As Of	Filer	Filing¹	For·On·As	Docs:Size	Issuer		Filing Agent

 3/25/24  Tecogen Inc.                      10-K       12/31/23   93:8.8M                                                            
 7/24/23  Tecogen Inc.                      8-K:8,9     7/19/23   11:310K                                                            
 3/23/23  Tecogen Inc.                      10-K       12/31/22   89:7.8M                                                            
 6/23/22  Tecogen Inc.                      S-8         6/23/22    4:517K                                                            
 3/10/22  Tecogen Inc.                      10-K       12/31/21   91:8.2M                                                            
 3/19/21  Tecogen Inc.                      POS AM                 2:567K                                                            
 3/18/21  Tecogen Inc.                      10-K       12/31/20   88:8.8M                                                            
 3/12/21  Tecogen Inc.                      POS AM                 4:2.6M                                                            

____________
¹	Filing/Form Types:
	8-K	Current Report — Form 8-K { Item 1: Business & Operations;  2: Financial Info;  3: Securities & Trading;  4: Accountants & Accounting;  5: Governance & Management;  6: Asset-Backed Securities;  7: Disclosures;  8: Events;  9: Financials }.
	10-K	Annual Report — Form 10-K.
	POS AM	Post-Effective Amendment of a Registration Statement.
	S-8	Registration Statement – Securities for an Employee Benefit Plan — Form S-8.