Tecogen Inc.

TGEN

Exchange: NYSE
Industry: Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip
SEC CIK: 0001537435

SEC filings (opens in a new tab)

No open-market purchases or sales by Tecogen Inc. insiders were filed in the last 90 days; 69 institutions reported holding it in 13F filings for Q2 2026, worth $49.5M in total; no superinvestor holds it.

Q1 2022 vs. Q4 2021

How the institutions holding Tecogen Inc. changed between Q4 2021 and Q1 2022.

All holders in Q1 2022 All holders in Q4 2021

13F holders of TGEN: Q4 2021 compared with Q1 2022
Measure	Q4 2021	Q1 2022	Change
Holders	2	1	−1
Shares	331.5K	321.1K	−10.4K (−3.1%)
Value	$397.0K	$529.0K	+$132.0K (+33.2%)

New holders (0)

Institutions that held Tecogen Inc. at the end of Q1 2022 but not at the end of Q4 2021.

None.

Sold out (1)

Institutions that held Tecogen Inc. at the end of Q4 2021 and filed for Q1 2022 without it.

Institutions that sold out of TGEN in Q1 2022
Institution	Shares, Q4 2021	Value, Q4 2021
Alan B. Lancz & Associates, Inc.	10,404	$12.0K