Peter J. Halberstadt

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
12 Jul 24	CATC Cambridge Bancorp	Common Stock	Sale back to company	Dispose D	Yes	No	0	1,329	0.00	0
12 Jul 24	CATC Cambridge Bancorp	Common Stock	Sale back to company	Dispose D	No	No	0	3,886	0.00	0
28 Apr 24	CATC Cambridge Bancorp	Common Stock	Payment of exercise	Dispose F	No	No	64.28	107	6.88 k	3,886
6 Mar 24	CATC Cambridge Bancorp	Common Stock	Grant	Acquire A	No	No	0	157	0.00	3,993
15 Feb 24	CATC Cambridge Bancorp	Common Stock	Payment of exercise	Dispose F	No	No	68.39	32	2.19 k	3,836
21 Jan 24	CATC Cambridge Bancorp	Common Stock	Payment of exercise	Dispose F	No	No	67.32	35	2.36 k	3,868
17 Jan 24	CATC Cambridge Bancorp	Common Stock	Payment of exercise	Dispose F	No	No	65.62	35	2.30 k	3,903

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