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Disclosery

FTEK FUEL TECH INC

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COM (common), issuer CIK 846913

44 managers (45 13F filers) reported a position in FTEK shares at 2025-12-31, 7,566,582 shares in all. 10 filers opened a position and 12 filers sold out during the quarter.

Managers
44
13F filers
45
New
10
Added
12
Reduced
8
Sold out
12
Shares held by filers
7,566,582

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

Each filer's latest stake. The shares are the aggregate the reporting persons state, which can include entities that file no 13F.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
GRACE & WHITE INC /NY1,485,883$2.32M0.41%-5,80013F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC1,147,995$1.79M<0.01%+249,08913F-HRTimeline
VANGUARD GROUP INCin group VANGUARD GROUP INC1,126,003$1.76M<0.01%+112,13913F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC518,939$810K<0.01%-4,87913F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC504,017$786K<0.01%+376,99413F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.410,364$640K<0.01%013F-HRTimelineGroup
Peapod Lane Capital LLC359,643$561K0.48%+2,70513F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\304,776$475K<0.01%013F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC260,782$407K<0.01%+23,86013F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…237,976$371K<0.01%+27,99013F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding193,660$302KnewTimeline
XTX Topco Ltdin group XTX Topco Ltd178,303$278K0.01%+122,29113F-HRTimelineGroup
Beartown Capital Management, LLC160,027$250K0.2%13F-HRTimeline
STATE STREET CORPin group STATE STREET CORP121,846$190K<0.01%+8,10013F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP81,011$126K<0.01%new13F-HRTimelineGroup
ESSEX INVESTMENT MANAGEMENT CO LLC77,250$121K0.02%013F-HRTimeline
INTEGRITY WEALTH ADVISORS, INC.70,000$95.2K0.07%013F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP51,199$79.7K<0.01%-3,20213F-HRTimelineGroup
GROUP ONE TRADING LLC42,509$66.3K<0.01%+12,30313F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC38,543$60.1K<0.01%+1,98813F-HRTimelineGroup
GSA CAPITAL PARTNERS LLP32,011$50K<0.01%-4,47913F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP31,435$49K<0.01%013F-HRTimelineGroup
Cresset Asset Management, LLC25,500$39.8K<0.01%013F-HRTimeline
Legato Capital Management LLC18,165$28.3K<0.01%013F-HRTimeline
Virtu Financial LLCin group Virtu Financial LLC17,254$27K<0.01%new13F-HRTimelineGroup
TWO SIGMA SECURITIES, LLC14,583$22.7K<0.01%new13F-HRTimeline
Covestor Ltd13,187$21K0.01%013F-HRTimeline
Quadrature Capital Ltdin group Quadrature Capital Ltd11,579$18.1K<0.01%new13F-HRTimelineGroup
HighTower Advisors, LLC10,440$16.3K<0.01%+4013F-HRTimeline
Founders Capital Management5,000$7.8K<0.01%013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…4,288$6.69K<0.01%new13F-HRTimelineGroup
SIMPLEX TRADING, LLC3,299$5.15K<0.01%-39,20213F-HRTimeline
NewEdge Advisors, LLC2,327$3.63K<0.01%-15,32613F-HRTimeline
New England Capital Financial Advisors …2,000$3.12K<0.01%013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.1,200$1.87K<0.01%013F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN1,150$1.79K<0.01%-2,50013F-HRTimelineGroup
SBI Securities Co., Ltd.719$1.12K<0.01%-11013F-HRTimeline
Steward Partners Investment Advisory, L…600$936<0.01%013F-HRTimeline
Wilmington Savings Fund Society, FSB500$780<0.01%013F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/280$437<0.01%+6313F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY21$33<0.01%new13F-HR/ATimelineGroup
FMR LLCin group FMR LLC18$28<0.01%new13F-HRTimelineGroup
CKW FINANCIAL GROUP200$00%013F-HRTimelineValue filed as zero, left out of ratios.
Motiv8 Investments LLC100$00%new13F-HRTimelineValue filed as zero, left out of ratios.

Events

  • GRACE & WHITE INC /NY reported 1,541,307 FTEK shares, 4.94% of the class, as of 2026-03-31, in a 13G/A filed 2026-10-07. 0000903064-26-000010

    Accepted , ingested