ATI INC — Director's Dealing 2019

May 15, 2019

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ALLEGHENY TECHNOLOGIES INC (ATI)
CIK: 0001018963
Period of Report: 2019-05-10

Reporting Person: CREEL DIANE C (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2019-05-10	Common Stock, par value $0.10 per share	F	56	$23.72	Disposed	51093.851	Direct
2019-05-13	Common Stock, par value $0.10 per share	A	4397	$0.00	Acquired	55490.851	Direct
2019-05-14	Common Stock, par value $0.10 per share	F	29	$22.74	Disposed	55461.851	Direct

Footnotes

F1: Shares withheld for payment of taxes in connection with the May 10, 2019 vesting of restricted stock granted in May 2016.

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 May 10, 2019.

F3: Annual Director award granted under the Issuer's 2017 Incentive Plan as part of the Issuer's Director compensation program.

F4: Shares withheld for payment of taxes in connection with the May 14, 2019 vesting of restricted stock granted in May 2018.

F5: 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 May 14, 2019.