SERA - Sera Prognostics, Inc.

Over the past 90 days, insiders at Sera Prognostics, Inc. (SERA) have been net sellers, shedding 39,661 shares worth roughly $80K on balance. In the past 30 days, 0 insiders bought and 1 sold.

The insider who sold still holds shares after the sale.

Compare Health Care sector insider flows →

Insider Ownership

Role	Insider	Shares	Value	30d
Dir	Gregory C Critchfield	846.9K	$1.63M	-
CEO	Zhenya Lindgardt	837.8K	$1.62M	-
CFO	Austin Aerts	301.2K	$581.3K	-
Other	Paul Kearney	164.0K	$316.4K	-
Other	Benjamin Jackson	159.6K	$308.0K	-

Activity

Buys and sells only

Transactions

10 filings · page 4

Date	Insider	Role	Type	Shares	Price	Value	Chg%	3M	12M
Dec 10, 2025	Paul Kearney77	Chief Data Officer	Sell	1,213	$3.31	$4,015.03	-0.7%	-46.8%	-
Dec 10, 2025	Benjamin Jackson80	General Counsel	Sell	892	$3.31	$2,952.52	-0.7%	-46.8%	-
Dec 10, 2025	Robert Gardner Harrison75	Chief Information Officer	Sell	616	$3.31	$2,038.96	-0.7%	-46.8%	-
Dec 10, 2025	Austin Aerts76	Chief Financial Officer	Sell	873	$3.31	$2,889.63	-0.3%	-46.8%	-
Dec 10, 2025	John J. Boniface56	Chief Scientific Officer	Sell	1,332	$3.31	$4,408.92	-0.9%	-46.8%	-
Dec 9, 2025	Zhenya Lindgardt75	Chief Executive Officer	Sell	28,215	$3.04	$85,773.60	-3.5%	-37.1%	-
Dec 9, 2025	Austin Aerts76	Chief Financial Officer	Sell	5,232	$3.04	$15,905.28	-1.9%	-37.1%	-
Dec 8, 2025	Sandra Aj Lawrence56	Director	Sell10b5-1	1,560	$3.05	$4,758.00	-7.4%	-36.7%	-
Dec 5, 2025	Mansoor Raza Mirza79	Director	Sell	292	$3.05	$890.60	-0.5%	-33.4%	-
Dec 2, 2025	Robert Gardner Harrison75	Chief Information Officer	Sell10b5-1	2,000	$2.93	$5,860.00	-2.2%	-23.1%	-

Understand these filings

How to Read SEC Form 4 Filings →Understanding Insider Buying Signals →What is Insider Trading? A Complete Guide →Cluster Buying: When Multiple Insiders Buy Together →

Insider	Role	Shares	Value	Buys	Sells

Date	Ticker	Insider	Role	Type	Shares	Price	Value	Chg%	SEC