---
schema_version: "secwatch.filing_event.v1"
accession: "0001537435-25-000141"
form_type: "8-K"
ticker: "TGEN"
cik: "0001537435"
company_name: "TECOGEN INC."
filed_at: "2025-11-12T23:59:59+00:00"
generated_at: "2026-05-16T21:11:23.190130+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Tecogen Reports Q3 2025 Revenue of $7.18M, Net Loss of $2.13M

## Summary
- Revenue increased 27.6% to $7.18M from $5.63M in Q3 2024, driven by 114.5% growth in product sales.
- Net loss widened to $2.13M ($0.07 per share) compared to $0.93M loss ($0.04 per share) in prior year.
- CEO disclosed LOI from a data center customer now considering three sites for larger portion of AI load.
- Cash and cash equivalents stood at $15.25M as of September 30, 2025, after July 2025 follow-on offering.
- Company invested $700k in new engines to test product improvements and improve service margins.

## SEC filing metadata
- accession: 0001537435-25-000141
- form_type: 8-K
- ticker: TGEN
- cik: 0001537435
- company_name: TECOGEN INC.
- filed_at: 2025-11-12T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1537435/000153743525000141/0001537435-25-000141-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1537435/000153743525000141/tgen-20251112.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001537435-25-000141
- JSON: https://secwatch.observer/filing/0001537435-25-000141.json
- Plain text: https://secwatch.observer/filing/0001537435-25-000141.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.