Donald P. Newman - Jan 6, 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
Stock symbol: ATI
Transactions as of: Jan 6, 2022
Transactions value $: -$62,475
Form type: 4/A - Amendment
Date filed: 3/25/2022, 05:09 PM
Date Of Original Report: Jan 7, 2022
Previous filing: Mar 25, 2022
Next filing: Mar 25, 2022

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	-$62.5K	-3.57K	-2.37%	$17.50	147K	Jan 6, 2022	Direct	F1, F2

* 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 January 6, 2020. One-third of such restricted stock units vested by their terms on January 6, 2022.
F2	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 on January 6, 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 January 6, 2020, as reflected on Table I above.