Planned ATI (NYSE: ATI) insider sale totals 60,000 shares

Rhea-AI Filing Summary

ATI Inc Executive Chairman Robert S. Wetherbee reported open-market sales of 60,000 shares of common stock. The sales occurred on February 10 and 17, 2026 at weighted average prices ranging from about $143.45 to $146.88 per share.

The transactions were made under a pre-established Rule 10b5-1 trading plan dated August 15, 2025, entered into for personal tax and estate planning purposes. After these sales, Wetherbee directly owns about 269,623.3409 shares of ATI common stock.

Insider Trade Summary

Net Seller: 60,000 shares ($8,737,284)

Net Sell 4 txns

Insider WETHERBEE ROBERT S

Role Executive Chairman

Sold 60,000 shs ($8.74M)

Type	Security	Shares	Price	Value
Sale	Common Stock, par value $0.10 per share	12,435	$144.01	$1.79M
Sale	Common Stock, par value $0.10 per share	8,403	$145.17	$1.22M
Sale	Common Stock, par value $0.10 per share	28,724	$146.07	$4.20M
Sale	Common Stock, par value $0.10 per share	10,438	$146.67	$1.53M

Holdings After Transaction: Common Stock, par value $0.10 per share — 317,188.341 shares (Direct)

Footnotes (1)

1. Shares sold pursuant to a 10b5-1 Trading Plan dated August 15, 2025, entered into for personal tax and estate planning purposes. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $143.45 to $144.45. The reporting person undertakes to provide to the Issuer, its security holders and the Staff of the U.S. Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each specific price within the range reported. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $144.48 to $145.47. The reporting person undertakes to provide to the Issuer, its security holders and the Staff of the SEC, upon request, full information regarding the number of shares sold at each specific price within the range reported. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $145.51 to $146.51. The reporting person undertakes to provide to the Issuer, its security holders and the Staff of the SEC, upon request, full information regarding the number of shares sold at each specific price within the range reported. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $146.52 to $146.88, The reporting person undertakes to provide to the Issuer, its security holders and the Staff of the U. S. Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each specific price within the range reported.

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
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).

X

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^*

WETHERBEE ROBERT S

(Last) (First) (Middle)

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)

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

3. Date of Earliest Transaction (Month/Day/Year)
02/17/2026

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
Common Stock, par value $0.10 per share	02/17/2026		S		12,435(1)	D	$144.01(2)	317,188.3409	D
Common Stock, par value $0.10 per share	02/17/2026		S		8,403(1)	D	$145.17(3)	308,785.3409	D
Common Stock, par value $0.10 per share	02/17/2026		S		28,724(1)	A	$146.07(4)	280,061.3409	D
Common Stock, par value $0.10 per share	02/10/2026		S		10,438(1)	D	$146.67(5)	269,623.3409	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. Shares sold pursuant to a 10b5-1 Trading Plan dated August 15, 2025, entered into for personal tax and estate planning purposes.

2. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $143.45 to $144.45. The reporting person undertakes to provide to the Issuer, its security holders and the Staff of the U.S. Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each specific price within the range reported.

3. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $144.48 to $145.47. The reporting person undertakes to provide to the Issuer, its security holders and the Staff of the SEC, upon request, full information regarding the number of shares sold at each specific price within the range reported.

4. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $145.51 to $146.51. The reporting person undertakes to provide to the Issuer, its security holders and the Staff of the SEC, upon request, full information regarding the number of shares sold at each specific price within the range reported.

5. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $146.52 to $146.88, The reporting person undertakes to provide to the Issuer, its security holders and the Staff of the U. S. Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each specific price within the range reported.

	/s/ Amanda J. Skov, Attorney-in-Fact for Robert S. Wetherbee	02/19/2026
	** 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.

FAQ

What insider transaction did ATI (ATI) report for Robert S. Wetherbee?

ATI reported that Executive Chairman Robert S. Wetherbee sold 60,000 shares of common stock. The Form 4 shows open-market sales on February 10 and 17, 2026, executed under a pre-set Rule 10b5-1 trading plan for personal tax and estate planning purposes.

How many ATI (ATI) shares did the executive sell and at what prices?

Robert S. Wetherbee sold a total of 60,000 ATI common shares. The weighted average sale prices ranged from about $143.45 to $146.88 per share, across multiple open-market transactions disclosed in the Form 4 filing for February 10 and 17, 2026.

Does Robert S. Wetherbee still hold ATI (ATI) shares after these sales?

Yes. After the reported transactions, Robert S. Wetherbee directly owns about 269,623.3409 ATI common shares. The Form 4 lists this remaining direct ownership following the series of open-market sales executed under his Rule 10b5-1 trading plan.

Were the ATI (ATI) insider sales discretionary or under a trading plan?

The ATI insider sales were made under a Rule 10b5-1 trading plan. The footnote states the plan was dated August 15, 2025 and was established for personal tax and estate planning purposes, indicating the sales followed a pre-arranged schedule rather than discretionary timing.

What type of security was involved in the ATI (ATI) insider transactions?

The transactions involved ATI common stock with a par value of $0.10 per share. All four reported trades in the Form 4 relate to this same class of non-derivative equity security, sold in open-market transactions on the listed February 2026 trade dates.