# EDGAR Filing Document

**Accession Number:** 0001748824
**File Stem:** 0001628280-26-028387
**Filing Date:** 2026-4
**Character Count:** 1396
**Document Hash:** e7a4993f80f49773ab4d3802a61d9484
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001628280-26-028387.hdr.sgml**: 20260429

**ACCESSION NUMBER**: 0001628280-26-028387

**CONFORMED SUBMISSION TYPE**: ARS

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20260429

**DATE AS OF CHANGE**: 20260429

**EFFECTIVENESS DATE**: 20260429

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Acadian Asset Management Inc.
- **CENTRAL INDEX KEY:** 0001748824
- **STANDARD INDUSTRIAL CLASSIFICATION:** INVESTMENT ADVICE [6282]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 471121020
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** ARS
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-38979
- **FILM NUMBER:** 26916262

**BUSINESS ADDRESS:**
- **STREET 1:** 200 STATE STREET
- **STREET 2:** SUITE 601A
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02109
- **BUSINESS PHONE:** 6173697300

**MAIL ADDRESS:**
- **STREET 1:** 200 STATE STREET
- **STREET 2:** SUITE 601A
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02109

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** BrightSphere Investment Group Inc.
- **DATE OF NAME CHANGE:** 20190227

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** BrightSphere US Inc.
- **DATE OF NAME CHANGE:** 20180801

### Attached PDF Documents

**Attachment 1:** `arsforfiling-acadianassetm.pdf`

_No text found in this document._