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Mangrove Partners’s Affiliated Managers Group AMG Stock Holding History

Mangrove Partners’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
Q1 		– Sell
-775
Closed -$223K – 434
2025
Q4 		$223K Buy
+775
New +$200K 0.02% 279

Other funds holding AMG

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
AI
Ariel Investments Chicago, Illinois $8.93B AUM 29.58% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $29.7B AUM 43.33% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Mangrove Partners's AMG Position: Q1 2026 in Review

Mangrove Partners sold out of Affiliated Managers Group (AMG) in Q1 2026, closing a stake of 775 shares — an estimated $223K sold.

Mangrove Partners first reported a position in AMG in Q4 2025 and held it in 1 quarter. The position peaked at $223K in Q4 2025. 543 funds tracked by Wall St. Rank hold AMG as of Q1 2026.

  • Mangrove Partners reported no remaining Affiliated Managers Group position as of Q1 2026 after selling out during the quarter.
  • Mangrove Partners sold 775 Affiliated Managers Group shares in Q1 2026, an estimated $223K.
  • Mangrove Partners first reported a position in Affiliated Managers Group in Q4 2025 and held it in 1 quarter.
  • Mangrove Partners's Affiliated Managers Group position peaked at $223K in Q4 2025.
  • 543 funds tracked by Wall St. Rank held Affiliated Managers Group as of Q1 2026.

Based on Mangrove Partners's 13F filing for Q1 2026, filed 15 May 2026.