0001628280-25-014778.txt : 20250325 0001628280-25-014778.hdr.sgml : 20250325 20250325171110 ACCESSION NUMBER: 0001628280-25-014778 CONFORMED SUBMISSION TYPE: 4/A PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20231009 FILED AS OF DATE: 20250325 DATE AS OF CHANGE: 20250325 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: LEWIS EARL R CENTRAL INDEX KEY: 0001230427 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4/A SEC ACT: 1934 Act SEC FILE NUMBER: 001-36103 FILM NUMBER: 25769262 MAIL ADDRESS: STREET 1: C/O NXSTAGE MEDICAL INC. (NXTM) STREET 2: 439 SOUTH UNION STREET, 5TH FLOOR CITY: LAWRENCE STATE: MA ZIP: 01843 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: TECOGEN INC. CENTRAL INDEX KEY: 0001537435 STANDARD INDUSTRIAL CLASSIFICATION: AIR COND & WARM AIR HEATING EQUIP & COMM & INDL REFRIG EQUIP [3585] ORGANIZATION NAME: 06 Technology EIN: 043536131 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 45 FIRST AVENUE CITY: WALTHAM STATE: MA ZIP: 02451 BUSINESS PHONE: 781-466-6400 MAIL ADDRESS: STREET 1: 45 FIRST AVENUE CITY: WALTHAM STATE: MA ZIP: 02451 FORMER COMPANY: FORMER CONFORMED NAME: TECOGEN INC DATE OF NAME CHANGE: 20111215 4/A 1 wk-form4a_1742937063.xml FORM 4/A X0508 4/A 2023-10-09 2024-12-06 0 0001537435 TECOGEN INC. TGEN 0001230427 LEWIS EARL R C/O TECOGEN INC. 76 TREBLE COVE ROAD NORTH BILLERICA MA 01862 1 0 0 0 0 Common Stock 2023-10-09 4 P 0 2000 0.80 A 627000 D The share balance on the Form 4 filed 12/6/2024 following the reported purchase of 2,000 shares should have been 627,000 shares rather than 637,000 shares because the Form 4 filed 7/17/2024 was duplicative, resulting in a 10,000 share overstatement of the share balance. /s/ Earl R. Lewis 2025-03-25