Mastra
PrivateLast Round
Series A
Apr 9, 2026
Total Funding Raised
$35M
Momentum
Top 5%
of companies Caplight tracks
Company Overview
Mastra operates in AI, Data & Cloud Infrastructure and is based in San Francisco, California. Its latest recorded funding round was a Series A round in April 2026.
Mastra is a software company that provides an open-source TypeScript framework for building, deploying, and managing AI agents and workflows.
Sector
AI, Data & Cloud Infrastructure
Verticals
ML Platforms, Workflow Automation, NLP & Conversational AI
Business Model
B2B
Customer Profile
Usage-Based SaaS, Subscription SaaS
AI Layer
Infrastructure
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Mastra Comparables
Compare Mastra with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| VoltAgent | 88% | |
| Superagent | 87% | |
| LlamaIndex | 87% |
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Mastra Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series A | Apr 9, 2026 | ||||
| Seed | Oct 8, 2025 |
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Key People
Founding team and executive leadership
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Mastra Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Gradient Ventures | Series A, Seed |
| Pioneer Fund | Seed |
| SV Angel | Seed |
| Palm Drive Capital | Seed |
| Defy Partners | Seed |
| Orange Collective | Seed |
| Y Combinator | Series A, Seed |
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Market signals
Structured signals derived from secondary market and firmographic data.
- Aug 24, 2026
Open roles increased to 11, 2.2x the trailing average.
- Aug 16, 2026
Grew 16% QoQ, from 49 to 57 employees.
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Mastra 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 Mastra's valuation, stock price, and market status.
Is Mastra a public or private company?
Mastra is a private company.
What is the current stock price of Mastra?
Mastra is a private company, so its shares have no public market price. Caplight tracks Mastra's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Mastra worth (valuation)?
Valuation information for Mastra is not publicly available.
Can I buy Mastra stock?
Mastra shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Mastra's last funding round?
Mastra's most recent funding round was Series A on April 9, 2026.
Who are the main investors in Mastra?
Key investors in Mastra include Y Combinator, Spark Capital.
Will Mastra IPO soon?
No public IPO plans have been announced for Mastra.
How can I track Mastra secondary market activity?
Caplight tracks bids, offers, and trades in Mastra's shares on secondary markets.