Who Owns TECOGEN INC NEW COM NEW (TGEN)? -- Institutional Holders (2026-06-30)
81 institutions reported holding $58.9M of TECOGEN INC NEW COM NEW (TGEN) in SEC 13F filings for 2026-06-30. Largest institutional holders: Portolan Capital Management, LLC ($8.1M), VANGUARD GROUP INC ($4.7M), BARD ASSOCIATES INC ($3.6M), Clear Harbor Asset Management, LLC ($3.4M), CITADEL ADVISORS LLC ($3.1M). Source: SEC Form 13F.
| 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