Robert Gardner Harrison

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
7 Mar 25	SERA Sera Prognostics	Class A Common Stock	Sell	Dispose S	No	Yes	4.16	3,874	16.12 k	121,757
6 Mar 25	SERA Sera Prognostics	Class A Common Stock	Sell	Dispose S	No	No	4.16	3,251	13.52 k	125,631
5 Mar 25	SERA Sera Prognostics	Class A Common Stock	Grant	Acquire A	No	No	0	25,770	0.00	128,882
5 Mar 25	SERA Sera Prognostics	Stock Option Class A Common Stock	Grant	Acquire A	No	No	4.2	36,830	154.69 k	36,830
13 Feb 25	SERA Sera Prognostics	Class A Common Stock	Sell	Dispose S	No	Yes	4.28	3,610	15.45 k	103,112
12 Feb 25	SERA Sera Prognostics	Class A Common Stock	Sell	Dispose S	No	No	4.58	7,297	33.42 k	106,722
11 Feb 25	SERA Sera Prognostics	Class A Common Stock	Sell	Dispose S	No	Yes	3.97	554	2.20 k	114,019

Data from 3, 4 and 5 filings. Values as filed, not updated for current price.