# Metalmark Innovations, PBC — Form D

Metalmark Innovations, PBC of CAMBRIDGE, MA, a company, filed a Form D exempt-offering notice with the SEC on 2022-02-24. The offering totals $3.5M, of which $3.3M was reported sold. Industry: Other Technology.

## Offering

- Filed: 2022-02-24
- Form: D
- Accession: 0001803918-22-000002
- Industry: Other Technology
- Exemptions: 06b
- Total offering: $3.5M
- Amount sold: $3.3M
- Remaining: $250K
- Minimum investment: $50K
- Investors: 4
- Date of first sale: 2022-02-17
- Security types: equity
- Revenue range: Decline to Disclose
- SEC file number: 021-434838

## Issuer

- Name: Metalmark Innovations, PBC
- CIK: 0001803918
- Entity type: Other
- Jurisdiction: DELAWARE
- Incorporated: 2017
- Address: 767 CONCORD AVE., SUITE 2-1, CAMBRIDGE, MA, 02138
- Phone: 617-714-4026

## Officers, directors & promoters (9)

| Name | Role | Location |
| --- | --- | --- |
| Denise Chen | Director | Cambridge, MA |
| Sissi Liu | Director | Cambridge, MA |
| Tanya Shirman | Director | Cambridge, MA |
| Sissi Liu | Executive Officer | Cambridge, MA |
| Elijah Shirman | Executive Officer | Cambridge, MA |
| Tanya Shirman | Executive Officer | Cambridge, MA |
| Joanna Aizenberg | Director | Cambridge, MA |
| Joanna Aizenberg | Executive Officer | Cambridge, MA |
| Elijah Shirman | Director | Cambridge, MA |

## Other filings by this issuer (2)

| Filed | Form | Offering | Sold |
| --- | --- | --- | --- |
| [2021-02-23](https://search.stillhousedata.com/formd/0001803918-21-000001) | D | $500K | $500K |
| [2020-02-20](https://search.stillhousedata.com/formd/0001803918-20-000001) | D | $150K | $150K |

## More

- [CIK 1803918 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1803918&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/formd/0001803918-22-000002.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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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.
