# Commonwealth Fusion Systems LLC — Form D

Commonwealth Fusion Systems LLC of CAMBRIDGE, MA, a company, filed a Form D exempt-offering notice with the SEC on 2018-06-27. The offering totals $100.0M, of which $64.6M was reported sold. Industry: Other Energy.

## Offering

- Filed: 2018-06-27
- Form: D
- Accession: 0001744079-18-000002
- Industry: Other Energy
- Exemptions: 06b
- Total offering: $100.0M
- Amount sold: $64.6M
- Remaining: $35.4M
- Investors: 5
- Date of first sale: 2018-05-30
- Security types: equity
- Revenue range: Decline to Disclose
- SEC file number: 021-315525

## Issuer

- Name: Commonwealth Fusion Systems LLC
- CIK: 0001744079
- Entity type: Limited Liability Company
- Jurisdiction: DELAWARE
- Incorporated: 2017
- Address: 148 Sidney Street, CAMBRIDGE, MA, 02139
- Phone: 610-909-5219

## Officers, directors & promoters (9)

| Name | Role | Location |
| --- | --- | --- |
| Mitchell Goldstein | Executive Officer | New York, NY |
| Katie Rae | Director | Cambridge, MA |
| Alan Eustace | Director | Denver, CO |
| Daniel Brunner | Executive Officer | Indianapolis, IN |
| MASSIMILIANO PIERI | Director | NATICK, MA |
| Brandon Sorbom | Director | Cambridge, MA |
| Brandon Sorbom | Executive Officer | Cambridge, MA |
| Robert Mumgaard | Director | Cambridge, MA |
| Robert Mumgaard | Executive Officer | Cambridge, MA |

## Other filings by this issuer (3)

| Filed | Form | Offering | Sold |
| --- | --- | --- | --- |
| [2021-12-02](https://search.stillhousedata.com/formd/0001744079-21-000001) | D | $1.8B | $1.8B |
| [2020-05-26](https://search.stillhousedata.com/formd/0001744079-20-000001) | D | $100.0M | $80.6M |
| [2019-07-01](https://search.stillhousedata.com/formd/0001744079-19-000002) | D/A | $115.0M | $115.0M |

## More

- [CIK 1744079 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1744079&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/formd/0001744079-18-000002.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.
