AMG · Affiliated Managers Group, Inc. · Shareholders & Ownership
Every disclosed holder of AMG 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 AMG
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positionsNo chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.
| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 25,415,701 | 98.28% |
| Insiders (Forms 3, 4, 5) | 903,738 | 3.49% |
| 13D/G-only blocks | 1,017,113 | 3.93% |
| Remaining | 1,476,619 | -5.71% |
| Registered funds (N-PORT, not summed) | 11,214,738 | 43.37% |
Shares outstanding: 25,859,933, 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 AMG
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,772,736 | ||
| 1.1 |
iShares Core S&P Mid-Cap ETF
Fund
S000004307 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
903,925 | ||
| 1.2 |
iShares S&P Mid-Cap 400 Growth ETF
Fund
S000004308 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
158,039 | ||
| 1.3 |
iShares Russell Mid-Cap ETF
Fund
S000004338 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
104,792 | ||
| 1.4 |
iShares Russell 1000 Value ETF
Fund
S000004345 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
57,125 | ||
| 1.5 |
iShares U.S. Small-Cap Equity Factor ETF
Fund
S000048624 · Registered fund · Jul 31, 2026
iShares Trust, not summed
|
44,108 | ||
| 2 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,487,219 | ||
| 2.1 |
MORGAN STANLEY
13G
CIK 895421 · Holding company · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
1,458,379 | ||
| 2.2 |
E*TRADE No Fee Total Market Index Fund
Fund
S000090722 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
|
34 | ||
| 3 |
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,391,836 | ||
| 4 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,151,085 | ||
| 5 |
|
1,017,113 | ||
| 6 |
Boston Partners
13F
CIK 1386060 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,001,967 | ||
| 7 |
ARIEL INVESTMENTS, LLC
13F
CIK 936753 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
999,676 | ||
| 7.1 |
Ariel Fund
Fund
S000005024 · Registered fund · Jun 30, 2026
Ariel Investment Trust, not summed
|
280,984 | ||
| 7.2 |
Ariel Focus Fund
Fund
S000005026 · Registered fund · Jun 30, 2026
Ariel Investment Trust, not summed
|
14,306 | ||
| 8 |
|
883,323 | ||
| 8.1 |
State Street(R) SPDR(R) Portfolio S&P 400(TM) Mid Cap ETF
Fund
S000006986 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
133,710 | ||
| 8.2 |
State Street(R) SPDR(R) S & P 400(TM) Mid Cap Growth ETF
Fund
S000006987 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
40,945 | ||
| 8.3 |
State Street(R) SPDR(R) S&P(R) Capital Markets ETF
Fund
S000006978 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
19,942 | ||
| 8.4 |
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund
S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
9,039 | ||
| 8.5 |
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
|
4,200 | ||
| 9 |
MILLENNIUM MANAGEMENT LLC
13F
CIK 1273087 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
875,116 | ||
| 10 |
FULLER & THALER ASSET MANAGEMENT, INC.
13F
CIK 1082327 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
857,756 | ||
| 11 |
FULLERTHALER BEHAVIORAL SMALL CAP EQUITY
Fund
S000051163 · Registered fund · Jun 30, 2026
Capitol Series Trust, not summed
|
815,790 | ||
| 12 |
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund
S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
796,439 | ||
| 13 |
Eaton Vance Atlanta Capital SMID-Cap Fund
Fund
S000005198 · Registered fund · Jun 30, 2026
Eaton Vance Growth Trust, not summed
|
785,100 | ||
| 14 |
DIMENSIONAL FUND ADVISORS LP
13F
CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
670,195 | ||
| 14.1 |
U.S. SMALL CAP PORTFOLIO
Fund
S000000971 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
133,025 | ||
| 14.2 |
Dimensional U.S. Small Cap ETF
Fund
S000070906 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
85,132 | ||
| 14.3 |
Dimensional U.S. Core Equity 2 ETF
Fund
S000070903 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
64,120 | ||
| 14.4 |
U.S. CORE EQUITY 2 PORTFOLIO
Fund
S000000980 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
48,512 | ||
| 14.5 |
U.S. CORE EQUITY 1 PORTFOLIO
Fund
S000000979 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
35,352 | ||
| 15 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
590,757 | ||
| 16 |
|
588,764 | ||
| 17 |
VANGUARD SMALL-CAP INDEX FUND
Fund
S000002845 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
575,609 | ||
| 18 |
LSV ASSET MANAGEMENT
13F
CIK 1050470 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
533,611 | ||
| 19 |
LYRICAL ASSET MANAGEMENT LP
13F
CIK 1542302 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
472,886 | ||
| 19.1 |
LYRICAL U.S. VALUE EQUITY FUND
Fund
S000039711 · Registered fund · May 31, 2026
Ultimus Managers Trust, not summed
|
81,534 | ||
| 20 |
Allianz Asset Management GmbH
13F
CIK 1535323 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
453,989 | ||
| 20.1 |
PIMCO RAE US Small Fund
Fund
S000048957 · Registered fund · Jun 30, 2026
PIMCO Equity Series, not summed
|
210,650 | ||
| 20.2 |
PIMCO RAFI Dynamic Multi-Factor U.S. Equity ETF
Fund
S000057225 · Registered fund · Jun 30, 2026
PIMCO Equity Series, not summed
|
997 | ||
| 21 |
BANK OF AMERICA CORP /DE/
13F
CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
432,420 | ||
| 22 |
Invesco Ltd.
13F
CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
380,623 | ||
| 22.1 |
Invesco S&P MidCap Momentum ETF
Fund
S000003056 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
262,389 | ||
| 22.2 |
Invesco BuyBack AchieversTM ETF
Fund
S000013111 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
25,112 | ||
| 22.3 |
Invesco Dorsey Wright Momentum ETF
Fund
S000013787 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
23,912 | ||
| 22.4 |
Invesco S&P MidCap Value with Momentum ETF
Fund
S000003057 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
11,708 | ||
| 22.5 |
Invesco RAFI US 1000 ETF
Fund
S000011995 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
9,018 | ||
| 23 |
VANGUARD SMALL-CAP VALUE INDEX FUND
Fund
S000002847 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
364,523 | ||
| 24 |
NORGES BANK
13F
CIK 1374170 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
361,473 | ||
| 25 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
322,670 | ||
| 25.1 |
Mid Cap Index Fund
Fund
S000001273 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
17,163 | ||
| 25.2 |
FlexShares Morningstar US Market Factor Tilt Index Fund
Fund
S000033312 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
|
5,688 | ||
| 25.3 |
Large Cap Core Fund
Fund
S000001243 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
3,917 | ||
| 25.4 |
U.S. Quality ESG Fund
Fund
S000055816 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
835 | ||
| 26 |
JANE STREET GROUP, LLC
13F
CIK 1595888 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
309,134 | ||
| 27 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
302,771 | ||
| 28 |
Channing Capital Management, LLC
13F
CIK 1302404 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
302,514 | ||
| 28.1 |
CHANNING INTRINSIC VALUE SMALL-CAP FUND
Fund
S000071821 · Registered fund · Jul 31, 2026
Valued Advisers Trust, not summed
|
797 | ||
| 29 |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
287,795 | ||
| 29.1 |
Schwab U.S. Small-Cap ETF
Fund
S000026636 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
135,022 | ||
| 29.2 |
Schwab U.S. Mid-Cap ETF
Fund
S000026635 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
76,005 | ||
| 29.3 |
Schwab Fundamental U.S. Large Company ETF
Fund
S000040877 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
25,372 | ||
| 29.4 |
Schwab U.S. Broad Market ETF
Fund
S000026631 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
16,447 | ||
| 29.5 |
Schwab Total Stock Market Index Fund
Fund
S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
16,055 | ||
| 30 |
Bank of New York Mellon Corp
13F
CIK 1390777 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
281,967 | ||
| 30.1 |
BNY Mellon US Mid Cap Core Equity ETF
Fund
S000067261 · Registered fund · Jul 31, 2026
BNY Mellon ETF Trust, not summed
|
4,038 | ||
| 31 |
Qube Research & Technologies Ltd
13F
CIK 1729829 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
268,737 | ||
| 32 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
258,331 | ||
| 32.1 |
Goldman Sachs Absolute Return Tracker Fund
Fund
S000020314 · Registered fund · Jun 30, 2026
GOLDMAN SACHS TRUST, not summed
|
1,834 | ||
| 32.2 |
Goldman Sachs MarketBeta U.S. 1000 Equity ETF
Fund
S000075322 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust II, not summed
|
877 | ||
| 32.3 |
Goldman Sachs MarketBeta(R) Russell 1000 Value Equity ETF
Fund
S000083006 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
|
341 | ||
| 33 |
Fisher Asset Management, LLC
13F
CIK 850529 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
246,463 | ||
| 34 |
RAYMOND JAMES FINANCIAL INC
13F
CIK 720005 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
239,235 | ||
| 34.1 |
Carillon ClariVest Capital Appreciation Fund
Fund
S000058957 · Registered fund · Jun 30, 2026
Carillon Series Trust, not summed
|
12,290 | ||
| 35 |
Clarkston Capital Partners, LLC
13F
CIK 1562855 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
228,683 | ||
| 35.1 |
Clarkston Partners Fund
Fund
S000050589 · Registered fund · Jun 30, 2026
ALPS SERIES TRUST, not summed
|
70,000 | ||
| 35.2 |
Clarkston Founders Fund
Fund
S000053615 · Registered fund · Jun 30, 2026
ALPS SERIES TRUST, not summed
|
12,500 | ||
| 35.3 |
Clarkston Fund
Fund
S000050590 · Registered fund · Jun 30, 2026
ALPS SERIES TRUST, not summed
|
3,800 | ||
| 36 |
VANGUARD STRATEGIC EQUITY FUND
Fund
S000002593 · Registered fund · Jun 30, 2026
VANGUARD HORIZON FUNDS, not summed
|
216,446 | ||
| 37 |
BRUNI J V & CO /CO
13F
CIK 1078841 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
210,094 | ||
| 38 |
CITADEL ADVISORS LLC
13F
CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
198,492 | ||
| 39 |
ALLIANCEBERNSTEIN L.P.
13F
CIK 1109448 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
189,739 | ||
| 39.1 |
AB DISCOVERY GROWTH FUND, INC.
Fund
S000010117 · Registered fund · Jun 30, 2026
AB DISCOVERY GROWTH FUND, INC., not summed
|
84,987 | ||
| 39.2 |
Tax-Aware Overlay A Portfolio
Fund
S000027648 · Registered fund · Jun 30, 2026
BERNSTEIN SANFORD C FUND INC, not summed
|
596 | ||
| 39.3 |
Overlay A Portfolio
Fund
S000027647 · Registered fund · Jun 30, 2026
BERNSTEIN SANFORD C FUND INC, not summed
|
241 | ||
| 40 |
Kiltearn Partners LLP
13F
CIK 1582633 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
184,586 | ||
| 41 |
Caisse de depot et placement du Quebec
13F
CIK 898286 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
182,041 | ||
| 42 |
FMR LLC
13F
CIK 315066 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
177,576 | ||
| 42.1 |
Fidelity Extended Market Index Fund
Fund
S000006021 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
144,917 | ||
| 42.2 |
Fidelity Mid Cap Index Fund
Fund
S000033637 · Registered fund · Jul 31, 2026
Fidelity Salem Street Trust, not summed
|
96,689 | ||
| 42.3 |
Fidelity SAI Small-Mid Cap Momentum Index Fund
Fund
S000050321 · Registered fund · Jul 31, 2026
Fidelity Salem Street Trust, not summed
|
79,033 | ||
| 42.4 |
Fidelity Total Market Index Fund
Fund
S000006026 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
53,025 | ||
| 42.5 |
Strategic Advisers U.S. Total Stock Fund
Fund
S000084926 · Registered fund · May 31, 2026
Fidelity Rutland Square Trust II, not summed
|
51,000 | ||
| 43 |
|
175,776 | ||
| 44 |
PRICE T ROWE ASSOCIATES INC /MD/
13F
CIK 80255 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
166,559 | ||
| 44.1 |
T. Rowe Price Integrated U.S. Small-Cap Growth Equity Fund
Fund
S000002074 · Registered fund · Jun 30, 2026
T. ROWE PRICE INTEGRATED EQUITY FUNDS, INC., not summed
|
67,614 | ||
| 44.2 |
T. Rowe Price Integrated U.S. Small-Mid Cap Core Equity Fund
Fund
S000052904 · Registered fund · Jun 30, 2026
T. ROWE PRICE INTEGRATED EQUITY FUNDS, INC., not summed
|
15,715 | ||
| 44.3 |
T. Rowe Price Extended Equity Market Index Fund
Fund
S000002090 · Registered fund · Jun 30, 2026
T. ROWE PRICE INDEX TRUST, INC., not summed
|
3,688 | ||
| 44.4 |
T. Rowe Price Mid-Cap Index Fund
Fund
S000051326 · Registered fund · Jun 30, 2026
T. ROWE PRICE INDEX TRUST, INC., not summed
|
2,263 | ||
| 44.5 |
T. Rowe Price Total Equity Market Index Fund
Fund
S000002091 · Registered fund · Jun 30, 2026
T. ROWE PRICE INDEX TRUST, INC., not summed
|
1,279 | ||
| 45 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
165,842 | ||
| 46 |
LORD, ABBETT & CO. LLC
13F
CIK 728100 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
164,477 | ||
| 46.1 |
LORD ABBETT MID CAP STOCK FUND INC
Fund
S000001450 · Registered fund · Jun 30, 2026
LORD ABBETT MID CAP STOCK FUND INC, not summed
|
60,820 | ||
| 46.2 |
Lord Abbett Value Opportunities Fund
Fund
S000007144 · Registered fund · Jul 31, 2026
LORD ABBETT SECURITIES TRUST, not summed
|
55,323 | ||
| 46.3 |
Small-Cap Value Series
Fund
S000007001 · Registered fund · May 31, 2026
LORD ABBETT RESEARCH FUND INC, not summed
|
22,265 | ||
| 46.4 |
Mid Cap Stock Portfolio
Fund
S000007304 · Registered fund · Jun 30, 2026
LORD ABBETT SERIES FUND INC, not summed
|
13,060 | ||
| 46.5 |
Lord Abbett Focused Small Cap Value Fund
Fund
S000007143 · Registered fund · Jul 31, 2026
LORD ABBETT SECURITIES TRUST, not summed
|
7,702 | ||
| 47 |
|
159,465 | ||
| 48 |
JPMORGAN CHASE & CO
13F
CIK 19617 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
129,402 | ||
| 49 |
RENAISSANCE TECHNOLOGIES LLC
13F
CIK 1037389 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
117,440 | ||
| 50 |
SEI INVESTMENTS CO
13F
CIK 350894 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
117,142 |
68 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.
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