

Derivative Transactions0
No derivative transactions reported
BONIFACE JOHN J. — Insider Transaction (Form 4) Filed Nov 12, 2025 | Finecho