Granahan Investment Management, LLC

Position in TGEN — Tecogen Inc.

CIK 1026710 WALTHAM, MA

Position in TGEN

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$226,549

-$651,891 QoQ

Shares Held

88,496

-50.2% QoQ

Ownership

0.296%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

#25

of 62 holders

Holding Since

Sep 2025

3 quarters on record

Voting authority Sole 93% Shared 0% None 7%

Industrials · as of Mar 31, 2026

Granahan Investment Management, LLC holds $70,646,756 across 4 Electrical Equipment & Parts names. TGEN ranks #4 (0.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	FPS	Forgent Power Solutions, Inc.	2,071,084	$60,620,628
2	ENVX	Enovix Corp	1,589,586	$8,234,055
3	ELVA	Electrovaya Inc.	200,195	$1,565,524
4	TGEN	Tecogen Inc. This page	88,496	$226,549

3 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$226,549	88,496	-50.2%	Shares	Sole	2026-05-15
2025-12-31	$878,440	177,822	+58.3%	Shares	Sole	2026-02-17
2025-09-30	$989,697	112,338	—	Shares	Sole	2025-11-14
No filing history on record for this holder in this stock.