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Who

Abinand Rangesh

Chief Executive Officer

Company insider

Files Form 4 as: Chief Executive Officer, Tecogen.

In numbers

Trades disclosed
18
Buys
6
Sells
0
Bought
$18K
Sold
$0
Companies
1
Companies where not an officer
0
First trade
20 Mar 2023
Last trade
26 Jun 2026
Last filed
8 Sep 2026

Companies traded

Where they are an officer
TGEN TecogenDirector, Officer, Other · Machinery · last 26 Jun 20266 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
01Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
26 Jun 2026filed 8 Sep 2026TGEN TecogenMachinerySEC FORM 4 Code A—174,081 at $0.00filing
26 Jun 2026filed 8 Sep 2026TGEN TecogenMachinerySEC FORM 4 Code A—174,081 at $0.00filing
26 Jun 2026filed 30 Jun 2026TGEN TecogenMachinerySEC FORM 4 Code A—174,081filing
26 Jun 2026filed 30 Jun 2026TGEN Tecogenoption or derivative · MachinerySEC FORM 4 Code A$135K26,041 at $5.17filing
26 Jun 2026filed 30 Jun 2026TGEN Tecogenoption or derivative · MachinerySEC FORM 4 Code A$135K26,041 at $5.17filing
26 Jun 2026filed 30 Jun 2026TGEN TecogenMachinerySEC FORM 4 Code A—174,081filing
20 Mar 2026filed 23 Mar 2026TGEN TecogenMachinerySEC FORM 4 Bought$6,8943,000 at $2.30filing
20 Mar 2026filed 23 Mar 2026TGEN TecogenMachinerySEC FORM 4 Bought$6,9003,000 at $2.30filing
24 Jul 2025filed 28 Jul 2025TGEN Tecogenoption or derivative · MachinerySEC FORM 4 Code A$201K24,075 at $8.35filing
24 Jul 2025filed 28 Jul 2025TGEN Tecogenoption or derivative · MachinerySEC FORM 4 Code A$101K12,048 at $8.35filing
24 Jul 2025filed 28 Jul 2025TGEN TecogenMachinerySEC FORM 4 Code A—53,892 at $0.00filing
20 Sep 2023filed 27 Sep 2023TGEN Tecogenoption or derivative · MachinerySEC FORM 4 Code A$123K140,000 at $0.88filing
30 Aug 2023filed 1 Sep 2023TGEN TecogenMachinerySEC FORM 4 Bought$816800 at $1.02filing
23 Aug 2023filed 1 Sep 2023TGEN TecogenMachinerySEC FORM 4 Bought$204200 at $1.02filing
15 Aug 2023filed 1 Sep 2023TGEN TecogenMachinerySEC FORM 4 Bought$11 at $0.95filing
20 Jun 2023filed 20 Jun 2023TGEN TecogenMachinerySEC FORM 4 Bought$1,5601,500 at $1.04filing
20 Mar 2023filed 27 Mar 2023TGEN TecogenMachinerySEC FORM 4 Bought$680800 at $0.85filing
20 Mar 2023filed 27 Mar 2023TGEN TecogenMachinerySEC FORM 4 Bought$9001,000 at $0.90filing

News

Tecogen, Inc.: Data Center Cuts Electric Bills Substantially with Tecogen's InVerdeTGEN · finanznachrichten.de · 14 Oct 2026

0 headlines in the last 90 days name Abinand Rangesh; 1 article from the last 14 days about the 1 company they traded most, at most three about any one of them.

Sectors

Industrials6

Buys in green, sells in red, by the company’s sector.

Related people

Stephen LafailleVP of Business Development · VP of Business Development at Tecogen, filing Form 4 there in the last year
Roger P. DeschenesChief Financial Officer · Chief Financial Officer at Tecogen, filing Form 4 there in the last year
Robert PanoraCOO and President · COO and President at Tecogen, filing Form 4 there in the last year
John Kimball Whiting IVGeneral Counsel & Secretary · General Counsel & Secretary at Tecogen, filing Form 4 there in the last year
Ahmed GhoniemDirector · Director at Tecogen, filing Form 4 there in the last year