CenterBook Partners LP

Position in ATEX — Anterix Inc.

CIK 1872738 GREENWICH, CT

Position in ATEX

as of Jun 30, 2026 · filed Aug 11, 2026 Compact

Position Value

$707,918

-$4,167,952 QoQ

Shares Held

6,877

-94.6% QoQ

Ownership

0.035%

of shares outstanding

% of Portfolio

0.03%

of 13F equity value

Holder Rank

#79

of 171 holders

Holding Since

Dec 2021

12 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Communication Services · as of Jun 30, 2026

CenterBook Partners LP holds $24,164,187 across 9 Telecom Services names. ATEX ranks #4 (2.9% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ECHO	EchoStar CORP	135,076	$13,710,214
2	CCOI	Cogent Communications Holdings, Inc.	503,457	$6,987,983
3	TDS	Telephone & Data Systems Inc /De/	19,178	$709,777
4	ATEX	Anterix Inc. This page	6,877	$707,918
5	CMCSA	Comcast Corp	27,176	$667,170
6	TEO	Telecom Argentina SA	41,647	$541,411
7	VEON	VEON Ltd.	7,903	$412,615
8	RCI	Rogers Communications Inc	7,284	$236,730

12 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$707,918	6,877	-94.6%	Shares	Sole	2026-08-11
2026-03-31	$4,875,870	127,674	+409.5%	Shares	Sole	2026-05-05
2024-03-31	$842,199	25,058	+43.0%	Shares	Sole	2024-05-10
2023-12-31	$583,999	17,527	-52.5%	Shares	Sole	2024-02-13
2023-09-30	$1,156,949	36,869	+78.1%	Shares	Sole	2023-11-13
2023-06-30	$655,951	20,699	-6.3%	Shares	Sole	2023-08-14
2023-03-31	$729,985	22,094	+14.1%	Shares	Sole	2023-05-15
2022-12-31	$622,811	19,360	-19.4%	Shares	Sole	2023-02-13
2022-09-30	$858,137	24,024	+54.5%	Shares	Sole	2022-11-14
2022-06-30	$638,761	15,553	+132.1%	Shares	Sole	2022-08-15
2022-03-31	$387,987	6,701	+24.2%	Shares	Sole	2022-05-16
2021-12-31	$317,010	5,395	—	Shares	Sole	2022-02-11
No filing history on record for this holder in this stock.