Acadian Asset Management Inc.

Evaluation of Disclosure Controls and Procedures

Our management, including our principal executive officer, and our principal financial officer, evaluated the effectiveness of our disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) at December 31, 2025. Disclosure controls and procedures are designed to ensure that the information we are required to disclose in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time period specified in the SEC’s rule and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information we are required to disclose in the reports that we file or submit under the Exchange Act is accumulated and communicated to our management, including our principal executive officer and principal financial officer, to allow timely decisions regarding required disclosure. Our principal executive officer and principal financial officer participated in this evaluation and concluded that, as of December 31, 2025, our disclosure controls and procedures were effective.

Report of Management on Internal Control Over Financial Reporting

Management is responsible for establishing and maintaining adequate internal control over financial reporting.

Management has evaluated the effectiveness of internal control over financial reporting as of December 31, 2025 based on the criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on management’s assessment, management concluded that the Company’s internal control over financial reporting was effective as of December 31, 2025.

KPMG LLP, an independent registered public accounting firm, has audited the financial statements that are included in this Annual Report on Form 10-K and expressed an opinion thereon. KPMG LLP has also expressed an opinion on the effectiveness of internal control over financial reporting as of December 31, 2025, which is included herein.

Changes in Internal Control Over Financial Reporting

There have been no changes in our internal control over financial reporting that occurred during the fourth quarter of our fiscal year ended December 31, 2025 that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.