HARRISON ROBERT GARDNER

PrivateCIK: 1421563
Location

SALT LAKE CITY, UT

HARRISON ROBERT GARDNER (Chief Information Officer) sold 4.2% of their position (3.36K shares) of SERA PROGNOSTICS, INC. on the open market

Open‑market sale worth $6.6K — 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
-3.36K
Net shares
Net seller
$6.6K
Total sold
1
Open market trades
0B · 1S
1
Total transactions
3.36K disposed
Non-Derivative Transactions1

Class A Common Stock

Direct
S · Sale

Shares

3.36K

Price / share

$1.96

Trade value

$6.59K

% of position

4.2%
3/9/2026
80.79K77.43K
Total

Net shares

3.36K

Net value

-$6.59K

Derivative Transactions0
No derivative transactions reported
HARRISON ROBERT GARDNER — Insider Transaction (Form 4) Filed Mar 10, 2026 | Finecho