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, Q1 2025
Institutional positions in Ati Inc as of Mar 31, 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
- 426
- +29 vs. Q4 2024
- Shares held
- 134.1M
- −1.96M (−1.4%) vs. Q4 2024
- Total value
- $6.97B
- −$518.0M (−6.9%) vs. Q4 2024
- New holders
- 89
- 161 more added
- Sold out
- 60
- 119 more reduced
6 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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, Q1 2025
Shares, value and share of portfolio for each institution holding Ati Inc; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Capital International Investors | 16,891,465 | $878.6M | 0.17% | +989,904+6.2% | Added |
| Vanguard Group Inc | 13,896,542 | $723.0M | 0.01% | −1,438,867−9.4% | Reduced |
| BlackRock, Inc. | 13,113,928 | $682.3M | 0.01% | −4,724,355−26.5% | Reduced |
| Capital World Investors | 6,982,174 | $363.3M | 0.06% | +106,598+1.6% | Added |
| State Street Corp | 5,768,232 | $300.1M | 0.01% | −202,261−3.4% | Reduced |
| Invesco Ltd. | 4,850,439 | $252.4M | 0.05% | +153,939+3.3% | Added |
| FMR LLC | 4,228,052 | $220.0M | 0.01% | −2,393,831−36.2% | Reduced |
| Dendur Capital LP | 3,567,000 | $185.6M | 22.64% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 2,917,656 | $151.8M | 0.04% | −237,821−7.5% | Reduced |
| Dimensional Fund Advisors LP | 2,617,314 | $136.2M | 0.03% | +59,811+2.3% | Added |
| Frontier Capital Management Co LLC | 2,602,258 | $135.4M | 1.48% | −456,293−14.9% | Reduced |
| Geode Capital Management, LLC | 2,378,033 | $123.8M | 0.01% | +227,829+10.6% | Added |
| D. E. Shaw & Co., Inc. | 1,639,294 | $85.3M | 0.10% | +175,681+12.0% | Added |
| Channing Capital Management, LLC | 1,553,796 | $80.8M | 2.44% | −120,665−7.2% | Reduced |
| Charles Schwab Investment Management Inc | 1,492,516 | $77.7M | 0.01% | −70,546−4.5% | Reduced |
| Norges Bank | 1,469,212 | $76.4M | 0.01% | −75,968−4.9% | Reduced |
| American Century Companies Inc | 1,422,116 | $74.0M | 0.05% | +60,651+4.5% | Added |
| Bowen Hanes & Co Inc | 1,371,335 | $71.4M | 1.98% | +4,420+0.3% | Added |
| Millennium Management LLC | 1,366,061 | $71.1M | 0.07% | +1,266,124+1,266.9% | Added |
| Barrow Hanley Mewhinney & Strauss LLC | 1,315,151 | $68.4M | 0.25% | +10,996+0.8% | Added |
| Northern Trust Corp | 1,262,761 | $65.7M | 0.01% | +316,090+33.4% | Added |
| Loomis Sayles & Co L P | 1,232,297 | $64.1M | 0.09% | −26,930−2.1% | Reduced |
| Senator Investment Group LP | 1,212,500 | $63.1M | 3.35% | +493,944+68.7% | Added |
| Neuberger Berman Group LLC | 1,132,296 | $58.9M | 0.05% | +296,634+35.5% | Added |
| Morgan Stanley | 1,102,459 | $57.4M | 0.00% | −425,732−27.9% | Reduced |
| Citadel Advisors LLC | 1,066,398 | $55.5M | 0.05% | +675,648+172.9% | Added |
| Point72 Asset Management, L.P. | 1,028,660 | $53.5M | 0.15% | +230,846+28.9% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 1,011,879 | $52.6M | 0.11% | +56,609+5.9% | Added |
| Bank of America Corp | 944,635 | $49.1M | 0.00% | +632,281+202.4% | Added |
| Woodline Partners LP | 944,216 | $49.1M | 0.32% | −47,525−4.8% | Reduced |
| Price T Rowe Associates Inc | 938,929 | $48.9M | 0.01% | −190,033−16.8% | Reduced |
| Bank of New York Mellon Corp | 902,200 | $46.9M | 0.01% | +11,048+1.2% | Added |
| Forest Avenue Capital Management LP | 862,334 | $44.9M | 6.13% | +862,334 | New |
| Raymond James Financial Inc | 845,252 | $44.0M | 0.02% | +43,024+5.4% | Added |
| Allspring Global Investments Holdings, LLC | 804,929 | $42.3M | 0.07% | −27,117−3.3% | Reduced |
| UBS Asset Management Americas Inc | 658,195 | $34.2M | 0.01% | +61,021+10.2% | Added |
| Fisher Asset Management, LLC | 651,492 | $33.9M | 0.01% | −12,237−1.8% | Reduced |
| Goldman Sachs Group Inc | 633,948 | $33.0M | 0.01% | +209,480+49.4% | Added |
| Soros Fund Management LLCSuperinvestorSoros Fund Management | 613,884 | $31.9M | 0.57% | +222,383+56.8% | Added |
| Marshall Wace, LLP | 608,584 | $31.7M | 0.04% | −90,487−12.9% | Reduced |
| Capital Research Global Investors | 602,959 | $31.4M | 0.01% | +602,959 | New |
| Emerald Advisers, LLC | 587,250 | $30.6M | 1.38% | −14,789−2.5% | Reduced |
| Jane Street Group, LLC | 584,391 | $30.4M | 0.05% | +566,937+3,248.2% | Added |
| Freestone Grove Partners LP | 543,915 | $28.3M | 0.29% | +543,915 | New |
| NorthRock Partners, LLC | 540,531 | $28.1M | 0.95% | +207,177+62.1% | Added |
| Capital International Inc | 524,100 | $27.3M | 0.33% | −25,616−4.7% | Reduced |
| Wellington Management Group LLP | 518,193 | $27.0M | 0.01% | +66,968+14.8% | Added |
| Macquarie Group Ltd | 499,186 | $26.0M | 0.03% | −251,318−33.5% | Reduced |
| KLCM Advisors, Inc. | 470,068 | $24.5M | 2.86% | +55,484+13.4% | Added |
| Federated Hermes, Inc. | 443,023 | $23.1M | 0.05% | +13,478+3.1% | Added |
| Schroder Investment Management Group | 439,217 | $22.4M | 0.02% | +46,944+12.0% | Added |
| Trexquant Investment LP | 419,126 | $21.8M | 0.25% | +419,126 | New |
| Gamco Investors, Inc. Et Al | 401,700 | $20.9M | 0.23% | −4,000−1.0% | Reduced |
| JPMorgan Chase & Co | 380,541 | $19.8M | 0.00% | +142,080+59.6% | Added |
| New York State Common Retirement Fund | 362,892 | $18.9M | 0.03% | −19,597−5.1% | Reduced |
| Rhumbline Advisers | 362,532 | $18.9M | 0.02% | +58,241+19.1% | Added |
| British Columbia Investment Management Corp | 358,992 | $18.7M | 0.12% | +91,619+34.3% | Added |
| Capital Group Private Client Services, Inc. | 352,528 | $18.3M | 0.18% | +3,492+1.0% | Added |
| Emerald Mutual Fund Advisers Trust | 349,023 | $18.2M | 1.29% | −20,070−5.4% | Reduced |
| Principal Financial Group Inc | 327,220 | $17.0M | 0.01% | −362,995−52.6% | Reduced |
| Bridgewater Associates, LP | 318,044 | $16.5M | 0.08% | +241,312+314.5% | Added |
| HRT Financial LP | 310,486 | $16.2M | 0.10% | +310,486 | New |
| CI Private Wealth, LLC | 304,809 | $15.9M | 0.03% | −12,793−4.0% | Reduced |
| State of Wisconsin Investment Board | 304,397 | $15.8M | 0.04% | +66,818+28.1% | Added |
| Prudential Financial Inc | 264,241 | $14.8M | 0.02% | +121,589+85.2% | Added |
| Swiss National Bank | 276,300 | $14.4M | 0.01% | +31,500+12.9% | Added |
| Hudson Bay Capital Management LP | 272,145 | $14.2M | 0.09% | +70,532+35.0% | Added |
| Royce & Associates LP | 271,222 | $14.1M | 0.15% | +22,320+9.0% | Added |
| Diameter Capital Partners LP | 270,000 | $14.0M | 3.34% | +140,000+107.7% | Added |
| ExodusPoint Capital Management, LP | 262,878 | $13.7M | 0.18% | +245,936+1,451.6% | Added |
| Legal & General Group Plc | 255,175 | $13.3M | 0.00% | −145,908−36.4% | Reduced |
| Wells Fargo & Company | 253,468 | $13.2M | 0.00% | −11,283−4.3% | Reduced |
| Cubist Systematic Strategies, LLC | 248,963 | $13.0M | 0.17% | +248,963 | New |
| Tudor Investment Corp Et Al | 228,272 | $11.9M | 0.11% | +228,272 | New |
| Schonfeld Strategic Advisors LLC | 224,182 | $11.7M | 0.08% | +148,814+197.4% | Added |
| Alta Fox Capital Management, LLC | 216,300 | $11.3M | 4.46% | +216,300 | New |
| Alliancebernstein L.P. | 216,148 | $11.2M | 0.00% | −200,602−48.1% | Reduced |
| Engineers Gate Manager LP | 209,885 | $10.9M | 0.18% | +199,468+1,914.8% | Added |
| Nuveen, LLC | 328,384 | $10.9M | 0.00% | +328,384 | New |
| Canada Pension Plan Investment Board | 200,400 | $10.4M | 0.01% | −2,408−1.2% | Reduced |
| First Trust Advisors LP | 187,980 | $9.78M | 0.01% | −77,605−29.2% | Reduced |
| Gotham Asset Management, LLC | 186,914 | $9.73M | 0.08% | +8,492+4.8% | Added |
| Moore Capital Management, LP | 186,849 | $9.72M | 0.33% | +127,032+212.4% | Added |
| Mountaineer Partners Management, LLC | 181,375 | $9.44M | 9.03% | −1,295−0.7% | Reduced |
| Segall Bryant & Hamill, LLC | 178,565 | $9.29M | 0.14% | +8,169+4.8% | Added |
| Barclays PLC | 176,528 | $9.18M | 0.00% | +117,569+199.4% | Added |
| Davidson Kempner Capital Management LP | 175,000 | $9.11M | 0.13% | +175,000 | New |
| Renaissance Technologies LLC | 173,892 | $9.05M | 0.01% | −4,300−2.4% | Reduced |
| Retirement Systems of Alabama | 173,614 | $9.03M | 0.04% | +173,614 | New |
| UBS Group AG | 168,152 | $8.75M | 0.00% | +41,457+32.7% | Added |
| Corebridge Financial, Inc. | 157,425 | $8.19M | 0.05% | +151,538+2,574.1% | Added |
| California Public Employees Retirement System | 155,490 | $8.09M | 0.01% | +206+0.1% | Added |
| SEI Investments Co | 148,023 | $7.70M | 0.01% | −22,943−13.4% | Reduced |
| Comerica Bank | 146,994 | $7.65M | 0.03% | −39,755−21.3% | Reduced |
| New York State Teachers Retirement System | 144,155 | $7.50M | 0.02% | −13,673−8.7% | Reduced |
| Two Sigma Investments, LP | 137,448 | $7.15M | 0.02% | −99,502−42.0% | Reduced |
| California State Teachers Retirement System | 131,107 | $6.82M | 0.01% | +14,717+12.6% | Added |
| NEOS Investment Management LLC | 116,226 | $6.05M | 0.11% | +38,610+49.7% | Added |
| Tema ETFs LLC | 116,226 | $6.05M | 1.81% | +38,610+49.7% | Added |
| Manufacturers Life Insurance Company, The | 112,375 | $5.85M | 0.01% | +83,565+290.1% | Added |