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Affiliated Managers Group, Inc. 13F holders

Of the 44 funds followed here, 10 reported a position in Affiliated Managers Group, Inc. in a 13F for the quarter ended 30 June 2026. The largest: Millennium Management, 875,116 shares worth $296.1 million, 0.1% of its reported book. New this quarter: Alyeska, Dodge & Cox. Sold out: Bridgewater Associates, Point72 Asset Management.

FundSharesValueOf its bookChange on the quarterStatusQuarter endedFiling
Millennium Management875,116$296.1 million0.1%+869,748added30 June 202613F
Geode Capital Management590,757$200.0 million0.0%-45,021trimmed30 June 202613F
Norges Bank361,473$122.3 million0.0%held30 June 202613F
Citadel Advisors212,592$71.9 million0.0%-49,628trimmed30 June 202613F
FMR LLC177,576$60.1 million0.0%-2,399trimmed30 June 202613F
Renaissance Technologies117,440$39.7 million0.1%+7,690added30 June 202613F
Two Sigma Investments5,575$1.9 million0.0%+475added30 June 202613F
Southeastern Asset Management5,562$1.9 million0.1%no changeheld30 June 202613F
Alyeska3,386$1.1 million0.0%+3,386new30 June 202613F
Dodge & Cox600$203,0400.0%+600new30 June 202613F
Bridgewater Associates0$00.0%-6,491exited30 June 202613F
Point72 Asset Management0$00.0%-44,273exited30 June 202613F
Value is what the fund reported.
Read moreChange is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.

Schedule 13D and 13G filed on the name, last twelve months

FiledScheduleWhoHoldingOf the classEvent dateRule or purposeFiling
12 August 202613G/AMorgan Stanley and 3 others1.5 million5.5%30 June 2026passive, institutional (13d-1(b))EDGAR
29 April 202613GVanguard Capital Management and 1 other1.4 million5.2%31 March 2026passive, institutional (13d-1(b))EDGAR
28 April 202613GVanguard Portfolio Management and 1 other1.4 million5.1%31 March 2026passive, institutional (13d-1(b))EDGAR
26 March 202613G/AThe Vanguard Group and 1 other00.0%13 March 2026passive, institutional (13d-1(b))EDGAR
5 March 202613G/AThe Vanguard Group and 1 other2.7 million10.2%27 February 2026passive, institutional (13d-1(b))EDGAR
13 February 202613G/AClarkston Capital Partners, LLC and 11 others904,1193.2%31 December 2025passive, institutional (13d-1(b))EDGAR
7 November 202513G/AMorgan Stanley and 5 others2.0 million7.0%30 September 2025passive, institutional (13d-1(b))EDGAR
30 October 202513G/AIntegrated Core Strategies (US) LLC and 7 others1.0 million3.6%30 September 2025passive, under 20% (13d-1(c))EDGAR
30 October 202513G/AThe Vanguard Group and 1 other2.8 million9.8%30 September 2025passive, institutional (13d-1(b))EDGAR
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
Read moreAmendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short.

Fails to deliver

Settlement dateShares failedPriceFile
14 September 202656$355.61SEC
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.
Read moreLargest in the window: 56 on 14 September 2026. A fail is an operational fact about settlement, not a position.

Source

Each fund's 13F-HR on EDGAR, linked per row; positions matched to AMG by CUSIP from the SEC's own fails-to-deliver files; Schedule 13D and 13G from the company's own filing index, each read to confirm the company is the issuer named.

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