ATI Inc (NYSE: ATI) CEO sells 40,000 shares under 10b5-1 plan
Filing Impact
Filing Sentiment
Form Type
4
Rhea-AI Filing Summary
ATI Inc President, CEO and Director Kimberly A. Fields sold a total of 40,000 shares of ATI common stock in multiple open-market transactions on May 11, 2026. The trades were executed under a pre-arranged Rule 10b5-1 trading plan dated February 5, 2026, established for personal tax and estate planning purposes.
The reported weighted-average sale prices came from multiple trades in price ranges between $153.82 and $161.38 per share. Following these sales, Fields directly holds 316,463 ATI shares, indicating she retains a substantial equity stake in the company after the planned dispositions.
Positive
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Negative
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Insights
CEO’s 40,000-share planned sale looks like routine diversification with limited signal.
ATI Inc’s President and CEO, Kimberly A. Fields, reported selling 40,000 shares of common stock on May 11, 2026 through seven open-market transactions. All trades are classified as sales of non-derivative common stock, with no option exercises or derivative activity reported.
A footnote states the sales were made under a Rule 10b5-1 trading plan dated February 5, 2026 for personal tax and estate planning purposes. Such pre-arranged plans are typically set in advance and reduce the informational value of trade timing, suggesting these transactions are more about personal planning than a change in company outlook.
After the transactions, Fields directly holds 316,463 ATI shares, meaning she retains a sizable position despite the net sale. No derivative positions are listed in the derivative summary. Subsequent company filings may provide further context, but based on this data alone, the event appears routine rather than thesis-changing.
Insider Trade Summary 10b5-1
Net Seller: 40,000 shares ($6,368,238)
Net Sell
7 txns
Insider
Fields Kimberly A
Role
President, CEO and Director
Sold
40,000 shs ($6.37M)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Common Stock, par value $0.10 per share | 1,300 | $154.02 | $200K |
| Sale | Common Stock, par value $0.10 per share | 5,568 | $156.29 | $870K |
| Sale | Common Stock, par value $0.10 per share | 3,350 | $157.51 | $528K |
| Sale | Common Stock, par value $0.10 per share | 6,420 | $158.38 | $1.02M |
| Sale | Common Stock, par value $0.10 per share | 2,600 | $159.38 | $414K |
| Sale | Common Stock, par value $0.10 per share | 11,982 | $160.60 | $1.92M |
| Sale | Common Stock, par value $0.10 per share | 8,780 | $161.12 | $1.41M |
Holdings After Transaction:
Common Stock, par value $0.10 per share — 316,463 shares (Direct, null)
Footnotes (1)
- Shares sold pursuant to a 10b5-1 Trading Plan dated February 5, 2026, 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 $153.82 to $154.65. 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 $155.78 to $156.76. 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 $156.91 to $157.90. 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 $157.91 to $158.88. 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 $158.94 to $159.84. 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 $159.99 to 160.98. 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 $160.99 to 161.38. 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.
Key Figures
Shares sold: 40,000 shares
Remaining direct holdings: 316,463 shares
Highest reported sale price: $161.38 per share
+2 more
5 metrics
Shares sold
40,000 shares
Total ATI common stock sold on May 11, 2026
Remaining direct holdings
316,463 shares
ATI common stock directly owned after reported sales
Highest reported sale price
$161.38 per share
Upper end of disclosed weighted-average price ranges
Lowest reported sale price
$153.82 per share
Lower end of disclosed weighted-average price ranges
Sell transactions
7 transactions
Non-derivative open-market sales of ATI common stock
Key Terms
10b5-1 Trading Plan, weighted average price, open-market sale, estate planning, +1 more
5 terms
10b5-1 Trading Plan financial
"Shares sold pursuant to a 10b5-1 Trading Plan dated February 5, 2026, entered into for personal tax and estate planning purposes."
A 10b5-1 trading plan is a pre-arranged strategy that allows company insiders to buy or sell company stock at set times, regardless of their current knowledge about the company's situation. It acts like a scheduled appointment for trading, helping prevent the appearance of impropriety or insider trading. This plan provides a way for insiders to sell or buy shares in a controlled, transparent manner, offering reassurance to investors about fair trading practices.
weighted average price financial
"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $153.82 to $154.65."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
open-market sale financial
"transaction_action": "open-market sale"
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.
estate planning financial
"entered into for personal tax and estate planning purposes."
A set of instructions and legal steps that decide who gets your money, property and other assets, and who will manage them if you become unable to do so. For investors it matters because thoughtful planning can reduce taxes and delays, protect heirs, and keep investments from being tied up in court—think of it as a clear map and emergency kit that preserves value and directs where assets go when you can’t.
U.S. Securities and Exchange Commission regulatory
"Staff of the U.S. Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold"
The U.S. Securities and Exchange Commission is a government agency responsible for overseeing the stock market and protecting investors. It sets rules to ensure that companies share truthful information and that trading is fair, helping to maintain trust in the financial system. This oversight is important because it helps prevent fraud and ensures that investors can make informed decisions.
FAQ
What type of transactions are reported for ATI (ATI) CEO Kimberly Fields in this Form 4?
All reported transactions are open-market sales of ATI common stock, coded “S.” The filing shows seven non-derivative sales, no option exercises, no gifts, and no tax-withholding dispositions, resulting in a net reduction of 40,000 shares in her direct holdings.