| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| GRACE & WHITE INC /NY | 4.8% | -24% | $4,457,649 | -$1,281,732 | 1,485,883 | -22% | Grace & White, Inc. | 31 Oct 2025 |
As of 30 Sep 2025, 47 institutional investors reported holding 7,145,869 shares of FUEL TECH, INC. - COMMON STOCK (FTEK). This represents 23% of the company’s total 31,085,418 outstanding shares.
The largest institutional shareholders of FUEL TECH, INC. - COMMON STOCK (FTEK) together control 22% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| GRACE & WHITE INC /NY | 4.8% | 1,491,683 | -8.7% | 0.79% | $4,475,049 |
| VANGUARD GROUP INC | 3.3% | 1,013,864 | +7.7% | 0% | $3,041,592 |
| RENAISSANCE TECHNOLOGIES LLC | 2.9% | 898,906 | +5.5% | 0% | $2,696,718 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.7% | 523,818 | +1.2% | 0% | $1,571,653 |
| BlackRock, Inc. | 1.3% | 410,364 | -0.16% | 0% | $1,231,092 |
| Peapod Lane Capital LLC | 1.1% | 356,938 | -47% | 0.96% | $1,070,815 |
| Informed Momentum Co LLC | 1.1% | 338,712 | +19% | 0.12% | $1,016,136 |
| US BANCORP \DE\ | 0.98% | 304,776 | 0% | 0% | $914,328 |
| Mercuria Capital Strategies, LLC | 0.77% | 240,000 | 0.95% | $720,000 | |
| JANE STREET GROUP, LLC | 0.76% | 236,922 | 0% | $710,766 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 0.68% | 209,986 | 0% | $629,958 | |
| Murchinson Ltd. | 0.48% | 150,000 | 0.09% | $450,000 | |
| CITADEL ADVISORS LLC | 0.41% | 127,023 | +322% | 0% | $381,069 |
| STATE STREET CORP | 0.37% | 113,746 | +17% | 0% | $341,238 |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 0.25% | 77,250 | 0% | 0.04% | $231,750 |
| INTEGRITY WEALTH ADVISORS, INC. | 0.23% | 70,000 | 0% | 0.08% | $210,000 |
| XTX Topco Ltd | 0.18% | 56,012 | 0.01% | $168,036 | |
| DIMENSIONAL FUND ADVISORS LP | 0.18% | 54,401 | 0% | $162,916 | |
| SIMPLEX TRADING, LLC | 0.14% | 42,501 | +86% | 0% | $127,000 |
| BOOTHBAY FUND MANAGEMENT, LLC | 0.13% | 41,251 | 0% | $123,753 | |
| AMERICAN CENTURY COMPANIES INC | 0.12% | 36,555 | 0% | $109,665 | |
| GSA CAPITAL PARTNERS LLP | 0.12% | 36,490 | 0.01% | $109,000 | |
| Integrated Wealth Concepts LLC | 0.11% | 35,000 | 0% | $105,000 | |
| NORTHERN TRUST CORP | 0.1% | 31,435 | -15% | 0% | $94,305 |
| GOLDMAN SACHS GROUP INC | 0.1% | 31,300 | 0% | $93,900 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 5,000 | $7,800 | -$600 | $1.56 | 1 |
| 2025 Q3 | 7,145,869 | $21,435,903 | +$3,039,739 | $3.00 | 47 |
| 2025 Q2 | 6,138,396 | $15,470,557 | -$1,271,887 | $2.52 | 36 |
| 2025 Q1 | 6,718,566 | $7,051,611 | -$259,538 | $1.05 | 34 |
| 2024 Q4 | 6,960,774 | $7,309,135 | -$489,500 | $1.05 | 38 |
| 2024 Q3 | 6,449,842 | $6,771,478 | +$267,143 | $1.05 | 35 |
| 2024 Q2 | 6,194,104 | $6,627,601 | -$190,907 | $1.07 | 32 |
| 2024 Q1 | 6,368,532 | $7,705,994 | +$155,112 | $1.21 | 30 |
| 2023 Q4 | 5,467,768 | $5,740,058 | +$58,421 | $1.05 | 32 |
| 2023 Q3 | 6,005,153 | $7,085,041 | -$117,778 | $1.18 | 36 |
| 2023 Q2 | 6,098,372 | $8,079,918 | +$639,481 | $1.32 | 38 |
| 2023 Q1 | 5,617,028 | $7,189,971 | +$186,410 | $1.28 | 34 |
| 2022 Q4 | 5,469,677 | $6,969,428 | +$292,788 | $1.27 | 32 |
| 2022 Q3 | 5,234,033 | $6,125,000 | +$363,941 | $1.17 | 24 |
| 2022 Q2 | 4,916,098 | $6,095,000 | -$252,827 | $1.24 | 25 |
| 2022 Q1 | 5,109,838 | $7,405,000 | -$674,056 | $1.45 | 26 |
| 2021 Q4 | 5,648,194 | $7,907,000 | +$814,160 | $1.40 | 35 |
| 2021 Q3 | 5,030,233 | $8,763,696 | -$1,090,377 | $1.74 | 33 |
| 2021 Q2 | 5,635,551 | $13,239,940 | -$7,952,454 | $2.35 | 34 |
| 2021 Q1 | 7,946,069 | $24,947,140 | +$10,073,256 | $3.14 | 40 |
| 2020 Q4 | 4,735,171 | $18,379,552 | -$3,853,223 | $3.88 | 27 |
| 2020 Q3 | 5,889,350 | $4,956,337 | +$101,155 | $0.84 | 25 |
| 2020 Q2 | 5,768,299 | $4,846,336 | -$101,002 | $0.84 | 25 |
| 2020 Q1 | 5,379,192 | $2,154,160 | -$158,609 | $0.40 | 20 |
| 2019 Q4 | 6,120,226 | $5,780,380 | -$178,122 | $0.95 | 31 |
| 2019 Q3 | 6,250,861 | $6,185,395 | -$346,213 | $1.00 | 30 |
| 2019 Q2 | 6,430,882 | $9,004,560 | +$781,636 | $1.40 | 29 |
| 2019 Q1 | 5,856,106 | $9,779,253 | +$389,484 | $1.67 | 30 |
| 2018 Q4 | 5,666,564 | $6,741,893 | +$71,741 | $1.19 | 28 |
| 2018 Q3 | 5,582,359 | $7,252,975 | -$1,780 | $1.30 | 25 |
| 2018 Q2 | 5,623,425 | $6,074,810 | +$341,924 | $1.08 | 31 |
| 2018 Q1 | 5,300,165 | $6,365,655 | +$136,731 | $1.20 | 32 |
| 2017 Q4 | 5,185,778 | $5,808,544 | -$1,448,870 | $1.12 | 29 |
| 2017 Q3 | 6,646,890 | $6,747,407 | +$970,293 | $1.02 | 28 |
| 2017 Q2 | 5,720,404 | $4,622,000 | -$198,055 | $0.80 | 29 |
| 2017 Q1 | 5,902,715 | $6,020,000 | +$716,670 | $1.02 | 29 |
| 2016 Q4 | 5,785,532 | $6,655,000 | +$54,096 | $1.15 | 38 |
| 2016 Q3 | 5,685,954 | $7,960,000 | +$44,818 | $1.40 | 32 |
| 2016 Q2 | 5,649,529 | $8,360,000 | +$328,453 | $1.48 | 34 |
| 2016 Q1 | 5,468,354 | $9,569,000 | +$184,845 | $1.75 | 38 |
| 2015 Q4 | 5,366,220 | $10,143,000 | -$34,094 | $1.89 | 40 |
| 2015 Q3 | 5,372,487 | $10,260,965 | +$344,351 | $1.91 | 38 |
| 2015 Q2 | 5,142,501 | $11,262,275 | -$1,138,305 | $2.19 | 37 |
| 2015 Q1 | 5,368,522 | $16,926,995 | -$592,409 | $3.13 | 45 |
| 2014 Q4 | 5,557,911 | $20,965,670 | +$1,281,645 | $3.83 | 49 |
| 2014 Q3 | 5,173,706 | $21,985,782 | -$506,761 | $4.25 | 56 |
| 2014 Q2 | 5,106,671 | $28,800,753 | +$559,310 | $5.64 | 65 |
| 2014 Q1 | 5,208,603 | $26,176,770 | -$5,561,710 | $5.00 | 61 |