HARRISON ROBERT GARDNER

PrivateCIK: 1421563
Location

SALT LAKE CITY, UT

HARRISON ROBERT GARDNER (Chief Information Officer) sold 0.7% of their position (616.00 shares) of SERA PROGNOSTICS, INC. on the open market

Open‑market sale worth $2.0K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderHARRISON ROBERT GARDNERCIK 1421563
IssuerSERA PROGNOSTICS, INC.CIK 1534969
Officer· Chief Information Officer
Since Nov 2021
-616.00
Net shares
Net seller
$2.0K
Total sold
1
Open market trades
0B · 1S
1
Total transactions
616.00 disposed
Non-Derivative Transactions1

Class A Common Stock

Direct
S · Sale

Shares

616.00

Price / share

$3.31

Trade value

$2.04K

% of position

0.7%
12/10/2025
87.40K86.79K
Total

Net shares

616.00

Net value

-$2.04K

Derivative Transactions0
No derivative transactions reported
HARRISON ROBERT GARDNER — Insider Transaction (Form 4) Filed Dec 11, 2025 | Finecho