Key facts
- It has raised $870K across 2 recorded rounds; the latest was Seed Round ($368K) in Feb 2025.
- Notable investors include US National Science Foundation, United States Department of War, MassVentures, National Aeronautics and Space Administration.
- Metamagnetics has filed 3 Form Ds with the SEC since 2024, most recently Feb 2025 ($368K sold to 6 investors).
- Status: Privately Held (backing).
- ·Post-money valuations for all 2 rounds
- ·The complete investor list — 4 names
- ·Watchlist + deal alerts for Metamagnetics
Funding rounds
2 roundsAbout Metamagnetics
Developer of radiofrequency and microwave services intended to enhance the performance of mission-critical security, surveillance and communication systems. The company's products include auto-tuning filters, power electronics cores, ferrite circulators and isolators, ferrite phase shifters, high-power microwave components and microwave ferrite filters, enabling defense and commercial organizations to design and deploy innovative solutions.
- Sector
- Business Products and Services (B2B)
- HQ
- Marlborough, MA, United States
- Founded
- 2009
- Employees
- 37
- Website
- metamag.us/
- Ownership
- Privately Held (backing)
Metamagnetics doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in Metamagnetics shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on Metamagnetics in its N-PORT filings yet. We sweep new filings monthly.