MF
AAMI

Magnetar Financial’s Acadian Asset Management AAMI Stock Holding History

Magnetar Financial’s Portfolio AAMI Stock Details AAMI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-7,659
Closed -$369K – 1278
2025
Q3 		$369K Sell
7,659
-1,629
-18% -$72.6K ﹤0.01% 657
2025
Q2 		$327K Buy
+9,288
New +$270K ﹤0.01% 675
2025
Q1 		– Sell
-12,327
Closed -$325K – 990
2024
Q4 		$325K Buy
+12,327
New +$346K 0.01% 450
2018
Q1 		– Sell
-10,675
Closed -$179K – 817
2017
Q4 		$179K Buy
+10,675
New +$169K ﹤0.01% 644

Other funds holding AAMI

PC
Paulson & Co New York $3.11B AUM 94.93% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Jennison Associates
Jennison Associates New York $145B AUM 34.61% 1-Year Est. Return
ECP
Empyrean Capital Partners Los Angeles, California $3.07B AUM 34.24% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Impax Asset Management Group
Impax Asset Management Group London, United Kingdom $14.3B AUM 19.8% 1-Year Est. Return
SFM
Soros Fund Management New York $9.12B AUM 30.69% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Magnetar Financial's AAMI Position: Q4 2025 in Review

Magnetar Financial sold out of Acadian Asset Management (AAMI) in Q4 2025, closing a stake of 7,659 shares — an estimated $369K sold.

Magnetar Financial first reported a position in AAMI in Q4 2017 and held it in 4 quarters. The position peaked at $369K in Q3 2025. 257 funds tracked by Wall St. Rank hold AAMI as of Q4 2025.

  • Magnetar Financial reported no remaining Acadian Asset Management position as of Q4 2025 after selling out during the quarter.
  • Magnetar Financial sold 7,659 Acadian Asset Management shares in Q4 2025, an estimated $369K.
  • Magnetar Financial first reported a position in Acadian Asset Management in Q4 2017 and held it in 4 quarters.
  • Magnetar Financial's Acadian Asset Management position peaked at $369K in Q3 2025.
  • 257 funds tracked by Wall St. Rank held Acadian Asset Management as of Q4 2025.

Based on Magnetar Financial's 13F filing for Q4 2025, filed 17 Feb 2026.