Acadian Asset Management Inc.
AAMI- Exchange
- NYSE
- Industry
- Investment Advice
- SEC CIK
- 0001748824
In the last 90 days, Acadian Asset Management Inc. insiders filed 0 open-market purchases and 1 sale; 302 institutions reported holding it in 13F filings for Q2 2026, worth $2.58B in total; Soros Fund Management is the only superinvestor holding it.
Holders of 5% or more of AAMI
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Acadian Asset Management Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Paulson & Co. Inc. | 13D/A | 21.60%7.74M shares | – | Sep 5, 20251 filing | Sep 5, 2025 | SEC |
| BlackRock, Inc. | 13G/A | 11.30%4.23M shares | −3.50 ppfrom 14.80% | Feb 5, 20252 filings | Apr 29, 2025 | SEC |
| Prudential Financial Inc | 13G | 5.90%2.13M shares | New | Aug 6, 20251 filing | Aug 6, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
9 Schedule 13D and 13G filings on Acadian Asset Management Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Nov 14, 20254:00 PM ET | Empyrean Capital Partners, LPand 1 other | 13G/A | 4.30%1.54M shares | –Below 5% | Sep 30, 2025 | SEC |
| Nov 5, 20251:26 PM ET | Jennison Associates LLC | 13G/A | 4.80%1.73M shares | −1.00 ppfrom 5.80%Below 5% | Sep 30, 2025 | SEC |
| Sep 5, 20254:48 PM ET | Paulson & Co. Inc. | 13D/A | 21.60%7.74M shares | – | Sep 3, 2025 | SEC |
| Aug 6, 20254:12 PM ET | Jennison Associates LLC | 13G | 5.80%2.09M shares | New | Jun 30, 2025 | SEC |
| Aug 6, 202510:56 AM ET | Prudential Financial Inc | 13G | 5.90%2.13M shares | New | Jun 30, 2025 | SEC |
| Apr 29, 20254:10 PM ET | BlackRock, Inc. | 13G/A | 11.30%4.23M shares | −3.50 ppfrom 14.80% | Mar 31, 2025 | SEC |
| Feb 14, 20259:09 AM ET | Azora Capital LPand 2 others | 13G/A | 4.20%1.57M shares | −1.20 ppfrom 5.40%Below 5% | Dec 31, 2024 | SEC |
| Feb 6, 20258:38 PM ET | Azora Capital LPand 2 others | 13G | 5.40%2.03M shares | New | Sep 30, 2024 | SEC |
| Feb 5, 20251:23 PM ET | BlackRock, Inc. | 13G/A | 14.80%5.52M shares | – | Dec 31, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Acadian Asset Management Inc. shares.
No Form 144 notices for Acadian Asset Management Inc. are on file.