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, Q4 2025
Institutional positions in Ati Inc as of Dec 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
- 570
- +109 vs. Q3 2025
- Shares held
- 128.3M
- −445.7K (−0.3%) vs. Q3 2025
- Total value
- $14.7B
- +$4.26B (+40.7%) vs. Q3 2025
- New holders
- 145
- 169 more added
- Sold out
- 36
- 181 more reduced
9 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Ati Inc; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Graphene Investments SAS | 28,400 | $3.26M | 2.04% | −12,000−29.7% | Reduced |
| HighTower Advisors, LLC | 27,722 | $3.18M | 0.00% | +1,154+4.3% | Added |
| Northwestern Mutual Wealth Management Co | 27,536 | $3.16M | 0.00% | +4,262+18.3% | Added |
| CWM, LLC | 27,312 | $3.13M | 0.01% | +25,430+1,351.2% | Added |
| Oregon Public Employees Retirement Fund | 27,093 | $3.11M | 0.04% | −670−2.4% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 25,648 | $3.10M | 0.00% | +8,939+53.5% | Added |
| Erste Asset Management GmbH | 25,780 | $3.01M | 0.03% | +18,600+259.1% | Added |
| Susquehanna Portfolio Strategies, LLC | 26,133 | $3.00M | 0.05% | 00.0% | Unchanged |
| Bank of Montreal | 26,087 | $2.99M | 0.00% | −1,166−4.3% | Reduced |
| Assenagon Asset Management S.A. | 25,818 | $2.96M | 0.00% | −41,815−61.8% | Reduced |
| Mercer Global Advisors Inc | 25,726 | $2.95M | 0.00% | +11,933+86.5% | Added |
| Panagora Asset Management Inc | 25,436 | $2.92M | 0.01% | +19,458+325.5% | Added |
| Hennion & Walsh Asset Management, Inc. | 25,214 | $2.89M | 0.10% | +10,004+65.8% | Added |
| Los Angeles Capital Management LLC | 28,536 | $2.89M | 0.01% | −2,079−6.8% | Reduced |
| Ameritas Investment Partners, Inc. | 25,130 | $2.88M | 0.09% | −937−3.6% | Reduced |
| Jefferies Financial Group Inc. | 23,353 | $2.68M | 0.02% | −35,987−60.6% | Reduced |
| Huntington National Bank | 23,145 | $2.66M | 0.02% | −297−1.3% | Reduced |
| Advisor Group Holdings, Inc. | 20,907 | $2.40M | 0.00% | +309+1.5% | Added |
| Pictet Asset Management Holding SA | 20,752 | $2.38M | 0.00% | +519+2.6% | Added |
| Victory Capital Management Inc | 20,429 | $2.34M | 0.00% | −288−1.4% | Reduced |
| OP Asset Management Ltd | 20,399 | $2.34M | 0.03% | −3,167−13.4% | Reduced |
| Teacher Retirement System of Texas | 20,214 | $2.32M | 0.01% | −12,835−38.8% | Reduced |
| Hantz Financial Services, Inc. | 20,041 | $2.30M | 0.03% | +1,054+5.6% | Added |
| Marathon Partners Equity Management, LLC | 20,000 | $2.30M | 2.28% | −7,500−27.3% | Reduced |
| Kovitz Investment Group Partners, LLC | 19,952 | $2.29M | 0.05% | −9,027−31.2% | Reduced |
| Freemont Management S.A. | 19,900 | $2.28M | 0.45% | +13,200+197.0% | Added |
| Nomura Holdings Inc | 19,327 | $2.22M | 0.01% | +4,875+33.7% | Added |
| Mackenzie Financial Corp | 18,849 | $2.19M | 0.00% | +9,090+93.1% | Added |
| Toroso Investments, LLC | 19,027 | $2.18M | 0.01% | +11,526+153.7% | Added |
| Paradigm Capital Management Inc | 18,000 | $2.07M | 0.09% | 00.0% | Unchanged |
| Toronto Dominion Bank | 17,780 | $2.04M | 0.00% | +17,780 | New |
| ExodusPoint Capital Management, LP | 17,634 | $2.02M | 0.02% | +17,634 | New |
| Advisory Services Network, LLC | 16,941 | $1.94M | 0.03% | −798−4.5% | Reduced |
| Atria Investments LLC | 16,887 | $1.94M | 0.02% | +714+4.4% | Added |
| Raiffeisen Bank International AG | 16,000 | $1.86M | 0.02% | 00.0% | Unchanged |
| JustInvest LLC | 16,166 | $1.86M | 0.02% | +2,700+20.1% | Added |
| Pacer Advisors, Inc. | 16,147 | $1.85M | 0.00% | −2,008−11.1% | Reduced |
| RMB Capital Management, LLC | 16,107 | $1.85M | 0.03% | +4,267+36.0% | Added |
| Wiley Bros.-Aintree Capital, LLC | 16,107 | $1.85M | 0.01% | +6,368+65.4% | Added |
| Bragg Financial Advisors, Inc | 15,985 | $1.83M | 0.06% | +611+4.0% | Added |
| NVWM, LLC | 15,885 | $1.82M | 0.40% | −398−2.4% | Reduced |
| Dockside LLC | 15,844 | $1.82M | 0.47% | +15,844 | New |
| PEAK6 LLC | 15,843 | $1.82M | 0.05% | +15,843 | New |
| Quadrant Capital Group LLC | 15,773 | $1.81M | 0.05% | +289+1.9% | Added |
| Jones Financial Companies LLLP | 15,619 | $1.79M | 0.00% | +1,579+11.2% | Added |
| Ensign Peak Advisors, Inc | 15,565 | $1.79M | 0.00% | −10,576−40.5% | Reduced |
| Cetera Investment Advisers | 15,183 | $1.74M | 0.00% | +8,413+124.3% | Added |
| Dayah Capital LLC | 15,000 | $1.72M | 1.16% | +15,000 | New |
| Knights of Columbus Asset Advisors LLC | 14,796 | $1.70M | 0.10% | −211−1.4% | Reduced |
| Trexquant Investment LP | 14,551 | $1.67M | 0.01% | +14,551 | New |
| Cambridge Investment Research Advisors, Inc. | 14,275 | $1.64M | 0.00% | +428+3.1% | Added |
| Thoroughbred Financial Services, LLC | 13,953 | $1.60M | 0.09% | +2,040+17.1% | Added |
| Empowered Funds, LLC | 13,834 | $1.59M | 0.03% | +13,834 | New |
| FourThought Financial Partners, LLC | 13,827 | $1.59M | 0.13% | −555−3.9% | Reduced |
| H Squared Management LP | 13,800 | $1.58M | 1.36% | +13,800 | New |
| Gabelli Funds LLC | 13,696 | $1.57M | 0.01% | −804−5.5% | Reduced |
| Commonwealth Equity Services, LLC | 13,670 | $1.57M | 0.00% | −1,839−11.9% | Reduced |
| Havemeyer Place LP | 13,632 | $1.56M | 0.31% | +13,632 | New |
| State of Alaska, Department of Revenue | 13,496 | $1.55M | 0.02% | −1,320−8.9% | Reduced |
| Xponance, Inc. | 13,420 | $1.54M | 0.01% | −1,912−12.5% | Reduced |
| Arete Wealth Advisors, LLC | 13,236 | $1.52M | 0.11% | +13,236 | New |
| Public Employees Retirement Association of Colorado | 13,019 | $1.49M | 0.01% | 00.0% | Unchanged |
| Fruth Investment Management | 12,750 | $1.46M | 0.39% | 00.0% | Unchanged |
| Old West Investment Management, LLC | 12,555 | $1.44M | 0.26% | +12,555 | New |
| Nisa Investment Advisors, LLC | 12,102 | $1.39M | 0.00% | −822−6.4% | Reduced |
| Nilsine Partners, LLC | 11,932 | $1.37M | 0.12% | +11,932 | New |
| Farmers & Merchants Trust Co of Long Beach | 11,831 | $1.36M | 0.31% | 00.0% | Unchanged |
| CWM Advisors, LLC | 11,562 | $1.33M | 0.12% | +11,562 | New |
| Winton Group Ltd | 11,100 | $1.27M | 0.04% | −86,399−88.6% | Reduced |
| Oppenheimer Asset Management Inc. | 10,924 | $1.25M | 0.02% | −882−7.5% | Reduced |
| Federation des caisses Desjardins du Quebec | 10,859 | $1.25M | 0.00% | +1,313+13.8% | Added |
| Adage Capital Partners GP, L.L.C. | 10,468 | $1.20M | 0.00% | −4,532−30.2% | Reduced |
| Virginia Retirement Systems Et Al | 10,228 | $1.17M | 0.01% | +950+10.2% | Added |
| Jump Financial, LLC | 10,104 | $1.16M | 0.01% | +10,104 | New |
| Evergreen Capital Management LLC | 10,069 | $1.16M | 0.03% | +2,683+36.3% | Added |
| Waldron Private Wealth LLC | 9,903 | $1.14M | 0.04% | +400+4.2% | Added |
| Securian Asset Management, Inc | 9,901 | $1.14M | 0.04% | −421−4.1% | Reduced |
| Crossmark Global Holdings, Inc. | 9,807 | $1.13M | 0.02% | +943+10.6% | Added |
| Kestra Private Wealth Services, LLC | 9,751 | $1.12M | 0.01% | +42+0.4% | Added |
| Swiss Life Asset Management Ltd | 9,641 | $1.11M | 0.01% | +3,202+49.7% | Added |
| Crestwood Advisors Group LLC | 9,612 | $1.10M | 0.02% | −6,392−39.9% | Reduced |
| Simplex Trading, LLC | 9,545 | $1.10M | 0.03% | +4,585+92.4% | Added |
| Dark Forest Capital Management LP | 9,542 | $1.10M | 0.05% | +9,542 | New |
| Quest Partners LLC | 9,519 | $1.09M | 0.06% | +3,033+46.8% | Added |
| Redwood Investment Management, LLC | 9,495 | $1.09M | 0.12% | −5,140−35.1% | Reduced |
| Polymer Capital Management (US) LLC | 9,437 | $1.08M | 0.14% | +6,791+256.7% | Added |
| Walleye Trading LLC | 9,362 | $1.07M | 0.02% | +9,362 | New |
| Keybank National Association | 9,115 | $1.05M | 0.00% | −297−3.2% | Reduced |
| O'Shaughnessy Asset Management, LLC | 8,921 | $1.02M | 0.01% | +1,325+17.4% | Added |
| Weinberger Asset Management, Inc | 8,800 | $1.01M | 0.36% | 00.0% | Unchanged |
| Sciencast Management LP | 8,644 | $992.0K | 0.14% | −2,815−24.6% | Reduced |
| Capital International Sarl | 8,537 | $979.7K | 0.02% | 00.0% | Unchanged |
| Numerai GP LLC | 8,426 | $967.0K | 0.12% | +8,426 | New |
| Brevan Howard Capital Management LP | 8,403 | $964.3K | 0.02% | +735+9.6% | Added |
| Everence Capital Management Inc | 8,120 | $932.0K | 0.06% | 00.0% | Unchanged |
| Edgestream Partners, L.P. | 8,118 | $931.6K | 0.03% | −50−0.6% | Reduced |
| Qsemble Capital Management, LP | 8,087 | $928.1K | 0.08% | +8,087 | New |
| Sterling Capital Management LLC | 7,986 | $916.5K | 0.01% | −662−7.7% | Reduced |
| Tower Research Capital LLC (TRC) | 7,980 | $915.8K | 0.02% | +3,431+75.4% | Added |
| CCG Wealth Management, LLC | 7,782 | $893.1K | 0.38% | −5−0.1% | Reduced |