ATI INC — Director's Dealing 2023

Jan 5, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ATI INC (ATI)
CIK: 0001018963
Period of Report: 2023-01-03

Reporting Person: Harris Timothy J (Senior VP and CDIO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-01-03	Common Stock, par value $0.10 per share	A	10148	$0.00	Acquired	95435	Direct
2023-01-04	Common Stock, par value $0.10 per share	F	5701	$30.38	Disposed	88734	Direct
2023-01-04	Common Stock, par value $0.10 per share	F	3279	$30.38	Disposed	86455	Direct

Footnotes

F1: Award of restricted stock units, which are settled in shares of stock upon vesting. The award vests in three equal annual installments on each of the first three anniversaries of the grant date.

F2: Awarded under ATI's 2022 Incentive Plan.

F3: Shares withheld for payment of taxes on restricted stock units awarded on January 4, 2021. One-third of such restricted stock units vested by their terms on January 4, 2023.

F4: Represents the average of the high and low trading prices for one share of the Issuer's common stock on the New York Stock Exchange ("NYSE") on January 4, 2023.

F5: Shares withheld for payment of taxes on restricted stock units awarded on January 4, 2022. One-third of such restricted stock units vested by their terms on January 4, 2023.