ATI INC - Common Stock (ATI)

CUSIP: 01741R102

Q4 2025 13F Holders as of 31 Dec 2025

Type / Class
Equity / Common Stock
Shares outstanding
137,099,556
Total 13F shares
128,299,876
Share change
-655,090
Total reported value
$14,728,603,695
Put/Call ratio
50%
Price per share
$114.76
Number of holders
566
Value change
+$16,307,112
Number of buys
296
Number of sells
217

Quarterly Holders Quick Answers

What is CUSIP 01741R102?
CUSIP 01741R102 identifies ATI - ATI INC - Common Stock in SEC institutional holdings data.

Need full ownership history?
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Top shareholders of ATI - ATI INC - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Holder Source Role / Reporting Ownership % Shares Holdings Value 12M Net Δ As of Details
Capital International Investors
13F
Company
13%
17,147,559
$1,394,348,718 30 Sep 2025
13F
BlackRock, Inc.
13F 13D/G
Company
10%
from 13D/G
14,857,455
$1,208,505,389 30 Sep 2025
VANGUARD GROUP INC
13F
Company
9.5%
13,054,247
$1,061,832,451 30 Sep 2025
13F
Capital World Investors
13D/G 13F
Company
5.7%
7,909,109
$643,326,926 $0 30 Sep 2025
STATE STREET CORP
13F
Company
4.4%
6,042,244
$491,476,127 30 Sep 2025
13F
FMR LLC
13F 13D/G
Company
3.5%
from 13D/G
4,899,170
$398,498,467 30 Sep 2025
Capital Research Global Investors
13F
Company
2.4%
3,224,970
$262,319,060 30 Sep 2025
13F
Invesco Ltd.
13F
Company
2.3%
3,151,914
$256,376,713 30 Sep 2025
13F
D. E. Shaw & Co., Inc.
13F
Company
2.2%
3,027,102
$246,224,477 30 Sep 2025
13F
DENDUR CAPITAL LP
13F
Company
2%
2,689,160
$218,736,274 30 Sep 2025
13F
GEODE CAPITAL MANAGEMENT, LLC
13F
Company
1.8%
2,444,673
$198,887,479 30 Sep 2025
13F
DIMENSIONAL FUND ADVISORS LP
13F
Company
1.6%
2,142,000
$174,210,005 30 Sep 2025
13F
FRONTIER CAPITAL MANAGEMENT CO LLC
13F
Company
1.1%
1,554,561
$126,447,972 30 Sep 2025
13F
Holocene Advisors, LP
13F
Company
1.1%
1,534,114
$124,784,833 30 Sep 2025
13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
Company
1.1%
1,511,283
$122,927,759 30 Sep 2025
13F
MORGAN STANLEY
13F
Company
1%
1,414,386
$115,046,319 30 Sep 2025
13F
AMERICAN CENTURY COMPANIES INC
13F
Company
1%
1,374,432
$111,796,498 30 Sep 2025
13F
BOWEN HANES & CO INC
13F
Company
0.97%
1,329,220
$108,118,755 30 Sep 2025
13F
AMERIPRISE FINANCIAL INC
13F
Company
0.96%
1,314,923
$106,955,837 30 Sep 2025
13F
ROYAL BANK OF CANADA
13F
Company
0.94%
1,284,686
$104,496,000 30 Sep 2025
13F
NORTHERN TRUST CORP
13F
Company
0.89%
1,226,747
$99,783,602 30 Sep 2025
13F
Channing Capital Management, LLC
13F
Company
0.81%
1,109,160
$90,219,074 30 Sep 2025
13F
PRICE T ROWE ASSOCIATES INC /MD/
13F
Company
0.78%
1,074,149
$87,372,000 30 Sep 2025
13F
LOOMIS SAYLES & CO L P
13F
Company
0.74%
1,009,449
$82,108,581 30 Sep 2025
13F
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.
13F
Company
0.72%
986,592
$80,246,860 30 Sep 2025
13F
Fisher Asset Management, LLC
13F
Company
0.7%
957,648
$77,895,120 30 Sep 2025
13F
Neuberger Berman Group LLC
13F
Company
0.69%
948,412
$77,143,859 30 Sep 2025
13F
BARROW HANLEY MEWHINNEY & STRAUSS LLC
13F
Company
0.67%
922,730
$75,054,858 30 Sep 2025
13F
Bank of New York Mellon Corp
13F
Company
0.67%
917,922
$74,663,756 30 Sep 2025
13F
RAYMOND JAMES FINANCIAL INC
13F
Company
0.64%
872,384
$70,959,701 30 Sep 2025
13F
Woodline Partners LP
13F
Company
0.54%
747,127
$60,771,310 30 Sep 2025
13F
BANK OF AMERICA CORP /DE/
13F
Company
0.54%
733,608
$59,671,674 30 Sep 2025
13F
Allspring Global Investments Holdings, LLC
13F
Company
0.46%
633,279
$52,568,490 30 Sep 2025
13F
VOLORIDGE INVESTMENT MANAGEMENT, LLC
13F
Company
0.42%
580,467
$47,215,186 30 Sep 2025
13F
DAVIDSON KEMPNER CAPITAL MANAGEMENT LP
13F
Company
0.39%
530,000
$43,110,200 30 Sep 2025
13F
Rokos Capital Management LLP
13F
Company
0.38%
527,256
$42,876,458 30 Sep 2025
13F
MARSHALL WACE, LLP
13F
Company
0.37%
513,939
$41,803,799 30 Sep 2025
13F
BNP PARIBAS FINANCIAL MARKETS
13F
Company
0.36%
500,001
$40,670,081 30 Sep 2025
13F
FEDERATED HERMES, INC.
13F
Company
0.36%
491,849
$40,006,998 30 Sep 2025
13F
UBS Group AG
13F
Company
0.36%
490,473
$39,895,074 30 Sep 2025
13F
WELLINGTON MANAGEMENT GROUP LLP
13F
Company
0.33%
457,300
$37,196,783 30 Sep 2025
13F
SCHRODER INVESTMENT MANAGEMENT GROUP
13F
Company
0.34%
459,948
$36,455,478 30 Sep 2025
13F
Nuveen, LLC
13F
Company
0.31%
419,407
$34,114,566 30 Sep 2025
13F
Capital International, Inc./CA/
13F
Company
0.3%
414,054
$33,679,152 30 Sep 2025
13F
GAMCO INVESTORS, INC. ET AL
13F
Company
0.29%
395,800
$32,194,372 30 Sep 2025
13F
SEGALL BRYANT & HAMILL, LLC
13F
Company
0.28%
381,732
$31,050,081 30 Sep 2025
13F
GOLDMAN SACHS GROUP INC
13F
Company
0.27%
376,241
$30,603,442 30 Sep 2025
13F
RHUMBLINE ADVISERS
13F
Company
0.26%
362,218
$29,462,754 30 Sep 2025
13F
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
13F
Company
0.26%
360,959
$29,360,405 30 Sep 2025
13F
KLCM Advisors, Inc.
13F
Company
0.26%
353,837
$28,781,102 30 Sep 2025
13F

Institutional Holders of ATI INC - Common Stock (ATI) as of Q4 2025

As of 31 Dec 2025, ATI INC - Common Stock (ATI) was held by 566 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 128,299,876 shares. The largest 10 holders included Capital International Investors, BlackRock, Inc., VANGUARD GROUP INC, Capital World Investors, STATE STREET CORP, FMR LLC, Capital Research Global Investors, Invesco Ltd., GEODE CAPITAL MANAGEMENT, LLC, and DIMENSIONAL FUND ADVISORS LP. This page lists 566 institutional shareholders reporting positions in this security for the Q4 2025 filing period.
Investor Option Weight % Change % Value $ * Price Shares Share Change Activity Report Period

Compare Q4 2025 vs Q3 2025 Across Filers

Q3 2025 holders
467
Q4 2025 holders
566
Holder diff
99
Investor Q3 2025 Shares Q4 2025 Shares Share Diff Share Chg % Q3 2025 Value $ Q4 2025 Value $ Value Diff $ Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* 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.
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