AFFILIATED MANAGERS GROUP, INC.

AMG
Exchange
NYSE
Industry
Investment Advice
SEC CIK
0001004434

Other share classesMGRMGRBMGRDMGRE

Price chart

Open-market purchases and sales by AMG insiders, newest first.

Insider trades
Filed (ET)Trade dateInsiderTransactionSharesAvg priceValueShares afterHolding changeFiling
Jun 8, 2026Jun 8, 2026Horgen Jay C.President and CEOSSaleCommon Stock−17.5K$338.27−$5.92M204.71K−7.9%SEC
Jun 3, 2026Jun 1, 2026Franqui AnnetteDirectorPPurchaseCommon Stock+750$304.88+$228.66K1.96K+61.9%SEC
May 8, 2026May 8, 2026Matos Rodriguez Felix V.DirectorSSaleCommon Stock−1K$300.18−$300.18K4.37K−18.6%SEC
May 8, 2026May 6, 2026Ryan David ChristopherDirectorSSaleCommon Stock−3.4K$305.06−$1.04M1.09K−75.7%SEC
May 6, 2026May 6, 2026Cates G. StaleyDirectorPPurchaseCommon Stock+1.5K$305.83+$458.75K6.41K+30.6%SEC

The largest institutional positions in AMG at the end of Q2 2026.

Institutions holding AMG in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock, Inc.2,772,736$938.29M0.01%−94,929−3.3%Reduced
MORGAN STANLEY1,487,219$503.28M0.03%−245,293−14.2%Reduced
VANGUARD PORTFOLIO MANAGEMENT LLC1,391,836$471M0.02%+32,043+2.4%Added
VANGUARD CAPITAL MANAGEMENT LLC1,151,085$389.53M0.01%−23,661−2.0%Reduced
Boston Partners1,001,967$339.15M0.30%+30,720+3.2%Added