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Horizon Investments’s Affiliated Managers Group AMG Stock Holding History

Horizon Investments’s Portfolio AMG Stock Details AMG Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$6.98M Buy
20,628
+1,440
+8% +$447K 0.08% 220
2026
Q1 		$5.31M Buy
19,188
+2,227
+13% +$671K 0.06% 279
2025
Q4 		$4.89M Buy
16,961
+2,946
+21% +$761K 0.06% 249
2025
Q3 		$3.34M Buy
14,015
+8,795
+168% +$1.94M 0.04% 323
2025
Q2 		$1.03M Buy
+5,220
New +$906K 0.02% 561
2024
Q4 		– Sell
-8
Closed -$1.42K – 869
2024
Q3 		$1.42K Buy
+8
New +$1.36K ﹤0.01% 745
2023
Q2 		– Sell
-2
Closed -$285 – 768
2023
Q1 		$285 Buy
+2
New +$316 ﹤0.01% 730
2019
Q3 		– Sell
-7,086
Closed -$653K – 407
2019
Q2 		$653K Buy
7,086
+3,661
+107% +$359K 0.02% 208
2019
Q1 		$367K Buy
+3,425
New +$364K 0.01% 232

Other funds holding AMG

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Boston Partners
Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return
AI
Ariel Investments Chicago, Illinois $10B AUM 42.59% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $36.7B AUM 74.15% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Horizon Investments's AMG Position: Q2 2026 in Review

Horizon Investments increased its Affiliated Managers Group (AMG) stake by 7.5% in Q2 2026, buying an estimated $447K and bringing the position to 20,628 shares worth $6.98M. The position accounts for 0.08% of the portfolio, ranked #220.

Horizon Investments first reported a position in AMG in Q1 2019 and has held it in 9 quarters since. 561 funds tracked by Wall St. Rank hold AMG as of Q2 2026.

  • Horizon Investments held 20,628 shares of Affiliated Managers Group worth $6.98M as of Q2 2026.
  • Horizon Investments bought 1,440 Affiliated Managers Group shares in Q2 2026, an estimated $447K.
  • Affiliated Managers Group made up 0.08% of Horizon Investments's portfolio in Q2 2026, its #220 holding.
  • Horizon Investments first reported a position in Affiliated Managers Group in Q1 2019 and has held it in 9 quarters since.
  • 561 funds tracked by Wall St. Rank held Affiliated Managers Group as of Q2 2026.

Based on Horizon Investments's 13F filing for Q2 2026, filed 13 Aug 2026.