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ATI Insider Trading

Insider Ownership Percentage: 1.10%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $43,018,758.77

ATI Insider Trading History Chart

This chart shows the insider buying and selling history at ATI by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

ATI Share Price & Price History

Current Price: $141.86
Price Change: ▼ Price Decrease of -5.684 (-3.85%)
As of 03/20/2026 04:59 PM ET

This chart shows the closing price history over time for ATI up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

ATI Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
3/9/2026David J. MorehouseDirectorSell6,609$154.25$1,019,438.2538,168View SEC Filing Icon  
12/18/2025Robert S. WetherbeeChairmanSell53,862$109.48$5,896,811.76132,676View SEC Filing Icon  
11/25/2025Timothy J. HarrisVPSell10,542$97.88$1,031,850.9698,310View SEC Filing Icon  
11/21/2025Tina Killough BuschSVPSell2,598$93.26$242,289.4821,274View SEC Filing Icon  
11/18/2025Robert S. WetherbeeChairmanSell60,000$98.34$5,900,400.00246,538View SEC Filing Icon  
11/18/2025Timothy J. HarrisVPSell10,542$97.77$1,030,691.34108,852View SEC Filing Icon  
11/11/2025Timothy J. HarrisVPSell10,543$97.69$1,029,945.67119,394View SEC Filing Icon  
11/4/2025Timothy J. HarrisVPSell10,543$96.07$1,012,866.01129,937View SEC Filing Icon  
10/15/2025Kimberly A. FieldsCEOSell21,153$85.87$1,816,408.11202,668View SEC Filing Icon  
10/6/2025Kimberly A. FieldsCEOSell21,154$82.03$1,735,262.62223,821View SEC Filing Icon  
9/22/2025Kimberly A. FieldsCEOSell20,312$80.33$1,631,662.96244,975View SEC Filing Icon  
9/9/2025Kimberly A. FieldsCEOSell15,941$77.52$1,235,746.32265,287View SEC Filing Icon  
8/5/2025Robert S. WetherbeeChairmanSell50,000$74.66$3,733,000.00306,538View SEC Filing Icon  
8/4/2025David J. MorehouseDirectorSell7,900$75.81$598,899.0044,777View SEC Filing Icon  
6/12/2025Robert S. WetherbeeChairmanSell50,000$83.93$4,196,500.00356,538View SEC Filing Icon  
6/3/2025Robert S. WetherbeeChairmanSell50,000$81.64$4,082,000.00406,538View SEC Filing Icon  
5/20/2025Robert S. WetherbeeChairmanSell45,359$75.31$3,415,986.29461,179View SEC Filing Icon  
5/6/2025Robert S. WetherbeeChairmanSell50,000$68.18$3,409,000.00506,538View SEC Filing Icon  
2/6/2025Tina Killough BuschSVPSell9,900$66.41$657,459.0025,994View SEC Filing Icon  
12/4/2024Robert S. WetherbeeChairmanSell25,000$58.99$1,474,750.00436,443View SEC Filing Icon  
12/4/2024Tina Killough BuschSVPSell2,598$60.02$155,931.9621,553View SEC Filing Icon  
10/15/2024Robert S. WetherbeeChairmanSell25,000$62.23$1,555,750.00486,443View SEC Filing Icon  
9/16/2024Robert S. WetherbeeChairmanSell25,000$61.61$1,540,250.00511,443View SEC Filing Icon  
2/12/2024Timothy J. HarrisVPSell6,325$42.44$268,433.00109,331View SEC Filing Icon  
1/4/2024Elliot S. DavisInsiderSell1,789$43.06$77,034.34136,050View SEC Filing Icon  
9/8/2023James C. DiggsDirectorSell2,674$44.90$120,062.6046,591View SEC Filing Icon  
8/10/2023Timothy J. HarrisVPSell12,858$43.57$560,223.0676,992View SEC Filing Icon  
7/10/2023Elliot S. DavisInsiderSell7,039$45.00$316,755.00134,588View SEC Filing Icon  
6/29/2023Elliot S. DavisInsiderSell7,039$42.50$299,157.50141,627View SEC Filing Icon  
6/12/2023Elliot S. DavisInsiderSell7,039$40.00$281,560.00148,666View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for ATI (NYSE:ATI)

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at ATI by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

ATI Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
3/20/2026Hsbc Holdings PLC90,781$10.50M0.0%+233.0%0.066%Search for SEC Filing on Google Icon
3/17/2026Rockefeller Capital Management L.P.3,224$0.37M0.0%+42.8%0.002%Search for SEC Filing on Google Icon
3/13/2026World Investment Advisors2,376$0.27M0.0%N/A0.002%Search for SEC Filing on Google Icon
3/9/2026Corient Private Wealth LLC176,486$20.49M0.0%-49.9%0.129%Search for SEC Filing on Google Icon
3/6/2026Hsbc Holdings PLC90,781$10.50M0.0%+233.0%0.066%Search for SEC Filing on Google Icon
3/5/2026Mengis Capital Management Inc.73,267$8.41M1.5%-10.4%0.054%Search for SEC Filing on Google Icon
2/23/2026Virtu Financial LLC2,754$0.32M0.0%N/A0.002%Search for SEC Filing on Google Icon
2/20/2026Kovitz Investment Group Partners LLC19,952$2.29M0.1%-31.2%0.015%Search for SEC Filing on Google Icon
2/19/2026Compound Planning Inc.2,058$0.24M0.0%N/A0.002%Search for SEC Filing on Google Icon
2/19/2026Invesco Ltd.3,384,924$388.45M0.1%+7.4%2.491%Search for SEC Filing on Google Icon
2/19/2026Corient Private Wealth LLC171,869$19.96M0.0%-51.2%0.127%Search for SEC Filing on Google Icon
2/18/2026Mercer Global Advisors Inc. ADV25,726$2.95M0.0%+86.5%0.019%Search for SEC Filing on Google Icon
2/18/2026Vident Advisory LLC2,945$0.34M0.0%-13.2%0.002%Search for SEC Filing on Google Icon
2/18/2026First Citizens Bank & Trust Co.6,721$0.77M0.0%-4.8%0.005%Search for SEC Filing on Google Icon
2/18/2026State of Tennessee Department of Treasury60,515$7.28M0.0%-4.1%0.045%Search for SEC Filing on Google Icon
2/18/2026Mackenzie Financial Corp18,849$2.19M0.0%+93.1%0.014%Search for SEC Filing on Google Icon
2/18/2026Empowered Funds LLC13,834$1.59M0.0%N/A0.010%Search for SEC Filing on Google Icon
2/18/2026XTX Topco Ltd3,037$0.35M0.0%N/A0.002%Search for SEC Filing on Google Icon
2/18/2026Utah Retirement Systems7,146$0.82M0.0%-3.3%0.005%Search for SEC Filing on Google Icon
2/18/2026Voloridge Investment Management LLC175,732$20.17M0.1%-69.7%0.129%Search for SEC Filing on Google Icon
2/18/2026Wellington Management Group LLP377,358$43.31M0.0%-17.5%0.278%Search for SEC Filing on Google Icon
2/18/2026SummitTX Capital L.P.68,660$7.88M0.2%N/A0.051%Search for SEC Filing on Google Icon
2/18/2026Toronto Dominion Bank17,780$2.04M0.0%N/A0.013%Search for SEC Filing on Google Icon
2/18/2026Susquehanna Fundamental Investments LLC82,786$9.50M0.3%+13.9%0.061%Search for SEC Filing on Google Icon
2/18/2026Polymer Capital Management US LLC9,437$1.08M0.1%+256.7%0.007%Search for SEC Filing on Google Icon
2/18/2026Numerai GP LLC8,426$0.97M0.1%N/A0.006%Search for SEC Filing on Google Icon
2/18/2026Oxford Asset Management LLP1,794$0.21M0.1%N/A0.001%Search for SEC Filing on Google Icon
2/18/2026Old West Investment Management LLC12,555$1.44M0.3%N/A0.009%Search for SEC Filing on Google Icon
2/18/2026Man Group plc131,661$15.11M0.0%+361.6%0.097%Search for SEC Filing on Google Icon
2/18/2026Inspire Investing LLC11,562$1.33M0.1%N/A0.009%Search for SEC Filing on Google Icon
2/18/2026Janus Henderson Group PLC60,508$6.95M0.0%+0.3%0.045%Search for SEC Filing on Google Icon
2/18/2026Gotham Asset Management LLC290,996$33.40M0.1%+47.3%0.214%Search for SEC Filing on Google Icon
2/18/2026Engineers Gate Manager LP37,426$4.30M0.1%+251.6%0.028%Search for SEC Filing on Google Icon
2/18/2026Expect Equity LLC28,410$3.26M3.2%+85.1%0.021%Search for SEC Filing on Google Icon
2/18/2026Concentric Capital Strategies LP161,956$18.59M0.9%N/A0.119%Search for SEC Filing on Google Icon
2/18/2026Balyasny Asset Management L.P.389,986$44.76M0.1%N/A0.287%Search for SEC Filing on Google Icon
2/18/2026Banco Bilbao Vizcaya Argentaria S.A.3,593$0.42M0.0%-17.4%0.003%Search for SEC Filing on Google Icon
2/18/2026Boothbay Fund Management LLC33,729$3.87M0.1%N/A0.025%Search for SEC Filing on Google Icon
2/18/2026Aristeia Capital L.L.C.6,529$0.75M0.0%+28.5%0.005%Search for SEC Filing on Google Icon
2/18/2026American Trust3,816$0.44M0.0%-29.3%0.003%Search for SEC Filing on Google Icon
2/17/2026Guggenheim Capital LLC86,405$9.92M0.1%-3.7%0.064%Search for SEC Filing on Google Icon
2/17/2026FACT Capital LP103,102$11.83M6.4%+1.7%0.075%Search for SEC Filing on Google Icon
2/17/2026Hawk Ridge Capital Management LP209,500$24.04M1.1%-23.7%0.154%Search for SEC Filing on Google Icon
2/17/2026J. Goldman & Co LP114,246$13.11M0.3%-22.5%0.084%Search for SEC Filing on Google Icon
2/17/2026AQR Capital Management LLC1,019,840$117.04M0.1%+684.9%0.751%Search for SEC Filing on Google Icon
2/17/2026Abel Hall LLC2,265$0.26M0.1%N/A0.002%Search for SEC Filing on Google Icon
2/17/2026Cetera Investment Advisers15,183$1.74M0.0%+124.3%0.011%Search for SEC Filing on Google Icon
2/17/2026Jain Global LLC665,276$76.35M0.4%+3,017.7%0.490%Search for SEC Filing on Google Icon
2/17/2026Sagefield Capital LP51,455$5.91M0.5%-26.0%0.038%Search for SEC Filing on Google Icon
2/17/2026Cartenna Capital LP260,000$29.84M1.0%N/A0.191%Search for SEC Filing on Google Icon
2/17/2026Trexquant Investment LP14,551$1.67M0.0%N/A0.011%Search for SEC Filing on Google Icon
2/17/2026Amundi29,850$3.43M0.0%-85.6%0.022%Search for SEC Filing on Google Icon
2/17/2026Jump Financial LLC10,104$1.16M0.0%N/A0.007%Search for SEC Filing on Google Icon
2/17/2026Sciencast Management LP8,644$0.99M0.1%-24.6%0.006%Search for SEC Filing on Google Icon
2/17/2026Vinva Investment Management Ltd1,458$0.17M0.0%N/A0.001%Search for SEC Filing on Google Icon
2/17/2026Price T Rowe Associates Inc. MD498,177$57.17M0.0%-53.6%0.367%Search for SEC Filing on Google Icon
2/17/2026Dendur Capital LP2,039,291$234.03M23.3%-24.2%1.501%Search for SEC Filing on Google Icon
2/17/2026Weiss Asset Management LP119,031$13.66M0.2%+1,062.3%0.088%Search for SEC Filing on Google Icon
2/17/2026Quantitative Investment Management LLC5,731$0.66M0.1%N/A0.004%Search for SEC Filing on Google Icon
2/17/2026Osaic Holdings Inc.20,907$2.40M0.0%+1.5%0.015%Search for SEC Filing on Google Icon
2/17/2026Advisory Services Network LLC16,941$1.94M0.0%-4.5%0.012%Search for SEC Filing on Google Icon
2/17/2026Adage Capital Partners GP L.L.C.10,468$1.20M0.0%-30.2%0.008%Search for SEC Filing on Google Icon
2/17/2026Tower Research Capital LLC TRC 7,980$0.92M0.0%+75.4%0.006%Search for SEC Filing on Google Icon
2/17/2026Public Employees Retirement System of Ohio41,383$4.75M0.0%-7.1%0.030%Search for SEC Filing on Google Icon
2/17/2026Candelo Capital Management LP63,396$7.28M6.5%+4.1%0.047%Search for SEC Filing on Google Icon
2/17/2026California State Teachers Retirement System130,422$14.97M0.0%-2.7%0.096%Search for SEC Filing on Google Icon
2/17/2026Kemnay Advisory Services Inc.1,120$0.13M0.0%N/A0.001%Search for SEC Filing on Google Icon
2/17/2026State of Wisconsin Investment Board228,775$26.25M0.1%-12.8%0.168%Search for SEC Filing on Google Icon
2/17/2026Captrust Financial Advisors7,576$0.87M0.0%N/A0.006%Search for SEC Filing on Google Icon
2/17/2026&PARTNERS16,107$1.85M0.0%+65.4%0.012%Search for SEC Filing on Google Icon
2/17/2026ExodusPoint Capital Management LP17,634$2.02M0.0%N/A0.013%Search for SEC Filing on Google Icon
2/17/2026Royal Bank of Canada76,236$8.75M0.0%-94.1%0.056%Search for SEC Filing on Google Icon
2/17/2026Blair William & Co. IL44,102$5.06M0.0%+1,096.1%0.032%Search for SEC Filing on Google Icon
2/17/2026Bank of Marin7,423$0.85M0.6%+8.0%0.005%Search for SEC Filing on Google Icon
2/17/2026Aster Capital Management DIFC Ltd2,065$0.24M0.1%N/A0.002%Search for SEC Filing on Google Icon
2/17/2026University of Texas Texas AM Investment Management Co.5,063$0.58M0.1%N/A0.004%Search for SEC Filing on Google Icon
2/16/2026Oarsman Capital Inc.3,370$0.39M0.1%-5.6%0.002%Search for SEC Filing on Google Icon
2/16/2026Vanguard Personalized Indexing Management LLC16,166$1.86M0.0%+20.1%0.012%Search for SEC Filing on Google Icon
2/16/2026Verition Fund Management LLC2,317$0.27M0.0%-94.9%0.002%Search for SEC Filing on Google Icon
2/16/2026Panagora Asset Management Inc.25,436$2.92M0.0%+325.5%0.019%Search for SEC Filing on Google Icon
2/16/2026S Squared Technology LLC80,000$9.18M3.6%N/A0.059%Search for SEC Filing on Google Icon
2/16/2026MML Investors Services LLC7,189$0.83M0.0%+3.8%0.005%Search for SEC Filing on Google Icon
2/16/2026Mariner LLC54,091$6.21M0.0%+726.8%0.040%Search for SEC Filing on Google Icon
2/16/2026Mountaineer Partners Management LLC128,909$14.79M8.3%-10.5%0.095%Search for SEC Filing on Google Icon
2/16/2026Healthcare of Ontario Pension Plan Trust Fund53,462$6.14M0.0%+46.2%0.039%Search for SEC Filing on Google Icon
2/16/2026Dymon Asia Capital Singapore PTE. LTD.28,400$3.26M0.3%-33.0%0.021%Search for SEC Filing on Google Icon
2/16/2026Dockside LLC15,844$1.82M0.5%N/A0.012%Search for SEC Filing on Google Icon
2/16/2026Epoch Investment Partners Inc.90,299$10.36M0.1%+132.3%0.066%Search for SEC Filing on Google Icon
2/16/2026Barclays PLC139,544$16.01M0.0%-56.4%0.103%Search for SEC Filing on Google Icon
2/16/2026Arrowstreet Capital Limited Partnership363,271$41.69M0.0%N/A0.267%Search for SEC Filing on Google Icon
2/13/2026Arete Wealth Advisors LLC13,236$1.52M0.1%N/A0.010%Search for SEC Filing on Google Icon
2/13/2026Kestra Advisory Services LLC2,192$0.25M0.0%N/A0.002%Search for SEC Filing on Google Icon
2/13/2026Marshall Wace LLP628,285$72.10M0.1%+22.2%0.462%Search for SEC Filing on Google Icon
2/13/2026The Manufacturers Life Insurance Company 93,735$10.76M0.0%-5.5%0.069%Search for SEC Filing on Google Icon
2/13/2026CANADA LIFE ASSURANCE Co79,476$9.12M0.0%-24.7%0.058%Search for SEC Filing on Google Icon
2/13/2026Segall Bryant & Hamill LLC321,693$36.92M0.5%-15.7%0.237%Search for SEC Filing on Google Icon
2/13/2026UMB Bank n.a.1,974$0.23M0.0%+10.2%0.001%Search for SEC Filing on Google Icon
2/13/2026Stifel Financial Corp97,630$11.20M0.0%+9.1%0.072%Search for SEC Filing on Google Icon
2/13/2026Hudson Bay Capital Management LP91,896$10.55M0.0%-40.6%0.068%Search for SEC Filing on Google Icon
2/13/2026Neuberger Berman Group LLC822,714$94.42M0.1%-13.3%0.606%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
ATI logo
ATI Inc. produces and sells specialty materials and complex components worldwide. It operates in two segments: High Performance Materials & Components (HPMC) and Advanced Alloys & Solutions (AA&S). The HPMC segment produces various materials, including titanium and titanium-based alloys, nickel- and cobalt-based alloys and superalloys, metallic powder alloys, advanced powder alloys and other specialty materials, in long product forms, such as ingot, billet, bar, rod, wire, shapes and rectangles, and seamless tubes, as well as precision forgings, components, and machined parts. The AA&S segment produces zirconium and related alloys, including hafnium and niobium, nickel-based alloys, titanium and titanium-based alloys, and specialty alloys in a variety of forms, such as plate, sheet, and precision rolled strip products. It also provides hot-rolling conversion services, including carbon steel products. ATI Inc. serves to aerospace and defense, energy, automotive, construction and mining, food equipment and appliances, and medical markets. The company was formerly known as Allegheny Technologies Incorporated. ATI Inc. was incorporated in 1996 and is headquartered in Dallas, Texas.
Read More on ATI

Today's Range

Now: $141.86
Low: $139.83
High: $148.07

50 Day Range

MA: $140.57
Low: $120.21
High: $166.95

52 Week Range

Now: $141.86
Low: $39.23
High: $168.14

Volume

3,399,233 shs

Average Volume

2,215,564 shs

Market Capitalization

$19.43 billion

P/E Ratio

49.95

Dividend Yield

N/A

Beta

0.95

Who are the company insiders with the largest holdings of ATI?

ATI's top insider investors include:
  1. Robert S Wetherbee (Chairman)
  2. Kimberly A Fields (CEO)
  3. Timothy J Harris (VP)
  4. David J Morehouse (Director)
  5. Tina Killough Busch (SVP)
Learn More about top insider investors at ATI.

Who are the major institutional investors of ATI?

ATI's top institutional investors include:
  1. Capital International Investors — 12.58%
  2. Vanguard Group Inc. — 9.37%
  3. Capital World Investors — 5.41%
  4. State Street Corp — 4.12%
  5. Capital Research Global Investors — 2.66%
  6. Invesco Ltd. — 2.49%
Learn More about top institutional investors of ATI stock.

Which major investors are selling ATI stock?

Within the previous quarter, ATI stock was sold by these institutional investors:
  1. Royal Bank of Canada
  2. Channing Capital Management LLC
  3. Dendur Capital LP
  4. Price T Rowe Associates Inc. MD
  5. Capital World Investors
  6. State Street Corp
  7. Voloridge Investment Management LLC
  8. Vanguard Group Inc.
In the previous year, company insiders that have sold ATI company stock include:
  1. Robert S Wetherbee (Chairman)
  2. Kimberly A Fields (CEO)
  3. Timothy J Harris (VP)
  4. David J Morehouse (Director)
  5. Tina Killough Busch (SVP)
Learn More investors selling ATI stock.

Which major investors are buying ATI stock?

During the previous quarter, ATI stock was bought by institutional investors including:
  1. Norges Bank
  2. AQR Capital Management LLC
  3. UBS Group AG
  4. Jain Global LLC
  5. Balyasny Asset Management L.P.
  6. Capital Research Global Investors
  7. Arrowstreet Capital Limited Partnership
  8. MUFG Securities EMEA plc