Key facts
- It has raised $4.0M; the latest was Seed Round ($4.0M) in Feb 2026.
- Notable investors include FJ Labs, Breakthrough Energy, Spacecadet Ventures, Anorak Ventures, Stanford University — 8 tracked in total.
- Status: Privately Held (backing).
- ·The complete investor list — 8 names
- ·Watchlist + deal alerts for Arinna
- ·The full record, as it builds
Funding rounds
No funding rounds for Arinna are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About Arinna
Developer of lightweight and flexible solar panel technology designed to improve power generation in space-constrained and mobile environments. The company focuses on high-power-per-mass photovoltaic modules for applications such as aerospace, electric vehicles, and portable electronics, enabling improved energy performance where conventional panels are limited by weight, form factor, and performance.
- Sector
- Energy
- HQ
- South San Francisco, CA, United States
- Founded
- 2024
- Employees
- 8
- Website
- arinna.xyz/
- Ownership
- Privately Held (backing)
Arinna 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 Arinna 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 Arinna in its N-PORT filings yet. We sweep new filings monthly.