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 |
|---|---|---|---|---|---|
| Little House Capital LLC | 15,355 | $3.03M | 0.68% | +908+6.3% | Added |
| Allstate Corp | 15,147 | $2.99M | 0.03% | +196+1.3% | Added |
| Polymer Capital Management (US) LLC | 15,144 | $2.98M | 0.44% | +11,189+282.9% | Added |
| Capital International Ltd | 15,128 | $2.98M | 0.10% | +15,128 | New |
| Graham Capital Management, L.P. | 14,742 | $2.91M | 0.08% | +14,742 | New |
| Truist Financial Corp | 14,605 | $2.88M | 0.00% | +5,824+66.3% | Added |
| Oppenheimer Asset Management Inc. | 14,532 | $2.86M | 0.03% | +6,863+89.5% | Added |
| Commonwealth Equity Services, LLC | 14,307 | $2.82M | 0.00% | −355−2.4% | Reduced |
| Rational Advisors LLC | 14,100 | $2.78M | 0.25% | +7,200+104.3% | Added |
| Boothbay Fund Management, LLC | 13,952 | $2.75M | 0.05% | +11,667+510.6% | Added |
| Sendero Wealth Management, LLC | 13,811 | $2.72M | 0.27% | +13,811 | New |
| Ambassador Advisors, LLC | 13,653 | $2.69M | 0.33% | +13,653 | New |
| Dark Forest Capital Management LP | 13,637 | $2.69M | 0.17% | +10,259+303.7% | Added |
| Kovitz Investment Group Partners, LLC | 13,438 | $2.65M | 0.06% | −980−6.8% | Reduced |
| Winton Group Ltd | 13,394 | $2.64M | 0.09% | +4,494+50.5% | Added |
| State of Alaska, Department of Revenue | 13,372 | $2.63M | 0.03% | −349−2.5% | Reduced |
| FourThought Financial Partners, LLC | 13,124 | $2.59M | 0.20% | −135−1.0% | Reduced |
| Old West Investment Management, LLC | 12,555 | $2.47M | 0.26% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 12,494 | $2.46M | 0.06% | +8,432+207.6% | Added |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 12,199 | $2.40M | 0.00% | +12,199 | New |
| Fruth Investment Management | 12,050 | $2.38M | 0.57% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 11,974 | $2.36M | 0.02% | +9,941+489.0% | Added |
| NVWM, LLC | 11,925 | $2.35M | 0.47% | −3,788−24.1% | Reduced |
| Oak Thistle LLC | 11,879 | $2.34M | 0.23% | −216−1.8% | Reduced |
| Farmers & Merchants Trust Co of Long Beach | 11,831 | $2.33M | 0.50% | 00.0% | Unchanged |
| Colony Group, LLC | 11,477 | $2.26M | 0.00% | +2,482+27.6% | Added |
| Swiss Life Asset Management Ltd | 11,389 | $2.24M | 0.01% | +182+1.6% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 11,110 | $2.19M | 0.00% | +5,207+88.2% | Added |
| Williamson Legacy Group, LLC | 11,077 | $2.18M | 1.08% | +11,077 | New |
| Capstone Investment Advisors, LLC | 10,849 | $2.14M | 0.01% | −14,170−56.6% | Reduced |
| Los Angeles Capital Management LLC | 10,832 | $2.13M | 0.01% | −2,742−20.2% | Reduced |
| Captrust Financial Advisors | 10,731 | $2.12M | 0.00% | +2,569+31.5% | Added |
| Kestra Private Wealth Services, LLC | 10,719 | $2.11M | 0.02% | −2,292−17.6% | Reduced |
| Edgestream Partners, L.P. | 10,664 | $2.10M | 0.06% | +1,147+12.1% | Added |
| Crossmark Global Holdings, Inc. | 10,607 | $2.09M | 0.03% | +369+3.6% | Added |
| PVG Asset Management Corp | 10,475 | $2.06M | 1.20% | 00.0% | Unchanged |
| Nomura Holdings Inc | 10,388 | $2.05M | 0.01% | −2,544−19.7% | Reduced |
| Federation des caisses Desjardins du Quebec | 10,126 | $2.00M | 0.01% | −9,803−49.2% | Reduced |
| Evergreen Capital Management LLC | 9,996 | $1.97M | 0.03% | −45−0.4% | Reduced |
| D.A. Davidson & Co. | 9,904 | $1.95M | 0.01% | +549+5.9% | Added |
| Waldron Private Wealth LLC | 9,903 | $1.95M | 0.07% | 00.0% | Unchanged |
| Merit Financial Group, LLC | 9,735 | $1.92M | 0.01% | +53+0.5% | Added |
| Walleye Trading LLC | 9,667 | $1.91M | 0.03% | +9,667 | New |
| Securian Asset Management, Inc | 10,015 | $1.86M | 0.07% | 00.0% | Unchanged |
| Fox Run Management, L.L.C. | 9,361 | $1.85M | 0.31% | +1,166+14.2% | Added |
| Squarepoint Ops LLC | 9,335 | $1.84M | 0.00% | −13,506−59.1% | Reduced |
| Dynamic Technology Lab Private Ltd | 9,130 | $1.80M | 0.40% | +9,130 | New |
| Vestmark Advisory Solutions, Inc. | 8,868 | $1.75M | 0.02% | +1,096+14.1% | Added |
| University of Texas/Texas Am Investment Managment Co | 8,864 | $1.75M | 0.20% | +2,427+37.7% | Added |
| Robeco Institutional Asset Management B.V. | 8,606 | $1.70M | 0.00% | +8,606 | New |
| Oppenheimer & Co Inc | 8,499 | $1.68M | 0.02% | −423−4.7% | Reduced |
| Ritholtz Wealth Management | 8,455 | $1.67M | 0.02% | +8,455 | New |
| Weinberger Asset Management, Inc | 8,800 | $1.65M | 0.53% | 00.0% | Unchanged |
| Headlands Technologies LLC | 8,300 | $1.64M | 0.17% | +5,013+152.5% | Added |
| Gsa Capital Partners LLP | 8,292 | $1.63M | 0.10% | +5,145+163.5% | Added |
| Twin Tree Management, LP | 8,097 | $1.60M | 0.25% | −6,883−45.9% | Reduced |
| SummitTX Capital, L.P. | 7,978 | $1.57M | 0.04% | +7,978 | New |
| Brighton Jones LLC | 7,922 | $1.56M | 0.03% | +356+4.7% | Added |
| M&T Bank Corp | 7,914 | $1.56M | 0.00% | +313+4.1% | Added |
| CCG Wealth Management, LLC | 7,815 | $1.54M | 0.36% | +18+0.2% | Added |
| Bank Julius Baer & Co. Ltd, Zurich | 7,799 | $1.54M | 0.00% | −970−11.1% | Reduced |
| Acadian Asset Management LLC | 7,708 | $1.52M | 0.00% | +7,103+1,174.0% | Added |
| Ethic Inc. | 7,695 | $1.52M | 0.02% | +1,488+24.0% | Added |
| Landscape Capital Management, L.L.C. | 7,649 | $1.51M | 0.10% | +7,649 | New |
| CAPROCK Group, Inc. | 7,616 | $1.50M | 0.03% | +4,264+127.2% | Added |
| Ensign Peak Advisors, Inc | 7,441 | $1.47M | 0.00% | −13,374−64.3% | Reduced |
| Maryland State Retirement & Pension System | 7,352 | $1.45M | 0.02% | +554+8.1% | Added |
| First Business Financial Services, Inc. | 7,158 | $1.41M | 0.11% | −326−4.4% | Reduced |
| Numerai GP LLC | 7,112 | $1.40M | 0.11% | −729−9.3% | Reduced |
| Utah Retirement Systems | 7,061 | $1.39M | 0.01% | −85−1.2% | Reduced |
| First Citizens Bank & Trust Co | 7,061 | $1.39M | 0.02% | +431+6.5% | Added |
| CWM Advisors, LLC | 6,883 | $1.36M | 0.06% | −10,163−59.6% | Reduced |
| Concurrent Investment Advisors, LLC | 6,808 | $1.34M | 0.01% | +605+9.8% | Added |
| Fragasso Group Inc. | 6,653 | $1.31M | 0.07% | +215+3.3% | Added |
| State of Wyoming | 6,652 | $1.31M | 0.13% | +3,770+130.8% | Added |
| Cetera Trust Company, N.A | 6,548 | $1.29M | 0.65% | +75+1.2% | Added |
| Precision Wealth Strategies, LLC | 6,484 | $1.28M | 0.39% | −455−6.6% | Reduced |
| Citizens National Bank Trust Department | 6,407 | $1.26M | 0.19% | 00.0% | Unchanged |
| Central Pacific Bank - Trust Division | 6,308 | $1.24M | 0.13% | 00.0% | Unchanged |
| Principal Securities, Inc. | 6,215 | $1.22M | 0.01% | +6,215 | New |
| Simplex Trading, LLC | 6,203 | $1.22M | 0.03% | +6,203 | New |
| Lido Advisors, LLC | 6,125 | $1.21M | 0.00% | +1,015+19.9% | Added |
| Ostrum Asset Management | 6,065 | $1.20M | 0.06% | +6,065 | New |
| Summit Trail Advisors, LLC | 6,003 | $1.18M | 0.01% | −268−4.3% | Reduced |
| Marathon Partners Equity Management, LLC | 6,000 | $1.18M | 1.16% | −11,500−65.7% | Reduced |
| Machina Capital S.A.S. | 5,976 | $1.18M | 0.19% | +4,076+214.5% | Added |
| GWM Advisors LLC | 5,967 | $1.18M | 0.00% | +1,998+50.3% | Added |
| Magnetar Financial LLC | 5,931 | $1.17M | 0.01% | +5,931 | New |
| Integrated Wealth Concepts LLC | 5,890 | $1.16M | 0.01% | +425+7.8% | Added |
| Keybank National Association | 5,773 | $1.14M | 0.00% | −52−0.9% | Reduced |
| Arista Wealth Management, LLC | 5,753 | $1.13M | 0.12% | −3,468−37.6% | Reduced |
| Exchange Traded Concepts, LLC | 5,737 | $1.13M | 0.01% | +3,168+123.3% | Added |
| Qtron Investments LLC | 5,695 | $1.12M | 0.15% | −1,232−17.8% | Reduced |
| Martingale Asset Management L P | 5,637 | $1.11M | 0.03% | +15+0.3% | Added |
| Toth Financial Advisory Corp | 5,609 | $1.11M | 0.11% | +3,109+124.4% | Added |
| Capula Management Ltd | 5,600 | $1.10M | 0.00% | +5,600 | New |
| US Bancorp | 5,589 | $1.10M | 0.00% | +856+18.1% | Added |
| Apollon Wealth Management, LLC | 5,390 | $1.06M | 0.01% | +1,755+48.3% | Added |
| ProShare Advisors LLC | 5,383 | $1.06M | 0.00% | −65−1.2% | Reduced |
| Oakmont Investment Advisors, Inc. | 5,371 | $1.06M | 0.73% | +167+3.2% | Added |