Capital International Investors

13F Holdings History for ATI INC - Common Stock (ATI)

Symbol: ATI on NYSE
Investment type: Equity / Common Stock
Latest Disclosed Ownership: 17.6M shares
Security Ownership: 12.8%

Shares, Excluding Options vs Price

Value, Excluding Options

Capital International Investors ownership in ATI INC Common Stock (ATI)

2025-11-13 - Capital International Investors has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 17.6M shares of ATI INC Common Stock (ATI). This represents 12.8% percent ownership of the company. In their previous filing dated 2025-02-14, Capital International Investors had reported owning 16.8M shares, indicating an increase of 4.99% percent.

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filed at
Capital International Investors	12.8%	+8.33%	$1.43B	17.6M	+838,150	+4.99%	$81.34	13G/A	9/30/2025	13 Nov 2025 11:04:42
Capital International Investors	11.8%		$779M	16.8M			$46.38	13G/A	12/31/2024	14 Feb 2025 13:32:33

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
9/30/2025	0.23%	+0.01%	$1.39B	17.1M	+436,131	+2.61%	$81.31	Q3 2025
6/30/2025	0.25%	0%	$1.44B	16.7M	-180,037	-1.07%	$86.35	Q2 2025
3/31/2025	0.17%	+0.01%	$879M	16.9M	+989,904		$52.02	Q1 2025
12/31/2024	0.16%	+0.01%	$875M	15.9M	+817,182	+5.42%	$55.04	Q4 2024
9/30/2024	0.19%	0%	$1.01B	15.1M	-13,339	-0.09%	$66.90	Q3 2024
6/30/2024	0.17%	0%	$837M	15.1M	-312,179	-2.03%	$55.46	Q2 2024
3/31/2024	0.16%	+0%	$789M	15.4M	+203,012	+1.34%	$51.17	Q1 2024
12/31/2023	0.16%	0%	$691M	15.2M	-18,601	-0.12%	$45.47	Q4 2023
9/30/2023	0.16%	+0%	$627M	15.2M	+22,459	+0.15%	$41.15	Q3 2023
6/30/2023	0.16%	+0.02%	$672M	15.2M	+1,827,961	+13.7%	$44.23	Q2 2023
3/31/2023	0.14%	+0%	$528M	13.4M	+422,613	+3.26%	$39.46	Q1 2023
12/31/2022	0.1%	+0.01%	$387M	13M	+1,129,903	+9.56%	$29.86	Q4 2022
9/30/2022	0.09%	+0%	$315M	11.8M	+44,941	+0.38%	$26.61	Q3 2022
6/30/2022	0.07%	0%	$267M	11.8M	-400,401	-3.29%	$22.71	Q2 2022
3/31/2022	0.07%	+0%	$327M	12.2M	+1,160	+0.01%	$26.84	Q1 2022
12/31/2021	0.04%	+0%	$194M	12.2M	+1,089,416	+9.83%	$15.93	Q4 2021
9/30/2021	0.04%	+0%	$184M	11.1M	+310,713	+2.88%	$16.63	Q3 2021
6/30/2021	0.05%	+0%	$225M	10.8M	+788,343	+7.89%	$20.85	Q2 2021
3/31/2021	0.05%	+0.01%	$210M	9.99M	+1,541,770	+18.3%	$21.06	Q1 2021
12/31/2020	0.04%	+0%	$142M	8.45M	+1,703	+0.02%	$16.77	Q4 2020
9/30/2020	0.02%	-0.01%	$73.6M	8.44M	-2,140,350	-20.2%	$8.72	Q3 2020
6/30/2020	0.04%	0%	$108M	10.6M	-1,303,058	-11%	$10.19	Q2 2020
3/31/2020	0.04%	+0%	$101M	11.9M	+292,266	+2.52%	$8.50	Q1 2020
12/31/2019	0.08%	+0%	$240M	11.6M	+2,478	+0.02%	$20.66	Q4 2019
9/30/2019	0.09%	+0.01%	$235M	11.6M	+1,836,906	+18.8%	$20.25	Q3 2019
6/30/2019	0.1%	+0.09%	$246M	9.76M	+9,322,905	+2149%	$25.20	Q2 2019
3/31/2019	0%	+0%	$11.1M	434K	+433,758	NEW	$25.57	Q1 2019

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.