Pasteur Labs develops Simulation Intelligence technologies that integrate AI, physics simulation, and applied science. It focuses on industrial R&D, energy security, and physical and life sciences use cases.
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Pasteur Labs shares are not on public exchanges. UpMarket provides accredited investors access through secondary market transactions.
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| Date | Round | PPS (split-adj.) | Valuation |
|---|---|---|---|
| 2025 | Undisclosed |
Pasteur Labs acquired FOSAI on Aug. 21, 2025 to accelerate adoption of AI-driven physics simulation for space and defense. The deal came as the company prepared for a public platform launch later in 2025.
Pasteur Labs says its Simulation Intelligence platform natively integrates AI/ML and physics simulation. That positioning targets a specialized workflow in aerospace and defense rather than generic software.
FOSAI is described as a provider of space systems and autonomy solutions for aerospace and defense, giving Pasteur Labs access to that customer set. The acquisition broadens its addressable market beyond simulation software into mission-critical autonomy use cases.
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No. As of March 2026, Pasteur Labs is a private company and does not trade on any public stock exchange. Accredited investors can access Pasteur Labs shares through UpMarket, a FINRA-registered broker-dealer that specializes in pre-IPO investments.
Pasteur Labs does not have a public stock price because it is privately held. The most recent known share price comes from its last funding round. Pre-IPO share prices on the secondary market may differ from the last round price depending on supply, demand, and market conditions.
Yes. Accredited investors can indicate interest in Pasteur Labs shares through UpMarket by filling out the form on this page or creating an account at upmarket.co. All pre-IPO offerings are subject to availability and require a $50,000 minimum investment. UpMarket is a FINRA-registered broker-dealer and has brokered alternative investments since 2019.
Pre-IPO investments carry significant risks. Pasteur Labs shares are illiquid, meaning there is no public market to sell them quickly. There is no guaranteed exit timeline or return. The investment is speculative in nature, and investors should be prepared for the possibility of total loss. Valuations of private companies can fluctuate substantially between funding rounds. Investors should consult their financial advisor and review all offering documents before investing.
In a pre-IPO transaction, accredited investors purchase shares from existing shareholders (such as employees, early investors, or other holders) through secondary market platforms. The company itself does not issue new shares in these transactions. UpMarket facilitates these trades as a FINRA-registered broker-dealer, handling compliance, documentation, and settlement on behalf of both parties.
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UpMarket's valuation estimate is derived from a proprietary model that incorporates multiple data sources: funding round data (Caplight), revenue estimates (Sacra), secondary market pricing, and public company comparables. The model applies a private company discount to the public comp multiple to account for illiquidity and information asymmetry. This estimate is not investment advice and may differ substantially from the price at which shares actually trade.
Pasteur Labs develops Simulation Intelligence technologies that combine AI, physics simulation, and applied science for industrial R&D and energy security, and acquired FOSAI ahead of its platform launch. Accredited investors can access Pasteur Labs stock through UpMarket.