ATI INC - Common Stock (ATI)

Historical Holders from Q1 2014 to Q4 2025

Type / Class
Equity / Common Stock
Symbol
ATI on NYSE
Shares outstanding
138,756,298
Price per share
$114.76
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
128,674,897
Total reported value
$10,466,069,595
% of total 13F portfolios
0.01%
Share change
-5,126,272
Value change
-$457,449,211
Number of holders
461
Price from insider filings
$114.76
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of ATI INC - Common Stock (ATI) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Capital International Investors 13% +8.3% $1,434,712,580 +$68,175,121 17,638,463 +5% Capital International Investors 30 Sep 2025
VANGUARD GROUP INC 9.8% $644,483,447 13,895,719 The Vanguard Group 31 Mar 2025
BlackRock, Inc. 10% +2% $1,078,405,219 -$1,700,640 13,891,604 -0.16% BlackRock, Inc. 30 Sep 2025
Capital World Investors 5.7% $643,326,926 7,909,109 Capital World Investors 30 Sep 2025
FMR LLC 3.5% -32% $229,176,181 -$110,842,913 4,941,272 -33% FMR LLC 31 Mar 2025
As of 30 Sep 2025, ATI INC - Common Stock (ATI) has 461 institutional shareholders filing 13F forms. They hold 128,674,897 shares. of 138,756,298 outstanding shares (93%) .

Top 25 institutional shareholders own 70% of the company.

Filer Ownership Nb Shares Share Change % Portfolio % Holdings Value
Capital International Investors 12% 17,147,559 +2.6% 0.23% $1,394,348,718
BlackRock, Inc. 11% 14,857,455 -0.6% 0.02% $1,208,505,389
VANGUARD GROUP INC 9.4% 13,054,247 -2.1% 0.02% $1,061,832,451
Capital World Investors 5.7% 7,900,572 +16% 0.09% $642,632,526
STATE STREET CORP 4.4% 6,042,244 +7.4% 0.02% $491,476,127
FMR LLC 3.5% 4,899,170 +44% 0.02% $398,498,467
Capital Research Global Investors 2.3% 3,224,970 0% 0.05% $262,319,060
Invesco Ltd. 2.3% 3,151,914 -4.4% 0.04% $256,376,713
D. E. Shaw & Co., Inc. 2.2% 3,027,102 -14% 0.2% $246,224,477
DENDUR CAPITAL LP 1.9% 2,689,160 -15% 24% $218,736,274
GEODE CAPITAL MANAGEMENT, LLC 1.8% 2,444,673 +0.36% 0.01% $198,887,479
DIMENSIONAL FUND ADVISORS LP 1.5% 2,142,000 +7.1% 0.04% $174,210,005
FRONTIER CAPITAL MANAGEMENT CO LLC 1.1% 1,554,561 -30% 1.1% $126,447,972
Holocene Advisors, LP 1.1% 1,534,114 +154% 0.29% $124,784,833
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 1.1% 1,511,283 +0.92% 0.02% $122,927,759
MORGAN STANLEY 1% 1,414,386 +17% 0.01% $115,046,319
AMERICAN CENTURY COMPANIES INC 0.99% 1,374,432 -0.84% 0.06% $111,796,498
BOWEN HANES & CO INC 0.96% 1,329,220 -3.4% 2.7% $108,118,755
AMERIPRISE FINANCIAL INC 0.95% 1,314,923 -38% 0.02% $106,955,837
ROYAL BANK OF CANADA 0.93% 1,284,686 +37% 0.02% $104,496,000
NORTHERN TRUST CORP 0.88% 1,226,747 -2.1% 0.01% $99,783,602
Channing Capital Management, LLC 0.8% 1,109,160 +34% 2.4% $90,219,074
PRICE T ROWE ASSOCIATES INC /MD/ 0.77% 1,074,149 -5.7% 0.01% $87,372,000
LOOMIS SAYLES & CO L P 0.73% 1,009,449 -2.9% 0.1% $82,108,581
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.71% 986,592 -1.1% 0.13% $80,246,860

Institutional Holders of ATI INC - Common Stock (ATI) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price Investors
2025 Q4 249,507 $28,887,446 +$9,601,516 $114.76 17
2025 Q3 128,674,897 $10,466,069,595 -$457,449,211 $81.34 461
2025 Q2 134,063,276 $11,564,420,309 +$170,389,514 $86.34 467
2025 Q1 132,645,364 $6,896,029,560 -$214,670,124 $52.03 422
2024 Q4 136,419,168 $7,508,811,744 +$225,127,187 $55.04 399
2024 Q3 131,139,229 $8,766,970,927 -$59,670,737 $66.91 420
2024 Q2 132,283,244 $7,335,334,205 -$50,646,411 $55.45 404
2024 Q1 132,446,513 $6,777,178,679 +$33,064,749 $51.17 342
2023 Q4 1,310,100 $59,570,278 +$1,361,298 $45.47 5
2023 Q3 130,696,251 $5,378,436,094 -$70,910,579 $41.15 328
2023 Q2 133,162,639 $5,889,276,468 -$9,203,763 $44.23 318
2023 Q1 133,874,071 $5,282,532,059 +$75,524,967 $39.46 331
2022 Q4 132,264,444 $3,950,230,728 -$21,515,871 $29.86 296
2022 Q3 127,910,298 $3,404,374,318 -$49,164,039 $26.61 271
2022 Q2 132,037,000 $2,999,495,414 +$57,218,680 $22.71 250
2022 Q1 130,319,898 $3,498,855,025 +$1,597,518 $26.84 274
2021 Q4 130,213,527 $2,073,607,254 -$21,040,476 $15.93 226
2021 Q3 132,777,467 $2,208,302,713 -$4,667,233 $16.63 229
2021 Q2 132,289,734 $2,757,792,928 +$72,320,910 $20.85 230
2021 Q1 128,996,538 $2,717,163,617 +$104,058,341 $21.06 229
2020 Q4 124,553,081 $2,089,248,777 +$59,796,004 $16.77 226
2020 Q3 119,615,704 $1,043,389,289 +$26,231,008 $8.72 208
2020 Q2 116,420,560 $1,186,205,725 -$27,378,799 $10.19 233
2020 Q1 119,140,442 $1,012,635,354 -$190,242,689 $8.50 235
2019 Q4 132,536,952 $2,736,842,264 +$43,139,129 $20.66 273
2019 Q3 130,323,003 $2,639,084,374 -$106,902,093 $20.25 264
2019 Q2 135,010,622 $3,402,138,900 +$97,004,286 $25.20 279
2019 Q1 133,249,150 $3,408,428,743 +$58,212,772 $25.57 300
2018 Q4 134,991,431 $2,939,100,455 +$28,803,352 $21.77 269
2018 Q3 131,842,168 $3,895,728,146 +$18,359,168 $29.55 288
2018 Q2 134,126,344 $3,369,497,583 +$158,037,775 $25.12 286
2018 Q1 127,801,716 $3,026,653,075 -$39,386,519 $23.68 290
2017 Q4 130,656,739 $3,154,796,611 +$256,348,565 $24.14 288
2017 Q3 119,204,452 $2,848,891,654 -$19,472,048 $23.90 252
2017 Q2 119,923,424 $2,039,934,100 +$84,995,493 $17.01 234
2017 Q1 115,370,393 $2,072,142,512 +$386,295,244 $17.96 228
2016 Q4 104,007,065 $1,656,869,264 +$88,583,274 $15.93 225
2016 Q3 99,442,520 $1,796,190,819 -$42,800,291 $18.07 222
2016 Q2 104,396,900 $1,330,963,499 +$190,543,535 $12.75 209
2016 Q1 89,227,912 $1,453,644,698 -$6,873,417 $16.30 217
2015 Q4 89,265,103 $1,004,132,904 +$6,759,698 $11.25 229
2015 Q3 89,338,346 $1,266,962,393 -$115,695,402 $14.18 237
2015 Q2 86,755,395 $2,620,050,079 +$41,526,558 $30.20 292
2015 Q1 77,938,705 $2,339,713,539 -$77,230,421 $30.01 276
2014 Q4 84,834,504 $2,948,784,177 -$9,288,545 $34.77 286
2014 Q3 85,114,790 $3,157,875,670 -$45,467,051 $37.10 309
2014 Q2 86,703,616 $3,913,826,457 +$130,242,686 $45.10 306
2014 Q1 82,888,749 $3,123,678,410 +$62,892,572 $37.68 286