Anterix Inc.

ATEX

Exchange: Nasdaq
Industry: Telephone Communications (No Radiotelephone)
SEC CIK: 0001304492

SEC filings (opens in a new tab)

In the last 90 days, Anterix Inc. insiders filed 0 open-market purchases and 10 sales; 171 institutions reported holding it in 13F filings for Q2 2026, worth $1.97B in total; no superinvestor holds it.

Q4 2023 vs. Q3 2023

How the institutions holding Anterix Inc. changed between Q3 2023 and Q4 2023.

All holders in Q4 2023 All holders in Q3 2023

13F holders of ATEX: Q3 2023 compared with Q4 2023
Measure	Q3 2023	Q4 2023	Change
Holders	98	93	−5
Shares	15.0M	14.8M	−224.5K (−1.5%)
Value	$472.2M	$492.4M	+$20.2M (+4.3%)

New holders (8)

Institutions that held Anterix Inc. at the end of Q4 2023 but not at the end of Q3 2023.

Institutions new to ATEX in Q4 2023
Institution	Shares	Value	% of portfolio
Cubist Systematic Strategies, LLC	13,598	$453.1K	0.01%
AQR Capital Management LLC	10,087	$336.1K	0.00%
Engineers Gate Manager LP	7,652	$255.0K	0.01%
Creative Planning	6,665	$222.1K	0.00%
Algert Global LLC	6,140	$204.6K	0.01%
Point72 Middle East FZE	3,917	$130.5K	0.01%
Point72 Asia (Singapore) Pte. Ltd.	598	$19.9K	0.00%
GAMMA Investing LLC	3	$89	0.00%

Sold out (13)

Institutions that held Anterix Inc. at the end of Q3 2023 and filed for Q4 2023 without it.

Institutions that sold out of ATEX in Q4 2023
Institution	Shares, Q3 2023	Value, Q3 2023
Jefferies Financial Group Inc.	164,265	$5.15M
Luminus Management LLC	115,000	$3.61M
HRT Financial LP	39,516	$1.24M
SG Americas Securities, LLC	26,984	$847.0K
Gsa Capital Partners LLP	21,884	$687.0K
Wolverine Trading, LLC	12,197	$382.7K
ExodusPoint Capital Management, LP	11,469	$360.0K
Caption Management, LLC	8,200	$257.3K
Nebula Research & Development LLC	7,942	$249.2K
Commonwealth Equity Services, LLC	7,908	$248.0K
Aquatic Capital Management LLC	3,700	$116.0K
Walleye Trading LLC	1,596	$50.1K
Advisor Group Holdings, Inc.	18	$564