Tecogen Inc. (TGEN) ownership: Ann Marie Pacheco, as Trustee 25% · institutions 33% · index and ETF funds 2% (13F 2026-06-30). Insider activity, 90 days: 0 sales, 0 open-market buys. SEC EDGAR first-party data.
| Holder | Shares | Market Value | % Outstanding | Reported |
|---|---|---|---|---|
| Portolan Capital Management, LLC | 1551113.00 | $8.10M | 5.2% | 2026-06-30 |
| Vanguard | 900060.00 | $4.70M | 3.0% | 2026-06-30 |
| Bard Associates Inc | 682221.00 | $3.56M | 2.3% | 2026-06-30 |
| Clear Harbor Asset Management, LLC | 650000.00 | $3.39M | 2.2% | 2026-06-30 |
| HERALD INVESTMENT MANAGEMENT Ltd | 420000.00 | $2.19M | 1.4% | 2026-06-30 |
| Gratia Capital, LLC | 388660.00 | $2.03M | 1.3% | 2026-06-30 |
| UBS | 364632.00 | $1.90M | 1.2% | 2026-06-30 |
| Meros Investment Management, LP | 353487.00 | $1.85M | 1.2% | 2026-06-30 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-06-26 | |
| Sell | null | 2026-06-26 | |
| Sell | null | 2026-06-26 | |
| Sell | null | 2026-06-26 | |
| Sell | null | 2026-06-26 | |
| Sell | null | 2026-06-26 | |
| Sell | null | 2026-06-26 | |
| Sell | null | 2026-06-26 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.