Latest Period
Q2 2026
CUSIP: 359523107
Latest Period
Q2 2026
Institutions Reporting
42
Shares (Excl. Options)
7,357,171
Price
$2.21
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Latest holder context comes from 42 institutions filings for Q2 2026.
Security key
359523107
Latest holder period
Q2 2026
13F holders
42
13D/G owners
1
CIK / CUSIP context first
Broader feeds
Open recent reporting periods for CUSIP 359523107:
13D/G owners
Large-stake holder rows connected to Schedule 13D/G evidence.
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| GRACE & WHITE INC /NY | 5% | +4.8% | $2,111,591 | +$75,931 | 1,541,307 | +3.7% | Grace & White, Inc. | 31 Mar 2026 |
As of 30 Jun 2026, 42 institutional investors reported holding 7,357,171 shares of FUEL TECH, INC. - COMMON STOCK (FTEK). This represents 24% of the company’s total 30,703,327 outstanding shares.
13F concentration
Largest 13F positions for this security by reported shares and value.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| GRACE & WHITE INC /NY | 5% | 1,541,307 | 0% | 0.54% | $3,406,288 |
| RENAISSANCE TECHNOLOGIES LLC | 3.6% | 1,102,406 | -22% | 0% | $2,436,317 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.3% | 1,005,701 | +1.8% | 0% | $2,222,599 |
| Peapod Lane Capital LLC | 2.7% | 820,592 | +71% | 1.2% | $1,813,508 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.7% | 522,983 | -1.8% | 0% | $1,155,949 |
| BlackRock, Inc. | 1.6% | 496,493 | +21% | 0% | $1,097,249 |
| US BANCORP \DE\ | 0.99% | 304,776 | 0% | 0% | $673,555 |
| GSA CAPITAL PARTNERS LLP | 0.96% | 295,141 | +20% | 0.04% | $652,000 |
| TWO SIGMA INVESTMENTS, LP | 0.55% | 168,457 | -29% | 0% | $372,290 |
| Beartown Capital Management, LLC | 0.48% | 146,689 | 0% | 0.14% | $324,183 |
| VANGUARD FIDUCIARY TRUST CO | 0.43% | 133,459 | +0.72% | 0% | $294,944 |
| STATE STREET CORP | 0.4% | 121,846 | 0% | 0% | $269,280 |
| Marquette Asset Management, LLC | 0.36% | 110,509 | 0.03% | $244,225 | |
| JANE STREET GROUP, LLC | 0.36% | 109,483 | +55% | 0% | $241,957 |
| THOMPSON DAVIS & CO., INC. | 0.28% | 85,800 | 0.11% | $189,618 | |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 0.25% | 77,159 | -0.12% | 0.02% | $170,521 |
| NORTHERN TRUST CORP | 0.2% | 60,333 | +92% | 0% | $133,336 |
| Rothschild Wealth LLC | 0.13% | 40,000 | 0.01% | $88,400 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 0.12% | 35,896 | -74% | 0% | $79,330 |
| LexAurum Advisors, LLC | 0.07% | 20,160 | +42% | 0.01% | $44,554 |
| CITADEL ADVISORS LLC | 0.06% | 19,070 | -91% | 0% | $42,145 |
| Legato Capital Management LLC | 0.06% | 18,165 | 0% | 0% | $40,145 |
| UBS Group AG | 0.06% | 18,015 | +1801400% | 0% | $39,813 |
| GROUP ONE TRADING LLC | 0.05% | 13,903 | -65% | 0% | $30,726 |
| DIMENSIONAL FUND ADVISORS LP | 0.04% | 13,428 | -31% | 0% | $29,061 |
Quarter history
Holder count, reported shares/value, and median price by quarter.
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 7,357,171 | $16,257,683 | +$24,119 | $2.21 | 42 |
| 2026 Q1 | 7,559,502 | $9,222,119 | -$75,382 | $1.22 | 45 |
| 2025 Q4 | 7,566,282 | $11,789,949 | -$836,810 | $1.56 | 43 |
| 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 |