Insamo is a biotechnology company developing membrane-permeable, orally available cyclic peptides with antibody-like binding affinity. It was founded in 2022 and is headquartered in Berkeley, California.
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Insamo 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 |
|---|---|---|---|
| Feb 2024 | Seed |
Insamo emerged from stealth in February 2024 with $12 million in seed funding from Playground Global, venBio, and MRL Ventures Fund. The company says it is building membrane-permeable, orally available cyclic peptides with antibody-like binding affinity.
Insamo says its discovery platform integrates machine learning, high-throughput screening, genetic engineering, molecular biology, and synthetic chemistry. The company describes its cyclic peptides as "nCycles" and aims to scale discovery around proprietary experimental data.
Insamo positions its technology as a way to develop new therapies for previously undruggable targets by improving macrocycle permeability and oral availability. The company highlights antibody-like binding as a key differentiator for drug discovery across disease areas.
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No. As of March 2026, Insamo is a private company and does not trade on any public stock exchange. Accredited investors can access Insamo shares through UpMarket, a FINRA-registered broker-dealer that specializes in pre-IPO investments.
Insamo 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 Insamo 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 more than $500M in alternative investments since 2019.
Pre-IPO investments carry significant risks. Insamo 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.
There are two primary exit paths for pre-IPO holdings: selling your shares on the secondary market to another buyer, or holding until the company completes an IPO or is acquired. Both paths are subject to transfer restrictions, company approval (right of first refusal), and market conditions. The timing of any exit is unpredictable, and investors should plan for a multi-year holding period.
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UpMarket's valuation estimate of 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.
Insamo is a biotechnology company developing membrane-permeable, orally available cyclic peptides with antibody-like binding affinity, and it launched with a $12 million seed round in 2022 to build oral cyclic peptide programs — accredited investors can access Insamo stock through UpMarket.