Herb Cross

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
9 Feb 23	BCEL Atreca	Class A Common Stock	Grant	Acquire A	No	No	0	43,750	0.00	78,304
9 Feb 23	BCEL Atreca	Employee stock option Class A Common Stock	Grant	Acquire A	No	No	1.49	175,000	260.75 k	175,000
29 Sep 22	APGN Apexigen	Stock Option Common Stock	Grant	Acquire A	No	No	2.65	100,000	265.00 k	100,000
2 Sep 22	BCEL Atreca	Class A Common Stock	Sell	Dispose S	No	No	1.7752	7,646	13.57 k	34,554
13 Jun 22	BCEL Atreca	Employee stock option Class A Common Stock	Sale back to company	Dispose D	No	No	22.07	97,000	2.14 mm	0
13 Jun 22	BCEL Atreca	Employee stock option Class A Common Stock	Grant	Acquire A	No	No	1.845	97,000	178.97 k	97,000
13 Jun 22	BCEL Atreca	Employee stock o16.74ption Class A Common Stock	Sale back to company	Dispose D	No	No	12.06	224,999	2.71 mm	0
13 Jun 22	BCEL Atreca	Employee stock option Class A Common Stock	Grant	Acquire A	No	No	1.845	224,999	415.12 k	224,999
13 Jun 22	BCEL Atreca	Employee stock option Class A Common Stock	Sale back to company	Dispose D	No	No	13.97	95,000	1.33 mm	0
13 Jun 22	BCEL Atreca	Employee stock option Class A Common Stock	Grant	Acquire A	No	No	1.845	95,000	175.28 k	95,000

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