BONIFACE JOHN J.

PrivateCIK: 1870674
Location

SALT LAKE CITY, UT

BONIFACE JOHN J. (Chief Scientific Officer) sold 0.9% of their position (1.33K shares) of SERA PROGNOSTICS, INC. on the open market

Open‑market sale worth $4.4K — 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
-1.33K
Net shares
Net seller
$4.4K
Total sold
1
Open market trades
0B · 1S
1
Total transactions
1.33K disposed
Non-Derivative Transactions1

Class A Common Stock

Direct
S · Sale

Shares

1.33K

Price / share

$3.31

Trade value

$4.41K

% of position

0.9%
12/10/2025
151.73K150.40K
Total

Net shares

1.33K

Net value

-$4.41K

Derivative Transactions0
No derivative transactions reported
BONIFACE JOHN J. — Insider Transaction (Form 4) Filed Dec 11, 2025 | Finecho