Sera Prognostics Ownership & Insider Activity

Sera Prognostics (SERA) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 9.0% of shares outstanding. Institutional investors hold 11.0%. Over the past 90 days, insiders made 5 sales worth $63K.

Shares Outstanding

39.449M

Shares Float

31.330M

Insider Shares Owned

3.520M

Insider % Owned

9.0%

Institutional Shares Held

4.350M

Institutional % Held

11.0%

Ownership Breakdown

Net Insider Activity by Month

Purchases (90d)

Sales (90d)

$63K total

Net Activity

Net Selling

Net Value (90d)

-$63K

Sera Prognostics Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Sep 10, 2026	Lee Dyaarl Anderson Jr	CHIEF COMMERCIAL OFFICER	SELL	1.800K	$2.00	$4K
Sep 10, 2026	Zhenya Lindgardt	CHIEF EXECUTIVE OFFICER	SELL	7.022K	$2.00	$14K
Sep 10, 2026	Davis Eul Tiffany Inglis	CHIEF MEDICAL OFFICER	SELL	486.000	$2.00	$972
Sep 10, 2026	Benjamin Jackson	GENERAL COUNSEL	SELL	2.190K	$2.00	$4K
Sep 8, 2026	Zhenya Lindgardt	CHIEF EXECUTIVE OFFICER	SELL	20.139K	$2.00	$40K
Jun 11, 2026	Lee Dyaarl Anderson Jr	CHIEF COMMERCIAL OFFICER	SELL	4.739K	$2.01	$10K
Jun 11, 2026	Austin Aerts	CHIEF FINANCIAL OFFICER	SELL	2.037K	$2.01	$4K
Jun 11, 2026	Zhenya Lindgardt	CHIEF EXECUTIVE OFFICER	SELL	6.990K	$2.01	$14K
Jun 11, 2026	Davis Eul Tiffany Inglis	CHIEF MEDICAL OFFICER	SELL	362.000	$2.01	$728
Jun 11, 2026	Benjamin Jackson	GENERAL COUNSEL	SELL	2.179K	$2.01	$4K
Jun 9, 2026	Zhenya Lindgardt	CHIEF EXECUTIVE OFFICER	SELL	20.755K	$2.08	$43K
Jun 9, 2026	Austin Aerts	CHIEF FINANCIAL OFFICER	SELL	5.440K	$2.08	$11K
Jun 8, 2026	AJ Sandra Lawrence	—	SELL	1.560K	$2.15	$3K