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Timothy J. Harris - OfficerOpen-market sale$1.73M
About ATI INC (ATI)
ATI INC is an SEC registrant, filing under CIK 0001018963, classified as steel pipe and tubes. We track it alongside the rest of the Materials sector.
ATI Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 12 | 134,087 | $27.53M |
ATI insider transactions (Form 4)
5272 Form 4 filings on record, the earliest from Oct 16, 2024, newest first. Filing history page 2 of 3.
| Traded | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
 Kimberly A. Fields - Officer | Grant or award | Common Stock, par value $0.10 per share | 12,510 | $0.00 | - | |
| Kimberly A. Fields - Officer | Option exercise | Common Stock, par value $0.10 per share | 98,620 | $0.00 | - | |
| Kimberly A. Fields - Officer | Tax withholding / forfeiture | Common Stock, par value $0.10 per share | 38,871 | $121.08 | $4.71M | |
| Kimberly A. Fields - Officer | Grant or award | Common Stock, par value $0.10 per share | 82,216 | $0.00 | - | |
| Kimberly A. Fields - Officer | Tax withholding / forfeiture | Common Stock, par value $0.10 per share | 32,352 | $121.08 | $3.92M | |
| Kimberly A. Fields - Officer | Tax withholding / forfeiture | Common Stock, par value $0.10 per share | 7,028 | $121.08 | $851K | |
| Kimberly A. Fields - Officer | Option exercise | Performance Stock Unit | 35,898 | $0.00 | - | |
| Timothy J. Harris - Officer | Grant or award | Common Stock, par value $0.10 per share | 2,677 | $0.00 | - | |
| Timothy J. Harris - Officer | Option exercise | Common Stock, par value $0.10 per share | 70,442 | $0.00 | - | |
| Timothy J. Harris - Officer | Tax withholding / forfeiture | Common Stock, par value $0.10 per share | 30,918 | $121.08 | $3.74M | |
| Timothy J. Harris - Officer | Grant or award | Common Stock, par value $0.10 per share | 46,318 | $0.00 | - | |
| Timothy J. Harris - Officer | Tax withholding / forfeiture | Common Stock, par value $0.10 per share | 20,283 | $121.08 | $2.46M | |
| Timothy J. Harris - Officer | Tax withholding / forfeiture | Common Stock, par value $0.10 per share | 3,359 | $121.08 | $407K | |
| Timothy J. Harris - Officer | Option exercise | Performance Stock Unit | 25,641 | $0.00 | - | |
| Vaishali S. Bhatia - Officer | Grant or award | Common Stock, par value $0.10 per share | 3,152 | $0.00 | - | |
| Vaishali S. Bhatia - Officer | Tax withholding / forfeiture | Common Stock, par value $0.10 per share | 1,944 | $121.08 | $235K | |
 Robert S. Wetherbee - Officer | Open-market sale | Common Stock, par value $0.10 per share | 6,507 | $108.86 | $708K | |
| Robert S. Wetherbee - Officer | Open-market sale | Common Stock, par value $0.10 per share | 47,355 | $109.57 | $5.19M | |
| Robert S. Wetherbee - Officer | Open-market sale | Common Stock, par value $0.10 per share | 6,158 | $110.34 | $679K | |
| Kimberly A. Fields - Officer | Grant or award | Performance Stock Unit | 34,188 | - footnote F2 | - | |
| ||||||
| Vaishali S. Bhatia - Officer | Grant or award | Performance Stock Unit | 6,837 | - footnote F2 | - | |
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| Timothy J. Harris - Officer | Grant or award | Performance Stock Unit | 6,837 | - footnote F2 | - | |
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| Michael Benjamin Miller - Officer | Grant or award | Performance Stock Unit | 1,709 | - footnote F2 | - | |
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| Timothy J. Harris - Officer | Open-market sale | Common Stock, par value $0.10 per share | 10,542 footnote F1 | $97.88 | $1.03M | |
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| Tina Killough Busch - Officer | Open-market sale | Common Stock, par value $0.10 per share | 2,598 | $93.26 | $242K | |
 M. Leroy Ball | Gift | Common Stock, par value $0.10 per share | 185 footnote F1 | $0.00 | - | |
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| Jean Lydon-Rodgers | Grant or award | Common Stock, par value $0.10 per share | 631 footnote F1 | $0.00 | - | |
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| Elizabeth Hefley Lund | Grant or award | Common Stock, par value $0.10 per share | 631 footnote F1 | $0.00 | - | |
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| Robert S. Wetherbee - Officer | Open-market sale | Common Stock, par value $0.10 per share | 8,291 footnote F1 | $97.20 footnote F2 | $806K | |
| Robert S. Wetherbee - Officer | Open-market sale | Common Stock, par value $0.10 per share | 24,711 footnote F1 | $98.21 footnote F3 | $2.43M | |
| Robert S. Wetherbee - Officer | Open-market sale | Common Stock, par value $0.10 per share | 26,998 footnote F1 | $98.80 footnote F4 | $2.67M | |
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| Timothy J. Harris - Officer | Open-market sale | Common Stock, par value $0.10 per share | 10,542 footnote F1 | $97.77 | $1.03M | |
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| Timothy J. Harris - Officer | Open-market sale | Common Stock, par value $0.10 per share | 10,543 footnote F1 | $97.69 | $1.03M | |
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| Timothy J. Harris - Officer | Open-market sale | Common Stock, par value $0.10 per share | 10,543 footnote F1 | $96.07 | $1.01M | |
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| Kimberly A. Fields - Officer | Open-market sale | Common Stock, par value $0.10 per share | 21,153 footnote F1 | $85.87 | $1.82M | |
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| Tina Killough Busch - Officer | Tax withholding / forfeiture | Common Stock, par value $0.10 per share | 2,122 footnote F1 | $81.21 | $172K | |
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| Kimberly A. Fields - Officer | Open-market sale | Common Stock, par value $0.10 per share | 21,154 footnote F1 | $82.03 | $1.74M | |
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| Kimberly A. Fields - Officer | Open-market sale | Common Stock, par value $0.10 per share | 20,312 | $80.33 | $1.63M | |
| Kimberly A. Fields - Officer | Open-market sale | Common Stock, par value $0.10 per share | 15,941 | $77.52 | $1.24M | |
| Robert S. Wetherbee - Officer | Open-market sale | Common Stock, par value $0.10 per share | 40,777 | $74.48 | $3.04M | |
| Robert S. Wetherbee - Officer | Open-market sale | Common Stock, par value $0.10 per share | 7,220 | $75.30 | $544K | |
| Robert S. Wetherbee - Officer | Open-market sale | Common Stock, par value $0.10 per share | 2,003 | $76.10 | $152K | |
 David J. Morehouse | Open-market sale | Common Stock, par value $0.10 per share | 7,700 | $75.80 | $584K | |
| David J. Morehouse | Open-market sale | Common Stock, par value $0.10 per share | 200 | $76.30 | $15K | |
| Robert S. Wetherbee - Officer | Open-market sale | Common Stock, par value $0.10 per share | 13,105 | $82.89 | $1.09M | |
| Robert S. Wetherbee - Officer | Open-market sale | Common Stock, par value $0.10 per share | 25,531 | $84.30 | $2.15M | |
| Robert S. Wetherbee - Officer | Open-market sale | Common Stock, par value $0.10 per share | 11,364 | $84.30 | $958K | |
| Robert S. Wetherbee - Officer | Open-market sale | Common Stock, par value $0.10 per share | 50,000 | $81.64 | $4.08M | |
| Ruby Sharma | Grant or award | Common Stock, par value $0.10 per share | 1,655 | $0.00 | - | |
| David J. Morehouse | Grant or award | Common Stock, par value $0.10 per share | 3,311 | $0.00 | - | |
| Marianne Kah | Grant or award | Common Stock, par value $0.10 per share | 1,655 | $0.00 | - | |
 David P. Hess | Grant or award | Common Stock, par value $0.10 per share | 3,509 | $0.00 | - | |
Item 2.02, 9.01
Item 1.01, 2.03, 8.01, 9.01
Item 8.01, 9.01
Item 8.01, 9.01
Recent ATI Form 144 notices of proposed sale
3An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| Harris Timothy J | Officer | 9,000 | $1.73M | View on EDGAR | |
| Timothy J. Harris | Officer | 16,500 |
ATI insider trading FAQ
What is the latest insider trade for ATI?
ATI INC (ATI) had 8 insider filings in the last 90 days, with the most recent on 23 September 2026. The full record for ATI runs to 72 Form 4 filings, the earliest from 16 October 2024. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying ATI stock?
No insider purchases of ATI were filed in the last 90 days.
How many insiders are selling ATI stock?
12 insider sales of ATI were filed in the last 90 days, totaling $27.53M.
Where can I see ATI SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects ATI Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Materials companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Timothy J. Harris view on EDGAR
- - Timothy J. Harris view on EDGAR
- - Timothy J. Harris view on EDGAR
- - David J. Morehouse view on EDGAR
- - Timothy J. Harris view on EDGAR
- - Timothy J. Harris view on EDGAR
- - Kimberly A. Fields view on EDGAR
- - Kimberly A. Fields view on EDGAR
- - Kimberly A. Fields view on EDGAR
Related companies with recent insider activity
Learn more
- Insider selling: signal or noise?
- Why most insider sales are routine, and the few patterns worth a second look.
- Form 144 vs Form 4
- A Form 144 announces a planned sale; the Form 4 reports it after it happens.
- Insider activity in Materials
- Where ATI's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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