Donald P. Newman - 24 Feb 2022 Form 4/A - Amendment Insider Report for ALLEGHENY TECHNOLOGIES INC (ATI)

Role: EVP and CFO
Signature: /s/ Amanda J. Skov, Attorney-in-Fact for Donald P. Newman
Issuer symbol: ATI
Transactions as of: 24 Feb 2022
Net transactions value: -$62,051
Form type: 4/A - Amendment
Filing time: 25 Mar 2022, 17:10:15 UTC
Date Of Original Report: 28 Feb 2022
Previous filing: 25 Mar 2022
Next filing: 05 Jan 2023
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ATI	Common Stock, par value $0.10 per share	Tax liability	$62,051	-2,636	-1.8%	$23.54	144,137	24 Feb 2022	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Shares withheld for payment of taxes on restricted stock units awarded on February 24, 2020. One-third of such restricted stock units vested by their terms on February 24, 2022.

Remarks:

This amended Form 4 is filed to reflect an administrative correction to the number of shares withheld for the payment of taxes with respect to the vesting of restricted stock units awarded on February 24, 2020, as reflected on Table I above.