HERALD INVESTMENT MANAGEMENT Ltd

Holdings History for TECOGEN INC. - Common Stock, $0.001 par value (TGEN)

Symbol: TGEN on NYSE
Investment type: Equity / Common Stock, $0.001 par value

Shares, Excluding Options vs Price

Value, Excluding Options

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
31 Dec 2025	0.27%	-0.02%	$2,083,200	420,000	-26,078	-5.8%	$4.96	Q4 2025
30 Sep 2025	0.52%	+0.15%	$3,898,722	446,078	+125,000	+39%	$8.74	Q3 2025
30 Jun 2025	0.33%	+0.33%	$2,192,963	321,078	+321,078	NEW	$6.83	Q2 2025
31 Mar 2024		-0.05%	$0	0	-321,078	-100%	$3.60	Q1 2024
31 Dec 2023	0.05%	0%	$260,073	321,078	0		$0.81	Q4 2023
30 Sep 2023	0.06%	0%	$272,916	321,078	0		$0.85	Q3 2023
30 Jun 2023	0.06%	0%	$320,917	321,078	0		$1.00	Q2 2023
31 Mar 2023	0.08%	0%	$381,280	321,078	0		$1.19	Q1 2023
31 Dec 2022	0.1%	0%	$401,000	321,078	0		$1.25	Q4 2022
30 Sep 2022	0.07%	0%	$304,000	321,078	0		$0.95	Q3 2022
30 Jun 2022	0.08%	0%	$362,000	321,078	0		$1.13	Q2 2022
31 Mar 2022	0.1%	0%	$529,000	321,078	0		$1.65	Q1 2022
31 Dec 2021	0.06%	0%	$385,000	321,078	0		$1.20	Q4 2021
30 Sep 2021	0.1%	0%	$581,000	321,078	0		$1.81	Q3 2021
30 Jun 2021	0.1%	0%	$600,000	321,078	0		$1.87	Q2 2021
31 Mar 2021	0.09%	0%	$545,000	321,078	0		$1.70	Q1 2021
31 Dec 2020	0.07%	0%	$391,000	321,078	0		$1.22	Q4 2020
30 Sep 2020	0.06%	0%	$292,000	321,078	0		$0.91	Q3 2020
30 Jun 2020	0.05%	0%	$224,000	321,078	0		$0.70	Q2 2020
31 Mar 2020	0.09%	0%	$298,000	321,078	0		$0.93	Q1 2020
31 Dec 2019	0.18%	0%	$690,000	321,078	0		$2.15	Q4 2019
30 Sep 2019	0.21%	0%	$722,000	321,078	0		$2.25	Q3 2019
30 Jun 2019	0.31%	0%	$1,114,000	321,078	0		$3.47	Q2 2019
31 Mar 2019	0.31%	0%	$1,220,000	321,078	0		$3.80	Q1 2019
31 Dec 2018	0.37%	0%	$1,165,000	321,078	0		$3.63	Q4 2018
30 Sep 2018	0.26%	0%	$1,011,000	321,078	0		$3.15	Q3 2018
30 Jun 2018	0.32%	+0.11%	$1,159,000	321,078	+110,552	+53%	$3.61	Q2 2018
31 Mar 2018	0.18%	0%	$599,000	210,526	0		$2.85	Q1 2018
31 Dec 2017	0.17%	0%	$555,000	210,526	0		$2.64	Q4 2017
30 Sep 2017	0.22%	+0.22%	$671,000	210,526	+210,526	NEW	$3.19	Q3 2017
30 Jun 2017		-0.3%	$0	0	-210,526	-100%	$3.60	Q2 2017
31 Mar 2017	0.3%	+0.3%	$798,000	210,526	+210,526	NEW	$3.79	Q1 2017
30 Sep 2014		0%	$1,455,000	210,526	0		$6.91 ^*	Q3 2014

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.