Positron AI
PrivateLast Round
Series C
Sep 10, 2026
Est. Valuation
$5B
Total Funding Raised
$1.19B
Momentum
Top 1%
of companies Caplight tracks
Company Overview
Positron AI is a semiconductor company that develops and manufactures American-made inference hardware and energy-efficient compute systems for generative AI and large language models.
Sector
AI, Data & Cloud Infrastructure
Verticals
Semiconductors, Computing Hardware, Cloud Infrastructure, AI Training Infrastructure
Business Model
B2B
Customer Profile
Hardware Sales, Subscription SaaS
AI Layer
Infrastructure
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Positron AI Comparables
Compare Positron AI with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| d-Matrix | 87% | |
| MatX | 85% | |
| SambaNova Systems | 84% |
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Positron AI Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series C | Sep 10, 2026 | ||||
| Series B | Feb 4, 2026 | ||||
| Series A | Jul 28, 2025 | ||||
| Seed | Feb 11, 2025 |
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Secondary Market Activity
Bids, offers, and trades by month
| Operation | Date | Price | Size | Share Class | Structure |
|---|---|---|---|---|---|
TRADE |
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Key People
Founding team and executive leadership
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Positron AI Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Andra Capital | Series C |
| Liberty Global Ventures | Series C |
| New Enterprise Associates | Series C |
| Atreides Management | Seed, Series B, Series A, Series C |
| 1517 Fund | Series C, Series B, Series A |
| Boardman Bay Capital Management | Series C |
| Oakseed Ventures | Pre Seed |
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Market signals
Structured signals derived from secondary market and firmographic data.
- Sep 19, 2026
Grew 19% QoQ, from 84 to 100 employees.
- Sep 10, 2026
$875M round with participation from NEA and Cisco Investments.
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Recent news
Latest coverage and updates
- partners_withOct 20, 2026
On Oct 20th '26 in Nevada, Positron AI and General Compute partner to expand access to memory-first AI inference infrastructure, with General Compute purchasing Positron AI's Atlas systems and committing to next-generation Titan systems.
- has_valuationSep 11, 2026
Positron AI raises $875m at a $5bn post-money valuation, more than quadrupling its valuation from February, which exceeds $1B.
- receives_financingSep 11, 2026
Positron AI announced an $875M Series C financing on Sep 10th '26 in Nevada, co-led by NEA, Atreides Management, Valor Equity Partners, Andra Capital, SemiAnalysis Capital, and Jim Clark, to support the Asimov silicon tapeout and Titan system production ramp.
- hiresSep 10, 2026
Positron AI is set to appoint Dylan Patel to its board of directors as part of its financing, announced in Nevada on Sep 10th '26.
- hiresSep 10, 2026
As part of its financing, Positron AI is set to add Thomas Jermoluk from Jim Clark Office to its board of directors in Nevada on Sep 10th '26.
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Positron AI 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 Positron AI's valuation, stock price, and market status.
Is Positron AI a public or private company?
Positron AI is a private company.
What is the current stock price of Positron AI?
Positron AI is a private company, so its shares have no public market price. Caplight tracks Positron AI's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Positron AI worth (valuation)?
Positron AI's valuation is estimated at $5.0B based on funding round data.
Can I buy Positron AI stock?
Positron AI shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Positron AI's last funding round?
Positron AI's most recent funding round was Series C on September 10, 2026.
Who are the main investors in Positron AI?
Key investors in Positron AI include Atreides Management, Oakseed Ventures, DFJ Growth, Unless Management, Valor Equity Partners.
Will Positron AI IPO soon?
No public IPO plans have been announced for Positron AI.
How can I track Positron AI secondary market activity?
Caplight tracks bids, offers, and trades in Positron AI's shares on secondary markets.