TGEN tangible book value per share history

Quarterly. Dates are reporting period ends; fiscal years can differ from calendar years.

Tecogen Inc. Common Stock Tangible Book Value Per Share — Quarterly
Period ending	Tangible Book Value Per Share
Jun 30, 2026	0.479
Mar 31, 2026	0.5437
Dec 31, 2025	0.6058
Sep 30, 2025	0.7867
Jun 30, 2025	0.1689
Mar 31, 2025	0.1901
Dec 31, 2024	0.2115
Sep 30, 2024	0.2424
Jun 30, 2024	0.275
Mar 31, 2024	0.3392
Dec 31, 2023	0.3812
Sep 30, 2023	0.4414
Jun 30, 2023	0.4536
Mar 31, 2023	0.5734
Dec 31, 2022	0.6271
Sep 30, 2022	0.6803
Jun 30, 2022	0.6856
Mar 31, 2022	0.7147
Dec 31, 2021	0.7059
Sep 30, 2021	0.6997
Jun 30, 2021	0.6384
Mar 31, 2021	0.6179
Dec 31, 2020	0.565
Sep 30, 2020	0.5899
Jun 30, 2020	0.5962
Mar 31, 2020	0.6432
Dec 31, 2019	0.6632
Sep 30, 2019	0.6828
Jun 30, 2019	0.7056
Mar 31, 2019	0.7182
Dec 31, 2018	0.6515
Sep 30, 2018	0.6545
Jun 30, 2018	0.6762
Mar 31, 2018	0.7049
Dec 31, 2017	0.7047
Sep 30, 2017	1.2487
Jun 30, 2017	1.3444
Mar 31, 2017	0.6775
Dec 31, 2016	0.6714
Sep 30, 2016	0.6769
Jun 30, 2016	0.528
Mar 31, 2016	0.5837
Dec 31, 2015	0.6736
Sep 30, 2015	0.5324
Jun 30, 2015	0.3153
Mar 31, 2015	0.3417
Dec 31, 2014	0.3057
Sep 30, 2014	0.2999
Jun 30, 2014	0.3986
Mar 31, 2014	0.3393
Dec 31, 2013	0.3842
Sep 30, 2013	0.0135
Jun 30, 2013	0.1111
Mar 31, 2013	0.201
Dec 31, 2012	0.2791
Sep 30, 2012	0.3483
Jun 30, 2012	0
Mar 31, 2012	0