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 2026
Institutional positions in Ati Inc as of Jun 30, 2026. 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
- 795
- +124 vs. Q1 2026
- Shares held
- 127.6M
- +300.1K (+0.2%) vs. Q1 2026
- Total value
- $25.1B
- +$6.58B (+35.6%) vs. Q1 2026
- New holders
- 178
- 306 more added
- Sold out
- 54
- 222 more reduced
7 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 2026
Shares, value and share of portfolio for each institution holding Ati Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Capital Group Private Client Services, Inc. | 41,279 | $8.14M | 0.11% | −3,070−6.9% | Reduced |
| Dymon Asia Capital (Singapore) Pte. Ltd. | 41,920 | $8.26M | 1.33% | +18,800+81.3% | Added |
| STRS Ohio | 42,744 | $8.42M | 0.03% | +39,522+1,226.6% | Added |
| State of New Jersey Common Pension Fund D | 43,715 | $8.62M | 0.03% | −3,149−6.7% | Reduced |
| Warren Averett Asset Management, LLC | 44,418 | $8.75M | 0.05% | −1,664−3.6% | Reduced |
| Asset Management One Co.,Ltd. | 44,561 | $8.79M | 0.02% | +2,346+5.6% | Added |
| Cookson Peirce & Co Inc | 45,845 | $9.04M | 0.30% | +16,896+58.4% | Added |
| Entropy Technologies, LP | 45,851 | $9.04M | 0.36% | +26,825+141.0% | Added |
| Intech Investment Management LLC | 46,083 | $9.08M | 0.08% | −13,311−22.4% | Reduced |
| Jennison Associates LLC | 46,197 | $9.11M | 0.01% | +46,197 | New |
| Franklin Resources Inc | 46,856 | $9.24M | 0.00% | +30,717+190.3% | Added |
| Creative Planning | 47,399 | $9.34M | 0.01% | +7,758+19.6% | Added |
| Quantinno Capital Management LP | 47,593 | $9.38M | 0.01% | +7,135+17.6% | Added |
| Glenmede Trust Co NA | 48,299 | $9.52M | 0.04% | +48,299 | New |
| Mutual of America Capital Management LLC | 50,696 | $9.99M | 0.10% | −1,370−2.6% | Reduced |
| Cerity Partners LLC | 50,707 | $9.99M | 0.01% | +9,059+21.8% | Added |
| Victory Capital Management Inc | 50,750 | $10.0M | 0.01% | +20,511+67.8% | Added |
| Voya Investment Management LLC | 50,893 | $10.0M | 0.01% | +3,642+7.7% | Added |
| Hudson Bay Capital Management LP | 50,919 | $10.0M | 0.05% | +23,522+85.9% | Added |
| Teachers Retirement System of the State of Kentucky | 51,026 | $10.1M | 0.07% | +780+1.6% | Added |
| Nordea Investment Management AB | 51,200 | $10.2M | 0.01% | +744+1.5% | Added |
| Vanguard Global Advisers, LLC | 54,550 | $10.8M | 0.01% | −1,118−2.0% | Reduced |
| Natixis | 55,037 | $10.8M | 0.05% | +36,735+200.7% | Added |
| Aquatic Capital Management LLC | 55,786 | $11.0M | 0.38% | +15,406+38.2% | Added |
| State of Tennessee, Treasury Department | 55,897 | $11.0M | 0.03% | −1,006−1.8% | Reduced |
| Jacobs Levy Equity Management, Inc | 56,150 | $11.1M | 0.04% | +56,150 | New |
| Channing Capital Management, LLC | 56,763 | $11.2M | 0.26% | −21,235−27.2% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 57,358 | $11.3M | 0.02% | +5,094+9.7% | Added |
| SG Capital Management LLC | 58,279 | $11.5M | 1.04% | +58,279 | New |
| Man Group plc | 59,556 | $11.7M | 0.02% | +210.0% | Added |
| Jones Financial Companies LLLP | 59,709 | $11.8M | 0.00% | +9,996+20.1% | Added |
| Mountaineer Partners Management, LLC | 60,419 | $11.9M | 8.66% | −31,365−34.2% | Reduced |
| Jupiter Topco LLC | 60,508 | $11.9M | 0.00% | +60,508 | New |
| Russell Investments Group, Ltd. | 60,573 | $11.9M | 0.01% | −48,676−44.6% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 61,253 | $12.1M | 0.09% | +3,575+6.2% | Added |
| Manufacturers Life Insurance Company, The | 64,289 | $12.7M | 0.01% | −5,279−7.6% | Reduced |
| Amalgamated Bank | 64,761 | $12.8M | 0.09% | +2,225+3.6% | Added |
| HSBC Holdings PLC | 65,083 | $12.8M | 0.01% | +36,295+126.1% | Added |
| Ieq Capital, LLC | 66,949 | $13.2M | 0.06% | +15,265+29.5% | Added |
| Globeflex Capital L P | 67,186 | $13.2M | 1.69% | −1,975−2.9% | Reduced |
| Treasurer of the State of North Carolina | 68,497 | $13.5M | 0.03% | +10,827+18.8% | Added |
| New York State Common Retirement Fund | 69,443 | $13.7M | 0.02% | +6,006+9.5% | Added |
| Mengis Capital Management, Inc. | 69,614 | $13.7M | 2.09% | −1,038−1.5% | Reduced |
| Trexquant Investment LP | 69,839 | $13.8M | 0.09% | +69,839 | New |
| Agf Management Ltd | 70,510 | $13.9M | 0.05% | +70,510 | New |
| MetLife Investment Management | 71,003 | $14.0M | 0.06% | +4,187+6.3% | Added |
| Tema ETFs LLC | 72,045 | $14.2M | 0.46% | −9,216−11.3% | Reduced |
| Premier Fund Managers Ltd | 71,928 | $14.2M | 1.29% | +71,928 | New |
| ExodusPoint Capital Management, LP | 73,139 | $14.4M | 0.13% | −15,073−17.1% | Reduced |
| Soros Fund Management LLCSuperinvestorSoros Fund Management | 73,339 | $14.5M | 0.19% | +20,507+38.8% | Added |
| RPg Family Wealth Advisory, LLC | 76,473 | $15.1M | 2.51% | +32,370+73.4% | Added |
| Walleye Capital LLC | 77,381 | $15.3M | 0.07% | −68,728−47.0% | Reduced |
| Northwestern Mutual Wealth Management Co | 78,629 | $15.5M | 0.01% | −679−0.9% | Reduced |
| CI Private Wealth, LLC | 78,728 | $15.5M | 0.02% | +67,120+578.2% | Added |
| Senator Investment Group LP | 80,000 | $15.8M | 0.58% | −65,000−44.8% | Reduced |
| Nearwater Capital Markets, Ltd | 80,000 | $15.8M | 0.27% | +80,000 | New |
| Great West Life Assurance Co | 80,875 | $15.9M | 0.03% | +2,362+3.0% | Added |
| Wellington Management Group LLP | 81,401 | $16.0M | 0.00% | +5,656+7.5% | Added |
| Pinnbrook Capital Management LP | 82,081 | $16.2M | 2.69% | +75,181+1,089.6% | Added |
| Credit Agricole S A | 83,022 | $16.4M | 0.04% | +17,000+25.7% | Added |
| Signature Estate & Investment Advisors LLC | 83,258 | $16.4M | 0.30% | −16,694−16.7% | Reduced |
| Mariner, LLC | 84,816 | $16.7M | 0.02% | +12,329+17.0% | Added |
| TD Asset Management Inc | 85,793 | $16.9M | 0.01% | +40,224+88.3% | Added |
| Engineers Gate Manager LP | 87,049 | $17.2M | 0.22% | +18,104+26.3% | Added |
| Royce & Associates LP | 89,102 | $17.6M | 0.14% | −9,010−9.2% | Reduced |
| Tran Capital Management, L.P. | 89,993 | $17.7M | 2.04% | −869−1.0% | Reduced |
| Keystone Investors Pte Ltd | 90,612 | $17.9M | 0.96% | +90,612 | New |
| Empowered Funds, LLC | 91,374 | $18.0M | 0.09% | +35,404+63.3% | Added |
| Toroso Investments, LLC | 91,436 | $18.0M | 0.04% | −12,230−11.8% | Reduced |
| Natixis Advisors, L.P. | 91,589 | $18.1M | 0.02% | −32,688−26.3% | Reduced |
| Guggenheim Capital LLC | 93,029 | $18.3M | 0.12% | −11,332−10.9% | Reduced |
| Susquehanna Fundamental Investments, LLC | 95,495 | $18.8M | 0.35% | +12,709+15.4% | Added |
| SEI Investments Co | 95,963 | $18.9M | 0.02% | +5,918+6.6% | Added |
| Oribel Capital Management, LP | 96,500 | $19.0M | 1.58% | +96,500 | New |
| Worldquant Millennium Advisors LLC | 96,891 | $19.1M | 0.07% | +38,881+67.0% | Added |
| Public Employees Retirement Association of Colorado | 97,219 | $19.2M | 0.07% | +84,200+646.7% | Added |
| Jump Financial, LLC | 99,067 | $19.5M | 0.17% | +95,548+2,715.2% | Added |
| FACT Capital, LP | 99,684 | $19.6M | 11.04% | −3,418−3.3% | Reduced |
| Stifel Financial Corp | 101,140 | $19.9M | 0.02% | +8,521+9.2% | Added |
| State Board of Administration of Florida Retirement System | 105,723 | $20.8M | 0.03% | +7,193+7.3% | Added |
| Aventail Capital Group, LP | 110,892 | $21.9M | 1.25% | −74,420−40.2% | Reduced |
| Advisors Asset Management, Inc. | 111,122 | $21.9M | 0.33% | +8,617+8.4% | Added |
| Algert Global LLC | 112,780 | $22.2M | 0.26% | +5,526+5.2% | Added |
| Bridgewater Associates, LP | 114,940 | $22.7M | 0.09% | +92,990+423.6% | Added |
| Vanguard Asset Management, Ltd | 115,324 | $22.7M | 0.02% | +10,500+10.0% | Added |
| Sanctuary Advisors, LLC | 117,432 | $23.1M | 0.11% | +1,816+1.6% | Added |
| Brevan Howard Capital Management LP | 117,553 | $23.2M | 0.33% | +54,843+87.5% | Added |
| New York State Teachers Retirement System | 120,661 | $23.8M | 0.04% | −13,981−10.4% | Reduced |
| Lord, Abbett & Co. LLC | 124,549 | $24.5M | 0.07% | −57,500−31.6% | Reduced |
| Epoch Investment Partners, Inc. | 128,556 | $25.3M | 0.14% | +42,955+50.2% | Added |
| HRT Financial LP | 131,009 | $25.8M | 0.05% | −121,889−48.2% | Reduced |
| Barclays PLC | 139,775 | $27.5M | 0.01% | +40,447+40.7% | Added |
| First Trust Advisors LP | 148,215 | $29.2M | 0.02% | +55,068+59.1% | Added |
| Tudor Investment Corp Et Al | 148,638 | $29.3M | 0.12% | +59,703+67.1% | Added |
| Voleon Capital Management LP | 154,311 | $30.4M | 0.55% | +55,388+56.0% | Added |
| California State Teachers Retirement System | 158,400 | $31.2M | 0.03% | +639+0.4% | Added |
| Deutsche Bank AG | 162,592 | $32.0M | 0.01% | +54,703+50.7% | Added |
| State of Wisconsin Investment Board | 174,589 | $34.4M | 0.07% | −27,374−13.6% | Reduced |
| Schonfeld Strategic Advisors LLC | 177,751 | $35.0M | 0.19% | +154,208+655.0% | Added |
| Susquehanna International Group, LLP | 178,268 | $35.1M | 0.03% | +142,919+404.3% | Added |