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	$1.06M	Sell	10,300 -7,800	-43%	-$458K	﹤0.01%	6425
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 $1.21B 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.