ATI (ATI) insider Robert S. Wetherbee plans 60,000-share stock sale

Rhea-AI Filing Summary

ATI insider Robert S. Wetherbee has filed a notice to sell 60,000 shares of ATI common stock. The planned sale, to be executed through Fidelity Brokerage Services on the NYSE, has an aggregate market value of $8,607,600, with 135,863,661 shares outstanding.

The shares to be sold arise from restricted stock vesting awards acquired from the issuer as compensation on January 3 and January 5, 2026, totaling 24,678 and 35,322 shares. Over the past three months, Wetherbee has sold four separate 60,000-share blocks of ATI common stock, with gross proceeds ranging from about $5.9 million to $8.17 million per transaction.

Insights

Insider transactions analyst

Form 144 shows ongoing large ATI insider share sales but no added context.

Robert S. Wetherbee has filed to sell 60,000 ATI common shares with an indicated market value of $8,607,600. The sale is tied to recently vested restricted stock awards received as compensation in early January 2026.

The filing also lists four prior 60,000-share sales in the past three months, with gross proceeds between about $5.9M and $8.17M. The form does not state any reasons for these transactions, and the impact depends on factors such as Wetherbee’s remaining holdings and overall float, which are not detailed here.

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

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	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	60000	8607600.00	135863661	02/17/2026	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	01/03/2026	Restricted Stock Vesting	Issuer			24678	01/03/2026	Compensation
Common	01/05/2026	Restricted Stock Vesting	Issuer			35322	01/05/2026	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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Robert S. Wetherbee 2021 McKinney Avenue Dallas TX 75201	Common	11/18/2025	60000	5900085.54
Robert S. Wetherbee 2021 McKinney Avenue Dallas TX 75201	Common	12/02/2025	60000	5938682.00
Robert S. Wetherbee 2021 McKinney Avenue Dallas TX 75201	Common	12/18/2025	60000	6574475.50
Robert S. Wetherbee 2021 McKinney Avenue Dallas TX 75201	Common	02/10/2026	60000	8168618.59

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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)

FAQ

What does ATI’s latest Form 144 filing by Robert S. Wetherbee disclose?

The Form 144 filing discloses that Robert S. Wetherbee intends to sell 60,000 shares of ATI common stock. The planned sale through Fidelity on the NYSE has an aggregate market value of $8,607,600, based on 135,863,661 ATI shares outstanding.

How many ATI shares is Robert S. Wetherbee planning to sell under this Form 144?

The filing indicates a planned sale of 60,000 ATI common shares. These shares are to be sold through Fidelity Brokerage Services on the NYSE, with the approximate sale date listed as February 17, 2026, and an aggregate market value of $8,607,600.

What is the source of the ATI shares Robert S. Wetherbee plans to sell?

The shares come from restricted stock vesting awards granted by ATI. The filing shows 24,678 shares acquired on January 3, 2026, and 35,322 shares on January 5, 2026, both as compensation from the issuer, matching the 60,000 shares planned for sale.

What recent ATI stock sales has Robert S. Wetherbee already completed?

Over the past three months, Wetherbee has sold four blocks of 60,000 ATI common shares. These occurred on November 18, 2025, December 2, 2025, December 18, 2025, and February 10, 2026, with gross proceeds between about $5.9 million and $8.17 million each.

What is the aggregate market value of the ATI shares in the planned Form 144 sale?

The planned 60,000-share sale has an aggregate market value of $8,607,600. This value is shown alongside a total of 135,863,661 ATI common shares outstanding and reflects the market pricing used in the Form 144 calculation field.

On which exchange will the ATI Form 144 shares be sold and through which broker?

The filing states that the ATI common shares are to be sold on the NYSE. The broker named for this 60,000-share transaction is Fidelity Brokerage Services LLC, located on Salem Street in Smithfield, Rhode Island.