Other Information.
−Removed: During our fiscal quarter ended March 31, 2026, none of our directors or officers (as defined in Rule 16a-1(f) under the Securities Exchange Act of 1934, as amended) entered into , modified (as to amount, price or timing of trades) or terminated (i) contracts, instructions or written plans for the purchase or sale of our securities that are intended to satisfy the conditions specified in Rule 10b5-1(c) under the Exchange Act for an affirmative defense against liability for trading in securities on the basis of material nonpublic information or (ii) non-Rule 10b5-1 trading arrangements (as defined in Item 408(c) of Regulation S-K).
+Added: During our fiscal quarter ended June 30, 2026, none of our directors or officers (as defined in Rule 16a-1(f) under the Securities Exchange Act of 1934, as amended) entered into , modified (as to amount, price or timing of trades) or terminated (i) contracts, instructions or written plans for the purchase or sale of our securities that are intended to satisfy the conditions specified in Rule 10b5-1(c) under the Exchange Act for an affirmative defense against liability for trading in securities on the basis of material nonpublic information or (ii) non-Rule 10b5-1 trading arrangements (as defined in Item 408(c) of Regulation S-K).
3.1 Amended and Restated Certificate of Incorporation, adopted as of July 12, 2019, incorporated herein by reference to Exhibit 3.1 to the Annual Report on Form 10-K filed on February 27, 2025.
1 unchanged sentence
3.3 Amended and Restated Bylaws, adopted as of May 12, 2025, incorporated herein by reference to Exhibit 3.1 to the Current Report on Form 8-K filed on May 16, 2025.
−Removed: First Amendment to the Amended and Restated Acadian Asset Management LLC Bonus Plan, effective December 31, 2025.
+Added: 10.1 Acadian Asset Management Inc.
+Added: 2026 Equity Incentive Plan, incorporated herein by reference to Exhibit 10.1 to the Current Report on Form 8-K filed on June 11, 2026.
+Added: 10.2* Form of Acadian Asset Management Inc.
+Added: Restricted Stock Unit Award Agreement for Employees.
+Added: 10.3* Form of Acadian Asset Management Inc.
+Added: Restricted Stock Unit Award Agreement (Performance-Vesting TSR).
+Added: 10.4* Form of Acadian Asset Management Inc.
+Added: Restricted Stock Unit Award Agreement (Performance-Vesting NCCF).
+Added: 10.5* Form of Acadian Asset Management Inc.
+Added: Restricted Stock Unit Award Agreement for Non-Executive Directors.
+Added: 10.6* Second Amended and Restated Acadian Asset Management LLC Bonus Plan, effective June 5, 2026.
31.1* Certification of the Company’s Chief Executive Officer pursuant to Exchange Act Rules 13a-14(a)/15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
5 unchanged sentences
101* Interactive data files pursuant to Rule 405 of Regulation S-T:
−Removed: (i) the Condensed Consolidated Balance Sheets as of March 31, 2026 and December 31, 2025, (ii) the Condensed Consolidated Statements of Operations for the three months ended March 31, 2026 and 2025, (iii) the Condensed Consolidated Statements of Comprehensive Income for the three months ended March 31, 2026 and 2025, (iv) the Condensed Consolidated Statements of Changes in Stockholders’ Equity for the three months ended March 31, 2026 and 2025, (v) the Condensed Consolidated Statements of Cash Flows for the three months ended March 31, 2026 and 2025 and (vi) the Notes to Financial Statements.
+Added: (i) the Condensed Consolidated Balance Sheets as of June 30, 2026 and December 31, 2025, (ii) the Condensed Consolidated Statements of Operations for the three and six months ended June 30, 2026 and 2025, (iii) the Condensed Consolidated Statements of Comprehensive Income for the three and six months ended June 30, 2026 and 2025, (iv) the Condensed Consolidated Statements of Changes in Stockholders’ Equity for the three and six months ended June 30, 2026 and 2025, (v) the Condensed Consolidated Statements of Cash Flows for the six months ended June 30, 2026 and 2025 and (vi) the Notes to Financial Statements.
104* The cover page of this Quarterly Report on Form 10-Q, formatted in Inline eXtensible Business Reporting Language
3 unchanged sentences
Acadian Asset Management Inc.
+Added: August 6, 2026
/s/ Kelly Young
9 unchanged sentences
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.