Latest Period
Q2 2026
Security Snapshot
Acadian Asset Management Inc. - Common (AAMI) Institutional Ownership
CUSIP: 10948W103
13F Institutional Holders and Ownership History from Q2 2019 to Q2 2026
Institutions Reporting
296
Shares (Excl. Options)
35,958,755
Price
$71.52
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- Security type / class
- Equity / Common
- Symbol
- AAMI on NYSE
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 35,958,755
- Total 13F value
- $2,570,945,694
- Portfolio coverage rank
- 0%
- Share change
- +216,568
- Value change
- +$23,464,589
- Number of holders
- 296
- Shares outstanding
- 35,530,844
- SEC-reported price per share
- $71.98
- Insider filing price
- $71.98
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- AAMI - Acadian Asset Management Inc. - Common is tracked under CUSIP 10948W103.
- 296 institutions reported positions in Q2 2026.
- 6 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 254 to 296 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $1,956,674,743 to $2,570,945,694.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 296 institutions filings for Q2 2026.
Security key
10948W103
Latest holder period
Q2 2026
13F holders
296
13D/G owners
6
CIK / CUSIP context first
Open Q2 2026 holders
AAMI full holder history
Acadian Asset Management Inc. SEC filings
Acadian Asset Management Inc. company facts
Acadian Asset Management Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 10948W103:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
6
Security
AAMI
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| PAULSON & CO. INC. | 16% | -24% | $361,465,425 | -$117,534,000 | 5,843,282 | -25% | Paulson & Co. Inc. | 17 Jun 2026 |
| BlackRock, Inc. | 11% | -23% | $113,935,282 | -$34,617,734 | 4,230,794 | -23% | BlackRock, Inc. | 31 Mar 2025 |
| PRUDENTIAL FINANCIAL INC | 4.5% | -23% | $115,087,958 | -$38,084,690 | 1,598,888 | -25% | PRUDENTIAL FINANCIAL INC | 30 Jun 2026 |
| Azora Capital LP | 4.2% | -24% | $42,168,771 | -$12,454,910 | 1,565,866 | -23% | Azora Capital LP | 31 Dec 2024 |
| Empyrean Capital Partners, LP | 4.3% | $74,219,761 | 1,541,108 | Empyrean Capital Partners, LP | 30 Sep 2025 | |||
| JENNISON ASSOCIATES LLC | 4.3% | -22% | $109,882,509 | -$27,543,291 | 1,526,570 | -20% | Jennison Associates LLC | 30 Jun 2026 |
As of 30 Jun 2026, 296 institutional investors reported holding 35,958,755 shares of Acadian Asset Management Inc. - Common (AAMI). This represents 101% of the company’s total 35,530,844 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
78%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| PAULSON & CO. INC. | 16% | 5,843,282 | -25% | 16% | $417,911,529 |
| BlackRock, Inc. | 13% | 4,486,535 | -1.9% | 0% | $320,877,006 |
| JENNISON ASSOCIATES LLC | 4.3% | 1,526,570 | -25% | 0.07% | $109,180,286 |
| Invesco Ltd. | 3.9% | 1,376,531 | +234% | 0.01% | $98,449,498 |
| Empyrean Capital Partners, LP | 3.7% | 1,308,000 | -0.01% | 3.3% | $93,548,160 |
| STATE STREET CORP | 3.4% | 1,224,388 | +1.2% | 0% | $87,568,230 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.3% | 1,176,511 | +1.5% | 0% | $84,144,067 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.7% | 969,724 | +30% | 0% | $69,362,852 |
| DIMENSIONAL FUND ADVISORS LP | 2.6% | 911,667 | +0.79% | 0.01% | $65,202,070 |
| Woodline Partners LP | 2.5% | 883,540 | +26% | 0.2% | $63,190,781 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.3% | 813,352 | -8% | 0% | $58,170,935 |
| Driehaus Capital Management LLC | 2.2% | 788,901 | 0.33% | $56,422,200 | |
| Avantyr Capital Partners, LP | 2.2% | 767,793 | 2% | $54,912,555 | |
| MORGAN STANLEY | 1.8% | 623,422 | +16% | 0% | $44,587,212 |
| SOROS FUND MANAGEMENT LLC | 1.7% | 610,248 | -5.9% | 0.57% | $43,644,937 |
| Nuveen, LLC | 1.7% | 602,378 | +2.4% | 0.01% | $43,082,074 |
| FEDERATED HERMES, INC. | 1.6% | 574,597 | +1.1% | 0.06% | $41,095,177 |
| Allspring Global Investments Holdings, LLC | 1.6% | 553,623 | +32% | 0.06% | $39,849,784 |
| TWO SIGMA INVESTMENTS, LP | 1.5% | 523,939 | +9.4% | 0.03% | $37,472,117 |
| Azora Capital LP | 1.4% | 496,005 | +51% | 1.5% | $35,474,278 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.1% | 403,342 | -11% | 0% | $28,847,020 |
| Systematic Alpha Investments, LLC | 1% | 370,108 | 0% | 0.71% | $26,470,120 |
| GW&K Investment Management, LLC | 1% | 368,935 | -1.9% | 0.21% | $26,386,000 |
| Impax Asset Management Group plc | 0.99% | 350,000 | -57% | 0.16% | $25,032,000 |
| Amundi | 0.89% | 317,315 | 0.01% | $22,694,369 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
29
Latest
Q2 2026
Rows shown
1-25 of 29
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 35,958,755 | $2,570,945,694 | +$23,464,589 | $71.52 | 296 |
| 2026 Q1 | 35,950,924 | $1,956,674,743 | +$39,448,957 | $54.42 | 254 |
| 2025 Q4 | 35,446,399 | $1,666,254,479 | +$22,805,652 | $47.00 | 255 |
| 2025 Q3 | 35,013,780 | $1,684,848,667 | -$35,902,068 | $48.16 | 247 |
| 2025 Q2 | 35,778,019 | $1,261,010,713 | +$1,582,222 | $35.24 | 213 |
| 2025 Q1 | 35,912,108 | $928,709,663 | -$47,957,442 | $25.86 | 190 |
| 2024 Q4 | 37,752,569 | $994,151,709 | +$13,331,289 | $26.34 | 177 |
| 2024 Q3 | 37,169,720 | $943,763,728 | -$18,137,073 | $25.40 | 171 |
| 2024 Q2 | 38,054,356 | $843,690,912 | -$24,328,051 | $22.17 | 164 |
| 2024 Q1 | 39,168,433 | $894,553,117 | -$39,556,496 | $22.84 | 168 |
| 2023 Q4 | 41,054,968 | $786,553,389 | -$2,826,463 | $19.16 | 169 |
| 2023 Q3 | 41,152,021 | $797,584,945 | -$2,468,747 | $19.39 | 161 |
| 2023 Q2 | 41,244,983 | $864,213,285 | -$10,762,873 | $20.95 | 155 |
| 2023 Q1 | 41,626,716 | $981,253,379 | -$13,037,587 | $23.58 | 163 |
| 2022 Q4 | 42,392,867 | $872,573,361 | +$4,358,738 | $20.58 | 142 |
| 2022 Q3 | 42,568,813 | $635,085,728 | -$9,035,943 | $14.91 | 147 |
| 2022 Q2 | 42,621,167 | $767,406,688 | -$54,429,253 | $18.01 | 148 |
| 2022 Q1 | 44,183,535 | $1,071,418,175 | -$68,689,496 | $24.25 | 155 |
| 2021 Q4 | 46,943,314 | $1,202,472,473 | -$832,842,752 | $25.60 | 177 |
| 2021 Q3 | 79,061,517 | $2,067,730,261 | +$6,713,987 | $26.13 | 175 |
| 2021 Q2 | 78,940,057 | $1,850,838,067 | -$15,155,001 | $23.43 | 163 |
| 2021 Q1 | 78,922,644 | $1,607,966,780 | -$11,281,488 | $20.38 | 167 |
| 2020 Q4 | 79,614,213 | $1,534,316,832 | -$27,079,923 | $19.28 | 164 |
| 2020 Q3 | 80,774,043 | $1,041,521,316 | -$14,529,395 | $12.90 | 150 |
| 2020 Q2 | 81,818,677 | $1,019,438,778 | +$21,132,761 | $12.46 | 138 |