AtiATI
13F holders, Q3 2025 (September 30)470holders −1
86new positions
85sold out
12famous investors
$81.34avg. 13F price*
At the end of Q3 2025, 470 institutions reported holding Ati Inc. (ATI) in their 13F filings, down 1 from Q2 2025. 86 opened new positions and 85 sold out. The largest holders were Capital International Investors ($1.4B), BlackRock, Inc. ($1.2B) and Vanguard Group Inc. ($1.1B). 12 famous investors held it, including Mario Gabelli (0.3% of GAMCO Investors's portfolio), David E. Shaw (0.2% of D. E. Shaw & Co.'s portfolio) and Paul Tudor Jones (0.1% of Tudor Investment Corporation's portfolio).
- Company
- Ati Inc.
- CUSIP
- 01741R102
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 86 | $228.4M |
| Exits | 85 | $540.5M |
All 13F filers, Q2 2025 → Q3 2025: 11,319,900 shares bought and 14,766,580 shares sold, net −3,446,680 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 470 holders
| Capital International Investors | 0.23% | Add +2.6% | 17,147,559 | $1.4B |
| BlackRock, Inc. | 0.02% | Reduce -0.6% | 14,857,455 | $1.2B |
| Vanguard Group Inc. | 0.02% | Reduce -2.1% | 13,054,247 | $1.1B |
| Capital World Investors | 0.09% | Add +15.8% | 7,900,572 | $642.6M |
| State Street Corp. | 0.02% | Add +7.4% | 6,042,244 | $491.5M |
| FMR LLC | 0.02% | Add +43.5% | 4,899,170 | $398.5M |
| Capital Research Global Investors | 0.05% | No change | 3,224,970 | $262.3M |
| Invesco Ltd. | 0.04% | Reduce -4.4% | 3,151,914 | $256.4M |
| D. E. Shaw & Co. | 0.21% | Reduce -13.8% | 3,027,102 | $246.2M |
| Dendur Capital LP | 24.39% | Reduce -15.3% | 2,689,160 | $218.7M |
| Geode Capital Management, LLC | 0.01% | Add +0.4% | 2,444,673 | $198.9M |
| Dimensional Fund Advisors LP | 0.04% | Add +7.1% | 2,142,000 | $174.2M |
| Frontier Capital Management Co. LLC | 1.13% | Reduce -30.1% | 1,554,561 | $126.4M |
| Holocene Advisors, LP | 0.29% | Add +153.7% | 1,534,114 | $124.8M |
| Charles Schwab Investment Management Inc. | 0.02% | Add +0.9% | 1,511,283 | $122.9M |
| Morgan Stanley | 0.01% | Add +17.2% | 1,414,386 | $115.0M |
| American Century Companies Inc. | 0.06% | Reduce -0.8% | 1,374,432 | $111.8M |
| Bowen Hanes & Co. Inc. | 2.71% | Reduce -3.4% | 1,329,220 | $108.1M |
| Ameriprise Financial Inc. | 0.02% | Reduce -37.7% | 1,314,923 | $107.0M |
| Royal Bank of Canada | 0.02% | Add +37.4% | 1,284,686 | $104.5M |
| Northern Trust Corp. | 0.01% | Reduce -2.1% | 1,226,747 | $99.8M |
| Channing Capital Management, LLC | 2.38% | Add +34.2% | 1,109,160 | $90.2M |
| T. Rowe Price Associates Inc. | 0.01% | Reduce -5.7% | 1,074,149 | $87.4M |
| Loomis Sayles & Co. L P | 0.10% | Reduce -2.9% | 1,009,449 | $82.1M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.13% | Reduce -1.1% | 986,592 | $80.2M |
| Fisher Asset Management | 0.03% | Add +52.5% | 957,648 | $77.9M |
| Neuberger Berman Group LLC | 0.06% | Add +21.8% | 948,412 | $77.1M |
| Barrow Hanley Mewhinney & Strauss LLC | 0.24% | Reduce -5.6% | 922,730 | $75.1M |
| Bank of New York Mellon Corp | 0.01% | Add +2.9% | 917,922 | $74.7M |
| Raymond James Financial Inc. | 0.02% | Reduce -7.6% | 872,384 | $71.0M |
| Woodline Partners LP | 0.29% | Reduce -10.9% | 747,127 | $60.8M |
| Bank of America Corp. | 0.00% | Add +17.9% | 733,608 | $59.7M |
| Allspring Global Investments Holdings, LLC | 0.08% | Add +0.6% | 633,279 | $52.6M |
| Voloridge Investment Management, LLC | 0.16% | Reduce -29.4% | 580,467 | $47.2M |
| Davidson Kempner Capital Management LP | 0.91% | Add +307.7% | 530,000 | $43.1M |
| Rokos Capital Management LLP | 0.54% | New | 527,256 | $42.9M |
| Marshall Wace, LLP | 0.05% | Add +98.1% | 513,939 | $41.8M |
| BNP Paribas Financial Markets | 0.03% | Reduce -30.6% | 500,001 | $40.7M |
| Federated Hermes, Inc. | 0.07% | Add +9.7% | 491,849 | $40.0M |
| UBS Group AG | 0.01% | Reduce -40.7% | 490,473 | $39.9M |
| Wellington Management Group LLP | 0.01% | Reduce -2.1% | 457,300 | $37.2M |
| Schroder Investment Management Group | 0.03% | Reduce -13.7% | 459,948 | $36.5M |
| Nuveen, LLC | 0.01% | Add +0.1% | 419,407 | $34.1M |
| Capital International, Inc. | 0.27% | Reduce -9.7% | 414,054 | $33.7M |
| GAMCO Investors | 0.31% | Reduce -1.3% | 395,800 | $32.2M |
| Segall Bryant & Hamill, LLC | 0.41% | Add +2.3% | 381,732 | $31.1M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -1.1% | 376,241 | $30.6M |
| Rhumbline Advisers | 0.02% | Reduce -2.1% | 362,218 | $29.5M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.01% | Reduce -47.0% | 360,959 | $29.4M |
| KLCM Advisors, Inc. | 2.87% | Add +2.5% | 353,837 | $28.8M |
| Corient Private Wealth LP | 0.04% | Add +17.7% | 352,108 | $28.6M |
| Millennium Management | 0.02% | Add +16.9% | 337,591 | $27.5M |
| JPMorgan Chase & Co. | 0.00% | Reduce -23.2% | 333,191 | $27.1M |
| Senator Investment Group LP | 0.98% | Reduce -56.7% | 325,000 | $26.4M |
| Barclays PLC | 0.01% | Add +133.4% | 319,691 | $26.0M |
| Emerald Advisers, LLC | 0.82% | Reduce -1.8% | 313,088 | $25.5M |
| Retirement Systems of Alabama | 0.08% | Add +81.2% | 312,373 | $25.4M |
| Point72 Asset Management | 0.06% | Reduce -60.7% | 309,194 | $25.1M |
| Principal Financial Group Inc. | 0.01% | Reduce -4.3% | 306,143 | $24.9M |
| ING Groep NV | 0.13% | Add +52.5% | 293,513 | $23.9M |
| New York State Common Retirement Fund | 0.03% | Add +27.9% | 289,516 | $23.5M |
| Tran Capital Management, L.P. | 2.81% | New | 289,414 | $23.5M |
| Hawk Ridge Capital Management LP | 1.06% | Add +43.5% | 274,600 | $22.3M |
| Swiss National Bank | 0.01% | Add +1.4% | 273,400 | $22.2M |
| Alliancebernstein L.P. | 0.01% | Add +35.2% | 271,768 | $22.1M |
| Bank of Nova Scotia | 0.04% | Add +11.3% | 265,053 | $21.6M |
| State of Wisconsin Investment Board | 0.05% | Reduce -1.8% | 262,411 | $21.3M |
| Keystone Investors Pte Ltd. | 2.46% | Add +123.6% | 261,280 | $21.3M |
| Renaissance Technologies | 0.03% | Reduce -46.0% | 259,992 | $21.1M |
| California Public Employees Retirement System | 0.01% | Add +40.7% | 257,675 | $21.0M |
| Legal & General Group Plc | 0.00% | Add +1.1% | 239,927 | $19.5M |
| Macquarie Group Ltd. | 0.02% | Reduce -11.3% | 236,788 | $19.3M |
| Canada Pension Plan Investment Board | 0.01% | Reduce -19.8% | 236,626 | $19.2M |
| Prudential Financial Inc. | 0.02% | Reduce -24.2% | 229,312 | $18.7M |
| Wells Fargo & Company | 0.00% | Add +1.2% | 220,107 | $17.9M |
| Amundi | 0.01% | Reduce -23.3% | 207,512 | $17.4M |
| Moore Capital Management, LP | 0.35% | Add +29.5% | 211,002 | $17.2M |
| Saraza Management, LP | 6.09% | Reduce -31.1% | 210,000 | $17.1M |
| Gotham Asset Management | 0.07% | Reduce -5.0% | 197,535 | $16.1M |
| Emerald Mutual Fund Advisers Trust | 0.77% | Add +2.4% | 183,555 | $14.9M |
| Tudor Investment Corporation | 0.10% | Reduce -69.3% | 181,797 | $14.8M |
| Hudson Bay Capital Management LP | 0.09% | Reduce -25.1% | 154,784 | $12.6M |
| New York State Teachers Retirement System | 0.02% | Add +4.6% | 150,001 | $12.2M |
| J. Goldman & Co LP | 0.45% | New | 147,461 | $12.0M |
| Mountaineer Partners Management, LLC | 6.81% | Add +17.1% | 144,020 | $11.7M |
| Signature Estate & Investment Advisors LLC | 0.25% | New | 143,711 | $11.7M |
| Jupiter Asset Management Ltd. | 0.10% | New | 137,888 | $11.2M |
| Royce & Associates LP | 0.11% | Reduce -15.5% | 137,462 | $11.2M |
| Bridgewater Associates | 0.04% | New | 136,458 | $11.1M |
| California State Teachers Retirement System | 0.01% | Add +1.5% | 134,094 | $10.9M |
| Kinetic Partners Management, LP | 0.52% | Reduce -43.7% | 132,800 | $10.8M |
| AQR Capital Management | 0.01% | Add +100.1% | 129,928 | $10.4M |
| Bayberry Capital Partners LP | 2.91% | New | 124,100 | $10.1M |
| Sei Investments Co. | 0.01% | Reduce -4.6% | 117,497 | $9.6M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.03% | Add +43.3% | 116,309 | $9.5M |
| Deutsche Bank AG | 0.00% | Add +2.5% | 114,177 | $9.3M |
| Citadel Advisors | 0.01% | Reduce -80.9% | 112,903 | $9.2M |
| Allianz Asset Management GmbH | 0.01% | Reduce -0.2% | 109,464 | $8.9M |
| Algert Global LLC | 0.15% | Reduce -8.6% | 107,900 | $8.8M |
| Discovery Capital Management, LLC / CT | 0.47% | New | 105,100 | $8.5M |
"% of holder's portfolio" is ATI's weight in each manager's 13F, not the share of Ati Inc. the manager owns.