Browse the latest SEC filings and forms submitted by TECOGEN INC. (TGEN). Access annual reports, quarterly statements, and other official disclosures.
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Search Company Filings →| Form | Filing Date | Description | Link |
|---|---|---|---|
| 4 | March 27, 2026 | FORM 4 | View Document |
| 4 | March 27, 2026 | FORM 4 | View Document |
| 4 | March 27, 2026 | FORM 4 | View Document |
| 4 | March 23, 2026 | FORM 4 | View Document |
| 4 | March 23, 2026 | FORM 4 | View Document |
| 4 | March 23, 2026 | FORM 4 | View Document |
| 4 | March 23, 2026 | FORM 4 | View Document |
| 10-K | March 19, 2026 | 10-K | View Document |
| 8-K | March 18, 2026 | 8-K | View Document |
| 8-K | Jan. 7, 2026 | 8-K | View Document |
| 10-Q | Nov. 13, 2025 | 10-Q | View Document |
| 8-K | Nov. 12, 2025 | 8-K | View Document |
| 8-K | Sept. 17, 2025 | 8-K | View Document |
| 8-K | Sept. 4, 2025 | 8-K | View Document |
| SCHEDULE 13G/A | Aug. 14, 2025 | - | View Document |
| 10-Q | Aug. 13, 2025 | 10-Q | View Document |
| 8-K | Aug. 12, 2025 | 8-K | View Document |
| 4 | July 28, 2025 | FORM 4 | View Document |
| 4 | July 28, 2025 | FORM 4 | View Document |
| 4 | July 28, 2025 | FORM 4 | View Document |
| 4 | July 28, 2025 | FORM 4 | View Document |
| 4 | July 28, 2025 | FORM 4 | View Document |
| 4 | July 28, 2025 | FORM 4 | View Document |
| 4 | July 28, 2025 | FORM 4 | View Document |
| 4 | July 28, 2025 | FORM 4 | View Document |
| 4 | July 28, 2025 | FORM 4 | View Document |
| 8-K | July 28, 2025 | 8-K | View Document |
| 424B4 | July 21, 2025 | 424B4 | View Document |
| 8-K | July 21, 2025 | 8-K | View Document |
| 8-K | July 18, 2025 | 8-K | View Document |
| EFFECT | July 17, 2025 | - | View Document |
| S-1MEF | July 17, 2025 | S-1MEF | View Document |
| S-1/A | July 16, 2025 | S-1/A | View Document |
| S-1/A | July 16, 2025 | S-1/A | View Document |
| S-1/A | July 16, 2025 | S-1/A | View Document |
| CORRESP | July 15, 2025 | - | View Document |
| CORRESP | July 15, 2025 | - | View Document |
| S-1 | July 15, 2025 | S-1 | View Document |
| 4/A | July 14, 2025 | FORM 4/A | View Document |
| 4/A | July 14, 2025 | FORM 4/A | View Document |
| UPLOAD | July 1, 2025 | - | View Document |
| DRS | June 26, 2025 | - | View Document |
| 3 | June 24, 2025 | FORM 3 | View Document |
| 4 | June 24, 2025 | FORM 4 | View Document |
| 3 | June 24, 2025 | FORM 3 | View Document |
| 4 | June 20, 2025 | FORM 4 | View Document |
| 8-K | June 10, 2025 | 8-K | View Document |
| 4 | June 2, 2025 | FORM 4 | View Document |
| 424B3 | May 22, 2025 | 424B3 | View Document |
| 424B3 | May 22, 2025 | 424B3 | View Document |
| 10-Q | May 13, 2025 | 10-Q | View Document |
| 8-K | May 12, 2025 | 8-K | View Document |
| 4 | May 7, 2025 | FORM 4 | View Document |
| CERT | May 5, 2025 | NYSE AMERICAN CERTIFICATION | View Document |
| 8-A12B | May 5, 2025 | 8-A12B | View Document |
| 4 | May 5, 2025 | FORM 4 | View Document |
| 8-K | May 2, 2025 | 8-K | View Document |
| 8-K | May 1, 2025 | 8-K | View Document |
| DEF 14A | April 29, 2025 | DEF 14A | View Document |
| S-8 | March 28, 2025 | S-8 | View Document |
| 4/A | March 25, 2025 | FORM 4/A | View Document |
| 4/A | March 25, 2025 | FORM 4/A | View Document |
| 4/A | March 25, 2025 | FORM 4/A | View Document |
| 10-K | March 18, 2025 | 10-K | View Document |
| 8-K | March 17, 2025 | 8-K | View Document |
| 8-K | March 11, 2025 | 8-K | View Document |
| 8-K | March 3, 2025 | 8-K | View Document |
| 8-K | Feb. 19, 2025 | 8-K | View Document |
| 8-K | Jan. 17, 2025 | 8-K | View Document |
| 4 | Dec. 6, 2024 | FORM 4 | View Document |
| 4 | Dec. 6, 2024 | FORM 4 | View Document |
| 10-Q | Nov. 14, 2024 | 10-Q | View Document |
| 8-K | Nov. 14, 2024 | 8-K | View Document |
| 4 | Sept. 27, 2024 | FORM 4 | View Document |
| 4 | Sept. 25, 2024 | FORM 4 | View Document |
| 8-K | Sept. 23, 2024 | 8-K | View Document |
| 4 | Aug. 20, 2024 | FORM 4 | View Document |
| 8-K | Aug. 8, 2024 | 8-K | View Document |
| 10-Q | Aug. 8, 2024 | 10-Q | View Document |
| 8-K | July 25, 2024 | 8-K | View Document |
| 4 | July 17, 2024 | FORM 4 | View Document |
| 4 | July 15, 2024 | FORM 4 | View Document |
| 4 | July 12, 2024 | FORM 4 | View Document |
| 4 | June 18, 2024 | FORM 4 | View Document |
| 4 | June 18, 2024 | FORM 4 | View Document |
| 4 | June 18, 2024 | FORM 4 | View Document |
| 4 | June 18, 2024 | FORM 4 | View Document |
| 4 | June 18, 2024 | FORM 4 | View Document |
| 8-K | June 6, 2024 | 8-K | View Document |
| 4 | May 29, 2024 | FORM 4 | View Document |
| 4 | May 29, 2024 | FORM 4 | View Document |
| 4 | May 28, 2024 | FORM 4 | View Document |
| 4 | May 22, 2024 | FORM 4 | View Document |
| 4 | May 17, 2024 | FORM 4 | View Document |
| 4 | May 16, 2024 | FORM 4 | View Document |
| 10-Q | May 9, 2024 | 10-Q | View Document |
| 8-K | May 9, 2024 | 8-K | View Document |
| 8-K | May 3, 2024 | 8-K | View Document |
| 4 | May 3, 2024 | FORM 4 | View Document |
| 4 | April 24, 2024 | FORM 4 | View Document |
| 4 | April 24, 2024 | FORM 4 | View Document |
| DEF 14A | April 23, 2024 | DEF 14A | View Document |
| 4 | April 23, 2024 | FORM 4 | View Document |
| 5 | April 16, 2024 | FORM 5 | View Document |
| 4 | April 16, 2024 | FORM 4 | View Document |
| 4 | April 16, 2024 | FORM 4 | View Document |
| PRE 14A | April 12, 2024 | PRE 14A | View Document |
| 4 | April 12, 2024 | FORM 4 | View Document |
| 4 | April 11, 2024 | FORM 4 | View Document |
| 4 | April 9, 2024 | FORM 4 | View Document |
| 4 | April 8, 2024 | FORM 4 | View Document |
| 4 | April 2, 2024 | FORM 4 | View Document |
| 10-K | March 25, 2024 | 10-K | View Document |
| 8-K | March 14, 2024 | 8-K | View Document |
| 8-K | March 7, 2024 | 8-K | View Document |
| 8-K | Feb. 5, 2024 | 8-K | View Document |
| 4 | Jan. 25, 2024 | FORM 4 | View Document |
| 4 | Jan. 23, 2024 | FORM 4 | View Document |
| 4 | Jan. 23, 2024 | FORM 4 | View Document |
| 4 | Jan. 19, 2024 | FORM 4 | View Document |
| 4 | Jan. 16, 2024 | FORM 4 | View Document |
| 8-K | Jan. 16, 2024 | 8-K | View Document |
| 4 | Dec. 28, 2023 | FORM 4 | View Document |
| 4 | Dec. 26, 2023 | FORM 4 | View Document |
| 4 | Dec. 15, 2023 | FORM 4 | View Document |
| 8-K | Dec. 14, 2023 | 8-K | View Document |
| 4 | Nov. 21, 2023 | FORM 4 | View Document |
| 4 | Nov. 17, 2023 | FORM 4 | View Document |
| 4 | Nov. 17, 2023 | FORM 4 | View Document |
| 10-Q | Nov. 9, 2023 | 10-Q | View Document |
| 8-K | Nov. 8, 2023 | 8-K | View Document |
| 4 | Oct. 20, 2023 | FORM 4 | View Document |
| 4 | Oct. 18, 2023 | FORM 4 | View Document |
| 4 | Oct. 17, 2023 | FORM 4 | View Document |
| 4 | Oct. 13, 2023 | FORM 4 | View Document |
| 4 | Oct. 11, 2023 | FORM 4 | View Document |
| 8-K | Oct. 10, 2023 | 8-K | View Document |
| 4 | Oct. 2, 2023 | FORM 4 | View Document |
| 3 | Oct. 2, 2023 | FORM 3 | View Document |
| 4 | Sept. 28, 2023 | FORM 4 | View Document |
| 4 | Sept. 27, 2023 | FORM 4 | View Document |
| 4 | Sept. 27, 2023 | FORM 4 | View Document |
| 4 | Sept. 27, 2023 | FORM 4 | View Document |
| 8-K | Sept. 26, 2023 | 8-K | View Document |
| 4 | Sept. 19, 2023 | FORM 4 | View Document |
| 4 | Sept. 11, 2023 | FORM 4 | View Document |
| 4 | Sept. 8, 2023 | FORM 4 | View Document |
| 4 | Sept. 6, 2023 | FORM 4 | View Document |
| 4 | Sept. 6, 2023 | FORM 4 | View Document |
| 4 | Sept. 1, 2023 | FORM 4 | View Document |
| 4 | Aug. 23, 2023 | FORM 4 | View Document |
| 4 | Aug. 17, 2023 | FORM 4 | View Document |
| 4 | Aug. 17, 2023 | FORM 4 | View Document |
| 10-Q | Aug. 10, 2023 | 10-Q | View Document |
| 8-K | Aug. 9, 2023 | 8-K | View Document |
| 8-K | July 24, 2023 | 8-K | View Document |
| 4 | June 27, 2023 | FORM 4 | View Document |
| 4 | June 21, 2023 | FORM 4 | View Document |
| 4 | June 20, 2023 | FORM 4 | View Document |
| 4 | June 15, 2023 | FORM 4 | View Document |
| 4 | June 15, 2023 | FORM 4 | View Document |
| 4 | June 15, 2023 | FORM 4 | View Document |
| 4 | June 15, 2023 | FORM 4 | View Document |
| 4 | June 15, 2023 | FORM 4 | View Document |
| 4 | June 15, 2023 | FORM 4 | View Document |
| 4 | June 12, 2023 | FORM 4 | View Document |
| 4 | June 9, 2023 | FORM 4 | View Document |
| 4 | June 8, 2023 | FORM 4 | View Document |
| 8-K | June 8, 2023 | 8-K | View Document |
| 4 | June 7, 2023 | FORM 4 | View Document |
| 4 | June 6, 2023 | FORM 4 | View Document |
| 4 | June 5, 2023 | FORM 4 | View Document |
| 4 | May 26, 2023 | FORM 4 | View Document |
| 4 | May 26, 2023 | FORM 4 | View Document |
| 4 | May 16, 2023 | FORM 4 | View Document |
| 4 | May 16, 2023 | FORM 4 | View Document |
| 8-K | May 11, 2023 | 8-K | View Document |
| 10-Q | May 11, 2023 | 10-Q | View Document |
| 8-K | May 3, 2023 | 8-K | View Document |
| DEF 14A | April 25, 2023 | DEF 14A | View Document |
| 4 | March 30, 2023 | FORM 4 | View Document |
| 4 | March 29, 2023 | FORM 4 | View Document |
| 4 | March 27, 2023 | FORM 4 | View Document |
| 4 | March 27, 2023 | FORM 4 | View Document |
| 4 | March 24, 2023 | FORM 4 | View Document |
| 4 | March 23, 2023 | FORM 4 | View Document |
| 10-K | March 23, 2023 | 10-K | View Document |
| 4 | March 21, 2023 | FORM 4 | View Document |
| 4 | March 21, 2023 | FORM 4 | View Document |
| 4 | March 21, 2023 | FORM 4 | View Document |
| 8-K | March 16, 2023 | 8-K | View Document |
| 8-K | Jan. 30, 2023 | 8-K | View Document |
| 3 | Dec. 19, 2022 | FORM 3 | View Document |
| 8-K | Dec. 8, 2022 | 8-K | View Document |
| 8-K | Nov. 10, 2022 | 8-K | View Document |
| 10-Q | Nov. 10, 2022 | 10-Q | View Document |
| 4 | Oct. 19, 2022 | FORM 4 | View Document |
| 4 | Oct. 18, 2022 | FORM 4 | View Document |
| 4 | Oct. 12, 2022 | FORM 4 | View Document |
| 4 | Sept. 29, 2022 | FORM 4 | View Document |
| 8-K | Sept. 21, 2022 | 8-K | View Document |
| 4 | Sept. 12, 2022 | FORM 4 | View Document |
| 4 | Sept. 2, 2022 | FORM 4 | View Document |
| 4 | Aug. 30, 2022 | FORM 4 | View Document |
| 4 | Aug. 25, 2022 | FORM 4 | View Document |
| 4 | Aug. 23, 2022 | FORM 4 | View Document |
| 8-K | Aug. 11, 2022 | 8-K | View Document |
| 10-Q | Aug. 11, 2022 | 10-Q | View Document |
| 8-K | July 20, 2022 | 8-K | View Document |
| 424B3 | July 1, 2022 | 424B3 | View Document |
| 4 | June 28, 2022 | FORM 4 | View Document |
| 4 | June 28, 2022 | FORM 4 | View Document |
| 4 | June 28, 2022 | FORM 4 | View Document |
| 4 | June 28, 2022 | FORM 4 | View Document |
| 4 | June 28, 2022 | FORM 4 | View Document |
| S-8 | June 23, 2022 | S-8 | View Document |
| 8-K | June 15, 2022 | 8-K | View Document |
| 8-K | June 10, 2022 | 8-K | View Document |
| 10-Q | May 12, 2022 | 10-Q | View Document |
| 8-K | May 12, 2022 | 8-K | View Document |
| SC 13G | May 10, 2022 | SC 13G | View Document |
| 3/A | May 6, 2022 | FORM 3/A | View Document |
| 3/A | May 6, 2022 | FORM 3/A | View Document |
| 3 | May 6, 2022 | FORM 3 | View Document |
| 3/A | May 6, 2022 | FORM 3/A | View Document |
| 3/A | May 6, 2022 | FORM 3/A | View Document |
| 3/A | May 6, 2022 | FORM 3/A | View Document |
| DEF 14A | April 25, 2022 | DEF 14A | View Document |
| 8-K | March 22, 2022 | 8-K | View Document |
| 3 | March 16, 2022 | FORM 3 | View Document |
| 3 | March 16, 2022 | FORM 3 | View Document |
| 3/A | March 16, 2022 | FORM 3/A | View Document |
| 3 | March 11, 2022 | FORM 3 | View Document |
| 3 | March 11, 2022 | FORM 3 | View Document |
| 3 | March 11, 2022 | FORM 3 | View Document |
| 3 | March 11, 2022 | FORM 3 | View Document |
| 3 | March 11, 2022 | FORM 3 | View Document |
| 3 | March 11, 2022 | FORM 3 | View Document |
| 3 | March 11, 2022 | FORM 3 | View Document |
| 3 | March 11, 2022 | FORM 3 | View Document |
| 10-K | March 10, 2022 | 10-K | View Document |
| 8-K | March 10, 2022 | 8-K | View Document |
| 8-A12G | March 9, 2022 | 8-A12G | View Document |
| 8-K | March 9, 2022 | 8-K | View Document |
| 8-K | Jan. 20, 2022 | 8-K | View Document |
| 8-K | Nov. 10, 2021 | 8-K | View Document |
| 10-Q | Nov. 10, 2021 | 10-Q | View Document |
| 8-K | Nov. 10, 2021 | 8-K | View Document |
| 8-K | Oct. 12, 2021 | 8-K | View Document |
| 8-K | Sept. 21, 2021 | 8-K | View Document |
| 8-K | Sept. 13, 2021 | 8-K | View Document |
| 4 | Aug. 19, 2021 | FORM 4 | View Document |
| 8-K | Aug. 12, 2021 | 8-K | View Document |
| 10-Q | Aug. 12, 2021 | 10-Q | View Document |
| 8-K | June 16, 2021 | 8-K | View Document |
| 10-Q | May 13, 2021 | 10-Q | View Document |
| 8-K | May 13, 2021 | 8-K | View Document |
| 8-K | March 30, 2021 | 8-K | View Document |
| 424B3 | March 23, 2021 | 424B3 | View Document |
| EFFECT | March 22, 2021 | - | View Document |
| POS AM | March 19, 2021 | POS AM | View Document |
| 10-K | March 18, 2021 | 10-K | View Document |
| POS AM | March 12, 2021 | POS AM | View Document |
| 8-K | March 11, 2021 | 8-K | View Document |
| 8-K | Feb. 25, 2021 | 8-K | View Document |
| 8-K | Feb. 9, 2021 | 8-K | View Document |
| 8-K | Jan. 20, 2021 | 8-K | View Document |
| 10-Q | Nov. 12, 2020 | 10-Q | View Document |
| 8-K | Nov. 12, 2020 | 8-K | View Document |
| 4 | Aug. 20, 2020 | FORM 4 | View Document |
| 4 | Aug. 20, 2020 | FORM 4 | View Document |
| 8-K | Aug. 13, 2020 | 8-K | View Document |
| 10-Q | Aug. 13, 2020 | 10-Q | View Document |
| 4 | Aug. 6, 2020 | FORM 4 | View Document |
| S-8 POS | July 28, 2020 | S-8 POS | View Document |
| AW | July 27, 2020 | AW | View Document |
| POS AM | July 24, 2020 | POS AM | View Document |
| 4 | July 21, 2020 | FORM 4 | View Document |
| 4 | July 21, 2020 | FORM 4 | View Document |
| 4 | July 21, 2020 | FORM 4 | View Document |
| 4 | July 21, 2020 | FORM 4 | View Document |
| 4 | July 21, 2020 | FORM 4 | View Document |
| 4 | July 21, 2020 | FORM 4 | View Document |
| 4 | July 21, 2020 | FORM 4 | View Document |
| 8-K | July 21, 2020 | 8-K | View Document |
| POS AM | July 10, 2020 | POS AM | View Document |
| EFFECT | July 10, 2020 | - | View Document |
| EFFECT | July 10, 2020 | - | View Document |
| POS AM | July 10, 2020 | POS AM | View Document |
| 8-K | July 8, 2020 | 8-K | View Document |
| 3 | July 8, 2020 | FORM 3 | View Document |
| 25 | June 9, 2020 | 25 | View Document |
| 4 | June 9, 2020 | FORM 4 | View Document |
| 8-K | June 9, 2020 | 8-K | View Document |
| 8-K | June 5, 2020 | 8-K | View Document |
| 4/A | June 4, 2020 | FORM 4/A | View Document |
| 8-K | June 4, 2020 | 8-K | View Document |
| 4 | June 3, 2020 | FORM 4 | View Document |
| 3 | June 3, 2020 | FORM 3 | View Document |
| 8-K | May 29, 2020 | 8-K | View Document |
| 8-K | May 26, 2020 | 8-K | View Document |
| 8-K | May 15, 2020 | 8-K | View Document |
| 10-Q | May 14, 2020 | 10-Q | View Document |
| 8-K | May 14, 2020 | 8-K | View Document |
| 8-K | May 12, 2020 | 8-K | View Document |
| 4 | April 24, 2020 | FORM 4 | View Document |
| EFFECT | April 23, 2020 | - | View Document |
| DEFA14A | April 22, 2020 | DEFA14A | View Document |
| DEF 14A | April 21, 2020 | DEF 14A | View Document |
| 4 | April 21, 2020 | FORM 4 | View Document |
| CORRESP | April 21, 2020 | - | View Document |
| 8-K | April 17, 2020 | 8-K | View Document |
| 8-K | April 14, 2020 | 8-K | View Document |
| UPLOAD | April 13, 2020 | - | View Document |
| 8-K | April 7, 2020 | 8-K | View Document |
| S-3 | April 6, 2020 | S-3 | View Document |
| POS AM | April 6, 2020 | POS AM | View Document |
| EFFECT | April 6, 2020 | - | View Document |
| RW | April 3, 2020 | RW | View Document |
| 3 | April 2, 2020 | FORM 3 | View Document |
| S-3/A | April 2, 2020 | S-3/A | View Document |
| 8-K | April 1, 2020 | 8-K | View Document |
| 8-K | March 18, 2020 | 8-K | View Document |
| 8-K | March 17, 2020 | 8-K | View Document |
| 8-K | March 12, 2020 | 8-K | View Document |
| 10-K | March 12, 2020 | 10-K | View Document |
| 10-Q | Nov. 12, 2019 | 10-Q | View Document |
| 8-K | Nov. 12, 2019 | 8-K | View Document |
| 8-K | Oct. 15, 2019 | 8-K | View Document |
| 8-K | Aug. 13, 2019 | 8-K | View Document |
| 10-Q | Aug. 13, 2019 | 10-Q | View Document |
| 8-K | July 25, 2019 | 8-K | View Document |
| 8-K/A | July 25, 2019 | 8-K | View Document |
| 8-K | June 10, 2019 | 8-K | View Document |
| 8-K | June 10, 2019 | 8-K | View Document |
| 10-Q | May 15, 2019 | 10-Q | View Document |
| 8-K | May 14, 2019 | 8-K | View Document |
| DEFA14A | April 24, 2019 | DEFA14A | View Document |
| DEF 14A | April 23, 2019 | DEF 14A | View Document |
| 10-K | March 29, 2019 | 10-K | View Document |
| 8-K | March 28, 2019 | 8-K | View Document |
| SC 13G/A | March 26, 2019 | SC 13G/A | View Document |
| 8-K | March 18, 2019 | 8-K | View Document |
| 8-K | March 8, 2019 | 8-K | View Document |
| 8-K | Feb. 1, 2019 | 8-K - DIRECTOR APPOINTMENT | View Document |
| 8-K | Jan. 8, 2019 | 8-K | View Document |
| 8-K | Dec. 28, 2018 | 8-K | View Document |
| 8-K | Dec. 17, 2018 | 8-K | View Document |
| 8-K | Nov. 19, 2018 | 8-K | View Document |
| 10-Q | Nov. 13, 2018 | 10-Q | View Document |
| 8-K | Nov. 13, 2018 | 8-K | View Document |
| 8-K | Sept. 18, 2018 | 8-K | View Document |
| 8-K | Sept. 4, 2018 | 8-K | View Document |
| 10-Q | Aug. 14, 2018 | 10-Q | View Document |
| 8-K | Aug. 14, 2018 | - | View Document |
| SC 13G | Aug. 1, 2018 | SC 13G | View Document |
| 8-K | June 7, 2018 | 8-K | View Document |
| 4 | June 1, 2018 | FORM 4 | View Document |
| 4 | June 1, 2018 | FORM 4 | View Document |
| SC 13G | May 22, 2018 | SC 13G | View Document |
| SC 13G/A | May 16, 2018 | SC 13G/A | View Document |
| 10-Q | May 15, 2018 | 20180331 10-Q | View Document |
| 8-K | May 15, 2018 | 8-K | View Document |
| 8-K | May 8, 2018 | 8-K | View Document |
| DEFA14A | April 25, 2018 | DEFA14A | View Document |
| DEF 14A | April 20, 2018 | TGEN_DEF 14A | View Document |
| 8-K | April 12, 2018 | 8-K | View Document |
| 4/A | April 11, 2018 | FORM 4/A | View Document |
| 8-K | March 30, 2018 | 8-K | View Document |
| 8-K | March 21, 2018 | 8-K | View Document |
| 10-K | March 21, 2018 | 10-K | View Document |
| 8-K | March 5, 2018 | 8-K | View Document |
| 8-K | March 2, 2018 | 8-K | View Document |
| 8-K | Feb. 14, 2018 | 8-K | View Document |
| SC 13G/A | Feb. 12, 2018 | SC 13G/A #4 | View Document |
| 5 | Feb. 12, 2018 | FORM 5 | View Document |
| 5 | Feb. 8, 2018 | FORM 5 | View Document |
| SC 13G/A | Jan. 11, 2018 | SC 13G/A | View Document |
| 8-K | Jan. 9, 2018 | 8-K SOUTHWEST CONTRACT | View Document |
| 8-K | Jan. 8, 2018 | 8-K -JNH RETIREMENT | View Document |
| 8-K | Dec. 18, 2017 | 8-K | View Document |
| 4 | Nov. 14, 2017 | FORM 4 | View Document |
| 8-K | Nov. 14, 2017 | TGEN_ER 8-K | View Document |
| 10-Q | Nov. 9, 2017 | 10-Q | View Document |
| 8-K | Oct. 26, 2017 | 8-K | View Document |
| SC 13D/A | Oct. 3, 2017 | - | View Document |
| 8-K | Sept. 28, 2017 | 8-K | View Document |
| 8-K | Sept. 5, 2017 | 8-K | View Document |
| 10-Q | Aug. 14, 2017 | TGN-2017.06.30 10-Q | View Document |
| 8-K | Aug. 14, 2017 | EARNINGS RELEASE 8-K | View Document |
| 8-K | July 18, 2017 | MID-YEAR SHAREHOLDER LETTER 8-K | View Document |
| 8-K/A | July 11, 2017 | 8-K/A | View Document |
| 8-K | July 7, 2017 | 8-K | View Document |
| 8-K | July 5, 2017 | TGEN 2017 ANNUAL MEETING 8-K | View Document |
| SC 13G | June 23, 2017 | SC 13G MONOVOUKAS 05 23 17 | View Document |
| 3 | June 22, 2017 | FORM 3 | View Document |
| 3 | June 1, 2017 | FORM 3 | View Document |
| S-8 | May 25, 2017 | S-8 | View Document |
| 4 | May 25, 2017 | FORM 4 | View Document |
| 4 | May 25, 2017 | FORM 4 | View Document |
| 4 | May 25, 2017 | FORM 4 | View Document |
| 8-K | May 22, 2017 | MERGER COMPLETE 8-K | View Document |
| DEFA14A | May 12, 2017 | DEFINITIVE ADDITIONAL 2017 PROXY MATERIALS | View Document |
| 8-K | May 12, 2017 | 8-K | View Document |
| 10-Q | May 11, 2017 | 10-Q | View Document |
| 8-K/A | May 2, 2017 | 8-K/A | View Document |
| 425 | May 2, 2017 | 8-K/A | View Document |
| 425 | May 2, 2017 | 8-K | View Document |
| 8-K | May 2, 2017 | 8-K | View Document |
| 425 | May 2, 2017 | 8-K/A | View Document |
| 425 | May 2, 2017 | 8-K | View Document |
| DEF 14A | May 1, 2017 | TECOGEN PROXY STATEMENT FOR ANNUAL MEETING | View Document |
| DEFA14A | April 28, 2017 | TECOGEN MERGER PROXY CARD | View Document |
| 424B3 | April 27, 2017 | PROXY STATEMENT / PROSPECTUS | View Document |
| 425 | April 13, 2017 | 8-K | View Document |
| EFFECT | April 12, 2017 | - | View Document |
| 8-K | April 12, 2017 | 8-K | View Document |
| 425 | April 12, 2017 | 8-K | View Document |
| S-4/A | April 11, 2017 | S-4/A 3 | View Document |
| CORRESP | April 11, 2017 | - | View Document |
| S-4/A | March 27, 2017 | S-4/A 2 | View Document |
| 8-K | March 24, 2017 | 8-K | View Document |
| CORRESP | March 24, 2017 | - | View Document |
| 425 | March 24, 2017 | 8-K | View Document |
| 425 | March 24, 2017 | 8-K | View Document |
| 8-K | March 24, 2017 | 8-K | View Document |
| 10-K | March 23, 2017 | 10-K | View Document |
| 4 | March 23, 2017 | FORM 4 | View Document |
| SC 13G/A | Feb. 15, 2017 | SC 13G/A #3 | View Document |
| SC 13D | Feb. 14, 2017 | SCHEDULE 13D | View Document |
| SC 13D/A | Feb. 13, 2017 | - | View Document |
| UPLOAD | Feb. 13, 2017 | - | View Document |
| 8-K | Feb. 2, 2017 | 8-K | View Document |
| SC 13G | Feb. 1, 2017 | SC 13G | View Document |
| S-4/A | Jan. 30, 2017 | S-4/A | View Document |
| 4/A | Jan. 27, 2017 | FORM 4/A | View Document |
| CORRESP | Jan. 27, 2017 | - | View Document |
| UPLOAD | Jan. 17, 2017 | - | View Document |
| 4 | Jan. 11, 2017 | FORM 4 | View Document |
| 4 | Jan. 4, 2017 | FORM 4 | View Document |
| S-4 | Dec. 21, 2016 | S-4 | View Document |
| 4/A | Dec. 20, 2016 | FORM 4/A | View Document |
| 4 | Dec. 14, 2016 | FORM 4 | View Document |
| SC 13G/A | Dec. 14, 2016 | SC 13G/A | View Document |
| 8-K | Dec. 6, 2016 | 8-K | View Document |
| 8-K | Dec. 1, 2016 | 8-K | View Document |
| SC 13D | Nov. 25, 2016 | - | View Document |
| 8-K | Nov. 16, 2016 | 8-K | View Document |
| 10-Q | Nov. 14, 2016 | 10-Q | View Document |
| 8-K | Nov. 2, 2016 | 8-K | View Document |
| 425 | Nov. 2, 2016 | 8-K | View Document |
| 8-K | Oct. 25, 2016 | 8-K | View Document |
| 3 | Sept. 20, 2016 | FORM 3 | View Document |
| 8-K | Sept. 2, 2016 | 8-K | View Document |
| 8-K | Aug. 12, 2016 | 8-K | View Document |
| 10-Q | Aug. 11, 2016 | 10-Q | View Document |
| 8-K | Aug. 8, 2016 | 8-K | View Document |
| EFFECT | July 18, 2016 | - | View Document |
| CORRESP | July 14, 2016 | - | View Document |
| UPLOAD | July 12, 2016 | - | View Document |
| S-3 | July 7, 2016 | S-3 | View Document |
| 8-K | June 30, 2016 | 8-K-WARRANT_AMENDMENT | View Document |
| 8-K | June 28, 2016 | 8-K- ANNUAL MEETING | View Document |
| 8-K | May 24, 2016 | 8-K | View Document |
| 4 | May 18, 2016 | FORM 4 | View Document |
| 4 | May 18, 2016 | FORM 4 | View Document |
| 4 | May 18, 2016 | FORM 4 | View Document |
| 4 | May 18, 2016 | FORM 4 | View Document |
| 8-K | May 12, 2016 | 8-K | View Document |
| 10-Q | May 11, 2016 | 10-Q | View Document |
| DEFA14A | May 5, 2016 | DEFA14A ADDITIONAL PROXY MATERIALS | View Document |
| D | May 2, 2016 | - | View Document |
| DEF 14A | April 29, 2016 | DEF 14A | View Document |
| 4 | April 25, 2016 | FORM 4 | View Document |
| 4 | April 25, 2016 | FORM 4 | View Document |
| 8-K | April 15, 2016 | 8-K | View Document |
| 8-K | April 15, 2016 | 8-K | View Document |
| 8-K | March 31, 2016 | 8-K | View Document |
| 10-K | March 30, 2016 | 10-K | View Document |
| SC 13G | Feb. 19, 2016 | SC 13G | View Document |
| SC 13G/A | Feb. 16, 2016 | TGEN SC 13G/A OF JOSEPH RITCHIE | View Document |
| SC 13G/A | Feb. 16, 2016 | SC 13G/A | View Document |
| SC 13G/A | Feb. 16, 2016 | SC 13G/A | View Document |
| SC 13G/A | Feb. 16, 2016 | TGEN SC 13G/A OF JOHN N. HATSOPOULOS | View Document |
| 4 | Jan. 22, 2016 | FORM 4 | View Document |
| D | Jan. 14, 2016 | - | View Document |
| 8-K | Dec. 31, 2015 | 8-K | View Document |
| 8-K | Nov. 13, 2015 | 8-K | View Document |
| 10-Q | Nov. 10, 2015 | 10-Q | View Document |
| 8-K | Oct. 19, 2015 | 8-K | View Document |
| 424B3 | Oct. 5, 2015 | 424B3 | View Document |
| 8-K | Oct. 5, 2015 | 8-K | View Document |
| CORRESP | Sept. 30, 2015 | - | View Document |
| EFFECT | Sept. 30, 2015 | - | View Document |
| UPLOAD | Sept. 30, 2015 | - | View Document |
| S-3/A | Sept. 29, 2015 | S-3/A | View Document |
| CORRESP | Sept. 28, 2015 | - | View Document |
| S-3/A | Sept. 23, 2015 | S-3/A | View Document |
| CORRESP | Sept. 23, 2015 | - | View Document |
| UPLOAD | Sept. 15, 2015 | - | View Document |
| 8-K | Sept. 3, 2015 | 8-K | View Document |
| S-3/A | Sept. 1, 2015 | S-3/A | View Document |
| 8-K | Aug. 13, 2015 | 8-K | View Document |
| D | Aug. 12, 2015 | - | View Document |
| 8-K | Aug. 6, 2015 | 8-K | View Document |
| 10-Q | Aug. 6, 2015 | 10-Q | View Document |
| UPLOAD | July 16, 2015 | - | View Document |
| CORRESP | July 13, 2015 | - | View Document |
| S-3 | June 22, 2015 | S-3 | View Document |
| 8-K | June 18, 2015 | 8-K | View Document |
| 8-K | June 17, 2015 | 8-K | View Document |
| 4 | June 1, 2015 | FORM 4 | View Document |
| DEFA14A | May 11, 2015 | DEFA14A | View Document |
| 8-K | May 11, 2015 | 8-K | View Document |
| 10-Q | May 11, 2015 | 10-Q | View Document |
| DEF 14A | April 30, 2015 | PROXY STATEMENT & PROXY CARD | View Document |
| 10-K | March 25, 2015 | 10-K | View Document |
| SC 13G | Feb. 23, 2015 | SC 13G | View Document |
| SC 13G | Feb. 18, 2015 | SC 13G J. RITCHIE | View Document |
| SC 13G | Feb. 18, 2015 | SC 13G JOHN N. HATSOPOULOS | View Document |
| SC 13G | Feb. 18, 2015 | SC 13G DR. GEORGE N HATSOPOULOS | View Document |
| D | Feb. 18, 2015 | - | View Document |
| 8-K | Jan. 30, 2015 | 8-K | View Document |
| 8-K | Jan. 2, 2015 | 8-K | View Document |
| 424B3 | Dec. 24, 2014 | 424B3 | View Document |
| 4 | Dec. 22, 2014 | FORM 4 | View Document |
| 3 | Dec. 22, 2014 | FORM 3 | View Document |
| 4 | Dec. 22, 2014 | FORM 4 | View Document |
| EFFECT | Dec. 5, 2014 | - | View Document |
| CORRESP | Dec. 5, 2014 | - | View Document |
| S-3/A | Dec. 5, 2014 | S-3/A | View Document |
| CORRESP | Dec. 5, 2014 | - | View Document |
| CORRESP | Dec. 4, 2014 | - | View Document |
| 4 | Dec. 4, 2014 | FORM 4 | View Document |
| 4 | Dec. 1, 2014 | FORM 4 | View Document |
| UPLOAD | Dec. 1, 2014 | - | View Document |
| S-3/A | Nov. 26, 2014 | S-3/A | View Document |
| CORRESP | Nov. 26, 2014 | - | View Document |
| 3 | Nov. 19, 2014 | FORM 3 | View Document |
| 8-K | Nov. 14, 2014 | 8-K | View Document |
| 10-Q | Nov. 14, 2014 | 10-Q | View Document |
| UPLOAD | Nov. 4, 2014 | - | View Document |
| 8-K | Nov. 3, 2014 | 8-K | View Document |
| S-3 | Oct. 28, 2014 | S-3 | View Document |
| 8-K | Oct. 9, 2014 | 8-K | View Document |
| 424B3 | Oct. 8, 2014 | 424B3 SUPPLEMENT #1 PROSPECTUS FILED JUNE 27, 2014 | View Document |
| 8-K | Sept. 17, 2014 | 8-K | View Document |
| 8-K | Aug. 29, 2014 | 8-K | View Document |
| 8-K/A | Aug. 19, 2014 | 8-K/A | View Document |
| 3 | Aug. 18, 2014 | FORM 3 | View Document |
| 8-K | Aug. 15, 2014 | 8-K | View Document |
| 10-Q | Aug. 14, 2014 | 10-Q | View Document |
| DEF 14C | July 16, 2014 | DEF 14C | View Document |
| 8-K | July 14, 2014 | 8-K | View Document |
| 8-K | July 3, 2014 | 8-K | View Document |
| EFFECT | July 2, 2014 | - | View Document |
| CORRESP | July 1, 2014 | - | View Document |
| S-1/A | June 27, 2014 | S-1/A | View Document |
| CORRESP | June 20, 2014 | - | View Document |
| S-1/A | June 20, 2014 | S-1/A | View Document |
| UPLOAD | June 17, 2014 | - | View Document |
| CORRESP | June 16, 2014 | - | View Document |
| S-1/A | June 16, 2014 | S-1/A | View Document |
| 8-K | June 3, 2014 | 8-K | View Document |
| 3 | May 22, 2014 | FORM 3 | View Document |
| 3 | May 22, 2014 | FORM 3 | View Document |
| 3 | May 22, 2014 | FORM 3 | View Document |
| 3 | May 22, 2014 | FORM 3 | View Document |
| 3 | May 22, 2014 | FORM 3 | View Document |
| 3 | May 22, 2014 | FORM 3 | View Document |
| 3 | May 22, 2014 | FORM 3 | View Document |
| 3 | May 22, 2014 | FORM 3 | View Document |
| 8-K | May 20, 2014 | 8-K | View Document |
| CERTNAS | May 20, 2014 | AUTO-GENERATED PAPER DOCUMENT | View Document |
| 424B4 | May 19, 2014 | 424B4 | View Document |
| 8-K | May 15, 2014 | 8-K | View Document |
| 10-Q | May 15, 2014 | 10-Q | View Document |
| EFFECT | May 12, 2014 | - | View Document |
| 8-A12B | May 8, 2014 | 8-A12B | View Document |
| CORRESP | May 8, 2014 | - | View Document |
| CORRESP | May 8, 2014 | - | View Document |
| S-1/A | April 23, 2014 | FORM S-1/A | View Document |
| UPLOAD | April 21, 2014 | - | View Document |
| S-1/A | April 17, 2014 | FORM S-1/A | View Document |
| 10-K/A | April 1, 2014 | 10-K/A | View Document |
| 8-K | April 1, 2014 | 8-K | View Document |
| 10-K | March 31, 2014 | 10-K | View Document |
| UPLOAD | Feb. 27, 2014 | - | View Document |
| UPLOAD | Feb. 27, 2014 | - | View Document |
| S-1 | Feb. 7, 2014 | FORM S-1 | View Document |
| S-1 | Feb. 6, 2014 | S-1 | View Document |
| 8-K | Dec. 30, 2013 | 8-K | View Document |
| 8-K | Dec. 6, 2013 | 8-K | View Document |
| 8-K | Nov. 26, 2013 | 8-K | View Document |
| 10-Q | Nov. 14, 2013 | 10-Q | View Document |
| 8-K | Nov. 13, 2013 | 8-K | View Document |
| 8-K | Nov. 8, 2013 | 8-K | View Document |
| D | Oct. 31, 2013 | - | View Document |
| 8-K | Oct. 21, 2013 | 8-K | View Document |
| RW | Oct. 4, 2013 | FORM RW | View Document |
| S-1/A | Oct. 1, 2013 | S-1/A | View Document |
| CERTNAS | Oct. 1, 2013 | AUTO-GENERATED PAPER DOCUMENT | View Document |
| EFFECT | Oct. 1, 2013 | - | View Document |
| 3 | Oct. 1, 2013 | OWNERSHIP DOCUMENT | View Document |
| 3 | Oct. 1, 2013 | OWNERSHIP DOCUMENT | View Document |
| 3 | Oct. 1, 2013 | OWNERSHIP DOCUMENT | View Document |
| 3 | Oct. 1, 2013 | OWNERSHIP DOCUMENT | View Document |
| 3 | Oct. 1, 2013 | OWNERSHIP DOCUMENT | View Document |
| 3 | Oct. 1, 2013 | OWNERSHIP DOCUMENT | View Document |
| 3 | Oct. 1, 2013 | OWNERSHIP DOCUMENT | View Document |
| 3 | Oct. 1, 2013 | OWNERSHIP DOCUMENT | View Document |
| 3 | Oct. 1, 2013 | OWNERSHIP DOCUMENT | View Document |
| S-1/A | Sept. 30, 2013 | AMENDMENT TO FORM S-1 | View Document |
| 8-A12B | Sept. 30, 2013 | 8-A12B | View Document |
| S-1/A | Sept. 3, 2013 | S-1/A | View Document |
| 10-Q | Aug. 14, 2013 | 10-Q | View Document |
| 8-K | July 25, 2013 | FORM 8-K | View Document |
| 8-K | July 3, 2013 | 8-K | View Document |
| DEF 14C | July 2, 2013 | DEF 14C | View Document |
| CT ORDER | July 2, 2013 | - | View Document |
| PRE 14C | June 21, 2013 | PRE 14C | View Document |
| S-1 | June 3, 2013 | FORM S-1 | View Document |
| 8-K | May 20, 2013 | 8-K | View Document |
| 10-Q | May 14, 2013 | 10-Q | View Document |
| 8-K | May 2, 2013 | 8-K | View Document |
| DEF 14C | April 25, 2013 | INFORMATION STATEMENT | View Document |
| S-8 | April 15, 2013 | S-8 | View Document |
| PRE 14C | April 15, 2013 | PRE 14C | View Document |
| DEF 14C | April 11, 2013 | DEF 14C | View Document |
| 10-K | March 27, 2013 | 10-K | View Document |
| CT ORDER | Feb. 21, 2013 | - | View Document |
| CORRESP | Feb. 14, 2013 | - | View Document |
| S-1/A | Feb. 14, 2013 | S-1/A | View Document |
| EFFECT | Feb. 14, 2013 | - | View Document |
| CORRESP | Feb. 14, 2013 | - | View Document |
| UPLOAD | Feb. 13, 2013 | - | View Document |
| S-1/A | Feb. 11, 2013 | S-1/A | View Document |
| CORRESP | Feb. 11, 2013 | - | View Document |
| CORRESP | Feb. 5, 2013 | - | View Document |
| S-1/A | Feb. 5, 2013 | S-1/A | View Document |
| UPLOAD | Jan. 25, 2013 | - | View Document |
| CORRESP | Jan. 16, 2013 | - | View Document |
| S-1/A | Jan. 15, 2013 | S-1/A | View Document |
| UPLOAD | Jan. 4, 2013 | - | View Document |
| CORRESP | Dec. 21, 2012 | - | View Document |
| S-1/A | Dec. 21, 2012 | S-1/A | View Document |
| UPLOAD | Oct. 16, 2012 | - | View Document |
| S-1/A | Oct. 2, 2012 | AMENDMENT NO. 3 | View Document |
| UPLOAD | Aug. 2, 2012 | - | View Document |
| S-1/A | July 19, 2012 | FORM S-1/A | View Document |
| UPLOAD | May 24, 2012 | - | View Document |
| S-1/A | April 27, 2012 | AMENDMENT TO FORM S-1 | View Document |
| UPLOAD | Jan. 18, 2012 | - | View Document |
| S-1 | Dec. 22, 2011 | FORM S-1 | View Document |