Jane Street
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Jane Street’s Anterix ATEX Stock Holding History

Jane Street’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
2026
Q1 		$691K Buy
18,100
+8,000
+79% +$253K ﹤0.01% 7295
2025
Q4 		$220K Buy
+10,100
New +$210K ﹤0.01% 9520
2025
Q2 		– Sell
-14,800
Closed -$542K – 9580
2025
Q1 		$542K Buy
+14,800
New +$509K ﹤0.01% 6713
2023
Q1 		– Sell
-85,000
Closed -$2.73M – 8983
2022
Q4 		$2.73M Buy
+85,000
New +$2.89M ﹤0.01% 3367
2021
Q3 		– Sell
-7,400
Closed -$444K – 9886
2021
Q2 		$444K Sell
7,400
-41,000
-85% -$2.05M ﹤0.01% 7459
2021
Q1 		$2.28M Buy
+48,400
New +$1.99M ﹤0.01% 3756

Other funds holding ATEX

OCAM
Owl Creek Asset Management New York $1.38B AUM 59.67% 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
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
QF
QVT Financial New York $1.37B AUM 148.1% 1-Year Est. Return
PM
Plustick Management Charlottesville, Virginia $207M AUM 253.94% 1-Year Est. Return
GI
GAMCO Investors Greenwich, Connecticut $10.2B AUM 30.27% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Jane Street's ATEX Position: Q1 2026 in Review

Jane Street increased its Anterix (ATEX) stake by 165% in Q1 2026, buying an estimated $8.29M and bringing the position to 420,857 shares worth $16.1M. The position accounts for ﹤0.01% of the portfolio, ranked #1984.

Jane Street first reported a position in ATEX in Q2 2020 and has held it in 19 quarters since. 132 funds tracked by Wall St. Rank hold ATEX as of Q1 2026.

  • Jane Street held 420,857 shares of Anterix worth $16.1M as of Q1 2026.
  • Jane Street bought 261,843 Anterix shares in Q1 2026, an estimated $8.29M.
  • Anterix made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #1984 holding.
  • Jane Street first reported a position in Anterix in Q2 2020 and has held it in 19 quarters since.
  • 132 funds tracked by Wall St. Rank held Anterix as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.