# EDGAR Filing Document

**Accession Number:** 0001035674
**File Stem:** 0001013594-25-001141
**Filing Date:** 2025-9
**Character Count:** 6817
**Document Hash:** e74af180b402849aea5ccb1dfe5c9b90
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001013594-25-001141.hdr.sgml**: 20250905

**ACCESSION NUMBER**: 0001013594-25-001141

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D/A

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20250905

**DATE AS OF CHANGE**: 20250905

**SUBJECT COMPANY**: 

**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:** SCHEDULE 13D/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-91234
- **FILM NUMBER:** 251297283

**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
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** PAULSON & CO. INC.
- **CENTRAL INDEX KEY:** 0001035674

**ORGANIZATION NAME:**
- **EIN:** 133796759
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A

**BUSINESS ADDRESS:**
- **STREET 1:** 15 EXCHANGE PLACE
- **CITY:** JERSEY CITY
- **STATE:** NJ
- **ZIP:** 07302
- **BUSINESS PHONE:** 212-956-2221

**MAIL ADDRESS:**
- **STREET 1:** 15 EXCHANGE PLACE
- **CITY:** JERSEY CITY
- **STATE:** NJ
- **ZIP:** 07302

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PAULSON & CO INC
- **DATE OF NAME CHANGE:** 19970313

## Ex-1

#### Exhibit 1
Transactions in the Common Stock of the Issuer by Reporting Persons During the Past 60 Days.

---

| | | | | |
|:---|:---|:---|:---|:---|
| <u>Date</u> | <u>Buy/Sell</u> | <u>Security</u> | Approximate<br> <u>Price Per Share</u> | Amount of Shares<u> </u><br> <u>Bought/(Sold)</u> |
| 09/03/2025 | Sell | Common Stock | $47.69 | (1206839) |

---

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**(Amendment No. 6)**

**Acadian Asset Management Inc.**

*(Name of Issuer)*

**Common Stock, par value $0.001 per share (the "Common Stock")**

*(Title of Class of Securities)*

**10948W103**

*(CUSIP Number)*

**Kelly Zelezen**<br>Kleinberg, Kaplan, Wolff & Cohen, P.C.<br>500 Fifth Avenue<br>New York NY 10110<br>212-986-6000

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**09/03/2025**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **10948W103** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**PAULSON & CO. INC.** | Name of reporting person<br>**PAULSON & CO. INC.** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**7743282.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**7743282.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**7743282.00** | Aggregate amount beneficially owned by each reporting person<br>**7743282.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**21.6%** | Percent of class represented by amount in Row (11)<br>**21.6%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**CO** | Type of Reporting Person (See Instructions)<br>**CO** | |

---

**Comment for Reporting Person:** Comment for Type of Reporting Person: Note to Items 7, 9, 11: See Note 1 to Item 5 below

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Common Stock, par value $0.001 per share (the "Common Stock")

**(b) Name of Issuer:**
Acadian Asset Management Inc.

**(c) Address of Issuer's Principal Executive Offices:**
200 STATE STREET, SUITE 601A, BOSTON, MA, 02109

The following constitutes Amendment No. 6 to the Schedule 13D previously filed by the undersigned ("Amendment No. 6") with respect to Acadian Asset Management Inc.  This Amendment No. 6 amends the Schedule 13D as specifically set forth herein.

**Item 5. Interest in Securities of the Issuer**

**(a)**
The aggregate percentage of Common Stock reported owned by the Reporting Person is based upon 35,811,913 shares of Common Stock outstanding as of August 5, 2025, as disclosed in the Issuer's Quarterly Report on Form 10-Q, filed with the Securities Exchange Commission on August 7, 2025.  As of the date hereof, the Reporting Person may be deemed to have beneficially owned approximately 21.6% of the outstanding Common Stock.

**(b)**
Number of shares of Common Stock as to which Paulson has:

(i) Sole power to vote or direct the vote: 7,743,282 (see Note 1).
(ii) Shared power to vote or direct the vote: 0
(iii) Sole power to dispose or direct the disposition: 7,743,282 (see Note 1).
(iv) Shared power to dispose or direct the disposition: 0

**(c)**
The transactions effected by the Reporting Person during the past 60 days are set forth on Exhibit 1 attached hereto.

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** PAULSON & CO. INC.

**Signature:** /s/ Stuart L. Merzer

**Name/Title:** Stuart L. Merzer,  General Counsel & Chief Compliance Officer

**Date:** 09/05/2025