BONIFACE JOHN J.

PrivateCIK: 1870674
Location

SALT LAKE CITY, UT

BONIFACE JOHN J. (Chief Scientific Officer) sold 2.0% of their position (3.04K shares) of SERA PROGNOSTICS, INC. on the open market

Open‑market sale worth $6.0K — 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
-3.04K
Net shares
Net seller
$6.0K
Total sold
1
Open market trades
0B · 1S
1
Total transactions
3.04K disposed
Non-Derivative Transactions1

Class A Common Stock

Direct
S · Sale

Shares

3.04K

Price / share

$1.96

Trade value

$5.95K

% of position

2.0%
3/9/2026
150.40K147.36K
Total

Net shares

3.04K

Net value

-$5.95K

Derivative Transactions0
No derivative transactions reported
BONIFACE JOHN J. — Insider Transaction (Form 4) Filed Mar 10, 2026 | Finecho