Get access to advanced features

Subscribe to better monitor insider activity
Stock chart
Ticker: TGEN Exchange: NAS


Subscribe to get access to the transaction volume chart and in-chart transaction details
• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PS: Planned sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Total value Details
May 26, 2023 May 26, 2023 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
1,000 +0.2%
1.17
1,170 USD 		1,000 +0.2% 1.17 1,170 USD
May 26, 2023 May 25, 2023 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
1,000 +0.2%
1.17
1,170 USD 		1,000 +0.2% 1.17 1,170 USD
May 26, 2023 May 23, 2023 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
1,000 +0.2%
1.17
1,170 USD 		1,000 +0.2% 1.17 1,170 USD
May 16, 2023 May 15, 2023 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
3,649 +0.9%
1.00
3,645 USD 		3,649 +0.9% 1.00 3,645 USD
May 16, 2023 May 15, 2023 B Purchase

LEWIS EARL R

Non-Executive Director
10,000 +2.1%
0.96
9,600 USD 		10,000 +2.1% 0.96 9,600 USD
March 30, 2023 March 29, 2023 B Purchase

LEWIS EARL R

Non-Executive Director
10,000 +2.1%
1.18
11,800 USD 		10,000 +2.1% 1.18 11,800 USD
March 30, 2023 March 29, 2023 B Purchase

LEWIS EARL R

Non-Executive Director
10,000 +2.2%
1.17
11,700 USD 		10,000 +2.2% 1.17 11,700 USD
March 30, 2023 March 28, 2023 B Purchase

LEWIS EARL R

Non-Executive Director
3,200 +0.7%
1.02
3,264 USD 		3,200 +0.7% 1.02 3,264 USD
March 30, 2023 March 28, 2023 B Purchase

LEWIS EARL R

Non-Executive Director
700 +0.2%
1.02
711 USD 		700 +0.2% 1.02 711 USD
March 30, 2023 March 28, 2023 B Purchase

LEWIS EARL R

Non-Executive Director
2,100 +0.5%
1.03
2,163 USD 		2,100 +0.5% 1.03 2,163 USD
March 29, 2023 March 28, 2023 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
17,700 +4.5%
1.00
17,700 USD 		17,700 +4.5% 1.00 17,700 USD
March 30, 2023 March 27, 2023 B Purchase

LEWIS EARL R

Non-Executive Director
806 +0.2%
0.98
794 USD 		806 +0.2% 0.98 794 USD
March 27, 2023 March 27, 2023 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
11,419 +3.0%
1.00
11,393 USD 		11,419 +3.0% 1.00 11,393 USD
March 30, 2023 March 24, 2023 B Purchase

LEWIS EARL R

Non-Executive Director
2,694 +0.6%
0.93
2,505 USD 		2,694 +0.6% 0.93 2,505 USD
March 30, 2023 March 24, 2023 B Purchase

LEWIS EARL R

Non-Executive Director
5,500 +1.2%
0.92
5,060 USD 		5,500 +1.2% 0.92 5,060 USD
March 24, 2023 March 24, 2023 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
50,000 +14.9%
0.92
45,995 USD 		50,000 +14.9% 0.92 45,995 USD
March 23, 2023 March 22, 2023 B Purchase

LEWIS EARL R

Non-Executive Director
5,000 +1.1%
0.87
4,350 USD 		5,000 +1.1% 0.87 4,350 USD
March 21, 2023 March 21, 2023 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
10,000 +3.1%
0.88
8,800 USD 		10,000 +3.1% 0.88 8,800 USD
March 27, 2023 March 20, 2023 B Purchase

Rangesh Abinand

Chief Executive Officer

Executive Director
1,000 +14.7%
0.90
900 USD 		1,000 +14.7% 0.90 900 USD
March 27, 2023 March 20, 2023 B Purchase

Rangesh Abinand

Chief Executive Officer

Executive Director
800 +13.3%
0.85
676 USD 		800 +13.3% 0.85 676 USD
March 21, 2023 March 20, 2023 B Purchase

LEWIS EARL R

Non-Executive Director
5,000 +1.1%
0.87
4,350 USD 		5,000 +1.1% 0.87 4,350 USD
March 21, 2023 March 20, 2023 B Purchase

LEWIS EARL R

Non-Executive Director
10,000 +2.3%
0.90
9,000 USD 		10,000 +2.3% 0.90 9,000 USD
March 21, 2023 March 20, 2023 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
10,000 +3.2%
0.84
8,400 USD 		10,000 +3.2% 0.84 8,400 USD
Oct. 19, 2022 Oct. 19, 2022 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
5,000 +1.6%
1.00
5,000 USD 		5,000 +1.6% 1.00 5,000 USD
Oct. 18, 2022 Oct. 17, 2022 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
5,000 +1.6%
0.98
4,898 USD 		5,000 +1.6% 0.98 4,898 USD
Oct. 12, 2022 Oct. 11, 2022 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
5,000 +1.7%
0.96
4,800 USD 		5,000 +1.7% 0.96 4,800 USD
Oct. 12, 2022 Oct. 10, 2022 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
5,000 +1.7%
0.96
4,800 USD 		5,000 +1.7% 0.96 4,800 USD
Sept. 29, 2022 Sept. 29, 2022 B Purchase

LEWIS EARL R

Non-Executive Director
5,000 +1.2%
0.97
4,850 USD 		5,000 +1.2% 0.97 4,850 USD
Sept. 29, 2022 Sept. 28, 2022 B Purchase

LEWIS EARL R

Non-Executive Director
8,183 +2.0%
0.95
7,774 USD 		8,183 +2.0% 0.95 7,774 USD
Sept. 12, 2022 Sept. 8, 2022 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
5,000 +1.7%
1.17
5,828 USD 		5,000 +1.7% 1.17 5,828 USD
Sept. 2, 2022 Sept. 2, 2022 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
5,000 +1.8%
1.10
5,500 USD 		5,000 +1.8% 1.10 5,500 USD
Sept. 2, 2022 Sept. 1, 2022 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
5,000 +1.8%
1.10
5,498 USD 		5,000 +1.8% 1.10 5,498 USD
Sept. 2, 2022 Aug. 31, 2022 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
5,000 +1.8%
1.10
5,500 USD 		5,000 +1.8% 1.10 5,500 USD
Aug. 30, 2022 Aug. 30, 2022 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
5,000 +1.9%
1.14
5,700 USD 		5,000 +1.9% 1.14 5,700 USD
Aug. 30, 2022 Aug. 29, 2022 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
5,000 +1.9%
1.23
6,168 USD 		5,000 +1.9% 1.23 6,168 USD
Aug. 30, 2022 Aug. 26, 2022 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
5,000 +1.9%
1.24
6,187 USD 		5,000 +1.9% 1.24 6,187 USD
Aug. 25, 2022 Aug. 25, 2022 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
5,000 +2.0%
1.25
6,250 USD 		5,000 +2.0% 1.25 6,250 USD
Aug. 25, 2022 Aug. 24, 2022 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
2,300 +0.9%
1.24
2,852 USD 		2,300 +0.9% 1.24 2,852 USD
Aug. 25, 2022 Aug. 24, 2022 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
2,700 +1.1%
1.23
3,315 USD 		2,700 +1.1% 1.23 3,315 USD
Aug. 25, 2022 Aug. 23, 2022 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
5,000 +2.0%
1.25
6,250 USD 		5,000 +2.0% 1.25 6,250 USD
Aug. 23, 2022 Aug. 22, 2022 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
5,000 +2.1%
1.21
6,050 USD 		5,000 +2.1% 1.21 6,050 USD
June 9, 2020 June 8, 2020 B Purchase

LEWIS EARL R

Non-Executive Director
11,711 +11.7%
0.82
9,603 USD 		11,711 +11.7% 0.82 9,603 USD
April 24, 2020 April 23, 2020 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
5,000 +0.2%
1.02
5,090 USD 		5,000 +0.2% 1.02 5,090 USD
April 24, 2020 April 23, 2020 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
5,000 +0.2%
1.01
5,056 USD 		5,000 +0.2% 1.01 5,056 USD
April 24, 2020 April 23, 2020 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
5,000 +0.2%
0.99
4,974 USD 		5,000 +0.2% 0.99 4,974 USD
April 24, 2020 April 23, 2020 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
5,000 +0.2%
0.99
4,975 USD 		5,000 +0.2% 0.99 4,975 USD
April 24, 2020 April 23, 2020 B Purchase

HATSOPOULOS JOHN

Non-Executive Director
5,000 +0.2%
1.00
4,999 USD 		5,000 +0.2% 1.00 4,999 USD
April 21, 2020 April 21, 2020 B Purchase

Benjamin Locke M.

CEO

Officer
2,000 +58.5%
1.02
2,040 USD 		2,000 +58.5% 1.02 2,040 USD
Nov. 14, 2017 Nov. 14, 2017 B Purchase

Benjamin Locke M.

Co-CEO
2,000 +141.0%
2.64
5,280 USD 		2,000 +141.0% 2.64 5,280 USD
Jan. 11, 2017 Jan. 6, 2017 B Purchase

MAXWELL CHARLEST

Non-Executive Director
25,000 +23.9%
4.00
100,000 USD 		25,000 +23.9% 4.00 100,000 USD
Jan. 4, 2017 Jan. 4, 2017 B Purchase

MAXWELL CHARLEST

Non-Executive Director
1,000 +1.0%
3.84
3,840 USD 		1,000 +1.0% 3.84 3,840 USD
Jan. 4, 2017 Jan. 4, 2017 B Purchase

MAXWELL CHARLEST

Non-Executive Director
11,000 +11.9%
3.85
42,350 USD 		11,000 +11.9% 3.85 42,350 USD
Jan. 4, 2017 Dec. 30, 2016 B Purchase

MAXWELL CHARLEST

Non-Executive Director
700 +0.8%
4.00
2,800 USD 		700 +0.8% 4.00 2,800 USD
Jan. 4, 2017 Dec. 30, 2016 B Purchase

MAXWELL CHARLEST

Non-Executive Director
200 +0.2%
3.95
790 USD 		200 +0.2% 3.95 790 USD
Jan. 4, 2017 Dec. 29, 2016 B Purchase

MAXWELL CHARLEST

Non-Executive Director
1,200 +1.3%
3.84
4,608 USD 		1,200 +1.3% 3.84 4,608 USD
Jan. 4, 2017 Dec. 29, 2016 B Purchase

MAXWELL CHARLEST

Non-Executive Director
9,800 +12.1%
3.85
37,730 USD 		9,800 +12.1% 3.85 37,730 USD
Jan. 4, 2017 Dec. 29, 2016 B Purchase

MAXWELL CHARLEST

Non-Executive Director
4,200 +5.5%
3.95
16,590 USD 		4,200 +5.5% 3.95 16,590 USD
Jan. 4, 2017 Dec. 28, 2016 B Purchase

MAXWELL CHARLEST

Non-Executive Director
69 +0.1%
3.92
270 USD 		69 +0.1% 3.92 270 USD
Jan. 4, 2017 Dec. 23, 2016 B Purchase

MAXWELL CHARLEST

Non-Executive Director
1,600 +2.1%
3.86
6,176 USD 		1,600 +2.1% 3.86 6,176 USD
June 1, 2015 June 1, 2015 B Purchase

GARRISON DAVID A

CFO, Treasurer and Secretary

Officer
1,000 +11.1%
4.32
4,319 USD 		1,000 +11.1% 4.32 4,319 USD
June 1, 2015 May 29, 2015 B Purchase

GARRISON DAVID A

CFO, Treasurer and Secretary

Officer
100 +1.1%
4.30
430 USD 		100 +1.1% 4.30 430 USD
June 1, 2015 May 28, 2015 B Purchase

GARRISON DAVID A

CFO, Treasurer and Secretary

Officer
400 +4.7%
4.30
1,720 USD 		400 +4.7% 4.30 1,720 USD
Dec. 4, 2014 Dec. 2, 2014 B Purchase

GARRISON DAVID A

CFO, Treasurer and Secretary

Officer
4,050 +91.0%
5.54
22,453 USD 		4,050 +91.0% 5.54 22,453 USD
Dec. 1, 2014 Nov. 26, 2014 B Purchase

GARRISON DAVID A

CFO, Treasurer and Secretary

Officer
4,450 +inf%
5.74
25,543 USD 		4,450 +inf% 5.74 25,543 USD

Modal body text goes here.