Fuel Tech
Provides emissions-control systems and combustion-optimization programs for energy-related facilities.
$1.48
After-hours close0.00 (0.00%)
At close$1.48(+1.37%)
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Breakdown13F · Form 4
Institutions 24.26%7.56M sharesInsiders 2.03%633.5K sharesOther 73.71%22.97M shares
Shares outstanding 31.17M · Float 23.77M · 76.3% free float
Institutions13F, as of Mar 31, 2026
46 holders · 7.56M shares · 10 new positions · 20 increased · 11 reduced · 8 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Grace & White Inc /NY | 1.54M | 4.95% | +55.4K | Apr 21, 2026 |
| Renaissance Technologies LLC | 1.41M | 4.52% | +259.8K | May 14, 2026 |
| Vanguard Capital Management LLC | 988.0K | 3.17% | +988.0Knew | May 15, 2026 |
| Geode Capital Management, LLC | 532.8K | 1.71% | +13.9K | May 15, 2026 |
| Peapod Lane Capital LLC | 478.8K | 1.54% | +119.2K | May 4, 2026 |
| BlackRock, Inc. | 410.4K | 1.32% | 0 | May 13, 2026 |
| US Bancorp \DE\ | 304.8K | 0.98% | 0 | May 15, 2026 |
| Gsa Capital Partners LLP | 246.3K | 0.79% | +214.2K | May 8, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Grace & White, Inc. | 5.02% | 1.54M | 13G | Apr 6, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Vincent J. Arnone | director, officer: President & CEO | 549.5K | 1.76% | Mar 9, 2026 |
| Sharon L. Jones | director | 84.0K | 0.27% | Jun 6, 2025 |
2 ten-percent owners hold 4.89M shares by Form 4, outside the officers-and-directors figure above · 20 people have not refiled in the last 18 months (2.22M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Mar 6, 2026 | Vincent J. Arnonedirector, officer: President & CEO | Purchase | 10,000 | $1.24 | 549,513 |
CongressHouse and Senate disclosures
Not reported.