How many institutional investors hold ATEX?

3 tracked institutional investors disclosed a position in ATEX (ANTERIX INC) in their most recent 13F filing.

Who is the largest institutional holder of ATEX?

Izzy Englander, Millennium Management, holds the largest disclosed position in ATEX, valued at $12M.

Where does this ATEX ownership data come from?

SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.

ATEX — ANTERIX INC

Name: ANTERIX INC (ATEX) — Institutional Ownership
Creator: InvestorLens
License: https://www.sec.gov/about/website-policies

Public company

For educational research only.InvestorLens analyzes public regulatory filings (SEC EDGAR, STOCK Act PTRs) that may be delayed by 45 days or more. Information shown is historical and is not financial, legal, or tax advice, nor a recommendation or solicitation to buy or sell any security. Always do your own research.

InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.

Sourced from SEC EDGAR public filings

About ANTERIX INC (ATEX)

ANTERIX INC (ATEX) appears in the most recent 13F filings of 3 tracked institutional investors. The largest disclosed position is held by Izzy Englander (Millennium Management), valued at $12M. Across recent filings, tracked investors recorded 5 new positions, 0 increased, 0 reduced, and 0 exited. All data sourced from SEC 13F filings.

Smart Money Consensus™

Based on recent institutional activity in ATEX

100

/100

Strong Institutional Accumulation

Added / Increased5

Reduced0

Exited0

BearishBullish

Crowded Trade Score™

How many top investors track ATEX

/100

Emerging Interest

3investors

A small number of top investors own this.

UndiscoveredCrowded

151015+

ATEX Ownership Composition

How ANTERIX INC is held across tracked investor types, based on reported 13F positions.

Dominant Type

Other

100% of tracked value

Institutions

tracked investors

Total Reported

$23.1M

combined 13F value

Other100.0%

Other(3)

100.0%

Tracked investors reporting ATEX

Investor	Firm	Shares	Market value	% of portfolio	As of
Izzy Englander	Millennium Management	307.9K	$11.8M	0.00%	Mar 31, 2026
Ken Griffin	Citadel Advisors	224.7K	$8.6M	0.00%	Mar 31, 2026
Paul Tudor Jones	Tudor Investment Corp	124.9K	$2.7M	0.01%	Dec 31, 2025

Izzy EnglanderMar 31, 2026
Millennium Management
Shares
307.9K
Value
$11.8M
% Portfolio
0.00%
Ken GriffinMar 31, 2026
Citadel Advisors
Shares
224.7K
Value
$8.6M
% Portfolio
0.00%
Paul Tudor JonesDec 31, 2025
Tudor Investment Corp
Shares
124.9K
Value
$2.7M
% Portfolio
0.01%

Recent activity

Investor	Action	Δ %	Current value	Filing date
Paul Tudor Jones	New	—	$2.7M	Feb 17, 2026
Izzy Englander	New	—	$9.6M	Feb 17, 2026
Izzy Englander	New	—	$11.8M	May 15, 2026
Ken Griffin	New	—	$8.6M	May 15, 2026
Ken Griffin	New	—	$2.4M	Nov 14, 2025

Paul Tudor Jones
New
$2.7MFeb 17, 2026
Izzy Englander
New
$9.6MFeb 17, 2026
Izzy Englander
New
$11.8MMay 15, 2026
Ken Griffin
New
$8.6MMay 15, 2026
Ken Griffin
New
$2.4MNov 14, 2025

Frequently asked questions

How many institutional investors hold ATEX?: 3 tracked institutional investors disclosed a position in ATEX (ANTERIX INC) in their most recent 13F filing.
Who is the largest institutional holder of ATEX?: Izzy Englander, Millennium Management, holds the largest disclosed position in ATEX, valued at $12M.
Did institutional ownership of ATEX increase or decrease?: Across recent 13F filings, tracked investors recorded 5 new positions, 0 increased, 0 reduced, and 0 fully exited ATEX.
Where does this ATEX ownership data come from?: SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.