ATI Inc. (NYSE: ATI) CFO details stock and performance unit awards

Rhea-AI Filing Summary

ATI Inc. executive James Robert Foster, who serves as SVP, Finance and CFO, reported his beneficial ownership of company securities as of January 1, 2026. He directly holds 29,622 shares of ATI common stock, including restricted stock units granted in 2023, 2024, and 2025 that vest in three annual installments and are settled in shares when they vest.

Foster also holds performance stock units (PSUs) that may convert into ATI common shares if market price conditions are met. One PSU award covers 30,769 shares tied to stock price performance measured against a 20-trading-day average through December 31, 2025, with any vested shares generally payable in early 2026 and 2027. A second PSU award covers 17,094 shares based on longer-term price targets measured through December 31, 2029, with any vested shares generally payable in early 2030 and 2031.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Foster James Robert

(Last) (First) (Middle)

C/O ATI INC.

2021 MCKINNEY AVENUE

(Street)

DALLAS TX 75201

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
01/01/2026

3. Issuer Name and Ticker or Trading Symbol
ATI INC [ ATI ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, Finance and CFO

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock, par value $0.10 per share	29,622(1)	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Performance Stock Units	12/31/2025(2)	12/31/2025(2)	Common Stock, par value $0.10 per share	30,769	$0.00(2)	D
Performance Stock Units	12/31/2029(3)	12/31/2029(3)	Common Stock, par value $0.10 per share	17,094	$0.00(3)	D

Explanation of Responses:

1. Inclusive of 2,865, 2,587 and 4,194 restricted stock units awarded in 2023, 2024 and 2025, respectively, that in each case vest in three annual installments and are settled in shares of the Issuer's Common Stock upon vesting.

2. Each Performance Stock Unit ("PSU") represents a contingent right to receive one share of the Issuer's Common Stock if the Issuer's Common Stock achieved a specified target market price (based on a 20-trading day average) on the New York Stock Exchange for at least 20 consecutive trading dates (the "20-Day Average Market Price") prior to December 31, 2025. Each PSU may result in the right to receive additional shares of the Issuer's Common Stock, up to a maximum of three shares per PSU, to the extent that the Issuer's Common Stock achieved 20-Day Average Market Prices at specified levels in excess of the target market price prior to December 31, 2025. Vested shares, if any, generally are payable in two equal installments in early 2026 and 2027.

3. Each Performance Stock Unit ("PSU") represents a contingent right to receive one share of the Issuer's Common Stock if the Issuer's Common Stock achieves a specified target market price (based on a 10-trading day average) on the NYSE for at least 20 consecutive trading days (the "Average Market Price") prior to December 31, 2029. Each PSU may result in the right to receive additional shares of the Issuer's Common Stock, up to a maximum of three shares per PSU, to the extent that the Issuer's Common Stock acheives Average Market Prices at specified levels in excess of the target market price prior to December 31, 2029. Vested shares, if any, generally are apyable in two equal installments in early 2030 and 2031.

	/s/ Amanda J. Skov, Attorney-in-Fact for James Robert Foster	01/23/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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FAQ

Who is the reporting person in ATI (ATI) Form 3 and what is their role?

The reporting person is James Robert Foster, who serves as SVP, Finance and CFO of ATI Inc.. The filing lists his beneficial ownership of ATI common stock and performance stock units as of January 1, 2026.

How many ATI (ATI) common shares does James Robert Foster beneficially own?

James Robert Foster beneficially owns 29,622 shares of ATI common stock directly. This amount includes restricted stock units awarded in 2023, 2024, and 2025 that vest in three annual installments and are settled in shares upon vesting.

What performance stock units does the ATI (ATI) CFO hold that are tied to 2025 market-price targets?

Foster holds 30,769 performance stock units that each represent a contingent right to receive one share of ATI common stock if specified target market prices, based on a 20-trading day average, are achieved on the NYSE before December 31, 2025. Each PSU can result in up to three shares depending on how far the stock price exceeds the target, with any vested shares generally payable in two equal installments in early 2026 and 2027.

What long-term performance stock units through 2029 are reported for ATI (ATI) CFO James Robert Foster?

Foster also holds 17,094 performance stock units that are tied to ATI’s stock achieving specified target market prices, based on a 10-trading day average and at least 20 consecutive trading days, before December 31, 2029. Each unit can result in up to three shares of common stock depending on price levels achieved, with any vested shares generally payable in two equal installments in early 2030 and 2031.

Are the performance stock units held by ATI (ATI) CFO James Robert Foster cash-settled or share-settled?

The filing states that each performance stock unit represents a contingent right to receive shares of ATI common stock. For both PSU awards, any vested units are described as being payable in shares of common stock in two equal installments following the applicable performance period.

Do the restricted stock units reported by ATI (ATI) CFO have time-based vesting?

Yes. The filing explains that the restricted stock units granted in 2023, 2024, and 2025 each vest in three annual installments and are settled in shares of ATI common stock as they vest.