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 |
|---|---|---|---|---|---|
| Jane Street Group, LLC | 262,607 | $22.7M | 0.04% | −321,784−55.1% | Reduced |
| Macquarie Group Ltd | 266,878 | $23.0M | 0.03% | −232,308−46.5% | Reduced |
| State of Wisconsin Investment Board | 267,280 | $23.1M | 0.06% | −37,117−12.2% | Reduced |
| Amundi | 270,403 | $23.2M | 0.01% | +168,862+166.3% | Added |
| Swiss National Bank | 269,600 | $23.3M | 0.01% | −6,700−2.4% | Reduced |
| Millennium Management LLC | 288,817 | $24.9M | 0.02% | −1,077,244−78.9% | Reduced |
| Canada Pension Plan Investment Board | 295,100 | $25.5M | 0.02% | +94,700+47.3% | Added |
| CI Private Wealth, LLC | 299,064 | $25.8M | 0.04% | −5,745−1.9% | Reduced |
| LTS One Management LP | 305,000 | $26.3M | 6.36% | +305,000 | New |
| Emerald Advisers, LLC | 318,863 | $27.5M | 1.01% | −268,387−45.7% | Reduced |
| Principal Financial Group Inc | 319,799 | $27.6M | 0.01% | −7,421−2.3% | Reduced |
| Cubist Systematic Strategies, LLC | 335,884 | $29.0M | 0.31% | +86,921+34.9% | Added |
| KLCM Advisors, Inc. | 345,263 | $29.8M | 3.17% | −124,805−26.6% | Reduced |
| Capital Group Private Client Services, Inc. | 347,027 | $30.0M | 0.26% | −5,501−1.6% | Reduced |
| Soros Fund Management LLCSuperinvestorSoros Fund Management | 362,695 | $31.3M | 0.54% | −251,189−40.9% | Reduced |
| Rhumbline Advisers | 370,012 | $31.9M | 0.03% | +7,480+2.1% | Added |
| Segall Bryant & Hamill, LLC | 373,083 | $32.2M | 0.45% | +194,518+108.9% | Added |
| Goldman Sachs Group Inc | 380,405 | $32.8M | 0.01% | −253,543−40.0% | Reduced |
| Gamco Investors, Inc. Et Al | 400,800 | $34.6M | 0.34% | −900−0.2% | Reduced |
| Nuveen, LLC | 419,178 | $36.2M | 0.01% | +90,794+27.6% | Added |
| JPMorgan Chase & Co | 433,669 | $37.4M | 0.00% | +53,128+14.0% | Added |
| Federated Hermes, Inc. | 448,485 | $38.7M | 0.07% | +5,462+1.2% | Added |
| Capital International Inc | 458,325 | $39.6M | 0.38% | −65,775−12.6% | Reduced |
| Wellington Management Group LLP | 467,369 | $40.4M | 0.01% | −50,824−9.8% | Reduced |
| Renaissance Technologies LLC | 481,692 | $41.6M | 0.06% | +307,800+177.0% | Added |
| Forest Avenue Capital Management LP | 492,976 | $42.6M | 3.32% | −369,358−42.8% | Reduced |
| Schroder Investment Management Group | 532,837 | $46.0M | 0.04% | +93,620+21.3% | Added |
| NorthRock Partners, LLC | 540,447 | $46.7M | 1.22% | −840.0% | Reduced |
| Tudor Investment Corp Et Al | 591,342 | $51.1M | 0.39% | +363,070+159.1% | Added |
| Citadel Advisors LLC | 592,475 | $51.2M | 0.04% | −473,923−44.4% | Reduced |
| Holocene Advisors, LP | 604,781 | $52.2M | 0.13% | +604,781 | New |
| Allspring Global Investments Holdings, LLC | 629,361 | $52.8M | 0.09% | −175,568−21.8% | Reduced |
| Bank of America Corp | 622,496 | $53.7M | 0.00% | −322,139−34.1% | Reduced |
| Fisher Asset Management, LLC | 627,980 | $54.2M | 0.02% | −23,512−3.6% | Reduced |
| UBS Asset Management Americas Inc | 680,911 | $58.8M | 0.01% | +22,716+3.5% | Added |
| BNP Paribas Arbitrage, SA | 720,224 | $62.2M | 0.05% | +609,874+552.7% | Added |
| Castle Hook Partners LP | 744,648 | $64.3M | 0.95% | +744,648 | New |
| Senator Investment Group LP | 750,000 | $64.8M | 2.50% | −462,500−38.1% | Reduced |
| Neuberger Berman Group LLC | 778,482 | $67.2M | 0.05% | −353,814−31.2% | Reduced |
| Point72 Asset Management, L.P. | 786,259 | $67.9M | 0.16% | −242,401−23.6% | Reduced |
| Voloridge Investment Management, LLC | 822,696 | $71.0M | 0.26% | +822,696 | New |
| Channing Capital Management, LLC | 826,631 | $71.4M | 1.98% | −727,165−46.8% | Reduced |
| UBS Group AG | 826,959 | $71.4M | 0.01% | +658,807+391.8% | Added |
| Woodline Partners LP | 838,621 | $72.4M | 0.38% | −105,595−11.2% | Reduced |
| Bank of New York Mellon Corp | 892,300 | $77.0M | 0.01% | −9,900−1.1% | Reduced |
| Fuller & Thaler Asset Management, Inc. | 911,108 | $78.7M | 0.29% | +911,108 | New |
| Royal Bank of Canada | 934,971 | $80.7M | 0.02% | +874,602+1,448.8% | Added |
| Raymond James Financial Inc | 943,789 | $81.5M | 0.03% | +98,537+11.7% | Added |
| Barrow Hanley Mewhinney & Strauss LLC | 977,271 | $84.4M | 0.28% | −337,880−25.7% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 997,941 | $86.2M | 0.17% | −13,938−1.4% | Reduced |
| Loomis Sayles & Co L P | 1,039,613 | $89.8M | 0.11% | −192,684−15.6% | Reduced |
| Palestra Capital Management LLC | 1,062,298 | $91.7M | 2.72% | +1,062,298 | New |
| Price T Rowe Associates Inc | 1,138,586 | $98.3M | 0.01% | +199,657+21.3% | Added |
| Morgan Stanley | 1,207,211 | $104.2M | 0.01% | +104,752+9.5% | Added |
| Northern Trust Corp | 1,252,717 | $108.2M | 0.01% | −10,044−0.8% | Reduced |
| Bowen Hanes & Co Inc | 1,375,560 | $118.8M | 3.00% | +4,225+0.3% | Added |
| American Century Companies Inc | 1,386,116 | $119.7M | 0.07% | −36,000−2.5% | Reduced |
| Charles Schwab Investment Management Inc | 1,497,433 | $129.3M | 0.02% | +4,917+0.3% | Added |
| Norges Bank | 1,699,392 | $146.7M | 0.02% | +230,180+15.7% | Added |
| Dimensional Fund Advisors LP | 1,999,304 | $172.6M | 0.04% | −618,010−23.6% | Reduced |
| Ameriprise Financial Inc | 2,109,919 | $182.2M | 0.04% | −807,737−27.7% | Reduced |
| Frontier Capital Management Co LLC | 2,225,724 | $192.2M | 1.78% | −376,534−14.5% | Reduced |
| Geode Capital Management, LLC | 2,435,916 | $210.4M | 0.01% | +57,883+2.4% | Added |
| Dendur Capital LP | 3,175,000 | $274.1M | 25.97% | −392,000−11.0% | Reduced |
| Capital Research Global Investors | 3,224,970 | $278.4M | 0.06% | +2,622,011+434.9% | Added |
| Invesco Ltd. | 3,296,624 | $284.6M | 0.05% | −1,553,815−32.0% | Reduced |
| FMR LLC | 3,413,781 | $294.7M | 0.02% | −814,271−19.3% | Reduced |
| D. E. Shaw & Co., Inc. | 3,513,948 | $303.4M | 0.30% | +1,874,654+114.4% | Added |
| State Street Corp | 5,626,765 | $485.8M | 0.02% | −141,467−2.5% | Reduced |
| Capital World Investors | 6,820,371 | $588.9M | 0.09% | −161,803−2.3% | Reduced |
| Vanguard Group Inc | 13,330,475 | $1.15B | 0.02% | −566,067−4.1% | Reduced |
| BlackRock, Inc. | 14,947,268 | $1.29B | 0.02% | +1,833,340+14.0% | Added |
| Capital International Investors | 16,711,428 | $1.44B | 0.25% | −180,037−1.1% | Reduced |
| Freestone Grove Partners LP | 0 | $0 | 0.00% | −543,915−100.0% | Sold out |
| British Columbia Investment Management Corp | 0 | $0 | 0.00% | −358,992−100.0% | Sold out |
| Bridgewater Associates, LP | 0 | $0 | 0.00% | −318,044−100.0% | Sold out |
| Diameter Capital Partners LP | 0 | $0 | 0.00% | −270,000−100.0% | Sold out |
| Alta Fox Capital Management, LLC | 0 | $0 | 0.00% | −216,300−100.0% | Sold out |
| Corebridge Financial, Inc. | 0 | $0 | 0.00% | −157,425−100.0% | Sold out |
| Alberta Investment Management Corp | 0 | $0 | 0.00% | −105,393−100.0% | Sold out |
| Appian Way Asset Management LP | 0 | $0 | 0.00% | −91,765−100.0% | Sold out |
| Jacobs Levy Equity Management, Inc | 0 | $0 | 0.00% | −81,496−100.0% | Sold out |
| Shay Capital LLC | 0 | $0 | 0.00% | −76,400−100.0% | Sold out |
| Susquehanna Fundamental Investments, LLC | 0 | $0 | 0.00% | −68,231−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −64,556−100.0% | Sold out |
| Moody Aldrich Partners LLC | 0 | $0 | 0.00% | −60,853−100.0% | Sold out |
| Magnetar Financial LLC | 0 | $0 | 0.00% | −42,401−100.0% | Sold out |
| EFG Asset Management (North America) Corp. | 0 | $0 | 0.00% | −35,072−100.0% | Sold out |
| Versor Investments LP | 0 | $0 | 0.00% | −31,392−100.0% | Sold out |
| Castleark Management LLC | 0 | $0 | 0.00% | −30,700−100.0% | Sold out |
| Qsemble Capital Management, LP | 0 | $0 | 0.00% | −26,455−100.0% | Sold out |
| Cinctive Capital Management LP | 0 | $0 | 0.00% | −24,435−100.0% | Sold out |
| Kennedy Capital Management, Inc. | 0 | $0 | 0.00% | −23,830−100.0% | Sold out |
| Ionic Capital Management LLC | 0 | $0 | 0.00% | −18,200−100.0% | Sold out |
| CenterBook Partners LP | 0 | $0 | 0.00% | −17,791−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −16,350−100.0% | Sold out |
| Point72 (DIFC) Ltd | 0 | $0 | 0.00% | −14,372−100.0% | Sold out |
| DRW Securities, LLC | 0 | $0 | 0.00% | −13,100−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −11,488−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −10,363−100.0% | Sold out |