Anterix Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqCM:ATEX Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
18 Dec 25	BuyUS$25,068	Scott Lang	Individual	1,160	US$21.61
08 Dec 25	BuyUS$50,005	Scott Lang	Individual	2,450	US$20.41
18 Nov 25	SellUS$138,303	Gena Ashe	Individual	6,564	US$21.07
18 Sep 25	BuyUS$98,952	Scott Lang	Individual	4,650	US$21.28
19 Aug 25	BuyUS$1,104	Timothy Gray	Individual	50	US$22.07

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of ATEX?
Owner Type	Number of Shares	Ownership Percentage
Public Companies	53,000	0.283%
Individual Insiders	452,492	2.42%
General Public	1,302,514	6.95%
Hedge Funds	5,411,776	28.9%
Institutions	11,513,107	61.5%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 78.27% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
28.9%	Owl Creek Asset Management, L.P.	5,411,776	US$346.5m	0%	46.99%
9.16%	Heard Capital LLC	1,716,738	US$109.9m	0%	4.96%
5.38%	BlackRock, Inc.	1,006,975	US$64.5m	-1.09%	no data
3.69%	GAMCO Investors, Inc.	691,620	US$44.3m	-4.92%	0.16%
3.06%	Vanguard Capital Management, LLC	573,847	US$36.7m	0%	no data
2.69%	QVT Financial LP	503,941	US$32.3m	0%	2.32%
2.67%	PlusTick Management LLC	499,596	US$32.0m	0%	11.38%
2.27%	Dimensional Fund Advisors LP	424,856	US$27.2m	30.8%	no data
2.25%	Jane Street Group, LLC	420,857	US$26.9m	165%	0.02%
2.07%	State Street Global Advisors, Inc.	387,918	US$24.8m	16.2%	no data
2%	Geode Capital Management, LLC	374,301	US$24.0m	3.93%	no data
1.83%	Garnet Equity Capital Holdings, Inc.	343,496	US$22.0m	-13.6%	10.58%
1.64%	Millennium Management LLC	307,922	US$19.7m	-30%	0.01%
1.23%	Potrero Capital Research, LLC	229,561	US$14.7m	0%	7.2%
1.05%	Ayal Capital Advisors Limited	197,119	US$12.6m	-25.6%	5.53%
0.93%	Hudson River Trading LLC	174,925	US$11.2m	306%	0.04%
0.93%	Potomac Capital Management Inc.	173,802	US$11.1m	7.68%	7.87%
0.9%	DG Capital Management, LLC	168,217	US$10.8m	692%	4.99%
0.9%	Bank of America Corporation	167,781	US$10.7m	17.3%	no data
0.88%	Vanguard Portfolio Management, LLC	164,542	US$10.5m	0%	no data
0.86%	Citadel Advisors LLC	161,163	US$10.3m	48.7%	0.01%
0.77%	The Goldman Sachs Group, Inc.	144,615	US$9.3m	69.4%	no data
0.75%	Charles Schwab Investment Management, Inc.	141,388	US$9.1m	1.95%	no data
0.75%	Jeffrey Altman	139,908	US$9.0m	0%	no data
0.72%	Panoramic Capital, Llc	135,000	US$8.6m	0%	4.51%

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2026/05/31 01:08
End of Day Share Price	2026/05/29 00:00
Earnings	2025/12/31
Annual Earnings	2025/03/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

Package	Data	Timeframe	Example US Source ^*
Company Financials	10 years	Income statement Cash flow statement Balance sheet	SEC Form 10-K SEC Form 10-Q
Analyst Consensus Estimates	+3 years	Forecast financials Analyst price targets	Analyst Research Reports Blue Matrix
Market Prices	30 years	Stock prices Dividends, Splits and Actions	ICE Market Data SEC Form S-1
Ownership	10 years	Top shareholders Insider trading	SEC Form 4 SEC Form 13D
Management	10 years	Leadership team Board of directors	SEC Form 10-K SEC Form DEF 14A
Key Developments	10 years	Company announcements	SEC Form 8-K

^* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Anterix Inc. is covered by 8 analysts. 3 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

Analyst	Institution
Michael Crawford	B. Riley Securities, Inc.
Gregory Miller	Canaccord Genuity
Thomas Walkley	Canaccord Genuity