Robert S. Wetherbee - 05 Aug 2025 Form 4 Insider Report for ATI INC (ATI)

Role: Executive Chairman, Director
Signature: /s/ Amanda J. Skov, Attorney-in-Fact for Robert S. Wetherbee
Issuer symbol: ATI
Transactions as of: 05 Aug 2025
Net transaction value: -$3,733,165
Form type: 4
Filing time: 06 Aug 2025, 17:43:32 UTC
Previous filing: 15 Jul 2025
Next filing: 02 Oct 2025
SEC filing: View on sec.gov

Key filing fact

Robert S. Wetherbee filed Form 4 for ATI INC (ATI) on 06 Aug 2025.

Key facts

This page summarizes Robert S. Wetherbee's Form 4 filing for ATI INC (ATI).
3 reported transactions and 0 derivative rows are listed below.
Filing timestamp: 06 Aug 2025, 17:43.

Change

Previous filing in this sequence was filed on 15 Jul 2025.
Current net transaction value: -$3,733,165.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

See Original Filing

Reporting Owners (1)

CIK 0001572385 Primary reporting owner

WETHERBEE ROBERT S

Relationship: Executive Chairman, Director
Address: 2021 MCKINNEY AVENUE, SUITE 1100, DALLAS
Signature: /s/ Amanda J. Skov, Attorney-in-Fact for Robert S. Wetherbee
Signature date: 06 Aug 2025

Reported transactions

ATI transaction

Common Stock, par value $0.10 per share

Sale

Transaction value: $3,037,071
Shares: -40,777
Change %: -11%
Price: $74.48
Shares after: 315,761
Date: 05 Aug 2025
Ownership: Direct
Footnotes: F1, F2

ATI transaction

Common Stock, par value $0.10 per share

Sale

Transaction value: $543,666
Shares: -7,220
Change %: -2.3%
Price: $75.30
Shares after: 308,541
Date: 05 Aug 2025
Ownership: Direct
Footnotes: F1, F3

ATI transaction

Common Stock, par value $0.10 per share

Sale

Transaction value: $152,428
Shares: -2,003
Change %: -0.65%
Price: $76.10
Shares after: 306,538
Date: 05 Aug 2025
Ownership: Direct
Footnotes: F1, F4

^* indicates a reported price that failed the local validity check.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id	Content
F1	Shares sold pursuant to a 10b5-1 Trading Plan dated December 12, 2025, entered into for personal tax and estate planning purposes.
F2	The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $73.87 to to $74.86. The reporting person undertakes to provide to the Issuer, its security holders and the Staff of the U.S. Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each specific price within the range reported.
F3	The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $74.87 to to $75.86. The reporting person undertakes to provide to the Issuer, its security holders and the Staff of the SEC, upon request, full information regarding the number of shares sold at each specific price within the range reported.
F4	The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $75.87 to to $76.33. The reporting person undertakes to provide to the Issuer, its security holders and the Staff of the SEC, upon request, full information regarding the number of shares sold at each specific price within the range reported.