Acadian Asset Management
AAMI · NYSE
$94.36+$1.16 (+1.24%)TodayMarket closed ·
Prev close $93.20
Who owns AAMI
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 54.3% of AAMI’s shares.
- Paulson & Co. Inc.16.4%
- BlackRock Institutional Trust Company, N.A.10.9%
- E.Sun Asset Management Co., Ltd.4.5%
- Jennison Associates LLC4.3%
- Next 6 largest institutions18.2%
- All other shareholders45.7%
| Holder | Shares | % of shares |
|---|---|---|
| Paulson & Co. Inc. | 5.84M | 16.40% |
| BlackRock Institutional Trust Company, N.A. | 3.90M | 10.94% |
| E.Sun Asset Management Co., Ltd. | 1.60M | 4.49% |
| Jennison Associates LLC | 1.53M | 4.28% |
| Empyrean Capital Partners, LP | 1.31M | 3.67% |
| State Street Investment Management (US) | 1.22M | 3.44% |
| Vanguard Capital Management, LLC | 1.18M | 3.30% |
| Geode Capital Management, L.L.C. | 969.72K | 2.72% |
| Dimensional Fund Advisors, L.P. | 911.67K | 2.56% |
| Woodline Partners LP | 883.54K | 2.48% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| iShares Core S&P Small-Cap ETF | 1.61M | 4.51% |
| Vanguard Total Stock Market Index Fund | 851.21K | 2.39% |
| Invesco Discovery Fund | 745.19K | 2.09% |
| iShares Russell 2000 ETF | 732.41K | 2.06% |
| PGIM Jennison Small Company Fund | 573.25K | 1.61% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $155.71M (7 trades) of AAMI on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Wiater Christina | Sale | 244 | $22.53K |
| Wiater Christina | Sale | 3 | $264 |
| Wiater Christina | Sale | 17.39K | $1.52M |
| Wiater Christina | Sale | 7.98K | $690.96K |
| PAULSON & CO. INC. | Sale | 1.90M | $146.78M |
| Trebbi Barbara | Gift | 10.26K | — |
| Trebbi Barbara | Gift | 10.26K | — |
| Trebbi Barbara | Award | 1.29K | — |
| Chersi Robert J | Award | 1.29K | — |
| Paulson John | Award | 2.25K | — |
Short interest
Settled Sep 30, 2026
- Shares short
- 1.69M
- Days to cover
- 3.79
- % of shares outstanding
- 4.75%
- Average daily volume
- 447.44K
- Change since last report
- +58.0%
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