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ATI (ATI) CEO Kimberly Fields sells 20,693 shares under Rule 10b5-1 plan

Filing Impact
(Very High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

ATI Inc. Chair, President and CEO Kimberly A. Fields reported open-market sales of company common stock over three consecutive days. She sold 13,269 shares at $202.48 on June 22, 2026, 3,641 shares at $197.48 on June 23, 2026, and 3,783 shares at $197.21 on June 24, 2026, for a total of 20,693 shares sold.

After these transactions, she directly held 197,321 shares of ATI common stock. According to a footnote, the sales were made under a Rule 10b5-1 trading plan dated February 5, 2026, established for personal tax and estate planning purposes, which indicates the timing was pre-arranged rather than discretionary.

Positive

  • None.

Negative

  • None.

Insights

CEO’s pre-planned stock sales look routine in scale and structure.

ATI’s Chair, President and CEO Kimberly A. Fields executed three open-market sales totaling 20,693 shares at prices around $197–$202 per share. These transactions reduced, but did not eliminate, her direct equity exposure to ATI.

Following the sales, she still held 197,321 shares directly, suggesting these trades represent only a portion of her position. A footnote states the sales occurred under a Rule 10b5-1 trading plan dated February 5, 2026 for personal tax and estate planning purposes, framing them as pre-scheduled rather than opportunistic.

The filing shows no derivative exercises or tax-withholding entries, so the activity is purely open-market selling within an established plan. Subsequent filings may provide further context if additional plan-driven transactions occur.

Insider Fields Kimberly A
Role Chair, President and CEO
Sold 20,693 shs ($4.15M)
Type Security Shares Price Value
Sale Common Stock, par value $0.10 per share 3,783 $197.21 $746K
Sale Common Stock, par value $0.10 per share 3,641 $197.48 $719K
Sale Common Stock, par value $0.10 per share 13,269 $202.48 $2.69M
Holdings After Transaction: Common Stock, par value $0.10 per share — 197,321 shares (Direct, null)
Footnotes (1)
  1. [object Object]
Total shares sold 20,693 shares Net insider sales across three transactions in June 2026
Shares sold June 22, 2026 13,269 shares at $202.48/share Open-market sale of ATI common stock
Shares sold June 23, 2026 3,641 shares at $197.48/share Open-market sale of ATI common stock
Shares sold June 24, 2026 3,783 shares at $197.21/share Open-market sale of ATI common stock
Shares held after transactions 197,321 shares Direct ATI holdings by Kimberly A. Fields after June 24, 2026
Net buy/sell direction Net-sell of 20,693 shares Form 4 transaction summary for June 22–24, 2026
Rule 10b5-1 Trading Plan regulatory
"Shares sold pursuant to a 10b5-1 Trading Plan dated February 5, 2026"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
open-market sale financial
"transaction_action: open-market sale of common stock"
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
Common Stock, par value $0.10 per share financial
"security_title: Common Stock, par value $0.10 per share"
Form 4 regulatory
"INSIDER FILING DATA (Form 4)"
Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.
transaction code "S" regulatory
"transaction_code: "S" indicating a sale in open market or private transaction"
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Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED 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*
Fields Kimberly A
(Last)(First)(Middle)
C/O ATI INC.
2021 MCKINNEY AVE., 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)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
Chair, President and CEO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/22/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock, par value $0.10 per share06/22/2026S13,269(1)D$202.48204,745D
Common Stock, par value $0.10 per share06/23/2026S3,641(1)D$197.48201,104D
Common Stock, par value $0.10 per share06/24/2026S3,783(1)D$197.21197,321D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. Shares sold pursuant to a 10b5-1 Trading Plan dated February 5, 2026, entered into for personal tax and estate planning purposes.
/s/ Amanda J. Skov, Attorney-in-Fact for Kimberly A. Fields06/24/2026
** Signature of Reporting PersonDate
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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did ATI (ATI) report for Kimberly A. Fields?

ATI reported that Chair, President and CEO Kimberly A. Fields sold 20,693 shares of common stock in three open-market transactions, executed between June 22 and June 24, 2026, at prices near $197–$202 per share under a pre-arranged trading plan.

At what prices did ATI CEO Kimberly A. Fields sell ATI stock?

Kimberly A. Fields sold ATI common stock at $202.48 per share on June 22, 2026, $197.48 per share on June 23, 2026, and $197.21 per share on June 24, 2026, according to the reported Form 4 transactions.

How many ATI shares did Kimberly A. Fields retain after these sales?

After the reported open-market sales, Kimberly A. Fields directly held 197,321 shares of ATI common stock. This holding reflects her remaining direct equity position following the three transactions disclosed in the Form 4 filing for June 22–24, 2026.

Were Kimberly A. Fields’ ATI stock sales under a Rule 10b5-1 plan?

Yes. A footnote explains that the ATI stock sales were executed pursuant to a Rule 10b5-1 trading plan dated February 5, 2026, which was entered into for personal tax and estate planning purposes, indicating the transactions were pre-arranged rather than timed discretionarily.

Did ATI’s CEO exercise options or only sell common stock in this Form 4?

The Form 4 shows only sales of ATI common stock by Kimberly A. Fields, totaling 20,693 shares. The derivative summary is empty, and there are no reported option exercises, conversions, gifts, or tax-withholding entries in this particular filing.

How many ATI insider sales were reported in this Form 4 filing?

The Form 4 filing reports three insider sale transactions by Kimberly A. Fields. Each transaction involved non-derivative ATI common stock and is coded as an open-market or private sale (transaction code “S”) on June 22, 23, and 24, 2026.