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Disclosery

TGEN TECOGEN INC NEW

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COM NEW (common), issuer CIK 1537435

58 managers (62 13F filers) reported a position in TGEN shares at 2026-03-31, 7,788,709 shares in all. 12 filers opened a position and 17 filers sold out during the quarter.

Managers
58
13F filers
62
New
12
Added
16
Reduced
19
Sold out
17
Shares held by filers
7,788,709

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

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, 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
VANGUARD GROUP INCgroup of 3 filers holding871,840$2.23MnewTimeline
BARD ASSOCIATES INC688,309$1.76M0.44%-79813F-HRTimeline
Clear Harbor Asset Management, LLC650,000$1.66M0.12%+40,00013F-HRTimeline
Portolan Capital Management, LLCin group Portolan Capital Management, …443,555$1.14M0.06%-2,25513F-HRTimelineGroup
HERALD INVESTMENT MANAGEMENT Ltd420,000$1.08M0.15%013F-HRTimeline
Arosa Capital Management LP350,000$896K0.58%013F-HRTimeline
Palisades Investment Partners, LLC333,907$855K0.34%-56,30513F-HRTimeline
UBS Group AGgroup of 2 filers holding321,419$823K+216,460Timeline
Meros Investment Management, LP291,705$747K0.32%new13F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC272,300$697K<0.01%+218,00013F-HRTimeline
GENDELL JEFFREY Lin group GENDELL JEFFREY L245,541$629K0.01%-50,00013F-HRTimelineGroup
Integrated Wealth Concepts LLC218,380$559K<0.01%new13F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP207,467$531K<0.01%-78,85813F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC192,002$492K<0.01%+14,08813F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC185,794$476K<0.01%+86,04013F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.184,779$473K<0.01%-6,58113F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC147,472$378K<0.01%+98,55213F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND137,200$351K<0.01%013F-HRTimeline
HighTower Advisors, LLC132,665$340K<0.01%013F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC117,342$300K<0.01%-90,26513F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…109,457$280K<0.01%-193,45413F-HRTimelineGroup
THOMPSON DAVIS & CO., INC.99,000$253K0.17%-21,45013F-HRTimeline
GSA CAPITAL PARTNERS LLP94,170$241K0.01%+74,73813F-HRTimeline
Granahan Investment Management, LLC88,496$227K0.01%-89,32613F-HRTimeline
GROUP ONE TRADING LLC83,922$215K0.01%+27,34413F-HRTimeline
Apis Capital Advisors, LLC77,000$197K0.03%new13F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY76,736$196K<0.01%+6,75813F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP69,226$177K<0.01%013F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP67,418$173K<0.01%-151,21013F-HRTimelineGroup
PFG Investments, LLC62,523$160K0.01%013F-HRTimeline
GAMCO Investors (Gabelli)group of 2 filers holding60,000$154K+20,000Timeline
CORSAIR CAPITAL MANAGEMENT, L.P.55,017$141K0.02%013F-HRTimeline
Diametric Capital, LP53,131$136K0.04%-9613F-HRTimeline
SIMPLEX TRADING, LLC41,332$106K<0.01%-5,19913F-HRTimeline
LPL Financial LLC41,251$106K<0.01%-32,54213F-HRTimeline
HARBOR CAPITAL ADVISORS, INC.39,973$102K0.01%-47413F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP37,681$96.5K<0.01%013F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC35,500$90.9K<0.01%new13F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC33,048$84.6K<0.01%+7,54813F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC25,106$64.3K<0.01%-42,61813F-HRTimelineGroup
Pathstone Holdings, LLCin group Pathstone Holdings, LLC18,725$47.9K<0.01%013F-HRTimelineGroup
SHIKIAR ASSET MANAGEMENT INC17,650$45K0.01%+4,35013F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC16,124$41.3K<0.01%+4,35013F-HRTimeline
HRT FINANCIAL LP15,071$38K<0.01%new13F-HRTimeline
IMC-Chicago, LLC13,650$34.9K<0.01%-29,30513F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP11,163$28.6K<0.01%new13F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…10,189$26.1K<0.01%new13F-HRTimelineGroup
CITIZENS FINANCIAL GROUP INC/RIin group CITIZENS FINANCIAL GROUP INC/…10,000$25.6K<0.01%new13F-HRTimelineGroup
NewEdge Advisors, LLC4,419$11.3K<0.01%+4,33113F-HR/ATimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA3,143$8K<0.01%-82,40213F-HRTimelineGroup
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…2,500$6.4K<0.01%+1,50013F-HR/ATimelineGroup
Advisory Services Network, LLC2,490$6.37K<0.01%new13F-HRTimeline
Federation des caisses Desjardins du Qu…562$1.44K<0.01%013F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/500$1.28K<0.01%+27013F-HRTimelineGroup
State of Wyoming494$1.26K<0.01%-4413F-HRTimeline
Fortitude Family Office, LLC181$463<0.01%new13F-HRTimeline
SBI Securities Co., Ltd.120$307<0.01%+313F-HRTimeline
MAI Capital Management64$164<0.01%013F-HRTimeline