Companies / Acadian Asset Management Inc.
Acadian Asset Management Inc.
NYSE: AAMICIK 1748824BOSTON, MA
Financials · FY2025
Ownership
35.5M shares outstanding · as of Aug 4, 2026
Ownership
| Insiders | 0.85% | 302,142 |
| 10%+ / strategic | 21.84% | 7,752,504 |
| Institutions | 71.84% | 25,497,763 |
| Public float | 5.46% | 1,937,719 |
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 8
View all →| Insider | % of shares | Shares |
|---|---|---|
PAULSON & CO. INC.10% owner | 16.46% | 5,843,282 |
Hart Richard JonathanCLO and CAO | 0.49% | 173,863 |
Chersi Robert JDirector | 0.11% | 37,384 |
Trebbi BarbaraDirector | 0.10% | 35,771 |
Paulson JohnDirector · 10% owner | 0.08% | 29,510 |
Wiater ChristinaPFO / PAO | 0.07% | 25,614 |
Hynes ScottChief Financial Officer | — | — |
Young KellyCEOPresident and CEO · Director | — | — |
Institutional holders 262
View all →| Holder | Value | % of shares |
|---|---|---|
| $421.39M | 21.82% | |
| $320.88M | 12.64% | |
| $109.76M | 6.58% | |
| $89.73M | 5.38% | |
| $87.57M | 3.45% | |
| $71.19M | 3.69% | |
| $42.73M | 2.56% | |
| $40.70M | 2.11% | |
| $39.74M | 2.38% | |
| $35.31M | 1.83% |
Activity
InsidersInstitutions
What insiders are doing in this stock (Form 4).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Jun 17, 2026 | PAULSON & CO. INC. 10% owner | Sell | Common Stock, par value $0.001 | $146.78M | -1.9M -24.54% | 5,843,282 16.46% of shares | high |
| Feb 11, 2026 | Chersi Robert J Director | Sell | Common Stock | $1.48M | -29K -43.47% | 37,384 0.11% of shares | medium |
| Feb 10, 2026 | Trebbi Barbara Director | Sell | Common Stock | $496.3K | -10K -21.32% | 35,771 0.10% of shares | medium |
| Feb 15, 2026 | Hart Richard Jonathan Executive | Other | Common Stock | $239.4K | -5K -2.59% | 173,863 0.49% of shares | low |
| Feb 14, 2026 | Hart Richard Jonathan Executive | Other | Common Stock | $144.2K | -3K -1.62% | 168,931 0.48% of shares | low |
| Feb 15, 2026 | Wiater Christina Executive | Other | Common Stock | $78.9K | -2K -5.61% | 25,614 0.07% of shares | low |
| Feb 14, 2026 | Wiater Christina Executive | Other | Common Stock | $61.0K | -1K -5.08% | 21,955 0.06% of shares | low |
| May 14, 2026 | Paulson John Director | Exercise | Common Stock | $0 | +6K +24.20% | 29,510 0.08% of shares | low |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| Vanguard Group Inc | Passive13G/A | — |
| Jennison Associates LLC | Passive13G | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| AAMI | — | 10948W103 |