Anterix: Scott Lang plans $1.2M share sale

Scott Lang filed to sell up to 15,000 Anterix common shares under Rule 144, following prior sales of 35,057 shares in the past three months.

Rhea-AI Filing Summary

Anterix Inc. (ATEX) received a notice that Scott Lang plans to sell up to 15,000 shares of Anterix common stock under Rule 144 through Morgan Stanley Smith Barney LLC. These shares relate to an option exercise dated June 15, 2026, with the issuer listed as the source of the shares.

The proposed sale has an aggregate value of $1,200,000, based on the market information provided as of September 21, 2026, when 19,609,786 common shares were outstanding. Over the prior three months, Scott Lang sold 35,057 Anterix common shares for total consideration of $3,162,733.86.

Key Figures

Shares to be sold: 15,000 shares Aggregate market value of proposed sale: $1,200,000.00 Shares outstanding: 19,609,786 shares +4 more

7 metrics

Shares to be sold 15,000 shares Planned sale of Anterix common stock under Rule 144

Aggregate market value of proposed sale $1,200,000.00 Proposed sale of 15,000 Anterix common shares

Shares outstanding 19,609,786 shares Anterix common shares outstanding as of September 21, 2026

Shares sold in past 3 months 35,057 shares Anterix common shares sold by Scott Lang on August 14, 2026

Value of shares sold in past 3 months $3,162,733.86 Consideration for 35,057 Anterix shares sold in prior 3 months

Proposed sale market date September 21, 2026 Date tied to market information for proposed Rule 144 sale

Option exercise date June 15, 2026 Date associated with the Exercised Shares to be sold

Key Terms

Rule 144, Exercised Shares, Securities To Be Sold, Securities Sold During The Past 3 Months

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Exercised Shares financial

"Common | 06/15/2026 | Exercised Shares | ISSUER"

Securities To Be Sold financial

"144: Securities To Be Sold"

Securities Sold During The Past 3 Months financial

"144: Securities Sold During The Past 3 Months"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Form 144 filing disclose for Anterix Inc. (ATEX)?

It discloses that Scott Lang intends to sell up to 15,000 shares of Anterix common stock under Rule 144 through Morgan Stanley Smith Barney LLC, based on an option exercise dated June 15, 2026, with an aggregate value of $1,200,000.

How many Anterix (ATEX) shares is Scott Lang proposing to sell?

Scott Lang is proposing to sell up to 15,000 shares of Anterix common stock. These are identified as Exercised Shares tied to an option exercise on June 15, 2026, with the issuer indicated as the source of the shares.

What is the aggregate value of the proposed Anterix (ATEX) share sale?

The proposed sale has an aggregate market value of $1,200,000.00, as listed in the Form 144 securities information section for the planned sale of 15,000 Anterix common shares.

How many Anterix (ATEX) shares were sold by Scott Lang in the past three months?

Over the past three months, Scott Lang sold 35,057 Anterix common shares, for total consideration of $3,162,733.86, according to the “Securities Sold During The Past 3 Months” section.

How many Anterix (ATEX) shares were outstanding at the time referenced in the Form 144?

The filing reports that 19,609,786 Anterix common shares were outstanding as of the market information date tied to the proposed sale, which is listed as September 21, 2026.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/21/2026 - 04:02 PM Accepted by SEC EDGAR 09/21/2026 - 04:01 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001571601
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	ANTERIX INC.
SEC File Number	001-36827
Address of Issuer	3 Garret Mountain Plaza Suite 401 Woodland Park NEW JERSEY 07424
Phone	(973) 771-0300
Name of Person for Whose Account the Securities are To Be Sold	SCOTT LANG
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	15000	1200000.00	19609786	09/21/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	06/15/2026	Exercised Shares	ISSUER			15000	06/15/2026	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
SCOTT LANG 3 Garret Mountain Plaza Suite 401 Woodland Park NJ 07424	Common	08/14/2026	35057	3162733.86

144: Remarks and Signature

Remarks
Date of Notice	09/21/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	06/22/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Scott A Lang
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)