Legal Insider Trading Data | Free and Professional Subscription Services | Insider Insights urn:uuid:ef158361-0a66-c32a-74f2-527d9c2756d1 2026-04-29T03:47:07-04:00 Jonathan Moreland Profit from legal insider trading. InsiderInsights.com provides free insider trading data tools and resources, and professional grade subscription based real time Form 4 data, analysis and services TGEN: GHONIEM AHMED (DIR) Bought (JB*) 12,723 Shares of TECOGEN INC for $0.79 on 4/24 urn:uuid:d0b3991d-f3a3-5364-db62-7022906a199b 2026-04-27T09:30:46-04:00 TGEN: HIRSCH SUSAN B (DIR) Bought (JB*) 5k Shares of TECOGEN INC for $3.73 on 4/13 urn:uuid:d0eacb60-a970-64d1-01b6-0c4495380e1f 2026-04-14T16:03:22-04:00 TGEN: HIRSCH SUSAN B (DIR) Bought (B) 10k Shares of TECOGEN INC for $2.54 on 3/27 urn:uuid:1f132afc-4845-20ff-f804-5e1feedf0c26 2026-03-27T16:24:32-04:00 TGEN: LEWIS EARL (DIR) Bought (B) 5k Shares of TECOGEN INC for $2.52 on 3/27 urn:uuid:da9251f4-baf0-49f7-cc46-ed7b44d2f738 2026-03-27T14:44:15-04:00 TGEN: LEWIS EARL (DIR) Bought (B) 5k Shares of TECOGEN INC for $2.88 on 3/26 urn:uuid:dbd1d778-f6cd-ba84-58df-71ed9b8e7859 2026-03-27T12:10:33-04:00 TGEN: WHITING JOHN KIMBALL IV (GC,SEC) Bought (B) 10k Shares of TECOGEN INC for $2.38 on 3/23 urn:uuid:497ac437-c113-dbf0-e4e5-dccdb266c52d 2026-03-23T14:35:20-04:00 TGEN: DESCHENES ROGER P (CAO) Bought (B) 10k Shares of TECOGEN INC for $2.23 on 3/20 urn:uuid:4ccb32ad-3f2e-a528-98fa-210496f48e88 2026-03-23T14:34:33-04:00 TGEN: RANGESH ABINAND (CEO,CFO,DIR) Bought (B) 3k Shares of TECOGEN INC for $2.30 on 3/20 urn:uuid:42874df2-107a-4340-ed97-5de6ad591cb3 2026-03-23T14:33:46-04:00 TGEN: HATSOPOULOS JOHN (DIR) Exercised 50k Options (OB) of TECOGEN INC for $0.88 on 3/20, and Kept Them All urn:uuid:272c7ced-6dc3-376d-059b-695c4f9f1584 2026-03-23T14:32:27-04:00 TGEN: LAFAILLE STEPHEN (VP,BD) Acquired (JB) 11,976 Shares of TECOGEN INC for $0.00 on 7/24 urn:uuid:ec67f1d9-ea8e-5467-7590-e41a153707c7 2025-07-28T11:12:02-04:00