Ati Inc
ATI- Exchange
- NYSE
- Industry
- Steel Pipe & Tubes
- SEC CIK
- 0001018963
In the last 90 days, Ati Inc insiders filed 0 open-market purchases and 9 sales; 795 institutions reported holding it in 13F filings for Q2 2026, worth $25.1B in total; 3 superinvestors hold it, including Viking Global Investors and Soros Fund Management.
13F holders, Q3 2025
Institutional positions in Ati Inc as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 470
- +3 vs. Q2 2025
- Shares held
- 128.8M
- −3.45M (−2.6%) vs. Q2 2025
- Total value
- $10.5B
- −$931.7M (−8.2%) vs. Q2 2025
- New holders
- 90
- 152 more added
- Sold out
- 87
- 154 more reduced
6 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ATI on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 795 | $25.1B |
| Q1 2026 | 678 | $18.5B |
| Q4 2025 | 570 | $14.7B |
| Q3 2025 | 470 | $10.5B |
| Q2 2025 | 473 | $11.6B |
| Q1 2025 | 426 | $6.97B |
| Q4 2024 | 403 | $7.51B |
| Q3 2024 | 421 | $8.89B |
| Q2 2024 | 403 | $7.33B |
| Q1 2024 | 345 | $6.89B |
| Q4 2023 | 349 | $6.10B |
| Q3 2023 | 338 | $5.48B |
| Q2 2023 | 329 | $5.95B |
| Q1 2023 | 339 | $5.29B |
| Q4 2022 | 304 | $3.95B |
| Q3 2022 | 290 | $3.49B |
| Q2 2022 | 266 | $3.02B |
| Q1 2022 | 284 | $3.51B |
| Q4 2021 | 241 | $2.10B |
| Q3 2021 | 236 | $2.21B |
| Q2 2021 | 237 | $2.77B |
| Q1 2021 | 234 | $2.72B |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Ati Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Capital International Investors | 17,147,559 | $1.39B | 0.23% | +436,131+2.6% | Added |
| BlackRock, Inc. | 14,857,455 | $1.21B | 0.02% | −89,813−0.6% | Reduced |
| Vanguard Group Inc | 13,054,247 | $1.06B | 0.02% | −276,228−2.1% | Reduced |
| Capital World Investors | 7,900,572 | $642.6M | 0.09% | +1,080,201+15.8% | Added |
| State Street Corp | 6,042,244 | $491.5M | 0.02% | +415,479+7.4% | Added |
| FMR LLC | 4,899,170 | $398.5M | 0.02% | +1,485,389+43.5% | Added |
| Capital Research Global Investors | 3,224,970 | $262.3M | 0.05% | 00.0% | Unchanged |
| Invesco Ltd. | 3,151,914 | $256.4M | 0.04% | −144,710−4.4% | Reduced |
| D. E. Shaw & Co., Inc. | 3,027,102 | $246.2M | 0.20% | −486,846−13.9% | Reduced |
| Dendur Capital LP | 2,689,160 | $218.7M | 24.39% | −485,840−15.3% | Reduced |
| Geode Capital Management, LLC | 2,444,673 | $198.9M | 0.01% | +8,757+0.4% | Added |
| Dimensional Fund Advisors LP | 2,142,000 | $174.2M | 0.04% | +142,696+7.1% | Added |
| Frontier Capital Management Co LLC | 1,554,561 | $126.4M | 1.13% | −671,163−30.2% | Reduced |
| Holocene Advisors, LP | 1,534,114 | $124.8M | 0.29% | +929,333+153.7% | Added |
| Charles Schwab Investment Management Inc | 1,511,283 | $122.9M | 0.02% | +13,850+0.9% | Added |
| Morgan Stanley | 1,414,386 | $115.0M | 0.01% | +207,175+17.2% | Added |
| American Century Companies Inc | 1,374,432 | $111.8M | 0.06% | −11,684−0.8% | Reduced |
| Bowen Hanes & Co Inc | 1,329,220 | $108.1M | 2.71% | −46,340−3.4% | Reduced |
| Ameriprise Financial Inc | 1,314,923 | $107.0M | 0.02% | −794,996−37.7% | Reduced |
| Royal Bank of Canada | 1,284,686 | $104.5M | 0.02% | +349,715+37.4% | Added |
| Northern Trust Corp | 1,226,747 | $99.8M | 0.01% | −25,970−2.1% | Reduced |
| Channing Capital Management, LLC | 1,109,160 | $90.2M | 2.38% | +282,529+34.2% | Added |
| Price T Rowe Associates Inc | 1,074,149 | $87.4M | 0.01% | −64,437−5.7% | Reduced |
| Loomis Sayles & Co L P | 1,009,449 | $82.1M | 0.10% | −30,164−2.9% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 986,592 | $80.2M | 0.13% | −11,349−1.1% | Reduced |
| Fisher Asset Management, LLC | 957,648 | $77.9M | 0.03% | +329,668+52.5% | Added |
| Neuberger Berman Group LLC | 948,412 | $77.1M | 0.06% | +169,930+21.8% | Added |
| Barrow Hanley Mewhinney & Strauss LLC | 922,730 | $75.1M | 0.24% | −54,541−5.6% | Reduced |
| Bank of New York Mellon Corp | 917,922 | $74.7M | 0.01% | +25,622+2.9% | Added |
| Raymond James Financial Inc | 872,384 | $71.0M | 0.02% | −71,405−7.6% | Reduced |
| Woodline Partners LP | 747,127 | $60.8M | 0.29% | −91,494−10.9% | Reduced |
| Bank of America Corp | 733,608 | $59.7M | 0.00% | +111,112+17.8% | Added |
| Allspring Global Investments Holdings, LLC | 633,279 | $52.6M | 0.08% | +3,918+0.6% | Added |
| Voloridge Investment Management, LLC | 580,467 | $47.2M | 0.16% | −242,229−29.4% | Reduced |
| Davidson Kempner Capital Management LP | 530,000 | $43.1M | 0.60% | +400,000+307.7% | Added |
| Rokos Capital Management LLP | 527,256 | $42.9M | 0.54% | +527,256 | New |
| Marshall Wace, LLP | 513,939 | $41.8M | 0.05% | +254,547+98.1% | Added |
| BNP Paribas Arbitrage, SA | 500,001 | $40.7M | 0.03% | −220,223−30.6% | Reduced |
| Federated Hermes, Inc. | 491,849 | $40.0M | 0.07% | +43,364+9.7% | Added |
| UBS Group AG | 490,473 | $39.9M | 0.01% | −336,486−40.7% | Reduced |
| Wellington Management Group LLP | 457,300 | $37.2M | 0.01% | −10,069−2.2% | Reduced |
| Schroder Investment Management Group | 459,948 | $36.5M | 0.03% | −72,889−13.7% | Reduced |
| Nuveen, LLC | 419,407 | $34.1M | 0.01% | +229+0.1% | Added |
| Capital International Inc | 414,054 | $33.7M | 0.27% | −44,271−9.7% | Reduced |
| Gamco Investors, Inc. Et Al | 395,800 | $32.2M | 0.31% | −5,000−1.2% | Reduced |
| Segall Bryant & Hamill, LLC | 381,732 | $31.1M | 0.41% | +8,649+2.3% | Added |
| Goldman Sachs Group Inc | 376,241 | $30.6M | 0.00% | −4,164−1.1% | Reduced |
| Rhumbline Advisers | 362,218 | $29.5M | 0.02% | −7,794−2.1% | Reduced |
| UBS Asset Management Americas Inc | 360,959 | $29.4M | 0.01% | −319,952−47.0% | Reduced |
| KLCM Advisors, Inc. | 353,837 | $28.8M | 2.87% | +8,574+2.5% | Added |
| CI Private Wealth, LLC | 352,108 | $28.6M | 0.05% | +53,044+17.7% | Added |
| Millennium Management LLC | 337,591 | $27.5M | 0.02% | +48,774+16.9% | Added |
| JPMorgan Chase & Co | 333,191 | $27.1M | 0.00% | −100,478−23.2% | Reduced |
| Senator Investment Group LP | 325,000 | $26.4M | 0.98% | −425,000−56.7% | Reduced |
| Barclays PLC | 319,691 | $26.0M | 0.01% | +182,707+133.4% | Added |
| Emerald Advisers, LLC | 313,088 | $25.5M | 0.82% | −5,775−1.8% | Reduced |
| Retirement Systems of Alabama | 312,373 | $25.4M | 0.08% | +139,956+81.2% | Added |
| Point72 Asset Management, L.P. | 309,194 | $25.1M | 0.05% | −477,065−60.7% | Reduced |
| Principal Financial Group Inc | 306,143 | $24.9M | 0.01% | −13,656−4.3% | Reduced |
| ING Groep NV | 293,513 | $23.9M | 0.13% | +101,113+52.6% | Added |
| New York State Common Retirement Fund | 289,516 | $23.5M | 0.03% | +63,060+27.8% | Added |
| Tran Capital Management, L.P. | 289,414 | $23.5M | 2.81% | +289,414 | New |
| Hawk Ridge Capital Management LP | 274,600 | $22.3M | 1.06% | +83,300+43.5% | Added |
| Swiss National Bank | 273,400 | $22.2M | 0.01% | +3,800+1.4% | Added |
| Alliancebernstein L.P. | 271,768 | $22.1M | 0.01% | +70,740+35.2% | Added |
| Bank of Nova Scotia | 265,053 | $21.6M | 0.04% | +26,816+11.3% | Added |
| State of Wisconsin Investment Board | 262,411 | $21.3M | 0.05% | −4,869−1.8% | Reduced |
| Keystone Investors Pte Ltd | 261,280 | $21.3M | 2.46% | +144,441+123.6% | Added |
| Renaissance Technologies LLC | 259,992 | $21.1M | 0.03% | −221,700−46.0% | Reduced |
| California Public Employees Retirement System | 257,675 | $21.0M | 0.01% | +74,571+40.7% | Added |
| Legal & General Group Plc | 239,927 | $19.5M | 0.00% | +2,702+1.1% | Added |
| Macquarie Group Ltd | 236,788 | $19.3M | 0.02% | −30,090−11.3% | Reduced |
| Canada Pension Plan Investment Board | 236,626 | $19.2M | 0.01% | −58,474−19.8% | Reduced |
| Prudential Financial Inc | 229,312 | $18.7M | 0.02% | −73,200−24.2% | Reduced |
| Wells Fargo & Company | 220,107 | $17.9M | 0.00% | +2,629+1.2% | Added |
| Amundi | 207,512 | $17.4M | 0.01% | −62,891−23.3% | Reduced |
| Moore Capital Management, LP | 211,002 | $17.2M | 0.34% | +48,037+29.5% | Added |
| LTS One Management LP | 210,000 | $17.1M | 6.09% | −95,000−31.1% | Reduced |
| Gotham Asset Management, LLC | 197,535 | $16.1M | 0.07% | −10,384−5.0% | Reduced |
| Emerald Mutual Fund Advisers Trust | 183,555 | $14.9M | 0.77% | +4,300+2.4% | Added |
| Tudor Investment Corp Et Al | 181,797 | $14.8M | 0.10% | −409,545−69.3% | Reduced |
| Hudson Bay Capital Management LP | 154,784 | $12.6M | 0.08% | −52,019−25.2% | Reduced |
| New York State Teachers Retirement System | 150,001 | $12.2M | 0.02% | +6,573+4.6% | Added |
| J. Goldman & Co LP | 147,461 | $12.0M | 0.45% | +147,461 | New |
| Mountaineer Partners Management, LLC | 144,020 | $11.7M | 6.81% | +21,050+17.1% | Added |
| Signature Estate & Investment Advisors LLC | 143,711 | $11.7M | 0.25% | +143,711 | New |
| Jupiter Asset Management Ltd | 137,888 | $11.2M | 0.10% | +137,888 | New |
| Royce & Associates LP | 137,462 | $11.2M | 0.11% | −25,150−15.5% | Reduced |
| Bridgewater Associates, LP | 136,458 | $11.1M | 0.04% | +136,458 | New |
| California State Teachers Retirement System | 134,094 | $10.9M | 0.01% | +1,960+1.5% | Added |
| Kinetic Partners Management, LP | 132,800 | $10.8M | 0.52% | −103,100−43.7% | Reduced |
| AQR Capital Management LLC | 129,928 | $10.4M | 0.01% | +64,986+100.1% | Added |
| Bayberry Capital Partners LP | 124,100 | $10.1M | 2.91% | +124,100 | New |
| SEI Investments Co | 117,497 | $9.56M | 0.01% | −5,669−4.6% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 116,309 | $9.46M | 0.03% | +35,150+43.3% | Added |
| Deutsche Bank AG | 114,177 | $9.29M | 0.00% | +2,739+2.5% | Added |
| Citadel Advisors LLC | 112,903 | $9.18M | 0.01% | −479,572−80.9% | Reduced |
| Allianz Asset Management GmbH | 109,464 | $8.90M | 0.01% | −200−0.2% | Reduced |
| Algert Global LLC | 107,900 | $8.78M | 0.15% | −10,114−8.6% | Reduced |
| Discovery Capital Management, LLC | 105,100 | $8.55M | 0.47% | +105,100 | New |