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ATI Insider Trading

Insider Ownership Percentage: 0.98%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $45,978,158.77

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: $154.30
Price Change: ▼ Price Decrease of -8.267 (-5.09%)
As of 05/15/2026 03:59 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
5/11/2026Kimberly A. FieldsCEOSell40,000$159.21$6,368,400.00277,763View SEC Filing Icon  
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
5/16/2026Hawk Ridge Capital Management LP185,600$27M1.0%-11.4%0.136%Search for SEC Filing on Google Icon
5/16/2026Quantinno Capital Management LP40,458$5.89M0.0%+22.7%0.030%Search for SEC Filing on Google Icon
5/16/2026Lazard Asset Management LLC24,105$3.51M0.0%+281.4%0.018%Search for SEC Filing on Google Icon
5/15/2026Gateway Wealth Partners LLC3,439$0.50M0.0%N/A0.003%Search for SEC Filing on Google Icon
5/15/2026Waverly Advisors LLC46,082$6.70M0.1%-23.0%0.034%Search for SEC Filing on Google Icon
5/15/2026Epoch Investment Partners Inc.85,601$12.45M0.1%-5.2%0.063%Search for SEC Filing on Google Icon
5/15/2026Entropy Technologies LP19,026$2.77M0.1%N/A0.014%Search for SEC Filing on Google Icon
5/14/2026Healthcare of Ontario Pension Plan Trust Fund87,042$12.66M0.0%+62.8%0.064%Search for SEC Filing on Google Icon
5/14/2026Gabelli Funds LLC15,316$2.23M0.0%+11.8%0.011%Search for SEC Filing on Google Icon
5/14/2026Gamco Investors INC. ET AL361,500$52.58M0.5%-5.6%0.265%Search for SEC Filing on Google Icon
5/14/2026Public Employees Retirement System of Ohio39,930$5.81M0.0%-3.5%0.029%Search for SEC Filing on Google Icon
5/14/2026Compound Planning Inc.2,378$0.35M0.0%+15.5%0.002%Search for SEC Filing on Google Icon
5/14/2026Arrowstreet Capital Limited Partnership1,203,726$175.09M0.1%+231.4%0.882%Search for SEC Filing on Google Icon
5/14/2026Inceptionr LLC1,546$0.23M0.1%-40.9%0.001%Search for SEC Filing on Google Icon
5/14/2026Bowen Hanes & Co. Inc.1,043,105$151.73M3.7%-11.4%0.764%Search for SEC Filing on Google Icon
5/14/2026Bank of Nova Scotia467,149$67.95M0.1%+92.9%0.342%Search for SEC Filing on Google Icon
5/14/2026Sei Investments Co.90,045$13.10M0.0%-24.7%0.066%Search for SEC Filing on Google Icon
5/14/2026Lido Advisors LLC5,110$0.74M0.0%+29.0%0.004%Search for SEC Filing on Google Icon
5/14/2026State of Wyoming2,882$0.42M0.0%-44.8%0.002%Search for SEC Filing on Google Icon
5/13/2026Cetera Investment Advisers26,675$3.88M0.0%+75.7%0.020%Search for SEC Filing on Google Icon
5/13/2026Signature Equity Partners LLC182$26K0.0%+208.5%0.000%Search for SEC Filing on Google Icon
5/13/2026NewEdge Wealth LLC2,857$0.42M0.0%+41.2%0.002%Search for SEC Filing on Google Icon
5/13/2026First Citizens Bank & Trust Co.6,630$0.96M0.0%-1.4%0.005%Search for SEC Filing on Google Icon
5/13/2026First Trust Advisors LP93,147$13.55M0.0%+14.6%0.068%Search for SEC Filing on Google Icon
5/8/2026PNC Financial Services Group Inc.831,736$120.98M0.1%+1,714.0%0.609%Search for SEC Filing on Google Icon
5/8/2026HORAN Wealth LLC1,400$0.20M0.0%N/A0.001%Search for SEC Filing on Google Icon
5/8/2026Wilkerson Advisory Group LLC1,474$0.21M0.1%N/A0.001%Search for SEC Filing on Google Icon
5/7/2026Basepoint Wealth LLC5,414$0.79M0.5%-3.5%0.004%Search for SEC Filing on Google Icon
5/7/2026Hollencrest Capital Management452$66K0.0%+283.1%0.000%Search for SEC Filing on Google Icon
5/7/2026Meeder Asset Management Inc.2,754$0.40M0.0%+2.8%0.002%Search for SEC Filing on Google Icon
5/7/2026Dimensional Fund Advisors LP1,366,804$198.72M0.0%-35.7%1.002%Search for SEC Filing on Google Icon
5/7/2026Little House Capital LLC14,447$2.10M0.5%N/A0.011%Search for SEC Filing on Google Icon
5/7/2026Swiss National Bank268,800$39.10M0.0%-1.1%0.197%Search for SEC Filing on Google Icon
5/7/2026Precision Wealth Strategies LLC6,939$1.01M0.3%N/A0.005%Search for SEC Filing on Google Icon
5/6/2026Freemont Management S.A.27,300$3.97M0.6%+37.2%0.020%Search for SEC Filing on Google Icon
5/6/2026California Public Employees Retirement System253,797$36.92M0.0%-0.4%0.186%Search for SEC Filing on Google Icon
5/6/2026Graphene Investments SAS19,900$2.90M1.9%-29.9%0.015%Search for SEC Filing on Google Icon
5/6/2026Bessemer Group Inc.2,106$0.31M0.0%+10.3%0.002%Search for SEC Filing on Google Icon
5/6/2026Allspring Global Investments Holdings LLC520,246$78.69M0.1%-13.8%0.381%Search for SEC Filing on Google Icon
5/5/2026D.A. Davidson & CO.9,355$1.36M0.0%+29.9%0.007%Search for SEC Filing on Google Icon
5/5/2026Bank of New York Mellon Corp869,184$126.43M0.0%-4.8%0.637%Search for SEC Filing on Google Icon
5/5/2026Illinois Municipal Retirement Fund7,601$1.11M0.0%N/A0.006%Search for SEC Filing on Google Icon
5/5/2026Sanctuary Advisors LLC115,616$16.82M0.1%-14.5%0.085%Search for SEC Filing on Google Icon
5/5/2026Sigma Planning Corp10,517$1.53M0.0%N/A0.008%Search for SEC Filing on Google Icon
5/5/2026Avantax Planning Partners Inc.1,678$0.24M0.0%N/A0.001%Search for SEC Filing on Google Icon
5/4/2026Emerald Mutual Fund Advisers Trust93,847$13.65M0.7%-48.9%0.069%Search for SEC Filing on Google Icon
5/4/2026Emerald Advisers LLC181,485$26.40M0.8%-41.0%0.133%Search for SEC Filing on Google Icon
5/4/2026Archer Investment Corp1,510$0.22M0.0%N/A0.001%Search for SEC Filing on Google Icon
5/4/2026State of Michigan Retirement System32,700$4.76M0.0%+1.9%0.024%Search for SEC Filing on Google Icon
5/4/2026Principal Financial Group Inc.303,158$44.10M0.0%+3.8%0.222%Search for SEC Filing on Google Icon
5/4/2026Chicago Partners Investment Group LLC2,034$0.31M0.0%N/A0.001%Search for SEC Filing on Google Icon
5/4/2026Y.D. More Investments Ltd4,725$0.69M0.0%N/A0.003%Search for SEC Filing on Google Icon
5/2/2026Carnegie Investment Counsel2,136$0.31M0.0%-60.7%0.002%Search for SEC Filing on Google Icon
5/1/2026Fifth Third Bancorp48,899$7.11M0.0%+3,506.1%0.036%Search for SEC Filing on Google Icon
5/1/2026American Trust2,238$0.33M0.0%-41.4%0.002%Search for SEC Filing on Google Icon
5/1/2026Sequoia Financial Advisors LLC5,728$0.83M0.0%-17.9%0.004%Search for SEC Filing on Google Icon
4/30/2026Hsbc Holdings PLC28,788$4.16M0.0%-68.3%0.021%Search for SEC Filing on Google Icon
4/30/2026Summit Securities Group LLC413$60K0.0%N/A0.000%Search for SEC Filing on Google Icon
4/30/2026Kestra Advisory Services LLC2,822$0.41M0.0%+28.7%0.002%Search for SEC Filing on Google Icon
4/30/2026Oregon Public Employees Retirement Fund27,835$4.05M0.1%+2.7%0.020%Search for SEC Filing on Google Icon
4/29/2026Kiley Juergens Wealth Management LLC1,998$0.29M0.1%N/A0.001%Search for SEC Filing on Google Icon
4/28/2026Stephens Inc. AR2,267$0.33M0.0%N/A0.002%Search for SEC Filing on Google Icon
4/28/2026Praxis Investment Management Inc.4,865$0.71M0.0%-40.1%0.004%Search for SEC Filing on Google Icon
4/27/2026HB Wealth Management LLC4,118$0.60M0.0%+27.8%0.003%Search for SEC Filing on Google Icon
4/27/2026World Investment Advisors3,783$0.55M0.0%+59.2%0.003%Search for SEC Filing on Google Icon
4/27/2026New York State Teachers Retirement System134,642$19.59M0.0%-9.0%0.099%Search for SEC Filing on Google Icon
4/27/2026Private Advisor Group LLC2,422$0.35M0.0%N/A0.002%Search for SEC Filing on Google Icon
4/27/2026Y Intercept Hong Kong Ltd31,620$4.60M0.1%N/A0.023%Search for SEC Filing on Google Icon
4/25/2026Keybank National Association OH5,825$0.85M0.0%-36.1%0.004%Search for SEC Filing on Google Icon
4/24/2026Root Financial Partners LLC862$0.13M0.0%+234.1%0.001%Search for SEC Filing on Google Icon
4/24/2026Capital Asset Advisory Services LLC1,475$0.22M0.0%N/A0.001%Search for SEC Filing on Google Icon
4/23/2026Inspire Investing LLC11,098$1.61M0.1%-4.0%0.008%Search for SEC Filing on Google Icon
4/23/2026Networth Advisors LLC1,464$0.21M0.2%+29.4%0.001%Search for SEC Filing on Google Icon
4/23/2026Apollon Wealth Management LLC3,635$0.53M0.0%+15.9%0.003%Search for SEC Filing on Google Icon
4/22/2026Janney Montgomery Scott LLC33,437$4.86M0.0%-14.3%0.025%Search for SEC Filing on Google Icon
4/22/20261492 Capital Management LLC41,865$6.09M2.3%-1.0%0.031%Search for SEC Filing on Google Icon
4/22/2026Pictet Asset Management Holding SA22,141$3.22M0.0%+6.7%0.016%Search for SEC Filing on Google Icon
4/21/2026SmartHarvest Portfolios LLC1,712$0.25M0.1%N/A0.001%Search for SEC Filing on Google Icon
4/21/2026Louisiana State Employees Retirement System39,400$5.73M0.1%N/A0.029%Search for SEC Filing on Google Icon
4/21/2026Fairvoy Private Wealth LLC6,043$0.88M0.2%N/A0.004%Search for SEC Filing on Google Icon
4/20/2026Kestra Private Wealth Services LLC13,011$1.89M0.0%+33.4%0.010%Search for SEC Filing on Google Icon
4/20/2026Friedenthal Financial6,741$0.98M0.5%N/A0.005%Search for SEC Filing on Google Icon
4/20/2026Trust Co. of Oklahoma3,011$0.44M0.1%N/A0.002%Search for SEC Filing on Google Icon
4/20/2026Fifth Third Wealth Advisors LLC4,941$0.72M0.0%+24.3%0.004%Search for SEC Filing on Google Icon
4/20/2026OP Asset Management Ltd22,985$3.34M0.0%N/A0.017%Search for SEC Filing on Google Icon
4/20/2026Assenagon Asset Management S.A.584,030$84.95M0.1%+2,162.1%0.428%Search for SEC Filing on Google Icon
4/18/2026Mainstream Capital Management LLC1,700$0.25M0.2%N/A0.001%Search for SEC Filing on Google Icon
4/17/2026Marathon Mission Inc.1,488$0.22M0.1%N/A0.001%Search for SEC Filing on Google Icon
4/16/2026SG Americas Securities LLC1,075,368$156.42M0.2%+1,471.8%0.788%Search for SEC Filing on Google Icon
4/16/2026Evolve Private Wealth LLC1,481$0.22M0.0%N/A0.001%Search for SEC Filing on Google Icon
4/16/2026Diversified Trust Co1,410$0.21M0.0%N/A0.001%Search for SEC Filing on Google Icon
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
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: $154.30
Low: $154.02
High: $160.69

50 Day Range

MA: $153.39
Low: $135.76
High: $165.17

52 Week Range

Now: $154.30
Low: $70.42
High: $171.11

Volume

1,369,850 shs

Average Volume

1,891,270 shs

Market Capitalization

$21.06 billion

P/E Ratio

51.09

Dividend Yield

N/A

Beta

0.94

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

ATI's top insider investors include:
  1. Robert S Wetherbee (Chairman)
  2. Richard J Harshman (CEO)
  3. Robert S Wetherbee (CEO)
  4. Kimberly A Fields (CEO)
  5. Elliot S Davis (SVP)
  6. Elliot S Davis (Insider)
  7. Kevin B Kramer (CMO)
  8. Timothy J Harris (VP)
  9. Robert S Wetherbee (Insider)
  10. Karl D Schwartz (CAO)
Learn More about top insider investors at ATI.

Who are the major institutional investors of ATI?

ATI's top institutional investors include:
  1. Dimensional Fund Advisors LP — 1.00%
  2. Arrowstreet Capital Limited Partnership — 0.88%
  3. SG Americas Securities LLC — 0.79%
  4. Bowen Hanes & Co. Inc. — 0.76%
  5. Bank of New York Mellon Corp — 0.64%
  6. PNC Financial Services Group Inc. — 0.61%
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. Dimensional Fund Advisors LP
  2. Bowen Hanes & Co. Inc.
  3. Emerald Advisers LLC
  4. Emerald Mutual Fund Advisers Trust
  5. Allspring Global Investments Holdings LLC
  6. Hsbc Holdings PLC
  7. Bank of New York Mellon Corp
  8. Sei Investments Co.
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. SG Americas Securities LLC
  2. Arrowstreet Capital Limited Partnership
  3. PNC Financial Services Group Inc.
  4. Assenagon Asset Management S.A.
  5. Bank of Nova Scotia
  6. Fifth Third Bancorp
  7. Louisiana State Employees Retirement System
  8. Healthcare of Ontario Pension Plan Trust Fund

ATI Active Insiders

Kimberly A Fields
Kimberly A Fields
President and Chief Executive Officer
1 recent trades
Donald P Newman
Donald P Newman (Age 61)
CFO
Robert S Wetherbee
Robert S Wetherbee (Age 67)
Executive Chairman
2 recent trades
Karl D Schwartz
Karl D Schwartz (Age 63)
CAO
James C Diggs
Director
David J Morehouse
David J Morehouse
Director
1 recent trades
Tina Killough Busch
Tina Killough Busch
SVP and Chief Human Resources Officer
1 recent trades
Elliot S Davis (Age 65)
SVP
Timothy J Harris
Timothy J Harris (Age 50)
VP
2 recent trades
Kevin B. Kramer
Kevin B. Kramer (Age 65)
CMO