ATI Inc. (ATI) files Form 4 for 1,709 performance stock units to VP CAO

Rhea-AI Filing Summary

ATI Inc. reported that one of its officers received a new equity award in the form of performance stock units (PSUs). On 12/05/2025, the officer, listed as VP Chief Accounting Officer, was granted 1,709 PSUs under ATI's 2022 Incentive Plan.

Each PSU represents a contingent right to receive one share of ATI common stock if the stock reaches a specified target market price, based on a 10-trading-day average on the NYSE, for at least 20 consecutive trading days before December 31, 2029. Depending on how high the Average Market Price goes above that target, each PSU can convert into up to a maximum of three shares. Any vested shares are generally scheduled to be paid in two equal installments in early 2030 and 2031.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Miller Michael Benjamin

Role VP Chief Accounting Officer

Type	Security	Shares	Price	Value
Grant/Award	Performance Stock Unit	1,709	$0.00	--

Holdings After Transaction: Performance Stock Unit — 1,709 shares (Direct)

Footnotes (1)

1. 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. Awarded under the Issuer's 2022 Incentive Plan.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

OMB APPROVAL

OMB Number:			3235-0287
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hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Miller Michael Benjamin

(Last) (First) (Middle)

C/O ATI INC.

2021 MCKINNEY AVENUE, SUITE 1100

(Street)

DALLAS TX 75201

(City) (State) (Zip)

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

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	VP Chief Accounting Officer

3. Date of Earliest Transaction (Month/Day/Year)
12/05/2025

4. 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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Performance Stock Unit	(1)	12/05/2025		A		1,709		12/31/2029(1)	12/31/2029(1)	Common Stock, par value $0.10 per share	1,709	(2)	1,709	D

Explanation of Responses:

1. 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.

2. Awarded under the Issuer's 2022 Incentive Plan.

	/s/ Michael B. Miller	12/09/2025
	** 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 4 (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

What did ATI (ATI) disclose in this Form 4 filing?

ATI disclosed that its VP Chief Accounting Officer received an equity award of 1,709 performance stock units (PSUs) on 12/05/2025 under the company’s 2022 Incentive Plan.

How do the ATI (ATI) performance stock units from this award work?

Each PSU represents a contingent right to receive one share of ATI common stock if the stock achieves a specified target market price, based on a 10-trading-day average on the NYSE, for at least 20 consecutive trading days before December 31, 2029.

Can the ATI (ATI) PSUs result in more than one share per unit?

Yes. The award states that each PSU may result in the right to receive additional shares of ATI common stock, up to a maximum of three shares per PSU, if the stock achieves higher specified Average Market Prices above the target before December 31, 2029.

When are the shares from these ATI (ATI) PSUs expected to be paid?

The disclosure states that vested shares, if any, are generally payable in two equal installments in early 2030 and 2031, subject to the performance conditions being met.

Under which plan were these ATI (ATI) performance stock units granted?

The 1,709 performance stock units were awarded under ATI Inc.'s 2022 Incentive Plan, as specified in the disclosure.

Who is the reporting person in this ATI (ATI) Form 4 and what is their role?

The reporting person is identified as an officer of ATI with the title VP Chief Accounting Officer, and the filing is made by one reporting person.