X0407 4 2023-04-18 0 0001893219 Atlantic Coastal Acquisition Corp. II ACAB 0001848131 Ahmad Shahraab 49 CATHCART ROAD LONDON X0 SW10 9JE UNITED KINGDOM 1 1 1 0 Chairman and CEO 0001893205 Atlantic Coastal Acquisition Management II LLC 6 ST JOHNS LANE, FLOOR 5 NEW YORK NY 10013 0 0 1 0 0 Series A Common Stock, par value $0.0001 per share 2023-04-18 4 M 0 7199999 A 7199999 I See Footnote Series B Common Stock, par value $0.0001 per share 2023-04-18 4 M 0 7199999 D Series A Common Stock, par value $0.0001 per share 7199999 1 I See Footnote On April 18, 2023 the Reporting Person elected to exercise their right to convert 7,199,999 shares of Series B Common Stock into 7,199,999 shares of Series A Common Stock. Atlantic Coastal Acquisition Management II LLC is the record holder of the securities reported herein. Shahraab Ahmad is the managing member of Atlantic Coastal Acquisition Management II LLC and has sole voting and investment discretion with respect to the securities held of record by Atlantic Coastal Acquisition Management II LLC. Mr. Ahmad disclaims any beneficial ownership of the securities held by Atlantic Coastal Acquisition Management II LLC. The Series B Common Stock are convertible into the Issuer's Series A Common Stock on a one-for-one basis, subject to adjustment pursuant to certain anti-dilution rights, as described under the heading "Description of Securities-Common Stock" in the Issuer's registration statement on Form S-1 (File No. 333-261459) and the Issuer's DEF 14A filed March 20th, 2023 and have no expiration date. By: Atlantic Coastal Acquisition Management II LLC, /s/ Shahraab Ahmad, Managing Member 2023-04-19 By: /s/ Shahraab Ahmad 2023-04-19