[144] Anterix Inc. SEC Filing

Rhea-AI Filing Summary

The filing is a Form 144 notice reporting proposed sales of Common stock by an issuer-affiliated account and related option exercise activity. The entry list shows multiple restricted stock entries and a Stock Option Exercise on 06/17/2026 with a quantity of 1,226 shares; other listed quantities include 554, 459, 541, 905 and 606 shares tied to various grant or vesting dates.

The header also includes numeric fields shown as 341134.50 and 18732889 alongside a broker address and the exchange NASDAQ; the document lists the broker as Morgan Stanley Smith Barney LLC. This filing reports planned dispositions and related issuer-side exercises/vesting; timing and full proceeds treatment are the items shown in the listed rows.

Insights

Compliance / Insider Transactions Specialist

Form 144 lists multiple restricted-stock vestings and a stock-option exercise with planned sales.

The excerpt enumerates restricted stock entries dated 05/15/2025, 07/12/2025, 08/15/2025, 10/04/2025, 05/15/2026, and a Stock Option Exercise on 06/17/2026 for 1,226 shares. These rows identify transaction types ("Restricted Stock" and "Stock Option Exercise") and per-row share counts as provided.

Broker information appears as Morgan Stanley Smith Barney LLC with an address and the exchange listed as NASDAQ. The filing lists numeric fields 341134.50 and 18732889 in the header; the excerpt does not label those numbers within the visible text, so they are reported here only as shown. Cash or net-proceeds treatment beyond the "Cash" label on the 06/17/2026 exercise line is not elaborated in the provided excerpt.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	4291	341134.50	18732889	06/17/2026	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	05/15/2025	Restricted Stock	Issuer			554	05/15/2025	Not Applicable
Common	07/12/2025	Restricted Stock	Issuer			459	07/12/2025	Not Applicable
Common	08/15/2025	Restricted Stock	Issuer			541	08/15/2025	Not Applicable
Common	06/17/2026	Stock Option Exercise	Issuer			1226	06/17/2026	Cash
Common	10/04/2025	Restricted Stock	Issuer			905	10/04/2025	Not Applicable
Common	05/15/2026	Restricted Stock	Issuer			606	05/15/2026	Not Applicable

* 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

Nothing to Report

144: Remarks and Signature

Remarks

Date of Notice

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)