Fuel Tech, Inc.
US ˙ NasdaqCM ˙ US3595231073

SecurityFTEK / Fuel Tech, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership19,428 shares
Latest Disclosed Value $ 23,579
Dimensional Fund Advisors Lp reports 62.05% decrease in ownership of FTEK / Fuel Tech, Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 19,428 shares of Fuel Tech, Inc. (US:FTEK) valued at $23,702 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 51,199 shares of Fuel Tech, Inc.. This represents a change in shares of -62.05% during the quarter. The current value of the position is $26,422 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)
2026-05-07 2026-03-31 13F FUEL TECH COM 359523107 19,428 -31,771 -62.05 24 -70.89 0.0000
2026-02-12 2025-12-31 13F FUEL TECH COM 359523107 51,199 -3,202 -5.89 80 -51.23 0.0000
2025-11-12 2025-09-30 13F FUEL TECH COM 359523107 54,401 54,401 163 0.0000
2024-02-07 2023-12-31 13F FUEL TECH COM 359523107 0 -14,677 -100.00 0 -100.00
2023-11-09 2023-09-30 13F FUEL TECH COM 359523107 14,677 0 0.00 17 -10.53 0.0000
2023-08-09 2023-06-30 13F FUEL TECH COM 359523107 14,677 -8,914 -37.79 19 -36.67 0.0000
2023-05-12 2023-03-31 13F FUEL TECH COM 359523107 23,591 0 0.00 30 0.0000
2023-02-09 2022-12-31 13F FUEL TECH COM 359523107 23,591 0 0.00 0 -100.00 0.0000
2022-11-10 2022-09-30 13F FUEL TECH COM 359523107 23,591 -1,990 -7.78 28 -9.68 0.0000
2022-08-12 2022-06-30 13F FUEL TECH COM 359523107 25,581 0 0.00 31 -16.22 0.0000
2022-05-13 2022-03-31 13F FUEL TECH COM 359523107 25,581 0 0.00 37 2.78 0.0000
2022-02-09 2021-12-31 13F FUEL TECH COM 359523107 25,581 -21,401 -45.55 36 -56.10 0.0000
2021-11-12 2021-09-30 13F FUEL TECH COM 359523107 46,982 0 0.00 82 -25.45 0.0000
2021-08-12 2021-06-30 13F FUEL TECH COM 359523107 46,982 17,271 58.13 110 18.28 0.0000
2021-05-14 2021-03-31 13F FUEL TECH COM 359523107 29,711 13,090 78.76 93 45.31 0.0000
2021-03-08 2020-12-31 13F/A-2 FUEL TECH COM 359523107 16,621 -19,903 -54.49 64 25.49 0.0000
2021-02-11 2020-12-31 13F FUEL TECH COM 359523107 16,621 -19,903 64 23.1134
2019-08-13 2019-06-30 13F FUEL TECH COM 359523107 36,524 36,524 51 0.0000
2018-11-13 2018-09-30 13F FUEL TECH COM 359523107 0 -63,189 -100.00 0 -100.00
2018-08-10 2018-06-30 13F FUEL TECH COM 359523107 63,189 -12,410 -16.42 68 -25.27 0.0000
2018-05-11 2018-03-31 13F FUEL TECH COM 359523107 75,599 0 0.00 91 7.06 0.0000
2018-02-12 2017-12-31 13F FUEL TECH COM 359523107 75,599 -177,038 -70.08 85 -67.05 0.0000
2017-11-13 2017-09-30 13F FUEL TECH COM 359523107 252,637 -293,192 -53.71 258 -43.67 0.0001
2017-08-11 2017-06-30 13F FUEL TECH COM 359523107 545,829 -147,290 -21.25 458 -35.22 0.0002
2017-05-12 2017-03-31 13F FUEL TECH COM 359523107 693,119 -27,768 -3.85 707 -14.72 0.0003
2017-02-09 2016-12-31 13F FUEL TECH COM 359523107 720,887 -33,413 -4.43 829 -21.50 0.0004
2016-11-10 2016-09-30 13F FUEL TECH COM 359523107 754,300 -11,256 -1.47 1,056 -6.80 0.0006
2016-08-09 2016-06-30 13F FUEL TECH COM 359523107 765,556 -15,630 -2.00 1,133 -17.12 0.0007
2016-05-13 2016-03-31 13F FUEL TECH COM 359523107 781,186 -10,894 -1.38 1,367 -8.68 0.0008
2016-02-10 2015-12-31 13F FUEL TECH COM 359523107 792,080 -49,082 -5.84 1,497 -6.85 0.0009
2015-11-13 2015-09-30 13F FUEL TECH COM 359523107 841,162 -11,030 -1.29 1,607 -13.88 0.0011
2015-08-14 2015-06-30 13F FUEL TECH COM 359523107 852,192 -10,154 -1.18 1,866 -30.86 0.0011
2015-05-14 2015-03-31 13F FUEL TECH COM 359523107 862,346 300 0.03 2,699 -18.24 0.0017
2015-02-06 2014-12-31 13F FUEL TECH COM 359523107 862,046 7,325 0.86 3,301 -9.11 0.0022
2014-11-13 2014-09-30 13F FUEL TECH COM 359523107 854,721 -6,975 -0.81 3,632 -25.27 0.0026
2014-08-08 2014-06-30 13F FUEL TECH COM 359523107 861,696 91,269 11.85 4,860 26.17 0.0034
2014-05-14 2014-03-31 13F FUEL TECH COM 359523107 770,427 151,629 24.50 3,852 -12.22 0.0029
2014-02-12 2013-12-31 13F FUEL TECH COM 359523107 618,798 67,495 12.24 4,388 82.53 0.0034
2013-11-13 2013-09-30 13F FUEL TECH COM 359523107 551,303 -1,612 -0.29 2,404 13.50 0.0021
2013-08-15 2013-06-30 13F FUEL TECH COM 359523107 552,915 552,915 2,118 0.0020
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.