ATI director granted 905 restricted shares

Kah Marianne reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Kah Marianne reported acquisition or exercise transactions in this Form 4 filing.

ATI Inc. director Marianne Kah received an annual grant of 905 shares of common stock as part of the company’s director compensation program. The restricted stock was granted under ATI’s 2022 Incentive Plan and will vest on the first anniversary of the grant date. Following this award, Kah directly holds a total of 35,075 ATI common shares.

Insider Trade Summary

Grant/Award: 905 shares

Grant/Award 1 txn

Insider Kah Marianne

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock, par value $0.10 per share	905	$0.00	$0.00

Holdings After Transaction: Common Stock, par value $0.10 per share — 35,075 shares (Direct)

Footnotes (2)

1. F1. Annual award of restricted stock granted under the Issuer's 2022 Incentive Plan as part of the Issuer's Director compensation program. The award vests on the first anniversary of the grant date.
2. F2. Annual award granted under the Issuer's 2022 Incentive Plan as part of the Issuer's Director compensation program.

Key Figures

Restricted stock grant: 905 shares Post-transaction holdings: 35,075 shares Transaction date: 2026-05-19

3 metrics

Restricted stock grant 905 shares Annual director award under 2022 Incentive Plan

Post-transaction holdings 35,075 shares Total ATI common shares held directly after grant

Transaction date 2026-05-19 Grant date of restricted stock award

Key Terms

restricted stock, 2022 Incentive Plan, Director compensation program, Grant, award, or other acquisition

4 terms

restricted stock financial

"Annual award of restricted stock granted under the Issuer's 2022 Incentive Plan"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

2022 Incentive Plan financial

"granted under the Issuer's 2022 Incentive Plan as part of the Issuer's Director compensation program"

A 2022 incentive plan is a formal program adopted in 2022 that outlines how a company will reward employees, executives, or directors with cash, stock, or other benefits tied to performance or continued service. Investors care because these plans can change how much ownership exists (dilution), affect reported profits through compensation costs, and influence whether managers are motivated to increase long‑term value—think of it as the rules for a company’s bonus and stock‑award system.

Director compensation program financial

"as part of the Issuer's Director compensation program"

Grant, award, or other acquisition financial

"transaction code description: Grant, award, or other acquisition"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did ATI (ATI) director Marianne Kah report in this Form 4?

Director Marianne Kah reported receiving an annual grant of 905 shares of ATI common stock. The award is part of ATI’s director compensation program under its 2022 Incentive Plan and is structured as restricted stock rather than a cash payment.

How many ATI (ATI) shares did Marianne Kah receive in this grant?

Marianne Kah received 905 shares of ATI common stock in this grant. The filing classifies it as a grant or award acquisition, reflecting equity-based director compensation rather than an open-market purchase or sale of existing shares.

When do Marianne Kah’s newly granted ATI (ATI) restricted shares vest?

The 905 restricted shares granted to Marianne Kah vest on the first anniversary of the grant date. This one-year vesting schedule is part of ATI’s standard director compensation structure under its 2022 Incentive Plan, encouraging continued board service.

How many ATI (ATI) shares does Marianne Kah hold after this transaction?

After the grant, Marianne Kah directly holds a total of 35,075 ATI common shares. This figure includes the newly awarded 905 restricted shares reported in the Form 4, giving investors a snapshot of her current direct equity stake in the company.

Was Marianne Kah’s ATI (ATI) transaction a market buy or sell?

The transaction was not a market buy or sell. It is coded as an award or other acquisition, representing an annual grant of 905 restricted shares under ATI’s 2022 Incentive Plan, provided as equity compensation for her role as a director.

Under which plan was Marianne Kah’s ATI (ATI) stock award granted?

The award was granted under ATI’s 2022 Incentive Plan. The Form 4 footnotes explain it is an annual restricted stock grant made as part of the company’s director compensation program, aligning director pay with equity ownership over time.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/21/2026 - 01:25 PM Learn about SEC filing dates

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
Estimated average burden
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^*

Kah Marianne

(Last) (First) (Middle)

C/O ATI INC.

2021 MCKINNEY AVENUE, SUITE 1100

(Street)

DALLAS TEXAS 75201

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/19/2026

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

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

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

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
Common Stock, par value $0.10 per share	05/19/2026		A		905(1)	A	$0(2)	35,075	D

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

Explanation of Responses:

1. Annual award of restricted stock granted under the Issuer's 2022 Incentive Plan as part of the Issuer's Director compensation program. The award vests on the first anniversary of the grant date.

2. Annual award granted under the Issuer's 2022 Incentive Plan as part of the Issuer's Director compensation program.

	/s/ Amanda J. Skov, Attorney-in-Fact for Marianne Kah	05/21/2026
	** 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 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.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)