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, Q3 2025
Institutional positions in Ati Inc as of Sep 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
- 470
- +3 vs. Q2 2025
- Shares held
- 128.8M
- −3.45M (−2.6%) vs. Q2 2025
- Total value
- $10.5B
- −$931.7M (−8.2%) vs. Q2 2025
- New holders
- 90
- 152 more added
- Sold out
- 87
- 154 more reduced
6 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Ati Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Virtu Financial LLC | 0 | $0 | 0.00% | −18,107−100.0% | Sold out |
| Sheets Smith Investment Management | 0 | $0 | 0.00% | −15,727−100.0% | Sold out |
| Entropy Technologies, LP | 0 | $0 | 0.00% | −15,567−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −14,628−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −14,119−100.0% | Sold out |
| Worldquant Millennium Advisors LLC | 0 | $0 | 0.00% | −13,001−100.0% | Sold out |
| Occudo Quantitative Strategies LP | 0 | $0 | 0.00% | −12,771−100.0% | Sold out |
| Scientech Research LLC | 0 | $0 | 0.00% | −12,543−100.0% | Sold out |
| Oxford Asset Management LLP | 0 | $0 | 0.00% | −8,421−100.0% | Sold out |
| Bridgefront Capital, LLC | 0 | $0 | 0.00% | −7,754−100.0% | Sold out |
| Numerai GP LLC | 0 | $0 | 0.00% | −7,609−100.0% | Sold out |
| LMR Partners LLP | 0 | $0 | 0.00% | −7,409−100.0% | Sold out |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −7,182−100.0% | Sold out |
| Sheets Smith Wealth Management | 0 | $0 | 0.00% | −6,526−100.0% | Sold out |
| Eisler Capital Management Ltd. | 0 | $0 | 0.00% | −6,134−100.0% | Sold out |
| CoreCommodity Management, LLC | 0 | $0 | 0.00% | −6,038−100.0% | Sold out |
| Peak Financial Advisors LLC | 0 | $0 | 0.00% | −5,735−100.0% | Sold out |
| Gladstone Institutional Advisory LLC | 0 | $0 | 0.00% | −5,432−100.0% | Sold out |
| IFG Advisory, LLC | 0 | $0 | 0.00% | −5,221−100.0% | Sold out |
| CWM Advisors, LLC | 0 | $0 | 0.00% | −4,505−100.0% | Sold out |
| Counterpoint Mutual Funds LLC | 0 | $0 | 0.00% | −3,915−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −3,734−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −3,645−100.0% | Sold out |
| Captrust Financial Advisors | 0 | $0 | 0.00% | −3,534−100.0% | Sold out |
| Savant Capital, LLC | 0 | $0 | 0.00% | −3,492−100.0% | Sold out |
| Darden Wealth Group Inc | 0 | $0 | 0.00% | −3,400−100.0% | Sold out |
| Private Advisor Group, LLC | 0 | $0 | 0.00% | −3,390−100.0% | Sold out |
| Transcend Wealth Collective, LLC | 0 | $0 | 0.00% | −3,373−100.0% | Sold out |
| Pensionmark Financial Group, LLC | 0 | $0 | 0.00% | −3,140−100.0% | Sold out |
| Semanteon Capital Management, LP | 0 | $0 | 0.00% | −2,874−100.0% | Sold out |
| 111 Capital | 0 | $0 | 0.00% | −2,858−100.0% | Sold out |
| Revisor Wealth Management LLC | 0 | $0 | 0.00% | −2,521−100.0% | Sold out |
| Axq Capital, LP | 0 | $0 | 0.00% | −2,506−100.0% | Sold out |
| Syon Capital LLC | 0 | $0 | 0.00% | −2,462−100.0% | Sold out |
| Sig Brokerage, LP | 0 | $0 | 0.00% | −2,453−100.0% | Sold out |
| Peapack Gladstone Financial Corp | 0 | $0 | 0.00% | −2,430−100.0% | Sold out |
| Park Square Financial Group, LLC | 0 | $0 | 0.00% | −1,968−100.0% | Sold out |
| Skopos Labs, Inc. | 0 | $0 | 0.00% | −1,749−100.0% | Sold out |
| Cape Investment Advisory, Inc. | 0 | $0 | 0.00% | −1,518−100.0% | Sold out |
| Sierra Ocean, LLC | 0 | $0 | 0.00% | −279−100.0% | Sold out |
| Twin Peaks Wealth Advisors, LLC | 0 | $0 | 0.00% | −154−100.0% | Sold out |
| Vermillion & White Wealth Management Group, LLC | 0 | $0 | 0.00% | −107−100.0% | Sold out |
| Thurston, Springer, Miller, Herd & Titak, Inc. | 0 | $0 | 0.00% | −95−100.0% | Sold out |
| FNY Investment Advisers, LLC | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Bullock Wealth Management Group | 0 | $0 | 0.00% | −92−100.0% | Sold out |
| New England Capital Financial Advisors LLC | 0 | $0 | 0.00% | −62−100.0% | Sold out |
| Riggs Asset Managment Co. Inc. | 0 | $0 | 0.00% | −38−100.0% | Sold out |
| Center for Financial Planning, Inc. | 0 | $0 | 0.00% | −37−100.0% | Sold out |
| GeoWealth Management, LLC | 0 | $0 | 0.00% | −35−100.0% | Sold out |
| Stone House Investment Management, LLC | 0 | $0 | 0.00% | −25−100.0% | Sold out |
| Bokf, NA | 0 | $0 | 0.00% | −14−100.0% | Sold out |
| Richardson Financial Services Inc. | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| Eq Wealth Advisors, LLC | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| ORG Partners LLC | 0 | $0 | 0.00% | −8−100.0% | Sold out |
| Garde Capital, Inc. | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| NewSquare Capital LLC | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Stephens Consulting, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Norges Bank | – | – | – | – | Not filed |
| NBW Capital LLC | – | – | – | – | Not filed |
| Avantax Advisory Services, Inc. | – | – | – | – | Not filed |
| First Horizon Advisors, Inc. | – | – | – | – | Not filed |
| Iron Horse Wealth Management, LLC | – | – | – | – | Not filed |
| Parkworth Wealth Management, Inc. | – | – | – | – | Not filed |