HARRISON ROBERT GARDNER

PrivateCIK: 1421563
Location

SALT LAKE CITY, UT

HARRISON ROBERT GARDNER (Chief Information Officer) sold 2.2% of their position (2K shares) of SERA PROGNOSTICS, INC. on the open market

Open‑market sale worth $5.9K — 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
-2K
Net shares
Net seller
$5.9K
Total sold
1
Open market trades
0B · 1S
1
Total transactions
2K disposed
Non-Derivative Transactions1

Class A Common Stock

Direct
S · Sale

Shares

2K

Price / share

$2.93

Trade value

$5.86K

% of position

2.2%
12/2/2025
89.40K87.40K
Total

Net shares

2K

Net value

-$5.86K

Derivative Transactions0
No derivative transactions reported
HARRISON ROBERT GARDNER — Insider Transaction (Form 4) Filed Dec 3, 2025 | Finecho