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.

Q3 2024 vs. Q2 2024

How the institutions holding Anterix Inc. changed between Q2 2024 and Q3 2024.

All holders in Q3 2024 All holders in Q2 2024

13F holders of ATEX: Q2 2024 compared with Q3 2024
Measure	Q2 2024	Of which not filed for Q3 2024	Q3 2024	Change
Holders	115	1	129	+15
Shares	15.0M	1.11M	15.8M	+1.89M (+13.6%)
Value	$593.3M	$44.0M	$593.7M	+$44.4M (+8.1%)

1 institution that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so the changes leave them out.

New holders (27)

Institutions that held Anterix Inc. at the end of Q3 2024 but not at the end of Q2 2024.

Institutions new to ATEX in Q3 2024
Institution	Shares	Value	% of portfolio
BlackRock, Inc.	995,627	$37.5M	0.00%
Jump Financial, LLC	38,850	$1.46M	0.03%
Paloma Partners Management Co	20,424	$769.2K	0.04%
Quest Partners LLC	20,166	$759.5K	0.07%
Winton Group Ltd	18,563	$699.1K	0.05%
PDT Partners, LLC	11,907	$448.4K	0.04%
Centiva Capital, LP	11,805	$444.6K	0.02%
CWM Advisors, LLC	10,903	$410.6K	0.04%
Man Group plc	8,571	$322.8K	0.00%
Two Sigma Securities, LLC	8,546	$321.8K	0.03%
Sherbrooke Park Advisers LLC	5,941	$223.7K	0.05%
Versor Investments LP	5,600	$210.9K	0.03%
Lazard Asset Management LLC	3,114	$117.0K	0.00%
Meeder Asset Management Inc	1,547	$58.3K	0.00%
Catalyst Funds Management Pty Ltd	1,500	$56.5K	0.01%
nVerses Capital, LLC	1,200	$45.2K	0.02%
Federated Hermes, Inc.	823	$31.0K	0.00%
Acadian Asset Management LLC	417	$15.0K	0.00%
Advisor Group Holdings, Inc.	157	$5.91K	0.00%
Simplex Trading, LLC	96	$3.00K	0.00%
US Bancorp	50	$1.88K	0.00%
Geneos Wealth Management Inc.	27	$1.02K	0.00%
Bessemer Group Inc	30	$1.00K	0.00%
Sterling Capital Management LLC	15	$565	0.00%
Capital Performance Advisors LLP	7	$264	0.00%
Trust Co of Vermont	5	$188	0.00%
GAMMA Investing LLC	4	$151	0.00%

Sold out (12)

Institutions that held Anterix Inc. at the end of Q2 2024 and filed for Q3 2024 without it.

Institutions that sold out of ATEX in Q3 2024
Institution	Shares, Q2 2024	Value, Q2 2024
ExodusPoint Capital Management, LP	56,325	$2.23M
B. Riley Asset Management, LLC	52,308	$2.07M
Renaissance Technologies LLC	33,700	$1.33M
Nebula Research & Development LLC	14,145	$560.0K
Jacobs Levy Equity Management, Inc	8,500	$336.5K
Corton Capital Inc.	5,871	$232.4K
Wealth Enhancement Advisory Services, LLC	5,239	$207.4K
Manufacturers Life Insurance Company, The	5,128	$203.0K
Jupiter Asset Management Ltd	5,057	$200.2K
Caption Management, LLC	4,500	$178.2K
Aquatic Capital Management LLC	1,100	$43.5K
Innealta Capital, LLC	11	$435

Not filed for Q3 2024 yet (1)

Institutions that held Anterix Inc. at the end of Q2 2024 and haven't filed a 13F for Q3 2024. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ATEX in Q2 2024 that haven't filed for Q3 2024
Institution	Shares, Q2 2024	Value, Q2 2024
BlackRock Inc.	1,110,273	$44.0M