ATI Inc.

Historical 13F Holders

Symbol
ATI
CUSIP
01741R102
All holders as of
Q2 2026
Type
Equity
Class
COM
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each filer's latest filing for 01741R102 since 12/18/2024, largest first.

Filer % of Class Filed
BlackRock, Inc. 13G/A 10.1% 10/3/2025
Event 9/30/2025
Vanguard Capital Management LLC 13G 5.2% 4/29/2026
Event 3/31/2026
Under 5%, checked the "5 percent or less" box, or amended by a later filing (4)
Capital International Investors 13G/A 4.5% 4/7/2026
Event 3/31/2026
Capital World Investors 13G/A 4.2% 5/14/2026
Event 3/31/2026
FMR LLC 13G/A
3.5% 5/12/2025
Event 3/31/2025
Vanguard Group Inc 13G/A 0% 3/26/2026
Event 3/13/2026

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q3 24 896 k $170 M
2026 Q2 841 160 M $25.4 B
2026 Q1 717 127 M $18.5 B
2025 Q4 607 129 M $14.8 B
2025 Q3 505 129 M $10.5 B
2025 Q2 504 138 M $11.9 B
2025 Q1 446 134 M $6.98 B
2024 Q4 418 136 M $7.51 B
2024 Q3 441 133 M $8.92 B
2024 Q2 423 134 M $7.44 B
2024 Q1 367 139 M $7.10 B
2023 Q4 376 138 M $6.28 B
2023 Q3 368 133 M $5.48 B
2023 Q2 352 135 M $5.95 B
2023 Q1 364 134 M $5.29 B
2022 Q4 327 139 M $4.16 B
2022 Q3 315 131 M $3.50 B
2022 Q2 286 133 M $3.02 B
2022 Q1 309 132 M $3.55 B
2021 Q4 255 132 M $2.11 B
2021 Q3 252 133 M $2.21 B
2021 Q2 257 133 M $2.77 B
2021 Q1 254 129 M $2.72 B
2020 Q4 268 131 M $2.20 B
2020 Q3 253 122 M $1.06 B
2020 Q2 271 117 M $1.20 B
2020 Q1 283 122 M $1.04 B
2019 Q4 316 137 M $2.82 B
2019 Q3 306 133 M $2.70 B
2019 Q2 328 136 M $3.43 B
2019 Q1 346 137 M $3.49 B
2018 Q4 321 138 M $3.00 B
2018 Q3 340 137 M $4.05 B
2018 Q2 326 135 M $3.38 B
2018 Q1 338 130 M $3.07 B
2017 Q4 327 131 M $3.16 B
2017 Q3 299 120 M $2.86 B
2017 Q2 277 121 M $2.06 B
2017 Q1 270 117 M $2.10 B
2016 Q4 270 106 M $1.70 B
2016 Q3 257 101 M $1.82 B
2016 Q2 256 105 M $1.34 B
2016 Q1 250 89.5 M $1.46 B
2015 Q4 279 92.6 M $1.04 B
2015 Q3 274 89.3 M $1.27 B
2015 Q2 329 88.1 M $2.66 B
2015 Q1 318 84.0 M $2.52 B
2014 Q4 333 87.1 M $3.04 B
2014 Q3 358 87.3 M $3.24 B
2014 Q2 349 92.4 M $4.17 B
2014 Q1 333 86.1 M $3.25 B