Kerri Mooney - Mar 9, 2023 Form 4 Insider Report for CAMBRIDGE BANCORP (CATC)

Role: SVP Dir. of Banking Offices
Signature: /s/Michael Carotenuto, as Attorney-in-Fact
Stock symbol: CATC
Transactions as of: Mar 9, 2023
Transactions value $: $124,741
Form type: 4
Date filed: 3/10/2023, 03:38 PM
Previous filing: Feb 17, 2023
Next filing: May 1, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CATC	Common Stock	Award	$125K	+1.69K	+62.85%	$74.03	4.37K	Mar 9, 2023	Direct	F1
holding	CATC	Common Stock						323	Mar 9, 2023	ESOP

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	This PRSU award was eligible to vest based upon the Bank's average three year-performance relative to the Commercial Bank Peer Group for operating return on assets and operating diluted earnings per share growth for the period ending December 31, 2022. Based on the Company's performance through December 31, 2022, the Compensation Committee determined that these awards would vest at 106.8% of target.

Content

This PRSU award was eligible to vest based upon the Bank's average three year-performance relative to the Commercial Bank Peer Group for operating return on assets and operating diluted earnings per share growth for the period ending December 31, 2022. Based on the Company's performance through December 31, 2022, the Compensation Committee determined that these awards would vest at 106.8% of target.