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FTEK · Fuel Tech, Inc. · Shareholders & Ownership

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$1.51 +0.05 (+3.42%)
Market Cap
$45.58M
Shares
31.22M
Volume · Oct 27 114.66K Avg daily vol (3M) 169.89K

Every disclosed holder of FTEK in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

Who Owns FTEK

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions
Holder group Shares % Out
Institutional (13F) 7,185,898 23.02%
Insiders (Forms 3, 4, 5) 634,955 2.03%
13D/G-only blocks 0 0.00%
Remaining 23,395,936 74.95%
Registered funds (N-PORT, not summed) 1,563,050 5.01%

Shares outstanding: 31,216,789, the issuer's latest cover-page count restated onto today's split basis.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of FTEK

# Holder Shares
1
GRACE & WHITE INC /NY
13F CIK 903064 · Registered investment adviser · Sep 30, 2026
1,541,307
2
RENAISSANCE TECHNOLOGIES LLC
13F CIK 1037389 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,102,406
3
VANGUARD CAPITAL MANAGEMENT LLC
13F CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,005,701
4
Peapod Lane Capital LLC
13F CIK 2050979 · Registered investment adviser · Sep 30, 2026
765,119
5
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
731,730
6
ARNONE VINCENT J
Insider CIK 1272727 · Mar 6, 2026
Director, President & CEO, issuer-wide
549,513
7
GEODE CAPITAL MANAGEMENT, LLC
13F CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
522,983
8
BlackRock, Inc.
13F CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
496,493
8.1
iShares Micro-Cap ETF
Fund S000004439 · Registered fund · Jun 30, 2026
iShares Trust, not summed
80,786
9
US BANCORP \DE\
13F CIK 36104 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
304,776
10
GSA CAPITAL PARTNERS LLP
13F CIK 1362033 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
295,141
11
VANGUARD EXTENDED MARKET INDEX FUND
Fund S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
255,314
12
TWO SIGMA INVESTMENTS, LP
13F CIK 1179392 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
168,457
13
Beartown Capital Management, LLC
13F CIK 1877162 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
146,689
14
VANGUARD FIDUCIARY TRUST CO
13F CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
133,459
15
STATE STREET CORP
13F CIK 93751 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
121,846
16
JANE STREET GROUP, LLC
13F CIK 1595888 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
109,483
17
THOMPSON DAVIS & CO., INC.
13F CIK 1017284 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
85,800
18
Jones Sharon L
Insider CIK 1734963 · Jun 4, 2025
Director, issuer-wide
83,972
19
ESSEX INVESTMENT MANAGEMENT CO LLC
13F CIK 201772 · Registered investment adviser · Sep 30, 2026
77,159
20
NORTHERN TRUST CORP
13F CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
60,333
21
Rothschild Wealth LLC
13F CIK 1811345 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
40,000
22
SUSQUEHANNA INTERNATIONAL GROUP, LLP
13F CIK 1446194 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
35,896
23
LexAurum Advisors, LLC
13F CIK 1729677 · Registered investment adviser · Sep 30, 2026
20,160
24
CITADEL ADVISORS LLC
13F CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
19,070
25
VANGUARD BALANCED INDEX FUND
Fund S000002560 · Registered fund · Jun 30, 2026
VANGUARD VALLEY FORGE FUNDS, not summed
18,657
26
Legato Capital Management LLC
13F CIK 1442641 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
18,165
27
UBS Group AG
13F CIK 1610520 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
18,015
28
GROUP ONE TRADING LLC
13F CIK 932540 · Broker-dealer · Jun 30, 2026
carried, not yet filed for the newest quarter
13,903
29
DIMENSIONAL FUND ADVISORS LP
13F CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
13,428
30
Covestor Ltd
13F CIK 1909846 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
12,426
31
HRT FINANCIAL LP
13F CIK 1475597 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
11,983
32
Scientech Research LLC
13F CIK 2011556 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
11,441
33
SIMPLEX TRADING, LLC
13F CIK 1488542 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
10,491
34
HighTower Advisors, LLC
13F CIK 1462245 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
10,440
35
Vanguard Global Advisers, LLC
13F CIK 1811242 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
5,500
36
1290 VT Micro Cap Portfolio
Fund S000044688 · Registered fund · Jun 30, 2026
EQ Advisors Trust, not summed
5,343
37
WELLS FARGO & COMPANY/MN
13F CIK 72971 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
2,019
38
New England Capital Financial Advisors LLC
13F CIK 1964652 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,000
39
Nuggihalli Ramesh
Insider CIK 1855199 · Sep 1, 2026
Chief Operating Officer, issuer-wide
1,470
40
OSAIC HOLDINGS, INC.
13F CIK 1677044 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
1,200
41
Blackstone Alternative Multi-Strategy Fund
Fund S000045538 · Registered fund · Jun 30, 2026
Blackstone Alternative Investment Funds, not summed
1,000
42
SBI Securities Co., Ltd.
13F CIK 1851815 · Non-US institution · Sep 30, 2026
719
43
Steward Partners Investment Advisory, LLC
13F CIK 1723397 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
600
44
TD Waterhouse Canada Inc.
13F CIK 1999606 · Unknown · Sep 30, 2026
500
45
Wilmington Savings Fund Society, FSB
13F CIK 900974 · Unknown · Sep 30, 2026
500
46
CKW FINANCIAL GROUP
13F CIK 1600403 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
200
47
NewEdge Advisors, LLC
13F CIK 1633516 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
50
48
MORGAN STANLEY
13F CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
21
49
FMR LLC
13F CIK 315066 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
18
49.1
Fidelity Nasdaq Composite Index ETF
Fund S000006011 · Registered fund · Aug 31, 2026
Fidelity Commonwealth Trust, not summed
237,850
49.2
Fidelity Extended Market Index Fund
Fund S000006021 · Registered fund · Aug 31, 2026
Fidelity Concord Street Trust, not summed
124,015
49.3
Fidelity Total Market Index Fund
Fund S000006026 · Registered fund · Aug 31, 2026
Fidelity Concord Street Trust, not summed
68,515
49.4
Fidelity Series Total Market Index Fund
Fund S000065248 · Registered fund · Aug 31, 2026
Fidelity Concord Street Trust, not summed
33,207
49.5
Fidelity Nasdaq Composite Index Fund
Fund S000055366 · Registered fund · Aug 31, 2026
Fidelity Concord Street Trust, not summed
6,633
50
Caitong International Asset Management Co., Ltd
13F CIK 1963355 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Key facts CIK 846913 CUSIP 359523107 13F (30d) 7 filings 7 filers Visit website Investor relations