Tecogen Inc/waltham Ma (TGEN) — 13F Holders Deep Dive (Q2 2026)

TGEN ranks #5376 out of 37503 tracked stocks by institutional interest, inside the more closely watched half of our coverage.

TGEN is a disclosed holding of Ken Griffin (Citadel Advisors LLC), one of the tracked superinvestors on AlphaSMO — it makes up 0.0% of that fund's own 13F portfolio.

70 institutions disclose a position in TGEN, but none treat it as a major bet — even Gratia Capital, LLC, its most concentrated holder, allocates just 1.2% of its own portfolio to it.

Ken Griffin has added to its TGEN position for two straight quarters, increasing it by $2.3M to reach $3.1M today.

Gendell Jeffrey L has trimmed its TGEN position for two straight quarters, cutting it by $1.2M while still holding $260.1K.

TGEN is down 1.6% today, but institutions show net buying of $15.4M this quarter — a divergence between today's price move and the underlying institutional flow.

TGEN reported a net loss of $10.4M over the trailing twelve months.

• Not yet profitable — net loss of $10.4M over the trailing twelve months
• Revenue declined 6.5% year over year
• Net income declined year over year, from -$4.2M to -$10.4M
• Operating cash flow was negative, using $9.9M in cash
• Current ratio of 3.12x — enough short-term assets to cover short-term liabilities
• Liabilities run 0.42x equity — within a conventional range