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AMG in the 13F filings

Affiliated Managers Group · CUSIP 008252108

Sector · Other financial servicesTheme · Financial services· L3VLUP-defined
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023
Quarter end
31 Dec 2025
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 5 Feb 2026
Managers listing it
32
at least, of 95 tracked, among listed positions
Comparable managers
92
filed both Q3 2025 and Q4 2025; 5 listed it in both
Shares listed
2,771,574
combined, among listed positions
Reported value
$799m
combined, at the quarter end

Among the 92 comparable managers: 11 buyers (opened or added shares) and 22 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -532,618.

Managers listing AMG in Q4 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

32 of 32 holders

ActionFiling
Millennium Management LLC796,010$229m0.10%Trimmed-221,10317 Feb 2026 (the filing on sec.gov)
Citadel Advisors LLC319,437$92munder 0.1%Trimmed-325,70417 Feb 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc242,292$70munder 0.1%Trimmed-1,96117 Feb 2026 (the filing on sec.gov)
Balyasny Asset Management LLC231,675$67m0.08%Trimmed-104,38817 Feb 2026 (the filing on sec.gov)
Holocene Advisors LP184,010$53m0.11%Trimmed-69,92517 Feb 2026 (the filing on sec.gov)
Fidelity (FMR LLC)181,842$52munder 0.1%Trimmed-1,86317 Feb 2026 (the filing on sec.gov)
Artisan Partners LP130,112$38m0.06%Newnew17 Feb 2026 (the filing on sec.gov)
Invesco Ltd96,721$28munder 0.1%Held019 Feb 2026 (the filing on sec.gov)
AllianceBernstein LP86,642$25munder 0.1%Trimmed-28,33717 Feb 2026 (the filing on sec.gov)
Man Group PLC84,334$24munder 0.1%Added+5,35017 Feb 2026 (the filing on sec.gov)
Freestone Grove Partners LP73,413$21m0.15%Newnew17 Feb 2026 (the filing on sec.gov)
Voloridge Investment Management LLC63,194$18m0.06%Added+48,45517 Feb 2026 (the filing on sec.gov)
Jane Street Group LLC40,079$12munder 0.1%Trimmed-29,38712 Feb 2026 (the filing on sec.gov)
D. E. Shaw & Co.39,261$11munder 0.1%Trimmed-5,34917 Feb 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP37,845$11m0.09%Added+18,62817 Feb 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC28,720$8.3munder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Arrowstreet Capital LP24,858$7.2munder 0.1%Held013 Feb 2026 (the filing on sec.gov)
Squarepoint Ops LLC23,519$6.8munder 0.1%Added+21,33413 Feb 2026 (the filing on sec.gov)
Renaissance Technologies LLC19,100$5.5munder 0.1%Trimmed-48,20012 Feb 2026 (the filing on sec.gov)
Bridgewater Associates LP13,159$3.8munder 0.1%Trimmed-1,17513 Feb 2026 (the filing on sec.gov)
Janus Henderson Group Ltd12,770$3.7munder 0.1%Added+82317 Feb 2026 (the filing on sec.gov)
Acadian Asset Management LLC11,903$3.4munder 0.1%Trimmed-17110 Feb 2026 (the filing on sec.gov)
Neuberger Berman Group LLC9,165$2.6munder 0.1%Added+3,63427 Oct 2026 (the filing on sec.gov)
Southeastern Asset Management Inc5,562$1.6m0.07%Trimmed-1,27613 Feb 2026 (the filing on sec.gov)
Two Sigma Advisers LP4,700$1.4munder 0.1%Trimmed-30017 Feb 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q3 2025 to Q4 2025, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (4)

Exited (3)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
4 in Q3 2024 to 6 in Q2 2026

Tracked managers listing it, at least.

051015202014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
AMG by quarter
QuarterHoldersReported valueBuyersSellers
Q2 201310$1.1bnn.a.n.a.
Q3 201310$1.1bnn.a.n.a.
Q4 20139$1.5bnn.a.n.a.
Q1 201417$1.4bnn.a.n.a.
Q2 201417$1.3bnn.a.n.a.
Q3 201413$905mn.a.n.a.
Q4 20147$868mn.a.n.a.
Q1 201512$962mn.a.n.a.
Q2 20157$926mn.a.n.a.
Q3 201516$1.0bnn.a.n.a.
Q4 201512$903mn.a.n.a.
Q1 201613$1.1bnn.a.n.a.
Q2 201617$1.0bnn.a.n.a.
Q3 201614$806mn.a.n.a.
Q4 201611$463mn.a.n.a.
Q1 20178$412mn.a.n.a.
Q2 20178$508mn.a.n.a.
Q3 20177$559mn.a.n.a.
Q4 201710$538mn.a.n.a.
Q1 201810$510mn.a.n.a.
Q2 201818$661mn.a.n.a.
Q3 201814$712mn.a.n.a.
Q4 201813$600mn.a.n.a.
Q1 20197$531mn.a.n.a.
Q2 20196$265mn.a.n.a.
Q3 20193$215mn.a.n.a.
Q4 20199$245mn.a.n.a.
Q1 20204$88mn.a.n.a.
Q2 20205$143mn.a.n.a.
Q3 20202$97mn.a.n.a.
Q4 20205$174mn.a.n.a.
Q1 20215$251mn.a.n.a.
Q2 20215$315mn.a.n.a.
Q3 20218$340mn.a.n.a.
Q4 20214$315mn.a.n.a.
Q1 20222$262mn.a.n.a.
Q2 20222$226mn.a.n.a.
Q3 20223$210mn.a.n.a.
Q4 202211$296mn.a.n.a.
Q1 20239$202mn.a.n.a.
Q2 20237$185mn.a.n.a.
Q3 20233$141mn.a.n.a.
Q4 20238$219m62
Q1 20246$216m33
Q2 20247$209m44
Q3 20244$168m22
Q4 20243$144m12
Q1 20255$310m32
Q2 20257$417m51
Q3 20256$390m32
Q4 202510$471m1122
Q1 20269$219m1814
Q2 20266$365m1020

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

AMG and V →AMG and AXP →AMG and BAC →Choose a stock to compare with AMG →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own AMG, latest filings →Back to the 13F Explorer →