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 2025
Institutional positions in Ati Inc as of Jun 30, 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
- 473
- +52 vs. Q1 2025
- Shares held
- 134.0M
- −2.19K (0.0%) vs. Q1 2025
- Total value
- $11.6B
- +$4.59B (+65.9%) vs. Q1 2025
- New holders
- 112
- 124 more added
- Sold out
- 60
- 187 more reduced
5 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding Ati Inc; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Capital International Investors | 16,711,428 | $1.44B | 0.25% | −180,037−1.1% | Reduced |
| BlackRock, Inc. | 14,947,268 | $1.29B | 0.02% | +1,833,340+14.0% | Added |
| Vanguard Group Inc | 13,330,475 | $1.15B | 0.02% | −566,067−4.1% | Reduced |
| Capital World Investors | 6,820,371 | $588.9M | 0.09% | −161,803−2.3% | Reduced |
| State Street Corp | 5,626,765 | $485.8M | 0.02% | −141,467−2.5% | Reduced |
| D. E. Shaw & Co., Inc. | 3,513,948 | $303.4M | 0.30% | +1,874,654+114.4% | Added |
| FMR LLC | 3,413,781 | $294.7M | 0.02% | −814,271−19.3% | Reduced |
| Invesco Ltd. | 3,296,624 | $284.6M | 0.05% | −1,553,815−32.0% | Reduced |
| Capital Research Global Investors | 3,224,970 | $278.4M | 0.06% | +2,622,011+434.9% | Added |
| Dendur Capital LP | 3,175,000 | $274.1M | 25.97% | −392,000−11.0% | Reduced |
| Geode Capital Management, LLC | 2,435,916 | $210.4M | 0.01% | +57,883+2.4% | Added |
| Frontier Capital Management Co LLC | 2,225,724 | $192.2M | 1.78% | −376,534−14.5% | Reduced |
| Ameriprise Financial Inc | 2,109,919 | $182.2M | 0.04% | −807,737−27.7% | Reduced |
| Dimensional Fund Advisors LP | 1,999,304 | $172.6M | 0.04% | −618,010−23.6% | Reduced |
| Norges Bank | 1,699,392 | $146.7M | 0.02% | +230,180+15.7% | Added |
| Charles Schwab Investment Management Inc | 1,497,433 | $129.3M | 0.02% | +4,917+0.3% | Added |
| American Century Companies Inc | 1,386,116 | $119.7M | 0.07% | −36,000−2.5% | Reduced |
| Bowen Hanes & Co Inc | 1,375,560 | $118.8M | 3.00% | +4,225+0.3% | Added |
| Northern Trust Corp | 1,252,717 | $108.2M | 0.01% | −10,044−0.8% | Reduced |
| Morgan Stanley | 1,207,211 | $104.2M | 0.01% | +104,752+9.5% | Added |
| Price T Rowe Associates Inc | 1,138,586 | $98.3M | 0.01% | +199,657+21.3% | Added |
| Palestra Capital Management LLC | 1,062,298 | $91.7M | 2.72% | +1,062,298 | New |
| Loomis Sayles & Co L P | 1,039,613 | $89.8M | 0.11% | −192,684−15.6% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 997,941 | $86.2M | 0.17% | −13,938−1.4% | Reduced |
| Barrow Hanley Mewhinney & Strauss LLC | 977,271 | $84.4M | 0.28% | −337,880−25.7% | Reduced |
| Raymond James Financial Inc | 943,789 | $81.5M | 0.03% | +98,537+11.7% | Added |
| Royal Bank of Canada | 934,971 | $80.7M | 0.02% | +874,602+1,448.8% | Added |
| Fuller & Thaler Asset Management, Inc. | 911,108 | $78.7M | 0.29% | +911,108 | New |
| Bank of New York Mellon Corp | 892,300 | $77.0M | 0.01% | −9,900−1.1% | Reduced |
| Woodline Partners LP | 838,621 | $72.4M | 0.38% | −105,595−11.2% | Reduced |
| UBS Group AG | 826,959 | $71.4M | 0.01% | +658,807+391.8% | Added |
| Channing Capital Management, LLC | 826,631 | $71.4M | 1.98% | −727,165−46.8% | Reduced |
| Voloridge Investment Management, LLC | 822,696 | $71.0M | 0.26% | +822,696 | New |
| Point72 Asset Management, L.P. | 786,259 | $67.9M | 0.16% | −242,401−23.6% | Reduced |
| Neuberger Berman Group LLC | 778,482 | $67.2M | 0.05% | −353,814−31.2% | Reduced |
| Senator Investment Group LP | 750,000 | $64.8M | 2.50% | −462,500−38.1% | Reduced |
| Castle Hook Partners LP | 744,648 | $64.3M | 0.95% | +744,648 | New |
| BNP Paribas Arbitrage, SA | 720,224 | $62.2M | 0.05% | +609,874+552.7% | Added |
| UBS Asset Management Americas Inc | 680,911 | $58.8M | 0.01% | +22,716+3.5% | Added |
| Fisher Asset Management, LLC | 627,980 | $54.2M | 0.02% | −23,512−3.6% | Reduced |
| Bank of America Corp | 622,496 | $53.7M | 0.00% | −322,139−34.1% | Reduced |
| Allspring Global Investments Holdings, LLC | 629,361 | $52.8M | 0.09% | −175,568−21.8% | Reduced |
| Holocene Advisors, LP | 604,781 | $52.2M | 0.13% | +604,781 | New |
| Citadel Advisors LLC | 592,475 | $51.2M | 0.04% | −473,923−44.4% | Reduced |
| Tudor Investment Corp Et Al | 591,342 | $51.1M | 0.39% | +363,070+159.1% | Added |
| NorthRock Partners, LLC | 540,447 | $46.7M | 1.22% | −840.0% | Reduced |
| Schroder Investment Management Group | 532,837 | $46.0M | 0.04% | +93,620+21.3% | Added |
| Forest Avenue Capital Management LP | 492,976 | $42.6M | 3.32% | −369,358−42.8% | Reduced |
| Renaissance Technologies LLC | 481,692 | $41.6M | 0.06% | +307,800+177.0% | Added |
| Wellington Management Group LLP | 467,369 | $40.4M | 0.01% | −50,824−9.8% | Reduced |
| Capital International Inc | 458,325 | $39.6M | 0.38% | −65,775−12.6% | Reduced |
| Federated Hermes, Inc. | 448,485 | $38.7M | 0.07% | +5,462+1.2% | Added |
| JPMorgan Chase & Co | 433,669 | $37.4M | 0.00% | +53,128+14.0% | Added |
| Nuveen, LLC | 419,178 | $36.2M | 0.01% | +90,794+27.6% | Added |
| Gamco Investors, Inc. Et Al | 400,800 | $34.6M | 0.34% | −900−0.2% | Reduced |
| Goldman Sachs Group Inc | 380,405 | $32.8M | 0.01% | −253,543−40.0% | Reduced |
| Segall Bryant & Hamill, LLC | 373,083 | $32.2M | 0.45% | +194,518+108.9% | Added |
| Rhumbline Advisers | 370,012 | $31.9M | 0.03% | +7,480+2.1% | Added |
| Soros Fund Management LLCSuperinvestorSoros Fund Management | 362,695 | $31.3M | 0.54% | −251,189−40.9% | Reduced |
| Capital Group Private Client Services, Inc. | 347,027 | $30.0M | 0.26% | −5,501−1.6% | Reduced |
| KLCM Advisors, Inc. | 345,263 | $29.8M | 3.17% | −124,805−26.6% | Reduced |
| Cubist Systematic Strategies, LLC | 335,884 | $29.0M | 0.31% | +86,921+34.9% | Added |
| Principal Financial Group Inc | 319,799 | $27.6M | 0.01% | −7,421−2.3% | Reduced |
| Emerald Advisers, LLC | 318,863 | $27.5M | 1.01% | −268,387−45.7% | Reduced |
| LTS One Management LP | 305,000 | $26.3M | 6.36% | +305,000 | New |
| CI Private Wealth, LLC | 299,064 | $25.8M | 0.04% | −5,745−1.9% | Reduced |
| Canada Pension Plan Investment Board | 295,100 | $25.5M | 0.02% | +94,700+47.3% | Added |
| Millennium Management LLC | 288,817 | $24.9M | 0.02% | −1,077,244−78.9% | Reduced |
| Swiss National Bank | 269,600 | $23.3M | 0.01% | −6,700−2.4% | Reduced |
| Amundi | 270,403 | $23.2M | 0.01% | +168,862+166.3% | Added |
| State of Wisconsin Investment Board | 267,280 | $23.1M | 0.06% | −37,117−12.2% | Reduced |
| Macquarie Group Ltd | 266,878 | $23.0M | 0.03% | −232,308−46.5% | Reduced |
| Jane Street Group, LLC | 262,607 | $22.7M | 0.04% | −321,784−55.1% | Reduced |
| Marshall Wace, LLP | 259,392 | $22.4M | 0.03% | −349,192−57.4% | Reduced |
| Two Sigma Investments, LP | 256,653 | $22.2M | 0.04% | +119,205+86.7% | Added |
| Bank of Nova Scotia | 238,237 | $20.6M | 0.04% | +238,237 | New |
| Legal & General Group Plc | 237,225 | $20.5M | 0.01% | −17,950−7.0% | Reduced |
| Kinetic Partners Management, LP | 235,900 | $20.4M | 1.11% | +235,900 | New |
| New York State Common Retirement Fund | 226,456 | $19.6M | 0.03% | −136,436−37.6% | Reduced |
| Wells Fargo & Company | 217,478 | $18.8M | 0.00% | −35,990−14.2% | Reduced |
| Gotham Asset Management, LLC | 207,919 | $18.0M | 0.11% | +21,005+11.2% | Added |
| Hudson Bay Capital Management LP | 206,803 | $17.9M | 0.12% | −65,342−24.0% | Reduced |
| Natixis | 203,330 | $17.6M | 0.09% | +203,130+101,565.0% | Added |
| Alliancebernstein L.P. | 201,028 | $17.4M | 0.01% | −15,120−7.0% | Reduced |
| Prudential Financial Inc | 302,512 | $17.3M | 0.02% | +38,271+14.5% | Added |
| First Trust Advisors LP | 197,214 | $17.0M | 0.01% | +9,234+4.9% | Added |
| ING Groep NV | 192,400 | $16.6M | 0.10% | +192,400 | New |
| Hawk Ridge Capital Management LP | 191,300 | $16.5M | 0.69% | +191,300 | New |
| California Public Employees Retirement System | 183,104 | $15.8M | 0.01% | +27,614+17.8% | Added |
| Emerald Mutual Fund Advisers Trust | 179,255 | $15.5M | 0.94% | −169,768−48.6% | Reduced |
| Retirement Systems of Alabama | 172,417 | $14.9M | 0.05% | −1,197−0.7% | Reduced |
| Moore Capital Management, LP | 162,965 | $14.1M | 0.28% | −23,884−12.8% | Reduced |
| Royce & Associates LP | 162,612 | $14.0M | 0.14% | −108,610−40.0% | Reduced |
| New York State Teachers Retirement System | 143,428 | $12.4M | 0.03% | −727−0.5% | Reduced |
| Schonfeld Strategic Advisors LLC | 137,409 | $11.9M | 0.09% | −86,773−38.7% | Reduced |
| Barclays PLC | 136,984 | $11.8M | 0.00% | −39,544−22.4% | Reduced |
| Yaupon Capital Management LP | 135,246 | $11.7M | 0.78% | +135,246 | New |
| California State Teachers Retirement System | 132,134 | $11.4M | 0.01% | +1,027+0.8% | Added |
| Davidson Kempner Capital Management LP | 130,000 | $11.2M | 0.17% | −45,000−25.7% | Reduced |
| SEI Investments Co | 123,166 | $10.6M | 0.01% | −24,857−16.8% | Reduced |