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 $25.2B in total; 3 superinvestors hold it, including Viking Global Investors and Soros Fund Management.
13F holders, Q2 2026
Institutional positions in Ati Inc as of Jun 30, 2026. 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
- 795
- +124 vs. Q1 2026
- Shares held
- 128.3M
- +1.05M (+0.8%) vs. Q1 2026
- Total value
- $25.2B
- +$6.73B (+36.4%) vs. Q1 2026
- New holders
- 178
- 307 more added
- Sold out
- 54
- 222 more reduced
7 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 | $25.2B |
| Q1 2026 | 678 | $18.5B |
| Q4 2025 | 570 | $14.8B |
| Q3 2025 | 470 | $10.5B |
| Q2 2025 | 473 | $11.6B |
| Q1 2025 | 427 | $6.98B |
| Q4 2024 | 403 | $7.51B |
| Q3 2024 | 421 | $8.91B |
| Q2 2024 | 403 | $7.34B |
| Q1 2024 | 345 | $7.10B |
| Q4 2023 | 349 | $6.22B |
| Q3 2023 | 338 | $5.48B |
| Q2 2023 | 329 | $5.95B |
| Q1 2023 | 339 | $5.39B |
| Q4 2022 | 305 | $3.95B |
| Q3 2022 | 291 | $3.50B |
| Q2 2022 | 266 | $3.02B |
| Q1 2022 | 284 | $3.55B |
| Q4 2021 | 241 | $2.11B |
| Q3 2021 | 236 | $2.21B |
| Q2 2021 | 237 | $2.77B |
| Q1 2021 | 234 | $2.72B |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Ati Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 18,708,922 | $3.69B | 0.05% | +2,267,269+13.8% | Added |
| Vanguard Portfolio Management LLC | 6,219,875 | $1.23B | 0.06% | +398,367+6.8% | Added |
| Vanguard Capital Management LLC | 6,162,418 | $1.21B | 0.03% | +38,290+0.6% | Added |
| Capital World Investors | 5,249,249 | $1.03B | 0.12% | −463,680−8.1% | Reduced |
| State Street Corp | 5,237,299 | $1.03B | 0.03% | −143,714−2.7% | Reduced |
| Capital Research Global Investors | 5,093,768 | $1.00B | 0.14% | −1,066,339−17.3% | Reduced |
| FMR LLC | 4,989,171 | $983.4M | 0.04% | −258,004−4.9% | Reduced |
| Capital International Investors | 3,719,485 | $733.2M | 0.15% | −2,164,464−36.8% | Reduced |
| Invesco Ltd. | 3,449,291 | $679.9M | 0.05% | −406,352−10.5% | Reduced |
| Geode Capital Management, LLC | 2,777,512 | $547.6M | 0.03% | −169,813−5.8% | Reduced |
| Qube Research & Technologies Ltd | 2,144,028 | $422.6M | 0.47% | +1,285,210+149.6% | Added |
| Morgan Stanley | 1,865,178 | $367.6M | 0.02% | +196,587+11.8% | Added |
| Bank of America Corp | 1,767,047 | $348.3M | 0.02% | +402,106+29.5% | Added |
| Norges Bank | 1,739,884 | $342.9M | 0.03% | +1,739,884 | New |
| Charles Schwab Investment Management Inc | 1,483,253 | $292.3M | 0.04% | −18,876−1.3% | Reduced |
| AQR Capital Management LLC | 1,432,935 | $282.4M | 0.10% | +210,355+17.2% | Added |
| Jane Street Group, LLC | 1,410,930 | $278.1M | 0.18% | −80,333−5.4% | Reduced |
| Assenagon Asset Management S.A. | 1,314,234 | $259.0M | 0.17% | +730,204+125.0% | Added |
| Northern Trust Corp | 1,288,597 | $254.0M | 0.03% | +49,577+4.0% | Added |
| Point72 Asset Management, L.P. | 1,240,348 | $244.5M | 0.37% | −692,231−35.8% | Reduced |
| Dimensional Fund Advisors LP | 1,160,274 | $228.7M | 0.04% | −206,530−15.1% | Reduced |
| Viking Global Investors LPSuperinvestorViking Global Investors | 1,153,880 | $227.4M | 0.65% | −2,178,963−65.4% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 1,120,952 | $220.9M | 0.26% | +88,178+8.5% | Added |
| Price T Rowe Associates Inc | 1,021,799 | $201.4M | 0.02% | +693,067+210.8% | Added |
| Dendur Capital LP | 1,009,000 | $198.9M | 11.64% | −274,103−21.4% | Reduced |
| Bessemer Group Inc | 954,983 | $188.2M | 0.26% | +952,877+45,245.8% | Added |
| BNP Paribas Arbitrage, SA | 922,903 | $181.9M | 0.10% | +270,907+41.6% | Added |
| Vanguard Fiduciary Trust Co | 881,293 | $173.7M | 0.04% | +36,916+4.4% | Added |
| Millennium Management LLC | 875,260 | $172.5M | 0.12% | +256,020+41.3% | Added |
| Fisher Asset Management, LLC | 872,372 | $171.9M | 0.05% | −52,149−5.6% | Reduced |
| Ameriprise Financial Inc | 858,201 | $169.2M | 0.03% | −140,633−14.1% | Reduced |
| Bank of New York Mellon Corp | 857,414 | $169.0M | 0.03% | −11,770−1.4% | Reduced |
| Artemis Investment Management LLP | 841,493 | $165.9M | 1.48% | +119,988+16.6% | Added |
| Arrowstreet Capital, Limited Partnership | 839,786 | $165.5M | 0.07% | −363,940−30.2% | Reduced |
| Polen Capital Management LLC | 819,236 | $161.5M | 1.39% | +819,236 | New |
| D. E. Shaw & Co., Inc. | 815,585 | $160.8M | 0.10% | −927,024−53.2% | Reduced |
| Bowen Hanes & Co Inc | 1,043,105 | $151.7M | 3.69% | 00.0% | Unchanged |
| American Century Companies Inc | 765,808 | $150.9M | 0.07% | −303,474−28.4% | Reduced |
| Goldman Sachs Group Inc | 751,276 | $148.1M | 0.02% | +303,457+67.8% | Added |
| Nuveen, LLC | 737,096 | $145.3M | 0.03% | +158,480+27.4% | Added |
| Marshall Wace, LLP | 709,552 | $139.9M | 0.12% | +173,074+32.3% | Added |
| Raymond James Financial Inc | 667,720 | $131.6M | 0.04% | +29,014+4.5% | Added |
| Barrow Hanley Mewhinney & Strauss LLC | 658,413 | $129.8M | 0.39% | −124,053−15.9% | Reduced |
| Two Sigma Investments, LP | 636,671 | $125.5M | 0.09% | +618,896+3,481.8% | Added |
| Freestone Grove Partners LP | 587,093 | $115.7M | 0.76% | +11,220+1.9% | Added |
| Loomis Sayles & Co L P | 581,326 | $114.6M | 0.14% | −72,090−11.0% | Reduced |
| Balyasny Asset Management LLC | 514,088 | $101.3M | 0.19% | −337,576−39.6% | Reduced |
| Holocene Advisors, LP | 497,600 | $98.1M | 0.22% | −599,988−54.7% | Reduced |
| Citadel Advisors LLC | 497,418 | $98.0M | 0.06% | +194,122+64.0% | Added |
| SG Americas Securities, LLC | 489,505 | $96.5M | 0.06% | −585,863−54.5% | Reduced |
| Allspring Global Investments Holdings, LLC | 502,038 | $96.5M | 0.15% | −18,208−3.5% | Reduced |
| Wells Fargo & Company | 483,681 | $95.3M | 0.02% | +132,539+37.7% | Added |
| Federated Hermes, Inc. | 474,180 | $93.5M | 0.13% | −71,352−13.1% | Reduced |
| JPMorgan Chase & Co | 465,592 | $93.3M | 0.01% | +58,169+14.3% | Added |
| UBS Group AG | 464,718 | $91.6M | 0.01% | −954,362−67.3% | Reduced |
| 1832 Asset Management L.P. | 459,483 | $90.6M | 0.11% | +307,969+203.3% | Added |
| Neuberger Berman Group LLC | 450,261 | $88.7M | 0.06% | −44,664−9.0% | Reduced |
| Square Wave Capital, LLC | 444,800 | $87.7M | 13.08% | +78,400+21.4% | Added |
| DSM Capital Partners LLC | 441,048 | $86.9M | 1.49% | +441,048 | New |
| UBS Asset Management Americas Inc | 428,271 | $84.4M | 0.02% | +73,534+20.7% | Added |
| Frontier Capital Management Co LLC | 419,968 | $82.8M | 0.77% | −274,454−39.5% | Reduced |
| Bank of Nova Scotia | 417,290 | $82.2M | 0.12% | −49,859−10.7% | Reduced |
| Envestnet Asset Management Inc | 391,409 | $77.1M | 0.02% | +175,631+81.4% | Added |
| Amundi | 388,616 | $76.6M | 0.02% | +127,430+48.8% | Added |
| Alliancebernstein L.P. | 522,371 | $76.0M | 0.03% | −53,157−9.2% | Reduced |
| Rhumbline Advisers | 376,589 | $74.2M | 0.06% | +22,218+6.3% | Added |
| Gamco Investors, Inc. Et Al | 358,000 | $70.6M | 0.63% | −3,500−1.0% | Reduced |
| Thrivent Financial for Lutherans | 338,645 | $66.7M | 0.11% | +288,246+571.9% | Added |
| ING Groep NV | 330,300 | $65.1M | 0.32% | −47,200−12.5% | Reduced |
| Canada Pension Plan Investment Board | 321,526 | $63.4M | 0.04% | +153,800+91.7% | Added |
| Principal Financial Group Inc | 308,372 | $60.8M | 0.03% | +5,214+1.7% | Added |
| Retirement Systems of Alabama | 286,874 | $56.5M | 0.17% | −25,413−8.1% | Reduced |
| Allianz Asset Management GmbH | 282,318 | $55.6M | 0.05% | +14,484+5.4% | Added |
| Clearbridge Investments, LLC | 280,386 | $55.3M | 0.05% | +280,386 | New |
| Swiss National Bank | 276,400 | $54.5M | 0.03% | +7,600+2.8% | Added |
| Gotham Asset Management, LLC | 269,572 | $53.1M | 0.12% | +9,084+3.5% | Added |
| Vaughan Nelson Investment Management, L.P. | 269,170 | $53.1M | 0.47% | −113,205−29.6% | Reduced |
| California Public Employees Retirement System | 258,900 | $51.0M | 0.03% | +5,103+2.0% | Added |
| Segall Bryant & Hamill, LLC | 242,639 | $47.8M | 0.57% | −34,732−12.5% | Reduced |
| Royal Bank of Canada | 240,438 | $47.4M | 0.01% | +69,409+40.6% | Added |
| Blair William & Co | 231,946 | $45.7M | 0.12% | −5,050−2.1% | Reduced |
| Capital International Inc | 210,648 | $41.5M | 0.29% | −24,280−10.3% | Reduced |
| Schroder Investment Management Group | 207,874 | $41.1M | 0.03% | −194,719−48.4% | Reduced |
| KLCM Advisors, Inc. | 207,475 | $40.9M | 3.28% | −55,364−21.1% | Reduced |
| LPL Financial LLC | 205,781 | $40.6M | 0.01% | +40,211+24.3% | Added |
| Driehaus Capital Management LLC | 205,124 | $40.4M | 0.23% | −7,610−3.6% | Reduced |
| Hawk Ridge Capital Management LP | 204,700 | $40.3M | 1.29% | +19,100+10.3% | Added |
| Jupiter Asset Management Ltd | 202,574 | $39.9M | 0.20% | −139,103−40.7% | Reduced |
| Legal & General Group Plc | 199,420 | $39.3M | 0.01% | −12,578−5.9% | Reduced |
| Citigroup Inc | 192,174 | $37.9M | 0.02% | +116,558+154.1% | Added |
| Panagora Asset Management Inc | 188,522 | $37.2M | 0.11% | +22,991+13.9% | Added |
| Prudential Financial Inc | 181,276 | $35.7M | 0.04% | −628,694−77.6% | Reduced |
| Rokos Capital Management LLP | 180,935 | $35.7M | 0.45% | +100,592+125.2% | Added |
| Yaupon Capital Management LP | 180,204 | $35.5M | 1.18% | +180,204 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 178,880 | $35.3M | 0.05% | +91,838+105.5% | Added |
| Susquehanna International Group, LLP | 178,268 | $35.1M | 0.03% | +142,919+404.3% | Added |
| Schonfeld Strategic Advisors LLC | 177,751 | $35.0M | 0.19% | +154,208+655.0% | Added |
| State of Wisconsin Investment Board | 174,589 | $34.4M | 0.07% | −27,374−13.6% | Reduced |
| Deutsche Bank AG | 162,592 | $32.0M | 0.01% | +54,703+50.7% | Added |
| California State Teachers Retirement System | 158,400 | $31.2M | 0.03% | +639+0.4% | Added |