| 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 | -$1,271,889 | $2.52 | 36 |
| 2025 Q1 | 6,718,566 | $7,051,611 | -$259,545 | $1.05 | 34 |
| 2024 Q4 | 6,962,774 | $7,311,235 | -$487,399 | $1.05 | 38 |
| 2024 Q3 | 6,449,842 | $6,771,478 | +$267,143 | $1.05 | 35 |
| 2024 Q2 | 6,194,104 | $6,627,601 | -$190,904 | $1.07 | 31 |
| 2024 Q1 | 6,368,532 | $7,705,994 | +$154,907 | $1.21 | 30 |
| 2023 Q4 | 5,492,782 | $6,837,058 | +$1,155,423 | $1.05 | 33 |
| 2023 Q3 | 6,005,153 | $7,085,041 | -$337,778 | $1.18 | 36 |
| 2023 Q2 | 6,104,212 | $8,299,918 | +$858,479 | $1.32 | 38 |
| 2023 Q1 | 5,618,028 | $7,190,971 | -$19,532 | $1.28 | 35 |
| 2022 Q4 | 5,478,001 | $7,178,118 | +$297,096 | $1.28 | 35 |
| 2022 Q3 | 5,238,907 | $6,131,000 | +$364,677 | $1.17 | 26 |
| 2022 Q2 | 4,916,098 | $6,095,000 | -$667,715 | $1.24 | 24 |
| 2022 Q1 | 5,145,645 | $7,822,000 | -$654,642 | $1.45 | 26 |
| 2021 Q4 | 5,649,428 | $7,908,000 | +$814,138 | $1.40 | 35 |
| 2021 Q3 | 5,030,233 | $8,763,696 | -$1,096,787 | $1.74 | 32 |
| 2021 Q2 | 5,653,703 | $13,282,940 | -$7,950,396 | $2.35 | 34 |
| 2021 Q1 | 7,944,821 | $24,942,140 | +$10,068,207 | $3.14 | 37 |
| 2020 Q4 | 4,735,371 | $18,380,552 | -$4,132,226 | $3.88 | 28 |
| 2020 Q3 | 5,930,541 | $4,991,337 | +$101,150 | $0.84 | 27 |
| 2020 Q2 | 5,808,892 | $4,880,336 | -$101,903 | $0.84 | 26 |
| 2020 Q1 | 5,974,906 | $2,392,160 | -$171,160 | $0.40 | 22 |
| 2019 Q4 | 6,162,358 | $5,819,380 | -$178,184 | $0.95 | 32 |
| 2019 Q3 | 6,293,050 | $6,227,395 | -$345,594 | $1.00 | 31 |
| 2019 Q2 | 6,441,582 | $9,019,560 | +$778,743 | $1.40 | 31 |
| 2019 Q1 | 5,856,106 | $9,779,253 | +$389,484 | $1.67 | 30 |
| 2018 Q4 | 5,666,564 | $6,741,893 | +$70,734 | $1.19 | 28 |
| 2018 Q3 | 5,583,959 | $7,254,975 | -$17,776 | $1.30 | 27 |
| 2018 Q2 | 5,624,025 | $6,075,810 | +$342,939 | $1.08 | 32 |
| 2018 Q1 | 5,300,165 | $6,365,655 | +$136,727 | $1.20 | 32 |
| 2017 Q4 | 5,185,778 | $5,808,544 | -$1,448,860 | $1.12 | 29 |
| 2017 Q3 | 6,646,890 | $6,747,407 | +$970,286 | $1.02 | 28 |
| 2017 Q2 | 5,718,400 | $4,620,000 | -$198,028 | $0.80 | 28 |
| 2017 Q1 | 5,927,953 | $6,046,020 | +$716,660 | $1.02 | 31 |
| 2016 Q4 | 5,785,532 | $6,655,000 | +$55,050 | $1.15 | 38 |
| 2016 Q3 | 5,727,629 | $8,018,000 | +$42,065 | $1.40 | 34 |
| 2016 Q2 | 5,693,204 | $8,425,000 | +$334,838 | $1.48 | 36 |
| 2016 Q1 | 5,503,565 | $9,630,000 | +$181,452 | $1.75 | 40 |
| 2015 Q4 | 5,399,895 | $10,207,000 | -$34,090 | $1.89 | 41 |
| 2015 Q3 | 5,406,862 | $10,325,965 | +$348,841 | $1.91 | 40 |
| 2015 Q2 | 5,211,181 | $11,444,275 | -$1,158,969 | $2.19 | 41 |
| 2015 Q1 | 5,368,722 | $16,927,995 | -$590,354 | $3.13 | 46 |
| 2014 Q4 | 5,558,111 | $20,966,670 | +$1,282,917 | $3.83 | 49 |
| 2014 Q3 | 5,174,710 | $21,989,782 | -$504,974 | $4.25 | 57 |
| 2014 Q2 | 5,183,404 | $29,233,753 | -$17,963 | $5.64 | 65 |
| 2014 Q1 | 5,209,103 | $26,179,770 | -$6,362,747 | $5.00 | 61 |