ATI insider plans sale of 60,000 common shares (Form 144)

ATI filed a Form 144 notice indicating that an insider plans to sell 60,000 shares of ATI common stock through Fidelity Brokerage Services LLC, with sales expected to begin around November 18, 2025 on the NYSE.

Rhea-AI Filing Summary

ATI filed a Form 144 notice indicating that an insider plans to sell 60,000 shares of ATI common stock through Fidelity Brokerage Services LLC, with sales expected to begin around November 18, 2025 on the NYSE. The planned sale has an aggregate market value of $5,866,200. These 60,000 shares were acquired as restricted stock that vested as compensation on January 6, 2025. ATI had 135,863,661 shares outstanding, providing context for the relative size of this proposed sale.

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Accepted by SEC EDGAR 11/18/2025 - 10:40 AM 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	0001572385
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	ATI INC
SEC File Number	001-12001
Address of Issuer	2021 MCKINNEY AVENUE DALLAS TEXAS 75201
Phone	4123942800
Name of Person for Whose Account the Securities are To Be Sold	WETHERBEE ROBERT S
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	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	60000	5866200.00	135863661	11/18/2025	NYSE

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	01/06/2025	Restricted Stock Vesting	Issuer			60000	01/06/2025	Compensation

* 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	11/18/2025
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	08/15/2025
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/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Robert S. Wetherbee
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)