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 Q2	$7.17M	Buy	69,700 +49,200	+240%	+$2.89M	﹤0.01%	3231
2026 Q1	$783K	Buy	+20,500	New	+$649K	﹤0.01%	7032
2025 Q4	–	Sell	-13,500	Closed	-$290K	–	11075
2025 Q3	$290K	Sell	13,500 -33,600	-71%	-$753K	﹤0.01%	8970
2025 Q2	$1.21M	Buy	47,100 +40,500	+614%	+$1.19M	﹤0.01%	5264
2025 Q1	$242K	Buy	+6,600	New	+$227K	﹤0.01%	8168
2024 Q3	–	Sell	-14,500	Closed	-$574K	–	9544
2024 Q2	$574K	Buy	14,500 +4,300	+42%	+$139K	﹤0.01%	6791
2024 Q1	$343K	Buy	+10,200	New	+$343K	﹤0.01%	7339
2023 Q1	–	Sell	-87,900	Closed	-$2.83M	–	8982
2022 Q4	$2.83M	Buy	+87,900	New	+$2.99M	﹤0.01%	3315
2021 Q3	–	Sell	-26,200	Closed	-$1.57M	–	9885
2021 Q2	$1.57M	Buy	26,200 +11,100	+74%	+$556K	﹤0.01%	4827
2021 Q1	$712K	Buy	+15,100	New	+$621K	﹤0.01%	6140
2020 Q4	–	Sell	-110,700	Closed	-$3.62M	–	7442
2020 Q3	$3.62M	Buy	110,700 +21,600	+24%	+$914K	﹤0.01%	2217
2020 Q2	$4.04M	Buy	+89,100	New	+$4.55M	﹤0.01%	2113

Other funds holding ATEX

OCAM

Owl Creek Asset Management New York $1.21B AUM 169.99% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

HCL

Heard Capital LLC Chicago, Illinois $2.34B AUM 46.76% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Jupiter Topco New York $245B AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Plustick Management Charlottesville, Virginia $269M AUM 340.55% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

GAMCO Investors Greenwich, Connecticut $11.1B AUM 41.79% 1-Year Est. Return

Jane Street's ATEX Position: Q2 2026 in Review

Jane Street reduced its Anterix (ATEX) stake by 96% in Q2 2026, selling an estimated $23.7M and leaving 17,506 shares worth $1.8M. The position accounts for ﹤0.01% of the portfolio, ranked #5372.

Jane Street first reported a position in ATEX in Q2 2020 and has held it in 20 quarters since. The position peaked at $16.1M in Q1 2026. 172 funds tracked by Wall St. Rank hold ATEX as of Q2 2026.

Jane Street held 17,506 shares of Anterix worth $1.8M as of Q2 2026.
Jane Street sold 403,351 Anterix shares in Q2 2026, an estimated $23.7M.
Anterix made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #5372 holding.
Jane Street first reported a position in Anterix in Q2 2020 and has held it in 20 quarters since.
Jane Street's Anterix position peaked at $16.1M in Q1 2026.
172 funds tracked by Wall St. Rank held Anterix as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.