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 |
|---|---|---|---|---|---|
| Raiffeisen Bank International AG | 16,000 | $3.16M | 0.04% | 00.0% | Unchanged |
| RMB Capital Management, LLC | 16,153 | $3.18M | 0.05% | +28+0.2% | Added |
| Gabelli Funds LLC | 16,579 | $3.27M | 0.02% | +1,263+8.2% | Added |
| Quadrant Capital Group LLC | 16,740 | $3.30M | 0.09% | +618+3.8% | Added |
| Graphene Investments SAS | 16,800 | $3.31M | 1.93% | −3,100−15.6% | Reduced |
| OP Asset Management Ltd | 16,812 | $3.31M | 0.04% | −6,173−26.9% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 16,972 | $3.35M | 0.01% | +2,337+16.0% | Added |
| Knights of Columbus Asset Advisors LLC | 17,043 | $3.36M | 0.17% | +408+2.5% | Added |
| Florida Financial Advisors, LLC | 17,295 | $3.41M | 0.58% | +17,295 | New |
| Bridgeway Capital Management, LLC | 17,700 | $3.49M | 0.06% | −200−1.1% | Reduced |
| JustInvest LLC | 17,864 | $3.52M | 0.03% | +1,349+8.2% | Added |
| Teacher Retirement System of Texas | 17,874 | $3.52M | 0.01% | −3,681−17.1% | Reduced |
| Thoroughbred Financial Services, LLC | 17,971 | $3.54M | 0.17% | +1,332+8.0% | Added |
| Paradigm Capital Management Inc | 18,000 | $3.55M | 0.10% | 00.0% | Unchanged |
| Pier 88 Investment Partners LLC | 18,000 | $3.55M | 0.84% | 00.0% | Unchanged |
| Atria Investments LLC | 18,172 | $3.58M | 0.04% | +4,229+30.3% | Added |
| Campbell & CO Investment Adviser LLC | 18,559 | $3.66M | 0.19% | +13,326+254.7% | Added |
| Dorsey Wright & Associates | 18,605 | $3.67M | 0.62% | +18,605 | New |
| Axq Capital, LP | 18,637 | $3.67M | 0.40% | −3,055−14.1% | Reduced |
| South Dakota Investment Council | 18,896 | $3.72M | 0.06% | +13,596+256.5% | Added |
| Lazard Asset Management LLC | 19,524 | $3.85M | 0.01% | −4,581−19.0% | Reduced |
| Capital Fund Management S.A. | 19,896 | $3.92M | 0.03% | −5,863−22.8% | Reduced |
| Legacy Capital Wealth Management, LLC | 19,903 | $3.92M | 1.82% | +632+3.3% | Added |
| Pacer Advisors, Inc. | 20,302 | $4.00M | 0.01% | −1,377−6.4% | Reduced |
| Advisor Group Holdings, Inc. | 20,484 | $4.04M | 0.00% | +9,894+93.4% | Added |
| Advisory Services Network, LLC | 20,737 | $4.09M | 0.05% | +3,039+17.2% | Added |
| Hantz Financial Services, Inc. | 20,959 | $4.13M | 0.06% | −31−0.1% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 20,971 | $4.13M | 0.08% | −10,649−33.7% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 21,561 | $4.25M | 0.01% | +21,561 | New |
| Taikang Asset Management (Hong Kong) Co Ltd | 22,005 | $4.34M | 0.39% | +22,005 | New |
| Expect Equity LLC | 22,645 | $4.46M | 2.87% | −3,300−12.7% | Reduced |
| Huntington National Bank | 22,752 | $4.48M | 0.02% | +53+0.2% | Added |
| USS Investment Management Ltd | 22,800 | $4.49M | 0.02% | +22,800 | New |
| DnB Asset Management AS | 23,151 | $4.56M | 0.01% | +2,362+11.4% | Added |
| Pictet Asset Management Holding SA | 23,288 | $4.59M | 0.00% | +1,147+5.2% | Added |
| Quadrature Capital Ltd | 23,645 | $4.66M | 0.04% | −17,975−43.2% | Reduced |
| Steward Partners Investment Advisory, LLC | 23,704 | $4.67M | 0.02% | +3,863+19.5% | Added |
| Virginia Retirement Systems Et Al | 23,828 | $4.70M | 0.03% | +7,800+48.7% | Added |
| Mivtachim The Workers Social Insurance Fund Ltd. (Under Special Management) | 24,000 | $4.73M | 0.62% | 00.0% | Unchanged |
| Occudo Quantitative Strategies LP | 25,281 | $4.98M | 0.26% | −7,517−22.9% | Reduced |
| Nilsine Partners, LLC | 25,713 | $5.07M | 0.35% | +688+2.7% | Added |
| Register Financial Advisors LLC | 25,853 | $5.10M | 1.56% | −4,000−13.4% | Reduced |
| Erste Asset Management GmbH | 25,780 | $5.10M | 0.04% | 00.0% | Unchanged |
| Envestnet Portfolio Solutions, Inc. | 25,927 | $5.11M | 0.02% | −3,043−10.5% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 26,133 | $5.15M | 0.08% | 00.0% | Unchanged |
| CIBC Bancorp USA Inc. | 25,804 | $5.20M | 0.01% | −81,111−75.9% | Reduced |
| Quantbot Technologies LP | 27,156 | $5.35M | 0.21% | +5,524+25.5% | Added |
| Rafferty Asset Management, LLC | 27,643 | $5.45M | 0.01% | −8,839−24.2% | Reduced |
| Candelo Capital Management LP | 27,649 | $5.45M | 4.00% | −497−1.8% | Reduced |
| Van Eck Associates Corp | 27,953 | $5.51M | 0.00% | +27,953 | New |
| Pinebridge Investments LLC | 28,005 | $5.52M | 0.05% | −253−0.9% | Reduced |
| Oregon Public Employees Retirement Fund | 28,192 | $5.56M | 0.06% | +357+1.3% | Added |
| Pier Capital, LLC | 28,199 | $5.56M | 0.74% | −522−1.8% | Reduced |
| New Mexico Educational Retirement Board | 28,800 | $5.68M | 0.14% | 00.0% | Unchanged |
| Aware Super Pty Ltd as trustee of Aware Super | 28,891 | $5.69M | 0.08% | +28,891 | New |
| Tribune Investment Group LP | 29,380 | $5.79M | 3.91% | −2,620−8.2% | Reduced |
| Nisa Investment Advisors, LLC | 29,962 | $5.91M | 0.02% | −9,259−23.6% | Reduced |
| Ameritas Investment Partners, Inc. | 29,966 | $5.91M | 0.16% | +87+0.3% | Added |
| Xponance, Inc. | 30,057 | $5.92M | 0.04% | +12,686+73.0% | Added |
| Cetera Investment Advisers | 30,169 | $5.95M | 0.01% | +3,494+13.1% | Added |
| Northwestern Mutual Investment Management Company, LLC | 30,698 | $6.05M | 0.07% | +261+0.9% | Added |
| Park Avenue Securities LLC | 30,765 | $6.06M | 0.04% | +11,716+61.5% | Added |
| Moore Capital Management, LP | 30,927 | $6.10M | 0.14% | −2,989−8.8% | Reduced |
| Covea Finance | 31,000 | $6.11M | 0.19% | −9,200−22.9% | Reduced |
| Farmers & Merchants Investments Inc | 31,003 | $6.11M | 0.15% | −3,720−10.7% | Reduced |
| Wiley Bros.-Aintree Capital, LLC | 30,784 | $6.12M | 0.03% | +4,927+19.1% | Added |
| H Squared Management LP | 31,200 | $6.15M | 3.94% | −5,000−13.8% | Reduced |
| HighTower Advisors, LLC | 31,264 | $6.16M | 0.01% | −2,791−8.2% | Reduced |
| KLP Kapitalforvaltning AS | 31,500 | $6.21M | 0.02% | +1,100+3.6% | Added |
| Wealth Enhancement Advisory Services, LLC | 36,312 | $6.24M | 0.01% | +4,522+14.2% | Added |
| Jain Global LLC | 31,725 | $6.25M | 0.07% | −232,751−88.0% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 31,864 | $6.28M | 0.01% | −1,000−3.0% | Reduced |
| State of Michigan Retirement System | 31,900 | $6.29M | 0.03% | −800−2.4% | Reduced |
| Concentric Capital Strategies, LP | 32,008 | $6.31M | 0.39% | +32,008 | New |
| KR Capital LP | 32,325 | $6.37M | 0.63% | +32,325 | New |
| New Age Alpha Advisors, LLC | 32,414 | $6.39M | 0.27% | −877−2.6% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 32,671 | $6.44M | 0.03% | −1,370−4.0% | Reduced |
| Spire Wealth Management | 33,435 | $6.59M | 0.20% | −161−0.5% | Reduced |
| Sequoia Financial Advisors, LLC | 33,554 | $6.61M | 0.03% | +27,826+485.8% | Added |
| Capital International Sarl | 33,711 | $6.64M | 0.09% | +20,574+156.6% | Added |
| Vanguard Investments Australia, Ltd. | 34,530 | $6.81M | 0.02% | +474+1.4% | Added |
| Mackenzie Financial Corp | 34,992 | $6.90M | 0.01% | +34,992 | New |
| Mercer Global Advisors Inc | 35,120 | $6.92M | 0.01% | +4,049+13.0% | Added |
| The PNC Financial Services Group, Inc. | 35,210 | $6.94M | 0.00% | −796,526−95.8% | Reduced |
| Janney Montgomery Scott LLC | 36,333 | $7.16M | 0.01% | +2,896+8.7% | Added |
| Hennion & Walsh Asset Management, Inc. | 36,829 | $7.26M | 0.21% | +5,617+18.0% | Added |
| Danske Bank A/S | 36,988 | $7.29M | 0.01% | +36,688+12,229.3% | Added |
| MML Investors Services, LLC | 37,139 | $7.32M | 0.01% | +11,791+46.5% | Added |
| Brinker Capital Investments, LLC | 37,486 | $7.39M | 0.06% | +27,450+273.5% | Added |
| Arizona State Retirement System | 37,654 | $7.42M | 0.04% | +330+0.9% | Added |
| Yousif Capital Management, LLC | 38,125 | $7.51M | 0.08% | −2,351−5.8% | Reduced |
| Fifth Third Bancorp | 38,427 | $7.57M | 0.01% | −10,472−21.4% | Reduced |
| O'Shaughnessy Asset Management, LLC | 38,521 | $7.59M | 0.04% | +27,239+241.4% | Added |
| Horizon Investments, LLC | 39,418 | $7.77M | 0.09% | −3,796−8.8% | Reduced |
| Louisiana State Employees Retirement System | 39,900 | $7.86M | 0.12% | +500+1.3% | Added |
| Bank of Montreal | 39,943 | $7.87M | 0.00% | +16,106+67.6% | Added |
| S Squared Technology, LLC | 40,000 | $7.88M | 2.45% | −15,000−27.3% | Reduced |
| Public Employees Retirement System of Ohio | 40,142 | $7.91M | 0.02% | +212+0.5% | Added |
| Pathstone Holdings, LLC | 41,031 | $8.09M | 0.02% | −2,115−4.9% | Reduced |
| 1492 Capital Management LLC | 41,060 | $8.09M | 2.39% | −805−1.9% | Reduced |