LEWIS EARL R

Track

Insider profile

Performance

Overall performance
3.5
Performance over holding periods
3.5
30 days 90 days 120 days
Average return 10% 8.2% 15.1%
Success rate 58% 68% 82%
Transactions
29 100% Buy
34 71% Buy
47 69% Buy
Ranking by holding-period performance
LEWIS EARL R's trades of Tecogen Inc's stock


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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date Company B/S Transaction type Nb. shares
Price
Value 		Number of shares Price Value Details
2026-03-27 2026-03-27
US Tecogen Inc (TGEN)
B Purchase
30,947 +25.0%
178.79
US$3,856,830 		30,947 +25.0% 178.79 US$3,856,830
2026-03-27 2026-03-26
US Tecogen Inc (TGEN)
B Purchase
9,906 +36.4%
365.18
US$890,096 		9,906 +36.4% 365.18 US$890,096
2024-12-06 2024-11-22
US Tecogen Inc (TGEN)
B Purchase
89,841 +21.7%
143.49
US$2,722,208 		89,841 +21.7% 143.49 US$2,722,208
2024-07-17 2024-07-15
US Tecogen Inc (TGEN)
B Purchase
10,000 +1.6%
0.68
US$6,800 		10,000 +1.6% 0.68 US$6,800
2024-07-15 2024-07-15
US Tecogen Inc (TGEN)
B Purchase
10,000 +1.6%
0.68
US$6,800 		10,000 +1.6% 0.68 US$6,800
2024-05-03 2024-05-01
US Tecogen Inc (TGEN)
B Purchase
5,000 +0.8%
0.75
US$3,750 		5,000 +0.8% 0.75 US$3,750
2024-04-24 2024-04-24
US Tecogen Inc (TGEN)
B Purchase
10,000 +1.7%
0.68
US$6,800 		10,000 +1.7% 0.68 US$6,800
2024-01-25 2024-01-24
US Tecogen Inc (TGEN)
B Purchase
9,152 +1.7%
0.78
US$7,139 		9,152 +1.7% 0.78 US$7,139
2024-01-23 2024-01-23
US Tecogen Inc (TGEN)
B Purchase
10,000 +1.8%
0.68
US$6,800 		10,000 +1.8% 0.68 US$6,800
2023-10-18 2023-10-18
US Tecogen Inc (TGEN)
B Purchase
25,000 +4.8%
0.91
US$22,750 		25,000 +4.8% 0.91 US$22,750
2024-12-06 2023-10-09
US Tecogen Inc (TGEN)
B Purchase
2,000 +0.3%
0.80
US$1,600 		2,000 +0.3% 0.80 US$1,600
2023-10-11 2023-10-09
US Tecogen Inc (TGEN)
B Purchase
2,000 +0.4%
0.80
US$1,600 		2,000 +0.4% 0.80 US$1,600
2023-09-11 2023-09-08
US Tecogen Inc (TGEN)
B Purchase
10,000 +2.0%
0.95
US$9,500 		10,000 +2.0% 0.95 US$9,500
2023-09-06 2023-09-05
US Tecogen Inc (TGEN)
B Purchase
10,000 +2.0%
1.00
US$10,000 		10,000 +2.0% 1.00 US$10,000
2023-08-17 2023-08-14
US Tecogen Inc (TGEN)
B Purchase
1,500 +0.3%
1.00
US$1,500 		1,500 +0.3% 1.00 US$1,500
2023-05-16 2023-05-15
US Tecogen Inc (TGEN)
B Purchase
10,000 +2.1%
0.96
US$9,600 		10,000 +2.1% 0.96 US$9,600
2023-03-30 2023-03-29
US Tecogen Inc (TGEN)
B Purchase
10,000 +2.1%
1.18
US$11,800 		10,000 +2.1% 1.18 US$11,800
2023-03-30 2023-03-29
US Tecogen Inc (TGEN)
B Purchase
10,000 +2.2%
1.17
US$11,700 		10,000 +2.2% 1.17 US$11,700
2023-03-30 2023-03-28
US Tecogen Inc (TGEN)
B Purchase
3,200 +0.7%
1.02
US$3,264 		3,200 +0.7% 1.02 US$3,264
2023-03-30 2023-03-28
US Tecogen Inc (TGEN)
B Purchase
700 +0.2%
1.02
US$710 		700 +0.2% 1.02 US$710
2023-03-30 2023-03-28
US Tecogen Inc (TGEN)
B Purchase
2,100 +0.5%
1.03
US$2,163 		2,100 +0.5% 1.03 US$2,163
2023-03-30 2023-03-27
US Tecogen Inc (TGEN)
B Purchase
806 +0.2%
0.98
US$794 		806 +0.2% 0.98 US$794
2023-03-30 2023-03-24
US Tecogen Inc (TGEN)
B Purchase
2,694 +0.6%
0.93
US$2,505 		2,694 +0.6% 0.93 US$2,505
2023-03-30 2023-03-24
US Tecogen Inc (TGEN)
B Purchase
5,500 +1.2%
0.92
US$5,060 		5,500 +1.2% 0.92 US$5,060
2023-03-23 2023-03-22
US Tecogen Inc (TGEN)
B Purchase
5,000 +1.1%
0.87
US$4,350 		5,000 +1.1% 0.87 US$4,350
2023-03-21 2023-03-20
US Tecogen Inc (TGEN)
B Purchase
5,000 +1.1%
0.87
US$4,350 		5,000 +1.1% 0.87 US$4,350
2023-03-21 2023-03-20
US Tecogen Inc (TGEN)
B Purchase
10,000 +2.3%
0.90
US$9,000 		10,000 +2.3% 0.90 US$9,000
2022-09-29 2022-09-29
US Tecogen Inc (TGEN)
B Purchase
5,000 +1.2%
0.97
US$4,850 		5,000 +1.2% 0.97 US$4,850
2022-09-29 2022-09-28
US Tecogen Inc (TGEN)
B Purchase
8,183 +2.0%
0.95
US$7,774 		8,183 +2.0% 0.95 US$7,774
2020-11-05 2020-11-04
S Sale
30,000 -5.6%
35.93
US$1,077,900 		30,000 -5.6% 35.93 US$1,077,900
2020-06-09 2020-06-08
US Tecogen Inc (TGEN)
B Purchase
11,711 +11.7%
0.82
US$9,603 		11,711 +11.7% 0.82 US$9,603
2019-05-01 2019-04-29
S Sale
10,000 -5.4%
52.48
US$524,800 		10,000 -5.4% 52.48 US$524,800
2019-04-30 2019-04-26
S Sale
23,116 -4.6%
51.33
US$1,186,544 		23,116 -4.6% 51.33 US$1,186,544
2019-03-01 2019-03-01
S Sale
100,000 -16.6%
51.37
US$5,137,000 		100,000 -16.6% 51.37 US$5,137,000
2019-02-27 2019-02-26
S Sale
132,100 -20.8%
52.11
US$6,883,731 		132,100 -20.8% 52.11 US$6,883,731