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, Q1 2025
Institutional positions in Ati Inc as of Mar 31, 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
- 426
- +29 vs. Q4 2024
- Shares held
- 134.1M
- −1.96M (−1.4%) vs. Q4 2024
- Total value
- $6.97B
- −$518.0M (−6.9%) vs. Q4 2024
- New holders
- 89
- 161 more added
- Sold out
- 60
- 119 more reduced
6 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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, Q1 2025
Shares, value and share of portfolio for each institution holding Ati Inc; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Teachers Retirement System of the State of Kentucky | 72,442 | $3.77M | 0.03% | +9,423+15.0% | Added |
| Jefferies Financial Group Inc. | 72,795 | $3.79M | 0.07% | −15,805−17.8% | Reduced |
| Mutual of America Capital Management LLC | 73,415 | $3.82M | 0.04% | +51,808+239.8% | Added |
| State of Tennessee, Treasury Department | 73,880 | $3.84M | 0.01% | +18,994+34.6% | Added |
| NBW Capital LLC | 74,383 | $3.87M | 0.86% | −21,131−22.1% | Reduced |
| Warren Averett Asset Management, LLC | 74,383 | $3.87M | 0.05% | +74,383 | New |
| The PNC Financial Services Group, Inc. | 75,920 | $3.95M | 0.00% | −30,028−28.3% | Reduced |
| Roubaix Capital, LLC | 76,325 | $3.97M | 2.07% | +76,325 | New |
| Shay Capital LLC | 76,400 | $3.98M | 1.16% | +27,400+55.9% | Added |
| MetLife Investment Management | 78,862 | $4.10M | 0.02% | +76,695+3,539.2% | Added |
| Verition Fund Management LLC | 81,301 | $4.23M | 0.02% | +66,003+431.4% | Added |
| Jacobs Levy Equity Management, Inc | 81,496 | $4.24M | 0.02% | +81,496 | New |
| Advisors Asset Management, Inc. | 82,766 | $4.31M | 0.08% | −886−1.1% | Reduced |
| Mengis Capital Management, Inc. | 82,907 | $4.31M | 0.90% | +2,575+3.2% | Added |
| State Board of Administration of Florida Retirement System | 88,230 | $4.59M | 0.01% | +4,330+5.2% | Added |
| Brevan Howard Capital Management LP | 89,812 | $4.67M | 0.13% | +32,586+56.9% | Added |
| Appian Way Asset Management LP | 91,765 | $4.77M | 1.13% | +91,765 | New |
| Amundi | 101,541 | $4.96M | 0.00% | +28,215+38.5% | Added |
| Allianz Asset Management GmbH | 96,931 | $5.04M | 0.01% | −42,493−30.5% | Reduced |
| PDT Partners, LLC | 98,362 | $5.12M | 0.36% | +13,100+15.4% | Added |
| Great West Life Assurance Co | 103,972 | $5.42M | 0.01% | −31,022−23.0% | Reduced |
| Alberta Investment Management Corp | 105,393 | $5.48M | 0.04% | +20,567+24.2% | Added |
| Algert Global LLC | 107,095 | $5.57M | 0.14% | −23,210−17.8% | Reduced |
| Voya Investment Management LLC | 109,334 | $5.69M | 0.01% | +51,143+87.9% | Added |
| Jones Road Capital Management, L.P. | 109,877 | $5.72M | 4.08% | −45,468−29.3% | Reduced |
| BNP Paribas Arbitrage, SA | 110,350 | $5.74M | 0.00% | +99,458+913.1% | Added |
| Manufacturers Life Insurance Company, The | 112,375 | $5.85M | 0.01% | +83,565+290.1% | Added |
| NEOS Investment Management LLC | 116,226 | $6.05M | 0.11% | +38,610+49.7% | Added |
| Tema ETFs LLC | 116,226 | $6.05M | 1.81% | +38,610+49.7% | Added |
| California State Teachers Retirement System | 131,107 | $6.82M | 0.01% | +14,717+12.6% | Added |
| Two Sigma Investments, LP | 137,448 | $7.15M | 0.02% | −99,502−42.0% | Reduced |
| New York State Teachers Retirement System | 144,155 | $7.50M | 0.02% | −13,673−8.7% | Reduced |
| Comerica Bank | 146,994 | $7.65M | 0.03% | −39,755−21.3% | Reduced |
| SEI Investments Co | 148,023 | $7.70M | 0.01% | −22,943−13.4% | Reduced |
| California Public Employees Retirement System | 155,490 | $8.09M | 0.01% | +206+0.1% | Added |
| Corebridge Financial, Inc. | 157,425 | $8.19M | 0.05% | +151,538+2,574.1% | Added |
| UBS Group AG | 168,152 | $8.75M | 0.00% | +41,457+32.7% | Added |
| Retirement Systems of Alabama | 173,614 | $9.03M | 0.04% | +173,614 | New |
| Renaissance Technologies LLC | 173,892 | $9.05M | 0.01% | −4,300−2.4% | Reduced |
| Davidson Kempner Capital Management LP | 175,000 | $9.11M | 0.13% | +175,000 | New |
| Barclays PLC | 176,528 | $9.18M | 0.00% | +117,569+199.4% | Added |
| Segall Bryant & Hamill, LLC | 178,565 | $9.29M | 0.14% | +8,169+4.8% | Added |
| Mountaineer Partners Management, LLC | 181,375 | $9.44M | 9.03% | −1,295−0.7% | Reduced |
| Moore Capital Management, LP | 186,849 | $9.72M | 0.33% | +127,032+212.4% | Added |
| Gotham Asset Management, LLC | 186,914 | $9.73M | 0.08% | +8,492+4.8% | Added |
| First Trust Advisors LP | 187,980 | $9.78M | 0.01% | −77,605−29.2% | Reduced |
| Canada Pension Plan Investment Board | 200,400 | $10.4M | 0.01% | −2,408−1.2% | Reduced |
| Nuveen, LLC | 328,384 | $10.9M | 0.00% | +328,384 | New |
| Engineers Gate Manager LP | 209,885 | $10.9M | 0.18% | +199,468+1,914.8% | Added |
| Alliancebernstein L.P. | 216,148 | $11.2M | 0.00% | −200,602−48.1% | Reduced |
| Alta Fox Capital Management, LLC | 216,300 | $11.3M | 4.46% | +216,300 | New |
| Schonfeld Strategic Advisors LLC | 224,182 | $11.7M | 0.08% | +148,814+197.4% | Added |
| Tudor Investment Corp Et Al | 228,272 | $11.9M | 0.11% | +228,272 | New |
| Cubist Systematic Strategies, LLC | 248,963 | $13.0M | 0.17% | +248,963 | New |
| Wells Fargo & Company | 253,468 | $13.2M | 0.00% | −11,283−4.3% | Reduced |
| Legal & General Group Plc | 255,175 | $13.3M | 0.00% | −145,908−36.4% | Reduced |
| ExodusPoint Capital Management, LP | 262,878 | $13.7M | 0.18% | +245,936+1,451.6% | Added |
| Diameter Capital Partners LP | 270,000 | $14.0M | 3.34% | +140,000+107.7% | Added |
| Royce & Associates LP | 271,222 | $14.1M | 0.15% | +22,320+9.0% | Added |
| Hudson Bay Capital Management LP | 272,145 | $14.2M | 0.09% | +70,532+35.0% | Added |
| Swiss National Bank | 276,300 | $14.4M | 0.01% | +31,500+12.9% | Added |
| Prudential Financial Inc | 264,241 | $14.8M | 0.02% | +121,589+85.2% | Added |
| State of Wisconsin Investment Board | 304,397 | $15.8M | 0.04% | +66,818+28.1% | Added |
| CI Private Wealth, LLC | 304,809 | $15.9M | 0.03% | −12,793−4.0% | Reduced |
| HRT Financial LP | 310,486 | $16.2M | 0.10% | +310,486 | New |
| Bridgewater Associates, LP | 318,044 | $16.5M | 0.08% | +241,312+314.5% | Added |
| Principal Financial Group Inc | 327,220 | $17.0M | 0.01% | −362,995−52.6% | Reduced |
| Emerald Mutual Fund Advisers Trust | 349,023 | $18.2M | 1.29% | −20,070−5.4% | Reduced |
| Capital Group Private Client Services, Inc. | 352,528 | $18.3M | 0.18% | +3,492+1.0% | Added |
| British Columbia Investment Management Corp | 358,992 | $18.7M | 0.12% | +91,619+34.3% | Added |
| Rhumbline Advisers | 362,532 | $18.9M | 0.02% | +58,241+19.1% | Added |
| New York State Common Retirement Fund | 362,892 | $18.9M | 0.03% | −19,597−5.1% | Reduced |
| JPMorgan Chase & Co | 380,541 | $19.8M | 0.00% | +142,080+59.6% | Added |
| Gamco Investors, Inc. Et Al | 401,700 | $20.9M | 0.23% | −4,000−1.0% | Reduced |
| Trexquant Investment LP | 419,126 | $21.8M | 0.25% | +419,126 | New |
| Schroder Investment Management Group | 439,217 | $22.4M | 0.02% | +46,944+12.0% | Added |
| Federated Hermes, Inc. | 443,023 | $23.1M | 0.05% | +13,478+3.1% | Added |
| KLCM Advisors, Inc. | 470,068 | $24.5M | 2.86% | +55,484+13.4% | Added |
| Macquarie Group Ltd | 499,186 | $26.0M | 0.03% | −251,318−33.5% | Reduced |
| Wellington Management Group LLP | 518,193 | $27.0M | 0.01% | +66,968+14.8% | Added |
| Capital International Inc | 524,100 | $27.3M | 0.33% | −25,616−4.7% | Reduced |
| NorthRock Partners, LLC | 540,531 | $28.1M | 0.95% | +207,177+62.1% | Added |
| Freestone Grove Partners LP | 543,915 | $28.3M | 0.29% | +543,915 | New |
| Jane Street Group, LLC | 584,391 | $30.4M | 0.05% | +566,937+3,248.2% | Added |
| Emerald Advisers, LLC | 587,250 | $30.6M | 1.38% | −14,789−2.5% | Reduced |
| Capital Research Global Investors | 602,959 | $31.4M | 0.01% | +602,959 | New |
| Marshall Wace, LLP | 608,584 | $31.7M | 0.04% | −90,487−12.9% | Reduced |
| Soros Fund Management LLCSuperinvestorSoros Fund Management | 613,884 | $31.9M | 0.57% | +222,383+56.8% | Added |
| Goldman Sachs Group Inc | 633,948 | $33.0M | 0.01% | +209,480+49.4% | Added |
| Fisher Asset Management, LLC | 651,492 | $33.9M | 0.01% | −12,237−1.8% | Reduced |
| UBS Asset Management Americas Inc | 658,195 | $34.2M | 0.01% | +61,021+10.2% | Added |
| Allspring Global Investments Holdings, LLC | 804,929 | $42.3M | 0.07% | −27,117−3.3% | Reduced |
| Raymond James Financial Inc | 845,252 | $44.0M | 0.02% | +43,024+5.4% | Added |
| Forest Avenue Capital Management LP | 862,334 | $44.9M | 6.13% | +862,334 | New |
| Bank of New York Mellon Corp | 902,200 | $46.9M | 0.01% | +11,048+1.2% | Added |
| Price T Rowe Associates Inc | 938,929 | $48.9M | 0.01% | −190,033−16.8% | Reduced |
| Woodline Partners LP | 944,216 | $49.1M | 0.32% | −47,525−4.8% | Reduced |
| Bank of America Corp | 944,635 | $49.1M | 0.00% | +632,281+202.4% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 1,011,879 | $52.6M | 0.11% | +56,609+5.9% | Added |
| Point72 Asset Management, L.P. | 1,028,660 | $53.5M | 0.15% | +230,846+28.9% | Added |