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, Q4 2023
Institutional positions in Ati Inc as of Dec 31, 2023. 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
- 349
- +14 vs. Q3 2023
- Shares held
- 134.2M
- +1.20M (+0.9%) vs. Q3 2023
- Total value
- $6.10B
- +$624.5M (+11.4%) vs. Q3 2023
- New holders
- 52
- 113 more added
- Sold out
- 38
- 125 more reduced
3 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2023: 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, Q4 2023
Shares, value and share of portfolio for each institution holding Ati Inc; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Pier 88 Investment Partners LLC | 38,320 | $1.74M | 0.44% | −6,903−15.3% | Reduced |
| Natixis Advisors, L.P. | 38,510 | $1.75M | 0.00% | −8,137−17.4% | Reduced |
| LPL Financial LLC | 40,123 | $1.82M | 0.00% | +3,573+9.8% | Added |
| Teachers Retirement System of the State of Kentucky | 42,130 | $1.92M | 0.02% | 00.0% | Unchanged |
| Bank of Montreal | 42,313 | $1.96M | 0.00% | −315−0.7% | Reduced |
| Maryland State Retirement & Pension System | 46,367 | $2.11M | 0.04% | −995−2.1% | Reduced |
| CoreCommodity Management, LLC | 46,620 | $2.12M | 0.63% | +39,809+584.5% | Added |
| Insight Wealth Strategies, LLC | 46,905 | $2.13M | 0.34% | +9,569+25.6% | Added |
| Ensign Peak Advisors, Inc | 48,206 | $2.19M | 0.00% | +5,350+12.5% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 50,000 | $2.27M | 0.01% | +50,000 | New |
| Hancock Whitney Corp | 51,762 | $2.35M | 0.09% | −1,060−2.0% | Reduced |
| Amalgamated Bank | 54,961 | $2.50M | 0.02% | −2,463−4.3% | Reduced |
| Trexquant Investment LP | 55,638 | $2.53M | 0.06% | +55,638 | New |
| Duality Advisers, LP | 56,413 | $2.57M | 0.27% | +29,511+109.7% | Added |
| Russell Investments Group, Ltd. | 56,563 | $2.57M | 0.00% | −58,315−50.8% | Reduced |
| Susquehanna International Group, LLP | 59,124 | $2.69M | 0.00% | +18,564+45.8% | Added |
| Comerica Bank | 59,535 | $2.71M | 0.01% | −34,509−36.7% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 59,556 | $2.71M | 0.05% | +59,556 | New |
| Register Financial Advisors LLC | 60,253 | $2.74M | 1.83% | −1,100−1.8% | Reduced |
| Alberta Investment Management Corp | 60,284 | $2.74M | 0.03% | +2,418+4.2% | Added |
| Farmers & Merchants Investments Inc | 60,720 | $2.76M | 0.10% | −1,805−2.9% | Reduced |
| Janus Henderson Group PLC | 60,806 | $2.76M | 0.00% | −104−0.2% | Reduced |
| Advisory Research Inc | 62,179 | $2.83M | 0.44% | −41,203−39.9% | Reduced |
| Louisiana State Employees Retirement System | 63,800 | $2.90M | 0.06% | −1,600−2.4% | Reduced |
| Yousif Capital Management, LLC | 64,390 | $2.93M | 0.03% | +568+0.9% | Added |
| HSBC Holdings PLC | 64,015 | $2.94M | 0.00% | −63,404−49.8% | Reduced |
| Manufacturers Life Insurance Company, The | 64,656 | $2.94M | 0.00% | −1,526−2.3% | Reduced |
| State of Tennessee, Treasury Department | 64,906 | $2.95M | 0.01% | +2,308+3.7% | Added |
| Covea Finance | 66,000 | $3.00M | 0.15% | 00.0% | Unchanged |
| Twinbeech Capital LP | 67,672 | $3.08M | 0.05% | +35,727+111.8% | Added |
| MetLife Investment Management | 68,000 | $3.09M | 0.02% | 00.0% | Unchanged |
| American International Group, Inc. | 70,147 | $3.19M | 0.01% | −635−0.9% | Reduced |
| Verition Fund Management LLC | 70,647 | $3.21M | 0.03% | +70,647 | New |
| Walleye Capital LLC | 73,848 | $3.36M | 0.05% | +73,848 | New |
| State of New Jersey Common Pension Fund D | 75,109 | $3.42M | 0.01% | 00.0% | Unchanged |
| Hennessy Advisors Inc | 77,200 | $3.51M | 0.18% | +77,200 | New |
| Mengis Capital Management, Inc. | 77,752 | $3.54M | 0.66% | +6,150+8.6% | Added |
| State of Alaska, Department of Revenue | 78,486 | $3.57M | 0.04% | −1,573−2.0% | Reduced |
| Jane Street Group, LLC | 79,976 | $3.64M | 0.00% | −12,545−13.6% | Reduced |
| Qube Research & Technologies Ltd | 80,592 | $3.66M | 0.01% | +80,592 | New |
| Advisors Asset Management, Inc. | 81,176 | $3.69M | 0.08% | +9,496+13.2% | Added |
| Illinois Municipal Retirement Fund | 83,432 | $3.79M | 0.06% | +9,037+12.1% | Added |
| Royal Bank of Canada | 83,975 | $3.82M | 0.00% | +22,235+36.0% | Added |
| The PNC Financial Services Group, Inc. | 84,050 | $3.82M | 0.00% | +216+0.3% | Added |
| Voya Investment Management LLC | 86,257 | $3.92M | 0.00% | +4,077+5.0% | Added |
| Citigroup Inc | 87,891 | $4.00M | 0.01% | −95,720−52.1% | Reduced |
| Boothbay Fund Management, LLC | 89,747 | $4.08M | 0.15% | +21,595+31.7% | Added |
| Man Group plc | 92,607 | $4.21M | 0.01% | – | – |
| Tudor Investment Corp Et Al | 93,610 | $4.26M | 0.06% | +69,493+288.1% | Added |
| NBW Capital LLC | 95,787 | $4.36M | 0.95% | −697−0.7% | Reduced |
| Oberweis Asset Management Inc | 102,500 | $4.66M | 0.43% | +7,500+7.9% | Added |
| Great West Life Assurance Co | 105,091 | $4.77M | 0.01% | −8,350−7.4% | Reduced |
| Appian Way Asset Management LP | 109,400 | $4.97M | 1.61% | +109,400 | New |
| Texas Permanent School Fund | 110,209 | $5.01M | 0.04% | +1,003+0.9% | Added |
| Thrivent Financial for Lutherans | 114,559 | $5.21M | 0.01% | −5,793−4.8% | Reduced |
| Squarepoint Ops LLC | 118,812 | $5.40M | 0.02% | +118,812 | New |
| First Trust Advisors LP | 128,830 | $5.86M | 0.01% | −16,785−11.5% | Reduced |
| Credit Suisse AG | 129,459 | $5.89M | 0.01% | −196−0.2% | Reduced |
| Two Sigma Advisers, LP | 133,198 | $6.06M | 0.01% | +133,198 | New |
| Mutual of America Capital Management LLC | 135,344 | $6.15M | 0.07% | −525−0.4% | Reduced |
| California State Teachers Retirement System | 136,132 | $6.19M | 0.01% | −6,023−4.2% | Reduced |
| Van Eck Associates Corp | 143,050 | $6.50M | 0.01% | +13,775+10.7% | Added |
| Prudential Financial Inc | 146,537 | $6.66M | 0.01% | −3,836−2.6% | Reduced |
| Moody Aldrich Partners LLC | 157,170 | $7.15M | 1.29% | +40,469+34.7% | Added |
| UBS Group AG | 157,369 | $7.16M | 0.00% | +96,078+156.8% | Added |
| Sapience Investments, LLC | 158,492 | $7.21M | 1.72% | +36,305+29.7% | Added |
| Crestline Management, LP | 171,959 | $7.82M | 0.72% | −62,770−26.7% | Reduced |
| Castleark Management LLC | 174,540 | $7.94M | 0.35% | −32,160−15.6% | Reduced |
| New York State Teachers Retirement System | 175,709 | $7.99M | 0.02% | +2,598+1.5% | Added |
| NorthRock Partners, LLC | 198,886 | $9.04M | 0.38% | +150+0.1% | Added |
| WS Management LLLP | 200,000 | $9.09M | 0.89% | 00.0% | Unchanged |
| Schroder Investment Management Group | 200,272 | $9.11M | 0.01% | +728+0.4% | Added |
| BNP Paribas Arbitrage, SA | 212,734 | $9.67M | 0.02% | +94,734+80.3% | Added |
| State of Wisconsin Investment Board | 217,764 | $9.90M | 0.03% | +58,412+36.7% | Added |
| Barclays PLC | 218,361 | $9.93M | 0.01% | +117,313+116.1% | Added |
| Bornite Capital Management LP | 220,000 | $10.0M | 2.34% | +220,000 | New |
| Knights of Columbus Asset Advisors LLC | 239,553 | $10.9M | 0.70% | +118,997+98.7% | Added |
| Mountaineer Partners Management, LLC | 251,839 | $11.5M | 5.82% | +1,879+0.8% | Added |
| Swiss National Bank | 253,500 | $11.5M | 0.01% | −29,100−10.3% | Reduced |
| California Public Employees Retirement System | 255,974 | $11.6M | 0.01% | −6,821−2.6% | Reduced |
| Citadel Advisors LLC | 259,556 | $11.8M | 0.01% | +168,530+185.1% | Added |
| Public Sector Pension Investment Board | 264,742 | $12.0M | 0.09% | +105,813+66.6% | Added |
| Millennium Management LLC | 267,843 | $12.2M | 0.01% | −79,043−22.8% | Reduced |
| Kennedy Capital Management, Inc. | 275,112 | $12.5M | 0.27% | −18,534−6.3% | Reduced |
| Wells Fargo & Company | 300,572 | $13.7M | 0.00% | −36,079−10.7% | Reduced |
| Royce & Associates LP | 302,600 | $13.8M | 0.13% | −6,200−2.0% | Reduced |
| Mesirow Institutional Investment Management, Inc. | 303,187 | $13.8M | 1.29% | +52,847+21.1% | Added |
| Capital Group Investment Management Pte. Ltd. | 313,778 | $14.3M | 1.50% | −443,727−58.6% | Reduced |
| Wellington Management Group LLP | 317,487 | $14.4M | 0.00% | +19,669+6.6% | Added |
| SEI Investments Co | 331,314 | $15.1M | 0.02% | −62,735−15.9% | Reduced |
| Lazard Asset Management LLC | 352,486 | $16.0M | 0.02% | −8,719−2.4% | Reduced |
| Assenagon Asset Management S.A. | 355,202 | $16.2M | 0.05% | +312,699+735.7% | Added |
| New York State Common Retirement Fund | 356,241 | $16.2M | 0.02% | −103,684−22.5% | Reduced |
| JPMorgan Chase & Co | 362,590 | $16.5M | 0.00% | +83,629+30.0% | Added |
| Rhumbline Advisers | 371,852 | $16.9M | 0.02% | −16,249−4.2% | Reduced |
| Apis Capital Advisors, LLC | 373,800 | $17.0M | 17.83% | +27,800+8.0% | Added |
| UBS Asset Management Americas Inc | 375,498 | $17.1M | 0.01% | −2,317−0.6% | Reduced |
| Legal & General Group Plc | 399,809 | $18.2M | 0.01% | +1,375+0.3% | Added |
| Sasco Capital Inc | 409,556 | $18.6M | 2.18% | −63,990−13.5% | Reduced |
| Bank of America Corp | 412,238 | $18.7M | 0.00% | +20,057+5.1% | Added |