ATI Insider Trading

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Insider Trading History
Frequently Asked Questions
About

Insider Ownership Percentage: 1.10%

Insider Buying (Last 12 Months): $0.00

Insider Selling (Last 12 Months): $36,759,967.76

ATI Insider Trading History Chart

ATI Share Price & Price History

^$100.38

▲ +2.008 (2.04%)

As of 12/4/2025 04:59 PM ET

Days: 30 | 90 | 365

ATI Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
11/25/2025	Timothy J. Harris	VP	Sell	10,542	$97.88	$1,031,850.96	98,310
11/21/2025	Tina Killough Busch	SVP	Sell	2,598	$93.26	$242,289.48	21,274
11/18/2025	Robert S. Wetherbee	Chairman	Sell	60,000	$98.34	$5,900,400.00	246,538
11/18/2025	Timothy J. Harris	VP	Sell	10,542	$97.77	$1,030,691.34	108,852
11/11/2025	Timothy J. Harris	VP	Sell	10,543	$97.69	$1,029,945.67	119,394
11/4/2025	Timothy J. Harris	VP	Sell	10,543	$96.07	$1,012,866.01	129,937
10/15/2025	Kimberly A. Fields	CEO	Sell	21,153	$85.87	$1,816,408.11	202,668
10/6/2025	Kimberly A. Fields	CEO	Sell	21,154	$82.03	$1,735,262.62	223,821
9/22/2025	Kimberly A. Fields	CEO	Sell	20,312	$80.33	$1,631,662.96	244,975
9/9/2025	Kimberly A. Fields	CEO	Sell	15,941	$77.52	$1,235,746.32	265,287
8/5/2025	Robert S. Wetherbee	Chairman	Sell	50,000	$74.66	$3,733,000.00	306,538
8/4/2025	David J. Morehouse	Director	Sell	7,900	$75.81	$598,899.00	44,777
6/12/2025	Robert S. Wetherbee	Chairman	Sell	50,000	$83.93	$4,196,500.00	356,538
6/3/2025	Robert S. Wetherbee	Chairman	Sell	50,000	$81.64	$4,082,000.00	406,538
5/20/2025	Robert S. Wetherbee	Chairman	Sell	45,359	$75.31	$3,415,986.29	461,179
5/6/2025	Robert S. Wetherbee	Chairman	Sell	50,000	$68.18	$3,409,000.00	506,538
2/6/2025	Tina Killough Busch	SVP	Sell	9,900	$66.41	$657,459.00	25,994
12/4/2024	Robert S. Wetherbee	Chairman	Sell	25,000	$58.99	$1,474,750.00	436,443
12/4/2024	Tina Killough Busch	SVP	Sell	2,598	$60.02	$155,931.96	21,553
10/15/2024	Robert S. Wetherbee	Chairman	Sell	25,000	$62.23	$1,555,750.00	486,443
9/16/2024	Robert S. Wetherbee	Chairman	Sell	25,000	$61.61	$1,540,250.00	511,443
2/12/2024	Timothy J. Harris	VP	Sell	6,325	$42.44	$268,433.00	109,331
1/4/2024	Elliot S. Davis	Insider	Sell	1,789	$43.06	$77,034.34	136,050
9/8/2023	James C. Diggs	Director	Sell	2,674	$44.90	$120,062.60	46,591
8/10/2023	Timothy J. Harris	VP	Sell	12,858	$43.57	$560,223.06	76,992
7/10/2023	Elliot S. Davis	Insider	Sell	7,039	$45.00	$316,755.00	134,588
6/29/2023	Elliot S. Davis	Insider	Sell	7,039	$42.50	$299,157.50	141,627
6/12/2023	Elliot S. Davis	Insider	Sell	7,039	$40.00	$281,560.00	148,666
2/8/2023	Elliot S. Davis	Insider	Sell	9,627	$39.07	$376,126.89	151,642
12/6/2022	Elliot S. Davis	Insider	Sell	28,572	$30.68	$876,588.96	160,350

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

Institutional Buying and Selling by Quarter

ATI Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
12/2/2025	Allworth Financial LP	534	$43K	0.0%	+50.8%	0.000%
12/2/2025	Swiss Life Asset Management Ltd	6,439	$0.52M	0.0%	+76.4%	0.005%
11/19/2025	Coldstream Capital Management Inc.	4,120	$0.34M	0.0%	N/A	0.003%
11/19/2025	Danske Bank A S	1,500	$0.12M	0.0%	N/A	0.001%
11/17/2025	Keystone Financial Group	2,700	$0.22M	0.0%	-5.3%	0.002%
11/17/2025	Kestra Private Wealth Services LLC	9,709	$0.79M	0.0%	+81.0%	0.007%
11/17/2025	CANADA LIFE ASSURANCE Co	105,554	$8.36M	0.0%	+31.5%	0.078%
11/17/2025	Woodline Partners LP	747,127	$60.77M	0.3%	-10.9%	0.550%
11/17/2025	American Trust	5,400	$0.44M	0.0%	-18.6%	0.004%
11/17/2025	Voloridge Investment Management LLC	580,467	$47.22M	0.2%	-29.4%	0.427%
11/17/2025	Verition Fund Management LLC	45,499	$3.70M	0.0%	+14.1%	0.033%
11/17/2025	State Street Corp	6,042,244	$491.48M	0.0%	+7.4%	4.447%
11/17/2025	Susquehanna Fundamental Investments LLC	72,711	$5.91M	0.2%	N/A	0.054%
11/17/2025	Sapience Investments LLC	8,290	$0.67M	2.6%	-75.6%	0.006%
11/17/2025	Polymer Capital Management US LLC	2,646	$0.22M	0.0%	N/A	0.002%
11/17/2025	Quarry LP	472	$38K	0.0%	-74.8%	0.000%
11/17/2025	Prelude Capital Management LLC	2,689	$0.22M	0.0%	N/A	0.002%
11/17/2025	Public Employees Retirement System of Ohio	44,552	$3.62M	0.0%	+0.8%	0.033%
11/17/2025	Nomura Holdings Inc.	14,452	$1.18M	0.0%	N/A	0.011%
11/17/2025	Northwestern Mutual Wealth Management Co.	23,274	$1.89M	0.0%	+32.4%	0.017%
11/17/2025	Northern Trust Corp	1,226,747	$99.78M	0.0%	-2.1%	0.903%
11/17/2025	Mariner LLC	6,542	$0.53M	0.0%	-38.8%	0.005%
11/17/2025	Mountaineer Partners Management LLC	144,020	$11.72M	6.8%	+17.1%	0.106%
11/17/2025	Mercer Global Advisors Inc. ADV	13,793	$1.12M	0.0%	+49.7%	0.010%
11/17/2025	Millennium Management LLC	337,591	$27.46M	0.0%	+16.9%	0.248%
11/17/2025	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	986,592	$80.25M	0.1%	-1.1%	0.726%
11/17/2025	Moore Capital Management LP	211,002	$17.16M	0.2%	+29.5%	0.155%
11/17/2025	Kinetic Partners Management LP	132,800	$10.80M	0.5%	-43.7%	0.098%
11/17/2025	Lido Advisors LLC	3,784	$0.31M	0.0%	+2.7%	0.003%
11/17/2025	Jain Global LLC	21,339	$1.74M	0.0%	N/A	0.016%
11/17/2025	Holocene Advisors LP	1,534,114	$124.79M	0.3%	+153.7%	1.129%
11/17/2025	Gotham Asset Management LLC	197,535	$16.07M	0.1%	-5.0%	0.145%
11/17/2025	Brevan Howard Capital Management LP	7,668	$0.62M	0.0%	-80.6%	0.006%
11/17/2025	Candelo Capital Management LP	60,896	$4.95M	4.3%	-24.1%	0.045%
11/17/2025	Cinctive Capital Management LP	38,328	$3.12M	0.1%	N/A	0.028%
11/17/2025	Banco Bilbao Vizcaya Argentaria S.A.	4,349	$0.35M	0.0%	+55.5%	0.003%
11/17/2025	California Public Employees Retirement System	257,675	$20.96M	0.0%	+40.7%	0.190%
11/17/2025	Bank of America Corp DE	733,608	$59.67M	0.0%	+17.8%	0.540%
11/17/2025	Bank of Nova Scotia	265,053	$21.56M	0.0%	+11.3%	0.195%
11/17/2025	Algert Global LLC	107,900	$8.78M	0.1%	-8.6%	0.079%
11/17/2025	Alliancebernstein L.P.	271,768	$22.11M	0.0%	+35.2%	0.200%
11/17/2025	Ameriprise Financial Inc.	1,314,923	$106.96M	0.0%	-37.7%	0.968%
11/14/2025	Creative Planning	20,584	$1.67M	0.0%	-9.2%	0.015%
11/14/2025	Hawk Ridge Capital Management LP	274,600	$22.34M	1.1%	+43.5%	0.202%
11/14/2025	Credit Agricole S A	25,059	$2.04M	0.0%	N/A	0.018%
11/14/2025	Raymond James Financial Inc.	872,384	$70.96M	0.0%	-7.6%	0.642%
11/14/2025	Amundi	207,512	$17.36M	0.0%	-23.3%	0.153%
11/14/2025	Fund 1 Investments LLC	12,813	$1.04M	0.1%	N/A	0.009%
11/14/2025	Man Group plc	28,521	$2.32M	0.0%	+279.7%	0.021%
11/14/2025	California State Teachers Retirement System	134,094	$10.91M	0.0%	+1.5%	0.099%
11/14/2025	Davidson Kempner Capital Management LP	530,000	$43.11M	0.7%	+307.7%	0.390%
11/14/2025	Zurcher Kantonalbank Zurich Cantonalbank	65,861	$5.36M	0.0%	+67.9%	0.048%
11/14/2025	Brooklyn Investment Group	4,519	$0.37M	0.0%	+158.4%	0.003%
11/14/2025	UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC	360,959	$29.36M	0.0%	-47.0%	0.266%
11/14/2025	Wellington Management Group LLP	457,300	$37.20M	0.0%	-2.2%	0.337%
11/14/2025	Comerica Bank	55,217	$4.49M	0.0%	-52.2%	0.041%
11/14/2025	Chesapeake Capital Corp IL	3,794	$0.31M	0.3%	N/A	0.003%
11/14/2025	F m Investments LLC	3,647	$0.30M	0.0%	N/A	0.003%
11/13/2025	Epoch Investment Partners Inc.	38,880	$3.16M	0.0%	N/A	0.029%
11/13/2025	Pathstone Holdings LLC	48,084	$3.91M	0.0%	+0.6%	0.035%
11/13/2025	Johnson Financial Group Inc.	550	$45K	0.0%	-21.4%	0.000%
11/13/2025	Invesco Ltd.	3,151,914	$256.38M	0.0%	-4.4%	2.320%
11/13/2025	Sei Investments Co.	117,497	$9.56M	0.0%	-4.6%	0.086%
11/13/2025	UBS Group AG	490,473	$39.90M	0.0%	-40.7%	0.361%
11/13/2025	Jones Road Capital Management L.P.	82,700	$6.73M	4.0%	-17.2%	0.061%
11/13/2025	Connor Clark & Lunn Investment Management Ltd.	116,309	$9.46M	0.0%	+43.3%	0.086%
11/13/2025	BNP Paribas Financial Markets	500,001	$40.67M	0.0%	-30.6%	0.368%
11/13/2025	Barrow Hanley Mewhinney & Strauss LLC	922,730	$75.06M	0.2%	-5.6%	0.679%
11/13/2025	Mackenzie Financial Corp	9,759	$0.79M	0.0%	N/A	0.007%
11/13/2025	Franklin Resources Inc.	5,096	$0.42M	0.0%	N/A	0.004%
11/13/2025	Magnetar Financial LLC	45,664	$3.71M	0.0%	N/A	0.034%
11/13/2025	Quadrant Capital Group LLC	15,484	$1.26M	0.0%	-3.3%	0.011%
11/13/2025	Van ECK Associates Corp	50,925	$4.14M	0.0%	+38.0%	0.037%
11/13/2025	FourThought Financial Partners LLC	14,382	$1.17M	0.1%	+9.9%	0.011%
11/13/2025	Capital World Investors	7,900,572	$642.63M	0.1%	+15.8%	5.815%
11/13/2025	Capital International Sarl	8,537	$0.69M	0.0%	-15.4%	0.006%
11/13/2025	Capital International Inc. CA	414,054	$33.68M	0.3%	-9.7%	0.305%
11/13/2025	Capital International Investors	17,147,559	$1.39B	0.2%	+2.6%	12.621%
11/13/2025	Capital Group Private Client Services Inc.	76,850	$6.25M	0.1%	-77.9%	0.057%
11/13/2025	Legal & General Group Plc	239,927	$19.52M	0.0%	+1.1%	0.177%
11/13/2025	Swiss National Bank	273,400	$22.24M	0.0%	+1.4%	0.201%
11/13/2025	WINTON GROUP Ltd	97,499	$7.93M	0.3%	+1,464.7%	0.072%
11/13/2025	Schroder Investment Management Group	459,948	$36.46M	0.0%	-13.7%	0.339%
11/13/2025	Jefferies Financial Group Inc.	59,340	$4.83M	0.0%	+2.2%	0.044%
11/13/2025	Meiji Yasuda Asset Management Co Ltd.	3,203	$0.26M	0.0%	-5.3%	0.002%
11/13/2025	Natixis Advisors LLC	75,923	$6.18M	0.0%	+0.4%	0.056%
11/13/2025	First Trust Advisors LP	84,027	$6.84M	0.0%	-57.4%	0.062%
11/13/2025	Neuberger Berman Group LLC	948,412	$77.14M	0.1%	+21.8%	0.698%
11/12/2025	Gamco Investors INC. ET AL	395,800	$32.19M	0.3%	-1.2%	0.291%
11/12/2025	Barclays PLC	319,691	$26M	0.0%	+133.4%	0.235%
11/12/2025	Crossmark Global Holdings Inc.	8,864	$0.72M	0.0%	+8.8%	0.007%
11/12/2025	Mengis Capital Management Inc.	81,807	$6.65M	1.3%	+1.3%	0.060%
11/12/2025	ARK Investment Management LLC	742	$60K	0.0%	+378.7%	0.001%
11/12/2025	Dimensional Fund Advisors LP	2,142,000	$174.21M	0.0%	+7.1%	1.577%
11/12/2025	Victory Capital Management Inc.	20,717	$1.69M	0.0%	-11.4%	0.015%
11/12/2025	Roubaix Capital LLC	46,543	$3.79M	1.8%	-23.2%	0.034%
11/12/2025	Segall Bryant & Hamill LLC	381,732	$31.05M	0.4%	+2.3%	0.281%
11/12/2025	Fisher Asset Management LLC	957,648	$77.90M	0.0%	+52.5%	0.705%
11/12/2025	Journey Strategic Wealth LLC	4,517	$0.37M	0.0%	-19.2%	0.003%
11/12/2025	Royce & Associates LP	137,462	$11.18M	0.1%	-15.5%	0.101%

Data available starting January 2016

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.

Today's Range

Now: $100.38

$97.60

$100.46

50 Day Range

MA: $91.93

$79.13

$103.08

52 Week Range

Now: $100.38

$39.23

$103.64

Volume

1,141,692 shs

Average Volume

1,080,553 shs

Market Capitalization

$13.64 billion

P/E Ratio

32.48

Dividend Yield

N/A

Beta

1.08

Who are the company insiders with the largest holdings of ATI?: ATI's top insider investors include:
Robert S Wetherbee (Chairman)
Kimberly A Fields (CEO)
Elliot S Davis (Insider)
Timothy J Harris (VP)
David J Morehouse (Director)
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:
Capital International Investors — 12.62%
Vanguard Group Inc. — 9.61%
Capital World Investors — 5.82%
State Street Corp — 4.45%
Invesco Ltd. — 2.32%
Dimensional Fund Advisors LP — 1.58%
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:
Cartenna Capital LP
Ameriprise Financial Inc.
UBS Group AG
UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC
Vanguard Group Inc.
Capital Group Private Client Services Inc.
Voloridge Investment Management LLC
BNP Paribas Financial Markets
In the previous year, company insiders that have sold ATI company stock include:
Robert S Wetherbee (Chairman)
Kimberly A Fields (CEO)
Elliot S Davis (Insider)
Timothy J Harris (VP)
David J Morehouse (Director)
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:
Capital World Investors
Holocene Advisors LP
Capital International Investors
State Street Corp
Davidson Kempner Capital Management LP
Fisher Asset Management LLC
Channing Capital Management LLC
Barclays PLC