MF
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Magnetar Financial’s Extra Space Storage EXR Stock Holding History

Magnetar Financial’s Portfolio EXR Stock Details EXR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-33,923
Closed -$5M – 990
2025
Q2 		$5M Buy
33,923
+30,439
+874% +$4.43M 0.02% 237
2025
Q1 		$517K Buy
+3,484
New +$528K 0.01% 455
2023
Q4 		– Sell
-12,619
Closed -$1.53M – 427
2023
Q3 		$1.53M Buy
12,619
+3,613
+40% +$485K 0.04% 203
2023
Q2 		$1.34M Buy
+9,006
New +$1.35M 0.03% 254
2023
Q1 		– Sell
-12,895
Closed -$1.9M – 641
2022
Q4 		$1.9M Buy
+12,895
New +$2.06M 0.03% 421
2021
Q2 		– Sell
-5,000
Closed -$663K – 1255
2021
Q1 		$663K Buy
+5,000
New +$605K 0.01% 769
2020
Q1 		– Sell
-14,265
Closed -$1.51M – 530
2019
Q4 		$1.51M Buy
14,265
+5,187
+57% +$566K 0.03% 182
2019
Q3 		$1.06M Buy
+9,078
New +$1.05M 0.03% 207
2018
Q2 		– Sell
-4,514
Closed -$394K – 563
2018
Q1 		$394K Buy
+4,514
New +$380K 0.01% 388
2017
Q4 		– Sell
-6,193
Closed -$495K – 762
2017
Q3 		$495K Sell
6,193
-6,294
-50% -$490K 0.01% 432
2017
Q2 		$974K Sell
12,487
-11,975
-49% -$918K 0.01% 369
2017
Q1 		$1.82M Buy
+24,462
New +$1.85M 0.03% 198
2016
Q4 		– Sell
-31,233
Closed -$2.48M – 145
2016
Q3 		$2.48M Buy
31,233
+9,968
+47% +$841K 0.04% 157
2016
Q2 		$1.97M Buy
+21,265
New +$1.92M 0.03% 132

Other funds holding EXR

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Cohen & Steers
Cohen & Steers New York $63.2B AUM 17.15% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $204B AUM 27.99% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Magnetar Financial's EXR Position: Q3 2025 in Review

Magnetar Financial sold out of Extra Space Storage (EXR) in Q3 2025, closing a stake of 33,923 shares — an estimated $5M sold.

Magnetar Financial first reported a position in EXR in Q2 2016 and held it in 14 quarters. The position peaked at $5M in Q2 2025. 793 funds tracked by Wall St. Rank hold EXR as of Q3 2025.

  • Magnetar Financial reported no remaining Extra Space Storage position as of Q3 2025 after selling out during the quarter.
  • Magnetar Financial sold 33,923 Extra Space Storage shares in Q3 2025, an estimated $5M.
  • Magnetar Financial first reported a position in Extra Space Storage in Q2 2016 and held it in 14 quarters.
  • Magnetar Financial's Extra Space Storage position peaked at $5M in Q2 2025.
  • 793 funds tracked by Wall St. Rank held Extra Space Storage as of Q3 2025.

Based on Magnetar Financial's 13F filing for Q3 2025, filed 13 Nov 2025.