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 |
|---|---|---|---|---|---|
| Louisiana State Employees Retirement System | 39,900 | $7.86M | 0.12% | +500+1.3% | Added |
| Horizon Investments, LLC | 39,418 | $7.77M | 0.09% | −3,796−8.8% | Reduced |
| O'Shaughnessy Asset Management, LLC | 38,521 | $7.59M | 0.04% | +27,239+241.4% | Added |
| Fifth Third Bancorp | 38,427 | $7.57M | 0.01% | −10,472−21.4% | Reduced |
| Yousif Capital Management, LLC | 38,125 | $7.51M | 0.08% | −2,351−5.8% | Reduced |
| Arizona State Retirement System | 37,654 | $7.42M | 0.04% | +330+0.9% | Added |
| Brinker Capital Investments, LLC | 37,486 | $7.39M | 0.06% | +27,450+273.5% | Added |
| MML Investors Services, LLC | 37,139 | $7.32M | 0.01% | +11,791+46.5% | Added |
| Danske Bank A/S | 36,988 | $7.29M | 0.01% | +36,688+12,229.3% | Added |
| Hennion & Walsh Asset Management, Inc. | 36,829 | $7.26M | 0.21% | +5,617+18.0% | Added |
| Janney Montgomery Scott LLC | 36,333 | $7.16M | 0.01% | +2,896+8.7% | Added |
| The PNC Financial Services Group, Inc. | 35,210 | $6.94M | 0.00% | −796,526−95.8% | Reduced |
| Mercer Global Advisors Inc | 35,120 | $6.92M | 0.01% | +4,049+13.0% | Added |
| Mackenzie Financial Corp | 34,992 | $6.90M | 0.01% | +34,992 | New |
| Vanguard Investments Australia, Ltd. | 34,530 | $6.81M | 0.02% | +474+1.4% | Added |
| Capital International Sarl | 33,711 | $6.64M | 0.09% | +20,574+156.6% | Added |
| Sequoia Financial Advisors, LLC | 33,554 | $6.61M | 0.03% | +27,826+485.8% | Added |
| Spire Wealth Management | 33,435 | $6.59M | 0.20% | −161−0.5% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 32,671 | $6.44M | 0.03% | −1,370−4.0% | Reduced |
| New Age Alpha Advisors, LLC | 32,414 | $6.39M | 0.27% | −877−2.6% | Reduced |
| KR Capital LP | 32,325 | $6.37M | 0.63% | +32,325 | New |
| Concentric Capital Strategies, LP | 32,008 | $6.31M | 0.39% | +32,008 | New |
| State of Michigan Retirement System | 31,900 | $6.29M | 0.03% | −800−2.4% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 31,864 | $6.28M | 0.01% | −1,000−3.0% | Reduced |
| Jain Global LLC | 31,725 | $6.25M | 0.07% | −232,751−88.0% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 36,312 | $6.24M | 0.01% | +4,522+14.2% | Added |
| KLP Kapitalforvaltning AS | 31,500 | $6.21M | 0.02% | +1,100+3.6% | Added |
| HighTower Advisors, LLC | 31,264 | $6.16M | 0.01% | −2,791−8.2% | Reduced |
| H Squared Management LP | 31,200 | $6.15M | 3.94% | −5,000−13.8% | Reduced |
| Wiley Bros.-Aintree Capital, LLC | 30,784 | $6.12M | 0.03% | +4,927+19.1% | Added |
| Farmers & Merchants Investments Inc | 31,003 | $6.11M | 0.15% | −3,720−10.7% | Reduced |
| Covea Finance | 31,000 | $6.11M | 0.19% | −9,200−22.9% | Reduced |
| Moore Capital Management, LP | 30,927 | $6.10M | 0.14% | −2,989−8.8% | Reduced |
| Park Avenue Securities LLC | 30,765 | $6.06M | 0.04% | +11,716+61.5% | Added |
| Northwestern Mutual Investment Management Company, LLC | 30,698 | $6.05M | 0.07% | +261+0.9% | Added |
| Cetera Investment Advisers | 30,169 | $5.95M | 0.01% | +3,494+13.1% | Added |
| Xponance, Inc. | 30,057 | $5.92M | 0.04% | +12,686+73.0% | Added |
| Ameritas Investment Partners, Inc. | 29,966 | $5.91M | 0.16% | +87+0.3% | Added |
| Nisa Investment Advisors, LLC | 29,962 | $5.91M | 0.02% | −9,259−23.6% | Reduced |
| Tribune Investment Group LP | 29,380 | $5.79M | 3.91% | −2,620−8.2% | Reduced |
| Aware Super Pty Ltd as trustee of Aware Super | 28,891 | $5.69M | 0.08% | +28,891 | New |
| New Mexico Educational Retirement Board | 28,800 | $5.68M | 0.14% | 00.0% | Unchanged |
| Pier Capital, LLC | 28,199 | $5.56M | 0.74% | −522−1.8% | Reduced |
| Oregon Public Employees Retirement Fund | 28,192 | $5.56M | 0.06% | +357+1.3% | Added |
| Pinebridge Investments LLC | 28,005 | $5.52M | 0.05% | −253−0.9% | Reduced |
| Van Eck Associates Corp | 27,953 | $5.51M | 0.00% | +27,953 | New |
| Candelo Capital Management LP | 27,649 | $5.45M | 4.00% | −497−1.8% | Reduced |
| Rafferty Asset Management, LLC | 27,643 | $5.45M | 0.01% | −8,839−24.2% | Reduced |
| Quantbot Technologies LP | 27,156 | $5.35M | 0.21% | +5,524+25.5% | Added |
| CIBC Bancorp USA Inc. | 25,804 | $5.20M | 0.01% | −81,111−75.9% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 26,133 | $5.15M | 0.08% | 00.0% | Unchanged |
| Envestnet Portfolio Solutions, Inc. | 25,927 | $5.11M | 0.02% | −3,043−10.5% | Reduced |
| Erste Asset Management GmbH | 25,780 | $5.10M | 0.04% | 00.0% | Unchanged |
| Register Financial Advisors LLC | 25,853 | $5.10M | 1.56% | −4,000−13.4% | Reduced |
| Nilsine Partners, LLC | 25,713 | $5.07M | 0.35% | +688+2.7% | Added |
| Occudo Quantitative Strategies LP | 25,281 | $4.98M | 0.26% | −7,517−22.9% | Reduced |
| Mivtachim The Workers Social Insurance Fund Ltd. (Under Special Management) | 24,000 | $4.73M | 0.62% | 00.0% | Unchanged |
| Virginia Retirement Systems Et Al | 23,828 | $4.70M | 0.03% | +7,800+48.7% | Added |
| Steward Partners Investment Advisory, LLC | 23,704 | $4.67M | 0.02% | +3,863+19.5% | Added |
| Quadrature Capital Ltd | 23,645 | $4.66M | 0.04% | −17,975−43.2% | Reduced |
| Pictet Asset Management Holding SA | 23,288 | $4.59M | 0.00% | +1,147+5.2% | Added |
| DnB Asset Management AS | 23,151 | $4.56M | 0.01% | +2,362+11.4% | Added |
| USS Investment Management Ltd | 22,800 | $4.49M | 0.02% | +22,800 | New |
| Huntington National Bank | 22,752 | $4.48M | 0.02% | +53+0.2% | Added |
| Expect Equity LLC | 22,645 | $4.46M | 2.87% | −3,300−12.7% | Reduced |
| Taikang Asset Management (Hong Kong) Co Ltd | 22,005 | $4.34M | 0.39% | +22,005 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 21,561 | $4.25M | 0.01% | +21,561 | New |
| Y-Intercept (Hong Kong) Ltd | 20,971 | $4.13M | 0.08% | −10,649−33.7% | Reduced |
| Hantz Financial Services, Inc. | 20,959 | $4.13M | 0.06% | −31−0.1% | Reduced |
| Advisory Services Network, LLC | 20,737 | $4.09M | 0.05% | +3,039+17.2% | Added |
| Advisor Group Holdings, Inc. | 20,484 | $4.04M | 0.00% | +9,894+93.4% | Added |
| Pacer Advisors, Inc. | 20,302 | $4.00M | 0.01% | −1,377−6.4% | Reduced |
| Legacy Capital Wealth Management, LLC | 19,903 | $3.92M | 1.82% | +632+3.3% | Added |
| Capital Fund Management S.A. | 19,896 | $3.92M | 0.03% | −5,863−22.8% | Reduced |
| Lazard Asset Management LLC | 19,524 | $3.85M | 0.01% | −4,581−19.0% | Reduced |
| South Dakota Investment Council | 18,896 | $3.72M | 0.06% | +13,596+256.5% | Added |
| Axq Capital, LP | 18,637 | $3.67M | 0.40% | −3,055−14.1% | Reduced |
| Dorsey Wright & Associates | 18,605 | $3.67M | 0.62% | +18,605 | New |
| Campbell & CO Investment Adviser LLC | 18,559 | $3.66M | 0.19% | +13,326+254.7% | Added |
| Atria Investments LLC | 18,172 | $3.58M | 0.04% | +4,229+30.3% | 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 |
| Thoroughbred Financial Services, LLC | 17,971 | $3.54M | 0.17% | +1,332+8.0% | Added |
| Teacher Retirement System of Texas | 17,874 | $3.52M | 0.01% | −3,681−17.1% | Reduced |
| JustInvest LLC | 17,864 | $3.52M | 0.03% | +1,349+8.2% | Added |
| Bridgeway Capital Management, LLC | 17,700 | $3.49M | 0.06% | −200−1.1% | Reduced |
| Florida Financial Advisors, LLC | 17,295 | $3.41M | 0.58% | +17,295 | New |
| Knights of Columbus Asset Advisors LLC | 17,043 | $3.36M | 0.17% | +408+2.5% | Added |
| Cambridge Investment Research Advisors, Inc. | 16,972 | $3.35M | 0.01% | +2,337+16.0% | Added |
| OP Asset Management Ltd | 16,812 | $3.31M | 0.04% | −6,173−26.9% | Reduced |
| Graphene Investments SAS | 16,800 | $3.31M | 1.93% | −3,100−15.6% | Reduced |
| Quadrant Capital Group LLC | 16,740 | $3.30M | 0.09% | +618+3.8% | Added |
| Gabelli Funds LLC | 16,579 | $3.27M | 0.02% | +1,263+8.2% | Added |
| RMB Capital Management, LLC | 16,153 | $3.18M | 0.05% | +28+0.2% | Added |
| Raiffeisen Bank International AG | 16,000 | $3.16M | 0.04% | 00.0% | Unchanged |
| LMR Partners LLP | 15,998 | $3.15M | 0.02% | +15,998 | New |
| Bragg Financial Advisors, Inc | 15,985 | $3.15M | 0.08% | 00.0% | Unchanged |
| Emerald Advisers, LLC | 15,917 | $3.14M | 0.07% | −165,568−91.2% | Reduced |
| Catalyst Funds Management Pty Ltd | 15,800 | $3.11M | 0.18% | +1,068+7.2% | Added |
| Steel Peak Wealth Management LLC | 15,540 | $3.06M | 0.08% | +15,540 | New |