TGEN — Tecogen Inc New Institutional Holders · Q2 2026

Name: Who Owns TGEN? 81 Institutions Hold $58.9M (Q2 2026)
Creator: ko.io

Who owns Tecogen Inc New (TGEN)? 81 institutions reported holding $58.93M in SEC 13F filings for Q2 2026 (period ended 2026-06-30). Largest holders: Portolan Capital Management, LLC ($8.1M), Vanguard Group Inc ($4.7M), Bard Associates Inc ($3.6M).

Rank	Institution	Value	Shares	Change
1	Portolan Capital Management, LLC	$8.1M	1.6M	Added
2	VANGUARD GROUP INC	$4.7M	900,060	Added
3	BARD ASSOCIATES INC	$3.6M	682,221	Trimmed
4	Clear Harbor Asset Management, LLC	$3.4M	650,000	Hold
5	CITADEL ADVISORS LLC	$3.1M	585,576	Added
6	SUSQUEHANNA INTERNATIONAL GROUP, LLP	$2.8M	535,631	Added
7	PEAK6 LLC	$2.5M	471,900	New
8	JANE STREET GROUP, LLC	$2.3M	434,287	Added
9	Herald Investment Management Ltd	$2.2M	420,000	Hold
10	GRATIA CAPITAL, LLC	$2.0M	388,660	New
11	UBS Group AG	$1.9M	363,049	Added
12	Meros Investment Management, LP	$1.8M	353,487	Added
13	Palisades Investment Partners, LLC	$1.7M	323,090	Trimmed
14	MORGAN STANLEY	$1.6M	301,695	Added
15	RAYMOND JAMES FINANCIAL INC	$1.5M	290,260	Added
16	BlackRock, Inc.	$1.3M	251,464	Added
17	IMC-Chicago, LLC	$1.2M	238,600	Added
18	Huntleigh Advisors, Inc.	$1.1M	220,074	New
19	HEARTLAND ADVISORS INC	$950,562	182,100	New
20	GEODE CAPITAL MANAGEMENT, LLC	$944,802	180,870	Trimmed
21	GROUP ONE TRADING LLC	$856,456	164,072	Added
22	THOMPSON DAVIS & CO., INC.	$755,856	144,840	Added
23	NEW YORK STATE COMMON RETIREMENT FUND	$716,184	137,200	Hold
24	GSA CAPITAL PARTNERS LLP	$660,000	126,451	Added
25	Arosa Capital Management LP	$652,500	125,000	Trimmed

Source: SEC Form 13F filings · as of 2026-06-30