---
schema_version: "secwatch.filing_event.v1"
accession: "0001537435-23-000157"
form_type: "8-K"
ticker: "TGEN"
cik: "0001537435"
company_name: "TECOGEN INC."
filed_at: "2023-12-14T23:59:59+00:00"
generated_at: "2026-06-07T12:47:52.105460+00:00"
event_type: "leadership"
sentiment: "negative"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Tecogen announces death of director Fred Holubow on December 9, 2023

## Summary
- Director Fred Holubow passed away on December 9, 2023; board informed on December 12.
- Holubow had served as director and Audit Committee member since June 2020.
- Background included General Partner at Starbow Partners, formerly at William Harris Investors and co-founder of Pegasus Associates.
- No successor has been announced in the filing.

## SEC filing metadata
- accession: 0001537435-23-000157
- form_type: 8-K
- ticker: TGEN
- cik: 0001537435
- company_name: TECOGEN INC.
- filed_at: 2023-12-14T23:59:59+00:00
- event_type: leadership
- sentiment: negative
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1537435/000153743523000157/0001537435-23-000157-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1537435/000153743523000157/tgen-20231212.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001537435-23-000157
- JSON: https://secwatch.observer/filing/0001537435-23-000157.json
- Plain text: https://secwatch.observer/filing/0001537435-23-000157.txt

## Key facts
- Executive change
  Fred Holubow departed as director at TECOGEN INC..
  - Action: death
  - Role: director
  source text: the Board of Directors of Tecogen Inc. is deeply saddened to announce that, on December 12, 2023, it was informed of the death, on December 9, 2023, of Mr. Fred Holubow, a director of the company and a member of the board’s Audit Committee since June 2020.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1537435/000153743523000157/0001537435-23-000157-index.htm

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