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, Q2 2025
Institutional positions in Ati Inc as of Jun 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
- 473
- +52 vs. Q1 2025
- Shares held
- 134.0M
- −2.19K (0.0%) vs. Q1 2025
- Total value
- $11.6B
- +$4.59B (+65.9%) vs. Q1 2025
- New holders
- 112
- 124 more added
- Sold out
- 60
- 187 more reduced
5 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding Ati Inc; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Mountaineer Partners Management, LLC | 122,970 | $10.6M | 7.02% | −58,405−32.2% | Reduced |
| Algert Global LLC | 118,014 | $10.2M | 0.21% | +10,919+10.2% | Added |
| Keystone Investors Pte Ltd | 116,839 | $10.1M | 2.08% | +116,839 | New |
| Comerica Bank | 115,452 | $9.97M | 0.04% | −31,542−21.5% | Reduced |
| Trexquant Investment LP | 114,228 | $9.86M | 0.11% | −304,898−72.7% | Reduced |
| Deutsche Bank AG | 111,438 | $9.62M | 0.00% | +102,553+1,154.2% | Added |
| Allianz Asset Management GmbH | 109,664 | $9.47M | 0.01% | +12,733+13.1% | Added |
| Manufacturers Life Insurance Company, The | 105,718 | $9.13M | 0.01% | −6,657−5.9% | Reduced |
| Jones Road Capital Management, L.P. | 99,877 | $8.62M | 8.39% | −10,000−9.1% | Reduced |
| Scopus Asset Management, L.P. | 98,466 | $8.50M | 0.23% | +98,466 | New |
| Concentric Capital Strategies, LP | 90,099 | $7.78M | 0.44% | +90,099 | New |
| Advisors Asset Management, Inc. | 88,992 | $7.68M | 0.14% | +6,226+7.5% | Added |
| State Board of Administration of Florida Retirement System | 88,728 | $7.66M | 0.01% | +498+0.6% | Added |
| Citigroup Inc | 85,812 | $7.41M | 0.01% | +32,231+60.2% | Added |
| Twinbeech Capital LP | 81,624 | $7.05M | 0.16% | +39,126+92.1% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 81,159 | $7.01M | 0.02% | +81,159 | New |
| Mengis Capital Management, Inc. | 80,727 | $6.97M | 1.48% | −2,180−2.6% | Reduced |
| Great West Life Assurance Co | 80,294 | $6.94M | 0.01% | −23,678−22.8% | Reduced |
| Candelo Capital Management LP | 80,273 | $6.93M | 6.64% | +80,273 | New |
| MetLife Investment Management | 75,942 | $6.56M | 0.04% | −2,920−3.7% | Reduced |
| Natixis Advisors, L.P. | 75,649 | $6.53M | 0.01% | +11,311+17.6% | Added |
| Stifel Financial Corp | 74,767 | $6.46M | 0.01% | +6,584+9.7% | Added |
| Warren Averett Asset Management, LLC | 73,910 | $6.38M | 0.07% | −473−0.6% | Reduced |
| NBW Capital LLC | 73,557 | $6.35M | 1.37% | −826−1.1% | Reduced |
| NEOS Investment Management LLC | 70,654 | $6.10M | 0.08% | −45,572−39.2% | Reduced |
| Tema ETFs LLC | 70,654 | $6.10M | 1.62% | −45,572−39.2% | Reduced |
| Mutual of America Capital Management LLC | 70,155 | $6.06M | 0.07% | −3,260−4.4% | Reduced |
| Teachers Retirement System of the State of Kentucky | 66,987 | $5.78M | 0.05% | −5,455−7.5% | Reduced |
| Guggenheim Capital LLC | 65,494 | $5.65M | 0.05% | +4,119+6.7% | Added |
| Treasurer of the State of North Carolina | 65,333 | $5.64M | 0.02% | +8,873+15.7% | Added |
| AQR Capital Management LLC | 64,942 | $5.61M | 0.00% | +10,911+20.2% | Added |
| Amalgamated Bank | 64,067 | $5.53M | 0.04% | −181−0.3% | Reduced |
| State of Tennessee, Treasury Department | 63,107 | $5.45M | 0.02% | −10,773−14.6% | Reduced |
| EAM Global Investors LLC | 62,549 | $5.40M | 1.40% | +62,549 | New |
| PDT Partners, LLC | 61,173 | $5.28M | 0.30% | −37,189−37.8% | Reduced |
| Thrivent Financial for Lutherans | 60,779 | $5.25M | 0.01% | −229−0.4% | Reduced |
| Roubaix Capital, LLC | 60,633 | $5.24M | 2.51% | −15,692−20.6% | Reduced |
| EAM Investors, LLC | 60,633 | $5.24M | 0.79% | +60,633 | New |
| Janus Henderson Group PLC | 60,354 | $5.21M | 0.00% | −2,800−4.4% | Reduced |
| Jefferies Financial Group Inc. | 58,065 | $5.01M | 0.08% | −14,730−20.2% | Reduced |
| The PNC Financial Services Group, Inc. | 57,857 | $5.00M | 0.00% | −18,063−23.8% | Reduced |
| Edgestream Partners, L.P. | 56,843 | $4.91M | 0.14% | +5,536+10.8% | Added |
| LPL Financial LLC | 55,382 | $4.78M | 0.00% | −1,426−2.5% | Reduced |
| Covea Finance | 55,300 | $4.77M | 0.18% | −4,700−7.8% | Reduced |
| National Bank of Canada | 55,000 | $4.75M | 0.01% | +55,000 | New |
| Police & Firemen's Retirement System of New Jersey | 53,226 | $4.60M | 0.04% | +8,711+19.6% | Added |
| Globeflex Capital L P | 51,557 | $4.45M | 0.37% | +24,961+93.9% | Added |
| Voya Investment Management LLC | 51,153 | $4.42M | 0.00% | −58,181−53.2% | Reduced |
| Envestnet Asset Management Inc | 49,642 | $4.29M | 0.00% | −6,896−12.2% | Reduced |
| State of New Jersey Common Pension Fund D | 48,306 | $4.17M | 0.02% | 00.0% | Unchanged |
| Yousif Capital Management, LLC | 48,019 | $4.15M | 0.04% | −795−1.6% | Reduced |
| Pathstone Holdings, LLC | 47,814 | $4.13M | 0.02% | −15,063−24.0% | Reduced |
| Farmers & Merchants Investments Inc | 47,809 | $4.13M | 0.12% | −7,013−12.8% | Reduced |
| Point72 Hong Kong Ltd | 46,482 | $4.01M | 0.28% | +46,482 | New |
| Public Employees Retirement System of Ohio | 44,195 | $3.82M | 0.01% | +5,466+14.1% | Added |
| Estate Counselors, LLC | 43,790 | $3.78M | 0.37% | +43,790 | New |
| Albar Capital Partners LLP | 42,859 | $3.70M | 0.63% | +42,859 | New |
| Arizona State Retirement System | 41,167 | $3.55M | 0.02% | +252+0.6% | Added |
| Engineers Gate Manager LP | 41,128 | $3.55M | 0.04% | −168,757−80.4% | Reduced |
| Verition Fund Management LLC | 39,870 | $3.44M | 0.02% | −41,431−51.0% | Reduced |
| Louisiana State Employees Retirement System | 39,700 | $3.43M | 0.06% | −300−0.8% | Reduced |
| Buckingham Strategic Partners | 39,625 | $3.42M | 0.05% | −6,393−13.9% | Reduced |
| Brevan Howard Capital Management LP | 39,452 | $3.41M | 0.04% | −50,360−56.1% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 39,221 | $3.39M | 0.01% | −13,174−25.1% | Reduced |
| Rafferty Asset Management, LLC | 39,022 | $3.37M | 0.01% | +39,022 | New |
| Ensign Peak Advisors, Inc | 38,941 | $3.36M | 0.01% | −6,950−15.1% | Reduced |
| FORA Capital, LLC | 38,127 | $3.29M | 0.37% | +38,127 | New |
| New Age Alpha Advisors, LLC | 37,780 | $3.26M | 0.14% | +30,485+417.9% | Added |
| XTX Topco Ltd | 37,729 | $3.26M | 0.14% | −5,714−13.2% | Reduced |
| Van Eck Associates Corp | 36,910 | $3.19M | 0.00% | −32,536−46.9% | Reduced |
| Graphene Investments SAS | 36,900 | $3.19M | 2.08% | −16,500−30.9% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 36,245 | $3.13M | 0.02% | +2,148+6.3% | Added |
| HSBC Holdings PLC | 35,684 | $3.10M | 0.00% | +30,962+655.7% | Added |
| Register Financial Advisors LLC | 35,853 | $3.10M | 1.35% | −15,400−30.0% | Reduced |
| Los Angeles Capital Management LLC | 35,789 | $3.09M | 0.01% | +35,789 | New |
| Nebula Research & Development LLC | 34,259 | $2.96M | 0.25% | +18,479+117.1% | Added |
| Sapience Investments, LLC | 34,043 | $2.94M | 1.96% | −12,144−26.3% | Reduced |
| State of Michigan Retirement System | 33,900 | $2.93M | 0.02% | −200−0.6% | Reduced |
| ExodusPoint Capital Management, LP | 33,821 | $2.92M | 0.04% | −229,057−87.1% | Reduced |
| Bank of Montreal | 33,648 | $2.91M | 0.00% | −2,376−6.6% | Reduced |
| Teacher Retirement System of Texas | 31,931 | $2.76M | 0.01% | +8,041+33.7% | Added |
| Northwestern Mutual Investment Management Company, LLC | 31,496 | $2.72M | 0.04% | −220−0.7% | Reduced |
| Envestnet Portfolio Solutions, Inc. | 31,150 | $2.69M | 0.01% | +3,098+11.0% | Added |
| Capstone Investment Advisors, LLC | 31,000 | $2.68M | 0.02% | +31,000 | New |
| Janney Montgomery Scott LLC | 30,405 | $2.63M | 0.01% | −1,828−5.7% | Reduced |
| KLP Kapitalforvaltning AS | 29,000 | $2.50M | 0.01% | +1,400+5.1% | Added |
| Oregon Public Employees Retirement Fund | 28,863 | $2.49M | 0.04% | +963+3.5% | Added |
| New Mexico Educational Retirement Board | 28,800 | $2.49M | 0.08% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 27,620 | $2.38M | 0.08% | −676−2.4% | Reduced |
| Intech Investment Management LLC | 26,500 | $2.29M | 0.02% | −31,958−54.7% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 25,369 | $2.19M | 0.00% | −7,789−23.5% | Reduced |
| HighTower Advisors, LLC | 24,112 | $2.08M | 0.00% | −2,244−8.5% | Reduced |
| SG Americas Securities, LLC | 23,636 | $2.04M | 0.01% | +160+0.7% | Added |
| Victory Capital Management Inc | 23,383 | $2.02M | 0.00% | −7,969−25.4% | Reduced |
| Huntington National Bank | 23,250 | $2.01M | 0.01% | −42−0.2% | Reduced |
| Centiva Capital, LP | 22,954 | $1.98M | 0.13% | −10,679−31.8% | Reduced |
| Creative Planning | 22,658 | $1.96M | 0.00% | −1,195−5.0% | Reduced |
| Quantbot Technologies LP | 22,127 | $1.91M | 0.05% | +22,127 | New |
| Pictet Asset Management Holding SA | 21,970 | $1.90M | 0.00% | −310−1.4% | Reduced |
| Jackson Creek Investment Advisors LLC | 21,468 | $1.85M | 0.50% | −4,222−16.4% | Reduced |