ATI Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NYSE:ATI Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
09 Mar 26	SellUS$1,019,464	David Morehouse	Individual	6,609	US$154.53
18 Dec 25	SellUS$6,576,513	Robert Wetherbee	Individual	60,020	US$110.34
21 Nov 25	SellUS$242,289	Tina Busch	Individual	2,598	US$93.26
04 Aug 25	SellUS$598,920	David Morehouse	Individual	7,900	US$76.30
01 Apr 25	SellUS$884,510	David Morehouse	Individual	17,000	US$52.03

Insider Trading Volume

Insider Buying: ATI insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of ATI?
Owner Type	Number of Shares	Ownership Percentage
State or Government	116,958	0.0854%
Individual Insiders	1,397,554	1.02%
General Public	5,866,436	4.28%
Institutions	129,555,351	94.6%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 69.72% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
20.8%	Capital Research and Management Company	28,461,278	US$4.0b	-1.08%	0.17%
10.7%	BlackRock, Inc.	14,666,770	US$2.1b	-1.28%	0.03%
9.29%	The Vanguard Group, Inc.	12,726,524	US$1.8b	-2.51%	0.02%
4.09%	State Street Global Advisors, Inc.	5,599,233	US$794.0m	-7.33%	0.03%
3.69%	FMR LLC	5,056,566	US$717.0m	3.6%	0.04%
1.77%	Geode Capital Management, LLC	2,419,168	US$343.0m	-1.04%	0.02%
1.72%	Invesco Ltd.	2,355,377	US$334.0m	1.85%	0.08%
1.55%	Dimensional Fund Advisors LP	2,125,976	US$301.5m	-0.75%	0.04%
1.49%	Dendur Capital LP	2,039,291	US$289.2m	-24.2%	30.71%
1.48%	D. E. Shaw & Co., L.P.	2,022,621	US$286.8m	-33.2%	0.25%
1.26%	Norges Bank Investment Management	1,732,195	US$245.6m	1.93%	0.02%
1.16%	American Century Investment Management Inc	1,590,017	US$225.5m	15.7%	0.09%
1.13%	UBS Asset Management AG	1,545,445	US$219.1m	81.5%	0.02%
1.09%	Charles Schwab Investment Management, Inc.	1,487,892	US$211.0m	-1.55%	0.03%
0.91%	Columbia Management Investment Advisers, LLC	1,244,248	US$176.4m	-5.37%	0.04%
0.9%	Frontier Capital Management Co LLC	1,227,453	US$174.1m	-21%	1.77%
0.86%	Bowen, Hanes & Company, Inc.	1,177,705	US$167.0m	-11.4%	4.11%
0.86%	Northern Trust Global Investments	1,174,117	US$166.5m	-4.29%	0.02%
0.78%	Holocene Advisors, LP	1,071,745	US$152.0m	-30.1%	0.34%
0.75%	Invesco Capital Management LLC	1,029,547	US$146.0m	22.7%	0.04%
0.74%	Mirae Asset Global Investments Co., Ltd.	1,013,105	US$143.7m	2.13%	0.09%
0.73%	AQR Capital Management, LLC	1,006,181	US$142.7m	678%	0.08%
0.68%	Loomis Sayles & Company, L.P.	935,673	US$132.7m	-7.31%	0.17%
0.66%	Fisher Asset Management, LLC	908,495	US$128.8m	-5.13%	0.04%
0.63%	Barrow, Hanley, Mewhinney & Strauss, LLC	857,900	US$121.7m	-7.03%	0.35%

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2026/03/23 03:57
End of Day Share Price	2026/03/20 00:00
Earnings	2025/12/28
Annual Earnings	2025/12/28

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

Package	Data	Timeframe	Example US Source ^*
Company Financials	10 years	Income statement Cash flow statement Balance sheet	SEC Form 10-K SEC Form 10-Q
Analyst Consensus Estimates	+3 years	Forecast financials Analyst price targets	Analyst Research Reports Blue Matrix
Market Prices	30 years	Stock prices Dividends, Splits and Actions	ICE Market Data SEC Form S-1
Ownership	10 years	Top shareholders Insider trading	SEC Form 4 SEC Form 13D
Management	10 years	Leadership team Board of directors	SEC Form 10-K SEC Form DEF 14A
Key Developments	10 years	Company announcements	SEC Form 8-K

^* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

ATI Inc. is covered by 21 analysts. 8 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

Analyst	Institution
David Strauss	Barclays
Joshua Sullivan	Benchmark Company
Paretosh Misra	Berenberg