FUEL TECH, INC. - FTEK
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| GRACE & WHITE INC /NY | History | Added to | 1,541,307 | 1,880 | 0.33% | 0.41% | 1 | +55,424 | 3.73% | Q1 2026 | Apr 21, 2026 |
| VANGUARD GROUP INC | History | No change | 1,126,003 | 1,756 | 0.0% | 0.0% | 2 | 0 | 0.0% | Q4 2025 | Jan 29, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Added to | 1,407,806 | 1,717 | 0.0% | 0.0% | 3 | +259,811 | 22.63% | Q1 2026 | May 14, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | History | New | 987,998 | 1,205 | 0.0% | — | 4 | +987,998 | New | Q1 2026 | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Added to | 532,808 | 650 | 0.0% | 0.0% | 5 | +13,869 | 2.67% | Q1 2026 | May 15, 2026 |
| Peapod Lane Capital LLC | History | Added to | 478,842 | 582 | 0.48% | 0.48% | 6 | +119,199 | 33.14% | Q1 2026 | May 01, 2026 |
| BlackRock, Inc. | History | No change | 410,364 | 500 | 0.0% | 0.0% | 7 | 0 | 0.0% | Q1 2026 | May 13, 2026 |
| US BANCORP \DE\ | History | No change | 304,776 | 371 | 0.0% | 0.0% | 8 | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| GSA CAPITAL PARTNERS LLP | History | Added to | 246,252 | 300 | 0.02% | 0.0% | 9 | +214,241 | 669.27% | Q1 2026 | May 08, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | Added to | 238,079 | 290 | 0.0% | 0.0% | 10 | +111,919 | 88.71% | Q1 2026 | May 15, 2026 |
| CITADEL ADVISORS LLC | History | Reduced | 221,399 | 270 | 0.0% | 0.0% | 11 | -314,418 | -58.68% | Q1 2026 | May 15, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Reduced | 169,792 | 207 | 0.0% | 0.0% | 12 | -89,484 | -34.51% | Q1 2026 | May 15, 2026 |
| Beartown Capital Management, LLC | History | Reduced | 146,689 | 178 | 0.09% | 0.18% | 13 | -13,338 | -8.33% | Q1 2026 | May 14, 2026 |
| VANGUARD FIDUCIARY TRUST CO | History | New | 132,505 | 161 | 0.0% | — | 14 | +132,505 | New | Q1 2026 | May 08, 2026 |
| STATE STREET CORP | History | No change | 121,846 | 148 | 0.0% | 0.0% | 15 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| XTX Topco Ltd | History | Reduced | 118,247 | 144 | 0.0% | 0.01% | 16 | -60,056 | -33.68% | Q1 2026 | May 15, 2026 |
| INTEGRITY WEALTH ADVISORS, INC. | History | Added to | 115,000 | 140 | 0.08% | 0.06% | 17 | +45,000 | 64.29% | Q1 2026 | May 14, 2026 |
| TWO SIGMA ADVISERS, LP | History | No change | 67,500 | 105 | 0.0% | 0.0% | 18 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| ESSEX INVESTMENT MANAGEMENT CO LLC | History | No change | 77,250 | 94 | 0.01% | 0.02% | 19 | 0 | 0.0% | Q1 2026 | May 11, 2026 |
| JANE STREET GROUP, LLC | History | Reduced | 70,797 | 86 | 0.0% | 0.0% | 20 | -236,585 | -76.97% | Q1 2026 | May 12, 2026 |
| GROUP ONE TRADING LLC | History | Reduced | 40,215 | 49 | 0.0% | 0.0% | 21 | -2,294 | -5.4% | Q1 2026 | May 13, 2026 |
| Integrated Wealth Concepts LLC | History | New | 35,000 | 42 | 0.0% | — | 22 | +35,000 | New | Q1 2026 | May 15, 2026 |
| NORTHERN TRUST CORP | History | No change | 31,435 | 38 | 0.0% | 0.0% | 23 | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| Cresset Asset Management, LLC | History | No change | 25,500 | 31 | 0.0% | 0.0% | 24 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| MARSHALL WACE, LLP | History | Reduced | 21,770 | 26 | 0.0% | 0.0% | 25 | -59,241 | -73.13% | Q1 2026 | May 14, 2026 |
| DIMENSIONAL FUND ADVISORS LP | History | Reduced | 19,428 | 23 | 0.0% | 0.0% | 26 | -31,771 | -62.05% | Q1 2026 | May 07, 2026 |
| Chicago Partners Investment Group LLC | History | New | 17,088 | 23 | 0.0% | — | 27 | +17,088 | New | Q1 2026 | May 04, 2026 |
| Legato Capital Management LLC | History | No change | 18,165 | 22 | 0.0% | 0.0% | 28 | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| LexAurum Advisors, LLC | History | New | 14,160 | 17 | 0.0% | — | 29 | +14,160 | New | Q1 2026 | Apr 13, 2026 |
| Covestor Ltd | History | Reduced | 12,426 | 15 | 0.01% | 0.01% | 30 | -761 | -5.77% | Q1 2026 | May 05, 2026 |
| HighTower Advisors, LLC | History | No change | 10,440 | 12 | 0.0% | 0.0% | 31 | 0 | 0.0% | Q1 2026 | May 05, 2026 |
| Founders Capital Management | History | Added to | 6,000 | 7 | 0.0% | 0.0% | 32 | +1,000 | 20.0% | Q1 2026 | Apr 21, 2026 |
| Vanguard Global Advisers, LLC | History | New | 5,500 | 6 | 0.0% | — | 33 | +5,500 | New | Q1 2026 | May 08, 2026 |
| Tower Research Capital LLC (TRC) | History | Reduced | 3,211 | 3 | 0.0% | 0.0% | 34 | -1,077 | -25.12% | Q1 2026 | May 15, 2026 |
| New England Capital Financial Advisors LLC | History | No change | 2,000 | 2 | 0.0% | 0.0% | 35 | 0 | 0.0% | Q1 2026 | Apr 27, 2026 |
| SIMPLEX TRADING, LLC | History | Reduced | 1,004 | 1 | 0.0% | 0.0% | 36 | -14,495 | -93.52% | Q1 2026 | May 14, 2026 |
| Advisory Services Network, LLC | History | New | 900 | 1 | 0.0% | — | 38 | +900 | New | Q1 2026 | May 15, 2026 |
| OSAIC HOLDINGS, INC. | History | No change | 1,200 | 1 | 0.0% | 0.0% | 37 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| AMERICAN CENTURY COMPANIES INC | History | Closed out | 0 | 0 | — | 0.0% | — | -38,543 | -100.0% | Q1 2026 | May 15, 2026 |
| Virtu Financial LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -17,254 | -100.0% | Q1 2026 | May 14, 2026 |
| TWO SIGMA SECURITIES, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -14,583 | -100.0% | Q1 2026 | May 15, 2026 |
| Quadrature Capital Ltd | History | Closed out | 0 | 0 | — | 0.0% | — | -11,579 | -100.0% | Q1 2026 | May 15, 2026 |
| NewEdge Advisors, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -2,327 | -100.0% | Q1 2026 | May 15, 2026 |
| WELLS FARGO & COMPANY/MN | History | Closed out | 0 | 0 | — | 0.0% | — | -1,150 | -100.0% | Q1 2026 | May 11, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Closed out | 0 | 0 | — | — | — | -280 | -100.0% | Q1 2026 | May 15, 2026 |
| Orion Capital Management LLC | History | New | 100 | 0 | — | — | — | +100 | New | Q1 2026 | May 14, 2026 |
| SBI Securities Co., Ltd. | History | Reduced | 710 | 0 | — | 0.0% | — | -9 | -1.25% | Q1 2026 | Apr 27, 2026 |
| Caitong International Asset Management Co., Ltd | History | New | 3 | 0 | — | — | — | +3 | New | Q1 2026 | May 11, 2026 |
| UBS Group AG | History | New | 1 | 0 | — | — | — | +1 | New | Q1 2026 | May 05, 2026 |
| FMR LLC | History | No change | 18 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| MORGAN STANLEY | History | No change | 21 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Wilmington Savings Fund Society, FSB | History | No change | 500 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | Apr 30, 2026 |
| CKW FINANCIAL GROUP | History | No change | 200 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 06, 2026 |
| Steward Partners Investment Advisory, LLC | History | No change | 600 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 08, 2026 |
| Motiv8 Investments LLC | History | No change | 100 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |