Rune
PrivateLast Round
Series A
Sep 16, 2026
Total Funding Raised
$45.6M
Momentum
Top 1%
of companies Caplight tracks
Company Overview
Rune operates in AI, Data & Cloud Infrastructure and is based in Palo Alto, California. Its latest recorded funding round was a Series A round in September 2026.
Rune is a climate-technology company that develops modular, behind-the-meter micro data centers designed to convert otherwise wasted or curtailed renewable energy from solar and wind farms into high-performance compute capacity.
Sector
AI, Data & Cloud Infrastructure
Verticals
AI Training Infrastructure, Renewable Energy, Cloud Infrastructure, Energy Management, Edge Computing
Business Model
B2B
Customer Profile
Usage-Based SaaS, Revenue Share
AI Layer
Infrastructure
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Rune Comparables
Compare Rune with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Nodiac | 84% | |
| WinDC | 84% | |
| Earth Wind & Power | 82% |
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Rune Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series A | Sep 16, 2026 | ||||
| VC Round | Aug 15, 2026 | ||||
| Seed | Jul 1, 2024 |
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Key People
Founding team and executive leadership
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Rune Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Vestas Ventures | Series A |
| Union Square Ventures | Series A, VC Round |
| M1C | Seed |
| Logos Fund | Series A |
| Lowercarbon Capital | Series A, VC Round |
| Committed Capital | Series A |
| Spark Capital | Series A |
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Market signals
Structured signals derived from secondary market and firmographic data.
- Sep 16, 2026
$40M round led by Spark Capital.
- Aug 20, 2026
Monthly visitors increased 312% MoM, reaching 5.5K.
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Rune Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
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Frequently Asked Questions
Common questions about Rune's valuation, stock price, and market status.
Is Rune a public or private company?
Rune is a private company.
What is the current stock price of Rune?
Rune is a private company, so its shares have no public market price. Caplight tracks Rune's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Rune worth (valuation)?
Valuation information for Rune is not publicly available.
Can I buy Rune stock?
Rune shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Rune's last funding round?
Rune's most recent funding round was Series A on September 16, 2026.
Who are the main investors in Rune?
Key investors in Rune include Spark Capital.
Will Rune IPO soon?
No public IPO plans have been announced for Rune.
How can I track Rune secondary market activity?
Caplight tracks bids, offers, and trades in Rune's shares on secondary markets.