Tecogen Inc. (TGEN) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

0Shares Outstanding

0Shares held by institutions

$0Value of institutional holdings

15.54%Institutional ownership %

31,285.13%Shares Changed QoQ

30No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Tecogen Inc. (NYSE:TGEN) has 66 institutional investors with active 13F positions as of December 2025.

Their combined ownership stood at 26.4% of outstanding shares in December 2025, down from 29.0% in September 2025.
They increased total shares held in Tecogen by 1.78% from last quarter, and the number of investors in TGEN stayed flat annually.
During the quarter, 39 of these 66 funds increased positions in TGEN, 17 reduced exposure, and 10 held steady.
The aggregate institutional position in Tecogen amounted to 7.62Mn shares as of December 2025, up by 132.97K shares quarter on quarter, and up 7.3Mn shares year over year.
VANGUARD GROUP INC holds the largest position in TGEN at 871.84K shares as of December 31, 2025, or 3.03% of shares outstanding.
Top purchasers of TGEN stock for the quarter ending December 2025 included MARSHALL WACE, LLP (237.24K), JANE STREET GROUP, LLC (114.5K), UBS Group AG (95.37K), Point72 Asset Management, L.P. (83.91K), LPL Financial LLC (73.79K).
Top sellers of TGEN stock for the quarter ending December 2025 included Clear Harbor Asset Management, LLC (613.2K), CITADEL ADVISORS LLC (164.79K), Portolan Capital Management, LLC (150.0K), Goldman Sachs Group Inc (65.04K), Raymond James Financial Inc (58.13K).
Per Business Quant, the top 10 investors in TGEN for the quarter ending December 2025 include VANGUARD GROUP INC (871.84K), BARD ASSOCIATES INC (689.11K), Clear Harbor Asset Management, LLC (610.0K), Portolan Capital Management, LLC (445.81K), HERALD INVESTMENT MANAGEMENT Ltd (420.0K), Palisades Investment Partners, LLC (390.21K), Arosa Capital Management LP (350.0K), SUSQUEHANNA INTERNATIONAL GROUP, LLP (302.91K), GENDELL JEFFREY L (295.54K), MARSHALL WACE, LLP (286.32K).

66 Institutional Holders

0 Total Shares Held

Rows:

Download Data

Owner Name	Date	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	6,581	3.56%	$0.00
VANGUARD GROUP INC	31 Dec, 2025	1,400	0.16%	$0.00
UBS Group AG	31 Dec, 2025	95,371	994.69%	$0.00
BARD ASSOCIATES INC	31 Dec, 2025	-1,504	-0.22%	$0.00
Point72 Asset Management, L.P.	31 Dec, 2025	83,907	0.00%	$0.00
Clear Harbor Asset Management, LLC	31 Dec, 2025	-613,200	-50.13%	$0.00
PFG Investments, LLC	31 Dec, 2025	0	0.00%	$0.00
Portolan Capital Management, LLC	31 Dec, 2025	-149,996	-25.18%	$0.00
XTX Topco Ltd	31 Dec, 2025	54,763	0.00%	$0.00
HERALD INVESTMENT MANAGEMENT Ltd	31 Dec, 2025	-26,078	-5.85%	$0.00
Diametric Capital, LP	31 Dec, 2025	22,486	73.15%	$0.00
Palisades Investment Partners, LLC	31 Dec, 2025	13,618	3.62%	$0.00
Hidden Cove Wealth Management, LLC	31 Dec, 2025	7,045	50.17%	$0.00
Arosa Capital Management LP	31 Dec, 2025	62,500	21.74%	$0.00
Pathstone Holdings, LLC	31 Dec, 2025	0	0.00%	$0.00
SUSQUEHANNA INTERNATIONAL GROUP, LLP	31 Dec, 2025	50,876	20.19%	$0.00
Ark Wealth Advisors LLC	31 Dec, 2025	14,881	0.00%	$0.00
GENDELL JEFFREY L	31 Dec, 2025	51,919	21.31%	$0.00
EverSource Wealth Advisors, LLC	31 Dec, 2025	-1,000	-50.00%	$0.00
MARSHALL WACE, LLP	31 Dec, 2025	237,236	483.28%	$0.00

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