AtiATI
13F holders, Q4 2025 (December 31)570holders +100
126new positions
36sold out
9famous investors
$114.80avg. 13F price*
At the end of Q4 2025, 570 institutions reported holding Ati Inc. (ATI) in their 13F filings, up 100 from Q3 2025. 126 opened new positions and 36 sold out. The largest holders were Capital International Investors ($2.0B), BlackRock, Inc. ($1.7B) and Vanguard Group Inc. ($1.5B). 9 famous investors held it, including Mario Gabelli (0.4% of GAMCO Investors's portfolio), David E. Shaw (0.2% of D. E. Shaw & Co.'s portfolio) and Steve Cohen (0.1% of Point72 Asset Management's portfolio).
- Company
- Ati Inc.
- CUSIP
- 01741R102
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 126 | $504.8M |
| Exits | 36 | $222.7M |
All 13F filers, Q3 2025 → Q4 2025: 11,147,823 shares bought and 13,817,154 shares sold, net −2,669,331 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 570 holders
| Capital International Investors | 0.31% | Reduce -0.3% | 17,095,803 | $2.0B |
| BlackRock, Inc. | 0.03% | Reduce -1.3% | 14,666,770 | $1.7B |
| Vanguard Group Inc. | 0.02% | Reduce -2.5% | 12,726,524 | $1.5B |
| Capital World Investors | 0.12% | Reduce -6.9% | 7,355,793 | $844.2M |
| State Street Corp. | 0.02% | Reduce -7.3% | 5,599,233 | $642.6M |
| FMR LLC | 0.03% | Add +3.6% | 5,074,824 | $582.4M |
| Capital Research Global Investors | 0.08% | Add +12.0% | 3,611,724 | $414.5M |
| Invesco Ltd. | 0.04% | Add +7.4% | 3,384,924 | $388.5M |
| Geode Capital Management, LLC | 0.02% | Reduce -1.0% | 2,419,168 | $277.7M |
| Dimensional Fund Advisors LP | 0.05% | Reduce -0.8% | 2,125,976 | $244.0M |
| Dendur Capital LP | 24.34% | Reduce -24.2% | 2,039,291 | $234.0M |
| D. E. Shaw & Co. | 0.19% | Reduce -33.2% | 2,022,621 | $232.1M |
| Norges Bank | 0.02% | — | 1,732,195 | $198.8M |
| American Century Companies Inc. | 0.09% | Add +15.7% | 1,590,017 | $182.5M |
| Charles Schwab Investment Management Inc. | 0.03% | Reduce -1.6% | 1,487,892 | $170.8M |
| Morgan Stanley | 0.01% | Reduce -9.3% | 1,283,539 | $147.3M |
| Ameriprise Financial Inc. | 0.03% | Reduce -5.4% | 1,244,248 | $142.8M |
| Frontier Capital Management Co. LLC | 1.49% | Reduce -21.0% | 1,227,453 | $140.9M |
| UBS Group AG | 0.03% | Add +143.3% | 1,193,129 | $136.9M |
| Bowen Hanes & Co. Inc. | 3.39% | Reduce -11.4% | 1,177,705 | $135.2M |
| Northern Trust Corp. | 0.02% | Reduce -4.3% | 1,174,117 | $134.7M |
| Holocene Advisors, LP | 0.26% | Reduce -30.1% | 1,071,745 | $123.0M |
| AQR Capital Management | 0.06% | Add +684.9% | 1,019,840 | $117.0M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.17% | Add +2.2% | 1,007,959 | $115.7M |
| Loomis Sayles & Co. L P | 0.13% | Reduce -7.3% | 935,673 | $107.4M |
| Bank of New York Mellon Corp | 0.02% | Reduce -0.6% | 912,874 | $104.8M |
| Fisher Asset Management | 0.04% | Reduce -5.1% | 908,495 | $104.3M |
| Barrow Hanley Mewhinney & Strauss LLC | 0.33% | Reduce -7.0% | 857,900 | $98.5M |
| Neuberger Berman Group LLC | 0.07% | Reduce -13.3% | 822,714 | $94.4M |
| Raymond James Financial Inc. | 0.03% | Reduce -7.9% | 803,317 | $92.3M |
| Bank of America Corp. | 0.01% | Add +8.9% | 799,074 | $91.7M |
| Prudential Financial Inc. | 0.11% | Add +247.3% | 796,436 | $91.4M |
| Point72 Asset Management | 0.14% | Add +145.9% | 760,177 | $87.2M |
| Jain Global LLC | 0.78% | Add +3017.7% | 665,276 | $76.3M |
| Marshall Wace, LLP | 0.07% | Add +22.3% | 628,285 | $72.1M |
| Allspring Global Investments Holdings, LLC | 0.12% | Reduce -4.7% | 603,707 | $72.0M |
| Nuveen, LLC | 0.02% | Add +30.6% | 547,541 | $62.8M |
| Federated Hermes, Inc. | 0.10% | Add +11.0% | 545,854 | $62.6M |
| Millennium Management | 0.04% | Add +50.1% | 506,881 | $58.2M |
| T. Rowe Price Associates Inc. | 0.01% | Reduce -53.6% | 498,177 | $57.2M |
| Woodline Partners LP | 0.21% | Reduce -36.9% | 471,195 | $54.1M |
| Schroder Investment Management Group | 0.04% | Reduce -1.4% | 453,545 | $52.7M |
| Qube Research & Technologies Ltd | 0.07% | New | 430,227 | $49.4M |
| BNP Paribas Financial Markets | 0.03% | Reduce -21.5% | 392,682 | $45.1M |
| Balyasny Asset Management L.P. | 0.09% | New | 389,986 | $44.8M |
| GAMCO Investors | 0.42% | Reduce -3.2% | 383,100 | $44.0M |
| Vaughan Nelson Investment Management, L.P. | 0.42% | New | 377,550 | $43.3M |
| Wellington Management Group LLP | 0.01% | Reduce -17.5% | 377,358 | $43.3M |
| Arrowstreet Capital, Limited Partnership | 0.02% | New | 363,271 | $41.7M |
| Goldman Sachs Group Inc. | 0.01% | Reduce -3.7% | 362,387 | $41.6M |
| JPMorgan Chase & Co. | 0.00% | Add +6.5% | 354,881 | $40.7M |
| Tran Capital Management, L.P. | 4.84% | Add +21.7% | 352,322 | $40.4M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.01% | Reduce -2.4% | 352,316 | $40.4M |
| Rhumbline Advisers | 0.03% | Reduce -4.0% | 347,548 | $39.9M |
| Capital International, Inc. | 0.30% | Reduce -21.3% | 326,054 | $37.4M |
| Senator Investment Group LP | 1.50% | No change | 325,000 | $37.3M |
| KLCM Advisors, Inc. | 3.18% | Reduce -8.8% | 322,664 | $37.0M |
| Segall Bryant & Hamill, LLC | 0.50% | Reduce -15.7% | 321,693 | $36.9M |
| Retirement Systems of Alabama | 0.12% | Reduce -1.1% | 308,783 | $35.4M |
| Emerald Advisers, LLC | 1.09% | Reduce -1.8% | 307,552 | $35.3M |
| Alliancebernstein L.P. | 0.01% | Add +12.8% | 306,517 | $35.2M |
| 1832 Asset Management L.P. | 0.04% | New | 294,473 | $33.8M |
| Principal Financial Group Inc. | 0.02% | Reduce -4.6% | 292,144 | $33.5M |
| Gotham Asset Management | 0.12% | Add +47.3% | 290,996 | $33.4M |
| Jane Street Group, LLC | 0.04% | Add +208.0% | 277,198 | $31.8M |
| MUFG Securities EMEA plc | 0.37% | New | 277,000 | $31.8M |
| Swiss National Bank | 0.02% | Reduce -0.6% | 271,700 | $31.2M |
| Lord, Abbett & Co. LLC | 0.10% | New | 267,049 | $30.6M |
| Natixis | 0.12% | New | 264,067 | $30.3M |
| Cartenna Capital, LP | 1.57% | New | 260,000 | $29.8M |
| California Public Employees Retirement System | 0.02% | Reduce -1.2% | 254,689 | $29.2M |
| Canada Pension Plan Investment Board | 0.02% | Add +3.8% | 245,526 | $28.2M |
| Allianz Asset Management GmbH | 0.03% | Add +121.5% | 242,511 | $27.8M |
| Bank of Nova Scotia | 0.04% | Reduce -8.6% | 242,200 | $27.8M |
| Nomura Asset Management International Inc. | 0.04% | — | 239,609 | $27.5M |
| State of Wisconsin Investment Board | 0.06% | Reduce -12.8% | 228,775 | $26.3M |
| Legal & General Group Plc | 0.01% | Reduce -6.3% | 224,789 | $25.8M |
| Wells Fargo & Company | 0.00% | Reduce -1.1% | 217,753 | $25.0M |
| Driehaus Capital Management LLC | 0.17% | New | 213,111 | $24.5M |
| Hawk Ridge Capital Management LP | 1.11% | Reduce -23.7% | 209,500 | $24.0M |
| ING Groep NV | 0.14% | Reduce -33.5% | 195,300 | $22.4M |
| Emerald Mutual Fund Advisers Trust | 1.03% | No change | 183,555 | $21.1M |
| Corient Private Wealth LP | 0.03% | Reduce -49.9% | 176,486 | $20.5M |
| Cibc World Markets Corp. | 0.10% | — | 177,444 | $20.4M |
| Voloridge Investment Management, LLC | 0.07% | Reduce -69.7% | 175,732 | $20.2M |
| Concentric Capital Strategies, LP | 0.96% | New | 161,956 | $18.6M |
| Natixis Advisors, LLC | 0.02% | Add +99.2% | 151,265 | $17.4M |
| New York State Teachers Retirement System | 0.03% | Reduce -1.4% | 147,969 | $17.0M |
| Signature Estate & Investment Advisors LLC | 0.33% | Add +0.4% | 144,329 | $16.6M |
| Barclays PLC | 0.01% | Reduce -56.4% | 139,544 | $16.0M |
| Sanctuary Advisors, LLC | 0.08% | Add +65.7% | 135,265 | $15.5M |
| Man Group plc | 0.03% | Add +361.6% | 131,661 | $15.1M |
| Royce & Associates LP | 0.15% | Reduce -4.3% | 131,532 | $15.1M |
| California State Teachers Retirement System | 0.01% | Reduce -2.7% | 130,422 | $15.0M |
| Mountaineer Partners Management, LLC | 8.28% | Reduce -10.5% | 128,909 | $14.8M |
| Algert Global LLC | 0.23% | Add +18.6% | 127,945 | $14.7M |
| Jupiter Asset Management Ltd. | 0.12% | Reduce -9.3% | 125,139 | $14.4M |
| Sei Investments Co. | 0.01% | Add +1.8% | 119,585 | $13.7M |
| Weiss Asset Management LP | 0.25% | Add +1062.3% | 119,031 | $13.7M |
| J. Goldman & Co LP | 0.51% | Reduce -22.5% | 114,246 | $13.1M |
"% of holder's portfolio" is ATI's weight in each manager's 13F, not the share of Ati Inc. the manager owns.