Fuel Tech, Inc.
US ˙ NasdaqCM ˙ US3595231073

SecurityFTEK / Fuel Tech, Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership31,435 shares
Latest Disclosed Value $ 38,351
Northern Trust Corp ownership in FTEK / Fuel Tech, Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 31,435 shares of Fuel Tech, Inc. (US:FTEK) valued at $38,351 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 31,435 shares of Fuel Tech, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $45,895 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F FUEL TECH COM 359523107 31,435 0 0.00 38 -22.45 0.0000
2026-02-17 2025-12-31 13F FUEL TECH COM 359523107 31,435 0 0.00 49 -47.87 0.0000
2025-11-14 2025-09-30 13F FUEL TECH COM 359523107 31,435 -5,387 -14.63 94 2.17 0.0000
2025-08-13 2025-06-30 13F FUEL TECH COM 359523107 36,822 0 0.00 93 142.11 0.0000
2025-05-13 2025-03-31 13F FUEL TECH COM 359523107 36,822 0 0.00 39 0.00 0.0000
2025-02-14 2024-12-31 13F FUEL TECH COM 359523107 36,822 0 0.00 39 0.00 0.0000
2024-11-13 2024-09-30 13F FUEL TECH COM 359523107 36,822 0 0.00 39 -2.56 0.0000
2024-08-14 2024-06-30 13F FUEL TECH COM 359523107 36,822 -91 -0.25 39 -11.36 0.0000
2024-05-14 2024-03-31 13F FUEL TECH COM 359523107 36,913 0 0.00 45 15.79 0.0000
2024-02-13 2023-12-31 13F FUEL TECH COM 359523107 36,913 -2,993 -7.50 39 -19.15 0.0000
2023-11-13 2023-09-30 13F FUEL TECH COM 359523107 39,906 0 0.00 47 -9.62 0.0000
2023-08-11 2023-06-30 13F FUEL TECH COM 359523107 39,906 -251 -0.63 53 1.96 0.0000
2023-05-15 2023-03-31 13F FUEL TECH COM 359523107 40,157 0 0.00 51 0.00 0.0000
2023-02-13 2022-12-31 13F FUEL TECH COM 359523107 40,157 0 0.00 51 8.51 0.0000
2022-11-14 2022-09-30 13F FUEL TECH COM 359523107 40,157 0 0.00 47 -6.00 0.0000
2022-08-12 2022-06-30 13F FUEL TECH COM 359523107 40,157 0 0.00 50 -13.79 0.0000
2022-05-13 2022-03-31 13F FUEL TECH COM 359523107 40,157 0 0.00 58 3.57 0.0000
2022-02-08 2021-12-31 13F FUEL TECH COM 359523107 40,157 -3,650 -8.33 56 -26.32 0.0000
2021-11-15 2021-09-30 13F FUEL TECH COM 359523107 43,807 -2,720 -5.85 76 -30.28 0.0000
2021-08-13 2021-06-30 13F FUEL TECH COM 359523107 46,527 -4,415 -8.67 109 -31.87 0.0000
2021-05-12 2021-03-31 13F FUEL TECH COM 359523107 50,942 16,340 47.22 160 18.52 0.0000
2021-02-11 2020-12-31 13F FUEL TECH COM 359523107 34,602 -6,772 -16.37 135 285.71 0.0000
2020-11-16 2020-09-30 13F FUEL TECH COM 359523107 41,374 -2 -0.00 35 0.00 0.0000
2020-08-14 2020-06-30 13F FUEL TECH COM 359523107 41,376 -1,712 -3.97 35 94.44 0.0000
2020-05-14 2020-03-31 13F FUEL TECH COM 359523107 43,088 -465 -1.07 18 -55.00 0.0000
2020-02-14 2019-12-31 13F FUEL TECH COM 359523107 43,553 -57 -0.13 40 -6.98 0.0000
2019-11-13 2019-09-30 13F FUEL TECH COM 359523107 43,610 8 0.02 43 -29.51 0.0000
2019-08-13 2019-06-30 13F FUEL TECH COM 359523107 43,602 -2,867 -6.17 61 -20.78 0.0000
2019-05-13 2019-03-31 13F FUEL TECH COM 359523107 46,469 -217 -0.46 77 37.50 0.0000
2019-02-12 2018-12-31 13F FUEL TECH COM 359523107 46,686 -1,212 -2.53 56 -9.68 0.0000
2018-11-14 2018-09-30 13F FUEL TECH COM 359523107 47,898 1,245 2.67 62 24.00 0.0000
2018-09-18 2018-06-30 13F/A-1 FUEL TECH COM 359523107 46,653 9,109 24.26 50 11.11 0.0000
2018-08-14 2018-06-30 13F FUEL TECH COM 359523107 48,218 10,674 52
2018-05-09 2018-03-31 13F FUEL TECH COM 359523107 37,544 -300 -0.79 45 7.14 0.0000
2018-02-14 2017-12-31 13F FUEL TECH COM 359523107 37,844 1,921 5.35 42 16.67 0.0000
2017-11-13 2017-09-30 13F FUEL TECH COM 359523107 35,923 0 0.00 36 28.57 0.0000
2017-08-11 2017-06-30 13F FUEL TECH COM 359523107 35,923 0 0.00 28 -22.22 0.0000
2017-05-12 2017-03-31 13F FUEL TECH COM 359523107 35,923 252 0.71 36 -12.20 0.0000
2017-02-13 2016-12-31 13F FUEL TECH COM 359523107 35,671 1,611 4.73 41 -14.58 0.0000
2016-11-09 2016-09-30 13F FUEL TECH COM 359523107 34,060 0 0.00 48 -5.88 0.0000
2016-08-12 2016-06-30 13F FUEL TECH COM 359523107 34,060 -374 -1.09 51 -15.00 0.0000
2016-08-19 2016-03-31 13F/A-1 FUEL TECH COM 359523107 34,434 0 0.00 60 -7.69 0.0000
2016-05-13 2016-03-31 13F FUEL TECH COM 359523107 34,434 60
2016-02-12 2015-12-31 13F FUEL TECH COM 359523107 34,434 0 0.00 65 0.00 0.0000
2015-11-12 2015-09-30 13F FUEL TECH COM 359523107 34,434 2,820 8.92 65 -5.80 0.0000
2015-08-13 2015-06-30 13F FUEL TECH COM 359523107 31,614 -4,459 -12.36 69 -38.94 0.0000
2015-05-14 2015-03-31 13F FUEL TECH COM 359523107 36,073 -6,987 -16.23 113 -31.52 0.0000
2015-02-12 2014-12-31 13F FUEL TECH COM 359523107 43,060 4,016 10.29 165 -0.60 0.0000
2014-11-13 2014-09-30 13F FUEL TECH COM 359523107 39,044 -33,140 -45.91 166 -59.21 0.0001
2014-08-14 2014-06-30 13F FUEL TECH COM 359523107 72,184 34,304 90.56 407 115.34 0.0001
2014-05-14 2014-03-31 13F FUEL TECH COM 359523107 37,880 1,467 4.03 189 -26.74 0.0001
2014-02-21 2013-12-31 13F/A-1 FUEL TECH COM 359523107 36,413 -2,151 -5.58 258 52.66 0.0001
2014-02-12 2013-12-31 13F FUEL TECH COM 359523107 36,413 258
2013-11-13 2013-09-30 13F FUEL TECH COM 359523107 38,564 -3,895 -9.17 169 4.32 0.0001
2013-08-09 2013-06-30 13F FUEL TECH COM 359523107 42,459 42,459 162 0.0001
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.