52 institutions reported holding $9.3M of FUEL TECH INC (FTEK) in SEC 13F filings for 2026-03-31. Largest institutional holders: GRACE & WHITE INC /NY ($1.9M), RENAISSANCE TECHNOLOGIES LLC ($1.7M), VANGUARD CAPITAL MANAGEMENT LLC ($1.2M), GEODE CAPITAL MANAGEMENT, LLC ($650,106), Peapod Lane Capital LLC ($582,123). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GRACE & WHITE INC /NY | $1.9M | 1.5M | Added |
| 2 | RENAISSANCE TECHNOLOGIES LLC | $1.7M | 1.4M | Added |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | $1.2M | 987,998 | New |
| 4 | GEODE CAPITAL MANAGEMENT, LLC | $650,106 | 532,808 | Added |
| 5 | Peapod Lane Capital LLC | $582,123 | 478,842 | Added |
| 6 | BlackRock, Inc. | $500,644 | 410,364 | Hold |
| 7 | US BANCORP \DE\ | $371,827 | 304,776 | Hold |
| 8 | GSA CAPITAL PARTNERS LLP | $300,000 | 246,252 | Added |
| 9 | TWO SIGMA INVESTMENTS, LP | $290,456 | 238,079 | Added |
| 10 | CITADEL ADVISORS LLC | $270,107 | 221,399 | Trimmed |
| 11 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $207,146 | 169,792 | Trimmed |
| 12 | Beartown Capital Management, LLC | $178,961 | 146,689 | Trimmed |
| 13 | VANGUARD FIDUCIARY TRUST CO | $161,656 | 132,505 | New |
| 14 | STATE STREET CORP | $148,652 | 121,846 | Hold |
| 15 | XTX Topco Ltd | $144,261 | 118,247 | Trimmed |
| 16 | INTEGRITY WEALTH ADVISORS, INC. | $140,300 | 115,000 | Added |
| 17 | ESSEX INVESTMENT MANAGEMENT CO LLC | $94,245 | 77,250 | Hold |
| 18 | JANE STREET GROUP, LLC | $86,373 | 70,797 | Trimmed |
| 19 | GROUP ONE TRADING LLC | $49,062 | 40,215 | Trimmed |
| 20 | Integrated Wealth Concepts LLC | $42,700 | 35,000 | New |
| 21 | NORTHERN TRUST CORP | $38,351 | 31,435 | Hold |
| 22 | Cresset Asset Management, LLC | $31,110 | 25,500 | Hold |
| 23 | MARSHALL WACE, LLP | $26,559 | 21,770 | Trimmed |
| 24 | DIMENSIONAL FUND ADVISORS LP | $23,579 | 19,428 | Trimmed |
| 25 | Chicago Partners Investment Group LLC | $23,069 | 17,088 | New |
Source: SEC Form 13F filings · as of 2026-03-31