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 |
|---|---|---|---|---|---|
| Citadel Advisors LLC | 1,066,398 | $55.5M | 0.05% | +675,648+172.9% | Added |
| Morgan Stanley | 1,102,459 | $57.4M | 0.00% | −425,732−27.9% | Reduced |
| Neuberger Berman Group LLC | 1,132,296 | $58.9M | 0.05% | +296,634+35.5% | Added |
| Senator Investment Group LP | 1,212,500 | $63.1M | 3.35% | +493,944+68.7% | Added |
| Loomis Sayles & Co L P | 1,232,297 | $64.1M | 0.09% | −26,930−2.1% | Reduced |
| Northern Trust Corp | 1,262,761 | $65.7M | 0.01% | +316,090+33.4% | Added |
| Barrow Hanley Mewhinney & Strauss LLC | 1,315,151 | $68.4M | 0.25% | +10,996+0.8% | Added |
| Millennium Management LLC | 1,366,061 | $71.1M | 0.07% | +1,266,124+1,266.9% | Added |
| Bowen Hanes & Co Inc | 1,371,335 | $71.4M | 1.98% | +4,420+0.3% | Added |
| American Century Companies Inc | 1,422,116 | $74.0M | 0.05% | +60,651+4.5% | Added |
| Norges Bank | 1,469,212 | $76.4M | 0.01% | −75,968−4.9% | Reduced |
| Charles Schwab Investment Management Inc | 1,492,516 | $77.7M | 0.01% | −70,546−4.5% | Reduced |
| Channing Capital Management, LLC | 1,553,796 | $80.8M | 2.44% | −120,665−7.2% | Reduced |
| D. E. Shaw & Co., Inc. | 1,639,294 | $85.3M | 0.10% | +175,681+12.0% | Added |
| Geode Capital Management, LLC | 2,378,033 | $123.8M | 0.01% | +227,829+10.6% | Added |
| Frontier Capital Management Co LLC | 2,602,258 | $135.4M | 1.48% | −456,293−14.9% | Reduced |
| Dimensional Fund Advisors LP | 2,617,314 | $136.2M | 0.03% | +59,811+2.3% | Added |
| Ameriprise Financial Inc | 2,917,656 | $151.8M | 0.04% | −237,821−7.5% | Reduced |
| Dendur Capital LP | 3,567,000 | $185.6M | 22.64% | 00.0% | Unchanged |
| FMR LLC | 4,228,052 | $220.0M | 0.01% | −2,393,831−36.2% | Reduced |
| Invesco Ltd. | 4,850,439 | $252.4M | 0.05% | +153,939+3.3% | Added |
| State Street Corp | 5,768,232 | $300.1M | 0.01% | −202,261−3.4% | Reduced |
| Capital World Investors | 6,982,174 | $363.3M | 0.06% | +106,598+1.6% | Added |
| BlackRock, Inc. | 13,113,928 | $682.3M | 0.01% | −4,724,355−26.5% | Reduced |
| Vanguard Group Inc | 13,896,542 | $723.0M | 0.01% | −1,438,867−9.4% | Reduced |
| Capital International Investors | 16,891,465 | $878.6M | 0.17% | +989,904+6.2% | Added |
| Anomaly Capital Management, LP | 0 | $0 | 0.00% | −635,876−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −537,700−100.0% | Sold out |
| Cartenna Capital, LP | 0 | $0 | 0.00% | −442,746−100.0% | Sold out |
| Public Sector Pension Investment Board | 0 | $0 | 0.00% | −355,385−100.0% | Sold out |
| Holocene Advisors, LP | 0 | $0 | 0.00% | −353,502−100.0% | Sold out |
| SG Capital Management LLC | 0 | $0 | 0.00% | −335,080−100.0% | Sold out |
| J. Goldman & Co LP | 0 | $0 | 0.00% | −265,851−100.0% | Sold out |
| Voloridge Investment Management, LLC | 0 | $0 | 0.00% | −200,982−100.0% | Sold out |
| Artemis Investment Management LLP | 0 | $0 | 0.00% | −147,220−100.0% | Sold out |
| Capstone Investment Advisors, LLC | 0 | $0 | 0.00% | −108,000−100.0% | Sold out |
| Illinois Municipal Retirement Fund | 0 | $0 | 0.00% | −69,555−100.0% | Sold out |
| ING Groep NV | 0 | $0 | 0.00% | −68,400−100.0% | Sold out |
| BW Gestao de Investimentos Ltda. | 0 | $0 | 0.00% | −42,000−100.0% | Sold out |
| Agp Franklin, LLC | 0 | $0 | 0.00% | −38,294−100.0% | Sold out |
| Fieldview Capital Management, LLC | 0 | $0 | 0.00% | −24,614−100.0% | Sold out |
| Healthcare of Ontario Pension Plan Trust Fund | 0 | $0 | 0.00% | −24,031−100.0% | Sold out |
| Crestline Management, LP | 0 | $0 | 0.00% | −22,100−100.0% | Sold out |
| First Hawaiian Bank | 0 | $0 | 0.00% | −13,655−100.0% | Sold out |
| RMB Capital Management, LLC | 0 | $0 | 0.00% | −11,825−100.0% | Sold out |
| Toroso Investments, LLC | 0 | $0 | 0.00% | −8,024−100.0% | Sold out |
| American Trust | 0 | $0 | 0.00% | −7,253−100.0% | Sold out |
| Numerai GP LLC | 0 | $0 | 0.00% | −6,870−100.0% | Sold out |
| TownSquare Capital, LLC | 0 | $0 | 0.00% | −6,117−100.0% | Sold out |
| Savant Capital, LLC | 0 | $0 | 0.00% | −5,770−100.0% | Sold out |
| TradeLink Capital LLC | 0 | $0 | 0.00% | −5,071−100.0% | Sold out |
| Oak Thistle LLC | 0 | $0 | 0.00% | −5,068−100.0% | Sold out |
| Brinker Capital Investments, LLC | 0 | $0 | 0.00% | −5,049−100.0% | Sold out |
| Orion Portfolio Solutions, LLC | 0 | $0 | 0.00% | −5,049−100.0% | Sold out |
| Madison Asset Management, LLC | 0 | $0 | 0.00% | −5,000−100.0% | Sold out |
| Wedmont Private Capital | 0 | $0 | 0.00% | −4,838−100.0% | Sold out |
| Bleakley Financial Group, LLC | 0 | $0 | 0.00% | −4,780−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −4,597−100.0% | Sold out |
| Souders Financial Advisors | 0 | $0 | 0.00% | −4,544−100.0% | Sold out |
| Apollon Wealth Management, LLC | 0 | $0 | 0.00% | −4,483−100.0% | Sold out |
| Franklin Resources Inc | 0 | $0 | 0.00% | −4,364−100.0% | Sold out |
| Profund Advisors LLC | 0 | $0 | 0.00% | −4,334−100.0% | Sold out |
| Syon Capital LLC | 0 | $0 | 0.00% | −4,214−100.0% | Sold out |
| Cambridge Investment Research Advisors, Inc. | 0 | $0 | 0.00% | −4,042−100.0% | Sold out |
| Keystone Financial Group | 0 | $0 | 0.00% | −3,950−100.0% | Sold out |
| Kestra Advisory Services, LLC | 0 | $0 | 0.00% | −3,721−100.0% | Sold out |
| Oarsman Capital, Inc. | 0 | $0 | 0.00% | −3,570−100.0% | Sold out |
| Edmond de Rothschild Holding S.A. | 0 | $0 | 0.00% | −2,651−100.0% | Sold out |
| Archer Investment Corp | 0 | $0 | 0.00% | −1,880−100.0% | Sold out |
| Mainstream Capital Management LLC | 0 | $0 | 0.00% | −1,700−100.0% | Sold out |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 0 | $0 | 0.00% | −662−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −659−100.0% | Sold out |
| ORG Wealth Partners, LLC | 0 | $0 | 0.00% | −460−100.0% | Sold out |
| New England Capital Financial Advisors LLC | 0 | $0 | 0.00% | −363−100.0% | Sold out |
| LGT Financial Advisors LLC | 0 | $0 | 0.00% | −308−100.0% | Sold out |
| Catalyst Capital Advisors LLC | 0 | $0 | 0.00% | −270−100.0% | Sold out |
| Rise Advisors, LLC | 0 | $0 | 0.00% | −264−100.0% | Sold out |
| Colonial Trust Co | 0 | $0 | 0.00% | −54−100.0% | Sold out |
| Van Hulzen Asset Management, LLC | 0 | $0 | 0.00% | −42−100.0% | Sold out |
| Brown Brothers Harriman & Co | 0 | $0 | 0.00% | −26−100.0% | Sold out |
| Coppell Advisory Solutions LLC | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| Ancora Advisors, LLC | 0 | $0 | 0.00% | −19−100.0% | Sold out |
| Washington Trust Co | 0 | $0 | 0.00% | −18−100.0% | Sold out |
| Riverview Trust Co | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| Abound Wealth Management | 0 | $0 | 0.00% | −9−100.0% | Sold out |
| Cornerstone Planning Group LLC | 0 | $0 | 0.00% | −6−100.0% | Sold out |
| Nuveen Asset Management, LLC | – | – | – | – | Not filed |
| Madison Investment Advisors, LLC | – | – | – | – | Not filed |
| Householder Group Estate & Retirement Specialist, LLC | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |
| Criterion Capital Advisors, LLC | – | – | – | – | Not filed |
| Cassady Schiller Wealth Management, LLC | – | – | – | – | Not filed |