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Magnetar Financial’s Anterix ATEX Stock Holding History

Magnetar Financial’s Portfolio ATEX Stock Details ATEX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-25,860
Closed -$663K – 893
2025
Q2 		$663K Buy
+25,860
New +$757K ﹤0.01% 499

Other funds holding ATEX

OCAM
Owl Creek Asset Management New York $1.38B AUM 59.67% 1-Year Est. Return
SS
SBI Securities Tokyo, Japan $4.4B AUM 74.25% 1-Year Est. Return
HCL
Heard Capital LLC Chicago, Illinois $1.93B AUM 21.66% 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
DCM
DG Capital Management New York $326M AUM 39.67% 1-Year Est. Return
QF
QVT Financial New York $1.37B AUM 148.1% 1-Year Est. Return
GECH
Garnet Equity Capital Holdings New York $642M AUM 58.94% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
GI
GAMCO Investors Greenwich, Connecticut $10.2B AUM 30.27% 1-Year Est. Return

Magnetar Financial's ATEX Position: Q3 2025 in Review

Magnetar Financial sold out of Anterix (ATEX) in Q3 2025, closing a stake of 25,860 shares — an estimated $663K sold.

Magnetar Financial first reported a position in ATEX in Q2 2025 and held it in 1 quarter. The position peaked at $663K in Q2 2025. 111 funds tracked by Wall St. Rank hold ATEX as of Q3 2025.

  • Magnetar Financial reported no remaining Anterix position as of Q3 2025 after selling out during the quarter.
  • Magnetar Financial sold 25,860 Anterix shares in Q3 2025, an estimated $663K.
  • Magnetar Financial first reported a position in Anterix in Q2 2025 and held it in 1 quarter.
  • Magnetar Financial's Anterix position peaked at $663K in Q2 2025.
  • 111 funds tracked by Wall St. Rank held Anterix as of Q3 2025.

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