# TECOGEN INC.: Form D filings

TECOGEN INC., a manufacturing company in Waltham, MA, filed 5 Form D notices with the SEC between 2013 and 2016. The latest, on May 2, 2016, reports an offering of no set size with nothing sold yet to 14 investors.

Find out what TECOGEN INC. does, who founded it and who invested, beyond what the filing says. $10 of credit on sign-up, no card.

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## The full lists

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- [Form D filings in Massachusetts](https://specstream.ai/data/form-d/state/massachusetts): 1,533 rows, by operating companies, filed since November 1, 2024, $76.65, or the new rows each week for $19 a month. Buy: https://specstream.ai/data/form-d/state/massachusetts
- [Form D filings in Manufacturing](https://specstream.ai/data/form-d/industry/manufacturing): 774 rows, by operating companies, filed since November 1, 2024, $38.70, or the new rows each week for $19 a month. Buy: https://specstream.ai/data/form-d/industry/manufacturing

SpecStream is the live web data engine for teams and agents. It reads every Form D on SEC EDGAR the day it is filed, and this page is that reading. Ask for your own cut (a state, an industry, a size) and new filings arrive in your sheet, CRM, Slack or agent as they land.

## Company details from the filing

- Address: 45 FIRST AVENUE, Waltham, MA, 02451
- Phone: (781) 466-6400
- Industry: Manufacturing
- Entity type: Corporation
- Incorporated in: Delaware
- Revenue range: $5,000,001 - $25,000,000
- Exemptions claimed: Rule 506(b)
- SEC identifier (CIK): 1537435

## Form D filings

| Filed | Type | Offering | Sold | Remaining | Investors | First sale | Filing |
| --- | --- | --- | --- | --- | --- | --- | --- |
| May 2, 2016 | New notice | Indefinite | $0 | Indefinite | 14 | Apr 11, 2016 | [sec.gov](https://www.sec.gov/Archives/edgar/data/1537435/000153743516000114/0001537435-16-000114-index.htm) |
| Jan 14, 2016 | New notice | $3,000,000 | $3,000,000 | $0 | 0 | Dec 28, 2015 | [sec.gov](https://www.sec.gov/Archives/edgar/data/1537435/000153743516000085/0001537435-16-000085-index.htm) |
| Aug 12, 2015 | New notice | $5,000,000 | $5,000,000 | $0 | 0 | Aug 3, 2015 | [sec.gov](https://www.sec.gov/Archives/edgar/data/1537435/000153743515000043/0001537435-15-000043-index.htm) |
| Feb 18, 2015 | New notice | $1,000,000 | $1,000,000 | $0 | 1 | Jan 28, 2015 | [sec.gov](https://www.sec.gov/Archives/edgar/data/1537435/000153743515000011/0001537435-15-000011-index.htm) |
| Oct 31, 2013 | New notice | $10,000,000 | $300,000 | $9,700,000 | 1 | Oct 16, 2013 | [sec.gov](https://www.sec.gov/Archives/edgar/data/1537435/000153743513000062/0001537435-13-000062-index.htm) |

## Executive officers and directors named in the filing

| Name | Role | Note in the filing |
| --- | --- | --- |
| Ahmed F. Ghoniem | Director |  |
| David A Garrison | Executive Officer |  |
| Robert A Panora | Executive Officer |  |
| Joseph E Aoun | Director |  |
| Angelina M Galiteva | Director |  |
| Earl R Lewis | Director |  |
| Charles T Maxwell | Director |  |
| John N Hatsopoulos | Executive Officer, Director |  |
| Benjamin M Locke | Executive Officer |  |

## Other manufacturing companies in Massachusetts that filed recently

- [AeroShield Materials, Inc.](https://specstream.ai/data/form-d/company/aeroshield-materials-inc-1820832) $10 million · Oct 15, 2026
- [One Mighty Mill, Inc.](https://specstream.ai/data/form-d/company/one-mighty-mill-inc-2147892) $10.3 million · Aug 17, 2026

[Every Form D from the week of May 2, 2016](https://specstream.ai/data/form-d/week/2016-05-02) · [All recent filings in Massachusetts](https://specstream.ai/data/form-d/state/massachusetts) · [All recent Manufacturing filings](https://specstream.ai/data/form-d/industry/manufacturing)

Read from SEC EDGAR. Amount sold is what TECOGEN INC. reported on the day it filed; on an offering that is still open, a later amendment can raise it. Free to reuse with credit to SpecStream under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/).