Key facts
- Arkenstone Defense’s last known valuation is $40.0M (Jul 2025).
- It has raised $8.0M across 2 recorded rounds; the latest was Seed Round ($600K) in Jul 2025.
- Notable investors include Tau Ventures.
- Arkenstone Defense has filed 2 Form Ds with the SEC, most recently Jul 2025 ($600K sold to 2 investors).
- Status: Privately Held (backing).
Investors
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Funding rounds
2 roundsAbout Arkenstone Defense
The company is currently operating in stealth mode. At the time of research, no business description was available.
- Sector
- Business Products and Services (B2B)
- HQ
- Menlo Park, CA, United States
- Founded
- 2025
- Website
- arkenstonedefense.com/
- Ownership
- Privately Held (backing)
PA Mark — not yet priced
Arkenstone Defense 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.
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Recorded secondary trades
No prints on record
No secondary trades in Arkenstone Defense shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
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Institutional fund marks
No fund marks yet
No SEC-registered fund has reported a fair-value mark on Arkenstone Defense in its N-PORT filings yet. We sweep new filings monthly.
Pro members can request priority coverage with a 48-hour turnaround.