TECOGEN INC NEW

Ticker: TGEN CUSIP: 87876P201 Class: COM

Herald Investment Management Ltd's Holding History (CIK: 0001512022)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 420,000 Value ($000) $2,083 Avg Close $7.51 Range $4.62 - $12.07

Q3 2025

Shares 446,078 Value ($000) $3,899 Avg Close $8.02 Range $5.63 - $11.55

Q2 2025

Shares 321,078 Value ($000) $2,193 Avg Close $4.01 Range $1.81 - $7.85

Q4 2023

Shares 321,078 Value ($000) $260 Avg Close $0.84 Range $0.70 - $0.92

Q3 2023

Shares 321,078 Value ($000) $273 Avg Close $1.04 Range $0.83 - $1.29

Q2 2023

Shares 321,078 Value ($000) $321 Avg Close $1.07 Range $0.84 - $1.25

Q1 2023

Shares 321,078 Value ($000) $381 Avg Close $1.11 Range $0.70 - $1.27

Q4 2022

Shares 321,078 Value ($000) $0 Avg Close $1.22 Range $0.91 - $1.57

Q3 2022

Shares 321,078 Value ($000) $304 Avg Close $1.21 Range $0.93 - $1.55

Q2 2022

Shares 321,078 Value ($000) $362 Avg Close $1.43 Range $1.06 - $1.75

Q1 2022

Shares 321,078 Value ($000) $529 Avg Close $1.30 Range $0.70 - $1.80

Q4 2021

Shares 321,078 Value ($000) $385 Avg Close $1.55 Range $1.03 - $1.89

Q3 2021

Shares 321,078 Value ($000) $581 Avg Close $1.88 Range $1.70 - $2.40

Q2 2021

Shares 321,078 Value ($000) $600 Avg Close $1.73 Range $1.58 - $2.20

Q1 2021

Shares 321,078 Value ($000) $545 Avg Close $1.79 Range $1.14 - $2.58

Q4 2020

Shares 321,078 Value ($000) $391 Avg Close $1.19 Range $0.77 - $1.75

Q3 2020

Shares 321,078 Value ($000) $292 Avg Close $0.78 Range $0.69 - $0.97

Q2 2020

Shares 321,078 Value ($000) $224 Avg Close $0.88 Range $0.60 - $1.28

Q1 2020

Shares 321,078 Value ($000) $298 Avg Close $1.87 Range $0.92 - $2.49

Q4 2019

Shares 321,078 Value ($000) $690 Avg Close $2.39 Range $2.03 - $2.75

Q3 2019

Shares 321,078 Value ($000) $722 Avg Close $2.98 Range $2.11 - $3.75

Q2 2019

Shares 321,078 Value ($000) $1,114 Avg Close $3.69 Range $3.36 - $4.20

Q1 2019

Shares 321,078 Value ($000) $1,220 Avg Close $3.85 Range $3.45 - $4.15

Q4 2018

Shares 321,078 Value ($000) $1,165 Avg Close $3.53 Range $2.95 - $4.00

Q3 2018

Shares 321,078 Value ($000) $1,011 Avg Close $3.29 Range $2.94 - $3.86

Q2 2018

Shares 321,078 Value ($000) $1,159 Avg Close $3.45 Range $2.80 - $4.20

Q1 2018

Shares 210,526 Value ($000) $599 Avg Close $2.43 Range $2.05 - $3.09

Q4 2017

Shares 210,526 Value ($000) $555 Avg Close $2.78 Range $2.20 - $3.38

Q3 2017

Shares 210,526 Value ($000) $671 Avg Close $3.24 Range $2.95 - $3.50

Q1 2017

Shares 210,526 Value ($000) $798 Avg Close $3.93 Range $3.50 - $4.35

Q3 2014

Shares 210,526 Value ($000) $1,455 Avg Close $6.04 Range $4.97 - $8.18

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	420,000	$2,083	$7.51	$4.62 - $12.07
Q3 2025	446,078	$3,899	$8.02	$5.63 - $11.55
Q2 2025	321,078	$2,193	$4.01	$1.81 - $7.85
Q4 2023	321,078	$260	$0.84	$0.70 - $0.92
Q3 2023	321,078	$273	$1.04	$0.83 - $1.29
Q2 2023	321,078	$321	$1.07	$0.84 - $1.25
Q1 2023	321,078	$381	$1.11	$0.70 - $1.27
Q4 2022	321,078	$0	$1.22	$0.91 - $1.57
Q3 2022	321,078	$304	$1.21	$0.93 - $1.55
Q2 2022	321,078	$362	$1.43	$1.06 - $1.75
Q1 2022	321,078	$529	$1.30	$0.70 - $1.80
Q4 2021	321,078	$385	$1.55	$1.03 - $1.89
Q3 2021	321,078	$581	$1.88	$1.70 - $2.40
Q2 2021	321,078	$600	$1.73	$1.58 - $2.20
Q1 2021	321,078	$545	$1.79	$1.14 - $2.58
Q4 2020	321,078	$391	$1.19	$0.77 - $1.75
Q3 2020	321,078	$292	$0.78	$0.69 - $0.97
Q2 2020	321,078	$224	$0.88	$0.60 - $1.28
Q1 2020	321,078	$298	$1.87	$0.92 - $2.49
Q4 2019	321,078	$690	$2.39	$2.03 - $2.75
Q3 2019	321,078	$722	$2.98	$2.11 - $3.75
Q2 2019	321,078	$1,114	$3.69	$3.36 - $4.20
Q1 2019	321,078	$1,220	$3.85	$3.45 - $4.15
Q4 2018	321,078	$1,165	$3.53	$2.95 - $4.00
Q3 2018	321,078	$1,011	$3.29	$2.94 - $3.86
Q2 2018	321,078	$1,159	$3.45	$2.80 - $4.20
Q1 2018	210,526	$599	$2.43	$2.05 - $3.09
Q4 2017	210,526	$555	$2.78	$2.20 - $3.38
Q3 2017	210,526	$671	$3.24	$2.95 - $3.50
Q1 2017	210,526	$798	$3.93	$3.50 - $4.35
Q3 2014	210,526	$1,455	$6.04	$4.97 - $8.18