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AAMI · Acadian Asset Management Inc. · Shareholders & Ownership

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$93.44 +2.48 (+2.72%) Play latest call Q3 2026 earnings call transcript
Market Cap
$3.21B
Shares
35.30M
Volume · Nov 9 49.4K Avg daily vol (3M) 430.43K

Every disclosed holder of AAMI in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

Who Owns AAMI

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

No chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.

Holder group Shares % Out
Institutional (13F) 36,023,984 102.04%
Insiders (Forms 3, 4, 5) 183,100 0.52%
13D/G-only blocks 0 0.00%
Remaining 904,304 -2.56%
Registered funds (N-PORT, not summed) 14,165,680 40.13%

Shares outstanding: 35,302,780, the issuer's latest cover-page count restated onto today's split basis.

Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of AAMI

# Holder Shares
1
PAULSON & CO. INC.
13F CIK 1035674 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
5,843,282
1.1
PAULSON & CO. INC.
Insider CIK 1035674 · Jun 17, 2026
10% Owner, issuer-wide, not summed
5,843,282
2
BlackRock, Inc.
13F CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
4,486,535
2.1
iShares Core S&P Small-Cap ETF
Fund S000004313 · Registered fund · Jun 30, 2026
iShares Trust, not summed
1,588,786
2.2
iShares Russell 2000 ETF
Fund S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
727,052
2.3
iShares Russell 2000 Growth ETF
Fund S000004343 · Registered fund · Jun 30, 2026
iShares Trust, not summed
261,448
2.4
iShares S&P Small-Cap 600 Growth ETF
Fund S000004314 · Registered fund · Jun 30, 2026
iShares Trust, not summed
236,820
2.5
BlackRock Advantage Small Cap Core Fund
Fund S000039982 · Registered fund · Aug 31, 2026
BlackRock Funds, not summed
108,007
3
JENNISON ASSOCIATES LLC
13F CIK 53417 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,526,570
3.1
JENNISON ASSOCIATES LLC
13G CIK 53417 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
1,526,570
4
Invesco Ltd.
13F CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,376,531
4.1
Invesco Discovery Fund
Fund S000064618 · Registered fund · Aug 31, 2026
AIM Counselor Series Trust (Invesco Counselor Series Trust), not summed
812,247
4.2
Invesco S&P SmallCap Momentum ETF
Fund S000003024 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
352,439
4.3
Invesco Small Cap Growth Fund
Fund S000000476 · Registered fund · Jun 30, 2026
AIM Growth Series (Invesco Growth Series), not summed
95,628
4.4
Invesco Dorsey Wright SmallCap Momentum ETF
Fund S000037586 · Registered fund · Aug 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
53,088
4.5
Invesco RAFI US 1500 Small-Mid ETF
Fund S000013120 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
34,376
5
Empyrean Capital Partners, LP
13F CIK 1317195 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,308,000
6
STATE STREET CORP
13F CIK 93751 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
1,224,388
6.1
State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF
Fund S000041317 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
242,555
6.2
State Street(R) SPDR(R) S & P 600(TM) Small Cap Growth ETF
Fund S000006990 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
147,894
6.3
State Street(R) SPDR(R) S&P(R) Capital Markets ETF
Fund S000006978 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
88,217
6.4
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
9,473
6.5
State Street(R) SPDR(R) Portfolio S&P 1500(R) Composite Stock Market ETF
Fund S000006973 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
5,698
7
VANGUARD CAPITAL MANAGEMENT LLC
13F CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,176,511
8
GEODE CAPITAL MANAGEMENT, LLC
13F CIK 1214717 · Registered investment adviser · Sep 30, 2026
1,021,481
9
DIMENSIONAL FUND ADVISORS LP
13F CIK 354204 · Registered investment adviser · Sep 30, 2026
915,790
9.1
U.S. SMALL CAP PORTFOLIO
Fund S000000971 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
202,867
9.2
U.S. MICRO CAP PORTFOLIO
Fund S000000948 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
146,922
9.3
Dimensional U.S. Small Cap ETF
Fund S000070906 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
119,135
9.4
U.S. CORE EQUITY 2 PORTFOLIO
Fund S000000980 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
71,701
9.5
U.S. CORE EQUITY 1 PORTFOLIO
Fund S000000979 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
62,893
10
Woodline Partners LP
13F CIK 1784547 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
883,540
11
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
847,261
12
VANGUARD PORTFOLIO MANAGEMENT LLC
13F CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
813,352
13
Driehaus Capital Management LLC
13F CIK 938206 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
788,901
13.1
Driehaus Small Cap Growth Fund
Fund S000058261 · Registered fund · Jun 30, 2026
Driehaus Mutual Funds, not summed
166,707
14
Avantyr Capital Partners, LP
13F CIK 2087378 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
767,793
15
MORGAN STANLEY
13F CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
623,422
15.1
E*TRADE No Fee Total Market Index Fund
Fund S000090722 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
45
16
SOROS FUND MANAGEMENT LLC
13F CIK 1029160 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
610,248
17
Nuveen, LLC
13F CIK 1871926 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
602,378
17.1
College Retirement Equities Fund - Total Global Stock Account
Fund S000005080 · Registered fund · Jun 30, 2026
College Retirement Equities Fund, not summed
318,596
17.2
Nuveen Quant Small/Mid Cap Equity Fund
Fund S000054623 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
178,689
17.3
Nuveen Small Cap Blend Index Fund
Fund S000005367 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
37,418
17.4
Nuveen Equity Index Fund
Fund S000005360 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
33,822
17.5
TIAA Separate Account VA-1 - Stock Index Account
Fund S000005098 · Registered fund · Jun 30, 2026
TIAA Separate Account VA-1, not summed
540
18
FEDERATED HERMES, INC.
13F CIK 1056288 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
574,597
19
PGIM Jennison Small Company Fund
Fund S000004629 · Registered fund · Jun 30, 2026
Prudential Jennison Small Co Fund, Inc., not summed
573,245
20
TWO SIGMA INVESTMENTS, LP
13F CIK 1179392 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
523,939
21
Allspring Global Investments Holdings, LLC
13F CIK 1890906 · Holding company · Sep 30, 2026
511,775
21.1
Allspring SMID Core ETF
Fund S000093515 · Registered fund · Jun 30, 2026
ALLSPRING EXCHANGE-TRADED FUNDS TRUST, not summed
33,502
21.2
Allspring Disciplined Small Cap Fund
Fund S000007342 · Registered fund · Jun 30, 2026
ALLSPRING FUNDS TRUST, not summed
2,290
22
Azora Capital LP
13F CIK 1700272 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
496,005
23
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
403,342
23.1
Schwab U.S. Small-Cap ETF
Fund S000026636 · Registered fund · Aug 31, 2026
SCHWAB STRATEGIC TRUST, not summed
125,449
23.2
Schwab Fundamental U.S. Small Company ETF
Fund S000040878 · Registered fund · Aug 31, 2026
SCHWAB STRATEGIC TRUST, not summed
100,702
23.3
Schwab Small-Cap Index Fund
Fund S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
68,930
23.4
Schwab Fundamental U.S. Small Company Index Fund
Fund S000016767 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
26,282
23.5
Schwab Total Stock Market Index Fund
Fund S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
17,475
24
Systematic Alpha Investments, LLC
13F CIK 1806755 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
370,108
25
GW&K Investment Management, LLC
13F CIK 1082917 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
368,935
26
Impax Asset Management Group plc
13F CIK 1749768 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
350,000
27
Impax Small Cap Fund
Fund S000021459 · Registered fund · Jun 30, 2026
IMPAX FUNDS SERIES TRUST I, not summed
350,000
28
Amundi
13F CIK 1330387 · Holding company · Sep 30, 2026
339,923
29
NORTHERN TRUST CORP
13F CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
303,111
29.1
Small Cap Index Fund
Fund S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
14,320
29.2
Small Cap Core Fund
Fund S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
3,244
29.3
FlexShares Morningstar US Market Factor Tilt Index Fund
Fund S000033312 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
2,054
30
VANGUARD EXTENDED MARKET INDEX FUND
Fund S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
302,016
31
AQR CAPITAL MANAGEMENT LLC
13F CIK 1167557 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
254,068
31.1
AQR Small Cap Multi-Style Fund
Fund S000040064 · Registered fund · Jun 30, 2026
AQR Funds, not summed
12,916
31.2
AQR Small Cap Momentum Style Fund
Fund S000025644 · Registered fund · Mar 31, 2026
AQR Funds, not summed
8,654
32
Boston Trust Walden Corp
13F CIK 1534866 · Unknown · Sep 30, 2026
252,382
33
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND
13F CIK 1535845 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
249,082
34
GOLDMAN SACHS GROUP INC
13F CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
244,568
34.1
Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF
Fund S000048296 · Registered fund · Aug 31, 2026
Goldman Sachs ETF Trust, not summed
39,209
34.2
Goldman Sachs Absolute Return Tracker Fund
Fund S000020314 · Registered fund · Aug 31, 2026
GOLDMAN SACHS TRUST, not summed
7,684
35
FMR LLC
13F CIK 315066 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
231,204
35.1
Fidelity Small Cap Index Fund
Fund S000033638 · Registered fund · Jul 31, 2026
Fidelity Salem Street Trust, not summed
308,601
35.2
Fidelity Enhanced Small Cap Core ETF
Fund S000081807 · Registered fund · Jun 30, 2026
Fidelity Covington Trust, not summed
184,136
35.3
Fidelity Extended Market Index Fund
Fund S000006021 · Registered fund · Aug 31, 2026
Fidelity Concord Street Trust, not summed
127,495
35.4
Strategic Advisers Fidelity U.S. Total Stock Fund
Fund S000061481 · Registered fund · Aug 31, 2026
Fidelity Rutland Square Trust II, not summed
97,124
35.5
Strategic Advisers U.S. Total Stock Fund
Fund S000084926 · Registered fund · Aug 31, 2026
Fidelity Rutland Square Trust II, not summed
88,427
36
Bank of New York Mellon Corp
13F CIK 1390777 · Bank · Sep 30, 2026
213,977
37
Bridge Builder Small/Mid Cap Growth Fund
Fund S000048336 · Registered fund · Jun 30, 2026
Bridge Builder Trust, not summed
207,252
38
FIRST TRUST ADVISORS LP
13F CIK 1125816 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
194,899
38.1
First Trust Small Cap Growth AlphaDEX Fund
Fund S000031806 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
122,697
38.2
First Trust Small Cap Core AlphaDEX Fund
Fund S000017339 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
60,986
38.3
First Trust Multi Cap Growth AlphaDEX Fund
Fund S000017343 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
11,114
38.4
First Trust Active Factor Small Cap ETF
Fund S000066790 · Registered fund · Aug 31, 2026
First Trust Exchange-Traded Fund VIII, not summed
5,011
38.5
First Trust SMID Growth Strength ETF
Fund S000058148 · Registered fund · Jun 30, 2026
First Trust Exchange-Traded Fund VI, not summed
4,123
39
UBS Group AG
13F CIK 1610520 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
193,687
40
VANGUARD TAX-MANAGED SMALL-CAP FUND
Fund S000004387 · Registered fund · Jun 30, 2026
VANGUARD TAX-MANAGED FUNDS, not summed
192,766
41
VANGUARD FIDUCIARY TRUST CO
13F CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
190,801
42
Federated Hermes MDT Small Cap Core Fund
Fund S000012972 · Registered fund · Jul 31, 2026
Federated Hermes MDT Series, not summed
176,234
43
Allianz Asset Management GmbH
13F CIK 1535323 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
170,518
43.1
PIMCO RAE US Small Fund
Fund S000048957 · Registered fund · Jun 30, 2026
PIMCO Equity Series, not summed
94,084
43.2
PIMCO RAFI Dynamic Multi-Factor U.S. Equity ETF
Fund S000057225 · Registered fund · Jun 30, 2026
PIMCO Equity Series, not summed
578
44
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
13F CIK 1644956 · Registered investment adviser · Sep 30, 2026
169,521
44.1
William Blair Small Cap Value Fund
Fund S000008597 · Registered fund · Jun 30, 2026
WILLIAM BLAIR FUNDS, not summed
97,290
45
VANGUARD RUSSELL 2000 INDEX FUND
Fund S000030003 · Registered fund · Aug 31, 2026
VANGUARD SCOTTSDALE FUNDS, not summed
162,282
46
PRINCIPAL FINANCIAL GROUP INC
13F CIK 1126328 · Insurance company · Sep 30, 2026
152,301
46.1
Principal U.S. Small-Cap ETF
Fund S000055159 · Registered fund · Jun 30, 2026
Principal Exchange-Traded Funds, not summed
57,643
46.2
SmallCap S&P 600 Index Fund
Fund S000007203 · Registered fund · Jul 31, 2026
Principal Funds, Inc, not summed
19,425
46.3
SmallCap Growth Fund I
Fund S000007175 · Registered fund · Jul 31, 2026
Principal Funds, Inc, not summed
2,444
47
JACOBS LEVY EQUITY MANAGEMENT, INC
13F CIK 884414 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
151,793
48
Jupiter Topco LLC
13F CIK 2146052 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
151,546
48.1
Janus Henderson Small/Mid Cap Growth Alpha ETF
Fund S000052564 · Registered fund · Jul 31, 2026
Janus Detroit Street Trust, not summed
100,695
48.2
Janus Henderson Small Cap Growth Alpha ETF
Fund S000052563 · Registered fund · Jul 31, 2026
Janus Detroit Street Trust, not summed
38,785
49
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
13F CIK 1164508 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
149,259
50
Federated Hermes MDT Small Cap Growth Fund
Fund S000012973 · Registered fund · Jul 31, 2026
Federated Hermes MDT Series, not summed
133,887

54 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 455 holders

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Key facts CIK 1748824 CUSIP 10948W103 13F (30d) 144 filings 122 filers Visit website Investor relations