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
14 Aug 26	SellUS$3,162,734	Scott Lang	Individual	35,057	US$91.69
18 Jun 26	SellUS$13,643	Scott Lang	Individual	170	US$80.25
17 Jun 26	SellUS$243,668	Elena Marquez	Individual	3,065	US$79.50
16 Jun 26	SellUS$560,000	Mahvash Yazdi	Individual	7,000	US$80.00
15 Jun 26	SellUS$328,560	Gena Ashe	Individual	4,000	US$82.14
15 Jun 26	SellUS$279,403	Mark Fleischhauer	Individual	3,500	US$79.83
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

Insider Trading Volume

Insider Buying: ATEX insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of ATEX?
Owner Type	Number of Shares	Ownership Percentage
Individual Insiders	527,545	2.69%
General Public	581,929	2.97%
Hedge Funds	5,411,776	27.6%
Institutions	13,088,536	66.7%

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

Top Shareholders

Top 25 shareholders own 86.48% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
27.6%	Owl Creek Asset Management, L.P.	5,411,776	US$461.7m	0%	45.37%
15.8%	T. Rowe Price Group, Inc.	3,098,470	US$264.3m	38,800%	0.02%
8.75%	Heard Capital LLC	1,716,738	US$146.5m	0%	6.73%
5.48%	BlackRock, Inc.	1,075,115	US$91.7m	6.75%	no data
3.54%	GAMCO Investors, Inc.	694,020	US$59.2m	0.35%	0.22%
3.44%	Vanguard Capital Management, LLC	674,001	US$57.5m	-2.78%	no data
2.65%	PlusTick Management LLC	520,000	US$44.4m	4.08%	21.54%
2.53%	State Street Investment Management	495,950	US$42.3m	27.9%	no data
1.98%	Geode Capital Management, LLC	388,076	US$33.1m	3.68%	no data
1.96%	QVT Financial LP	383,941	US$32.8m	-23.8%	1.5%
1.89%	Dimensional Fund Advisors LP	370,964	US$31.6m	-12.7%	no data
1.89%	FMR LLC	369,772	US$31.5m	174%	no data
0.99%	Invesco Capital Management LLC	194,670	US$16.6m	0%	no data
0.81%	Vanguard Portfolio Management, LLC	158,469	US$13.5m	-3.69%	no data
0.8%	Garnet Equity Capital Holdings, Inc.	156,119	US$13.3m	-54.6%	6.73%
0.79%	Potomac Capital Management Inc.	155,071	US$13.2m	-10.8%	11.36%
0.79%	Panoramic Capital, Llc	154,377	US$13.2m	14.4%	5.75%
0.72%	Jeffrey Altman	141,506	US$12.1m	1.14%	no data
0.71%	Charles Schwab Investment Management, Inc.	139,278	US$11.9m	-1.49%	no data
0.69%	Bank of America Corporation	134,686	US$11.5m	-19.7%	no data
0.63%	Northern Trust Global Investments	123,231	US$10.5m	4.78%	no data
0.6%	The Goldman Sachs Group, Inc.	117,770	US$10.0m	-18.6%	no data
0.59%	Kirr, Marbach & Company, LLC	116,069	US$9.9m	1.98%	1.8%
0.47%	D. E. Shaw & Co., L.P.	92,990	US$7.9m	1,530%	0.01%
0.39%	OpenArc Corporate Advisory, LLC	75,576	US$6.4m	2.34%	0.08%

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2026/08/21 22:10
End of Day Share Price	2026/08/21 00:00
Earnings	2026/06/30
Annual Earnings	2026/03/31

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