CEO Harrison ChaseFounded 2022HQ San Francisco, US
LangChain is a private AI software company that provides an agent engineering platform and open-source frameworks for building, testing, and deploying LLM-based applications. It was founded in 2022 and is headquartered in San Francisco.
Access to pre-IPO shares is available to accredited investors through UpMarket.
Latest Price
$1.25B
Series B, Oct 2025, Perplexity
UpMarket Estimate
$1.5B
Based on UpMarket valuation model
Previous Price
$1.1B
Series B Jul 2025
How to Invest in LangChain Through UpMarket
LangChain shares are not on public exchanges. UpMarket provides accredited investors access through secondary market transactions.
Step 01
Verify accredited investor status
Confirm eligibility under SEC Rule 501 of Regulation D. Income or net worth threshold applies.
Step 02
Create an UpMarket account
Complete KYC/AML onboarding. Typically 1–2 business days. Licensed rep assigned on signup.
Step 03
Review available LangChain offerings
Full offering memoranda and risk disclosures provided before any commitment is required.
Step 04
Complete subscription documents
Review and sign subscription agreement. All documents handled digitally through the platform.
Step 05
Fund your investment
Wire transfer or ACH. $50K minimum. Funds held in custodial account until close.
Pre-IPO investments are illiquid, speculative, and involve risk of total loss of capital.
$1.3B+
UpMarket has brokered over $1.3 billion in alternative investments*
*Includes principal invested and appreciation of investments originated via the UpMarket platform based on historical trade volume and valuation estimates through March 31, 2026. Of the total, approximately $301 million is managed by UpMarket Management, with the remaining originated investments managed by affiliates. Past performance is not predictive of future results.
Valuation Growth Over Time
Post-money valuation by round
Previous roundsMost recent
Date
Round
PPS (split-adj.)
Valuation
Oct 2025
Series B
$1.25B
Jul 2025
Series B
$1.1B
Feb 2024
Series A
$200M
Apr 2023
Seed
Why Investors Are Watching LangChain
Growth Signal
LangChain raised $125M at $1.25B to scale agent engineering
LangChain announced a $125 million Series B at a $1.25 billion valuation to build the platform for agent engineering. The company also said it is shipping LangChain 1.0, LangGraph 1.0, an Insights Agent, and a no-code agent builder.
Competitive Moat
Open-source core plus paid LangSmith and LangGraph support
LangChain’s core framework remains open source, while its monetized products are LangSmith and LangGraph. Contrary Research says this gives the company a SaaS layer on top of a widely used developer framework.
Market Opportunity
LangChain now serves a fast-growing AI infrastructure stack
LangChain is described as AI infrastructure, developer tools, observability, and workflow orchestration company. Fortune called it one of the earliest breakout startups of the generative AI era, and the latest round brought new strategic backers including Databricks, Datadog, and ServiceNow Ventures.
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No. As of March 2026, LangChain is a private company and does not trade on any public stock exchange. Accredited investors can access LangChain shares through UpMarket, a FINRA-registered broker-dealer that specializes in pre-IPO investments.
LangChain 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 LangChain 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. LangChain 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.
The minimum investment for most pre-IPO offerings on UpMarket is $50,000. This amount may vary depending on the specific offering and share availability. There are no fees to create an UpMarket account or browse available investments. Investors only pay transaction-related fees when they complete an investment.
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.
LangChain provides an open-source agent engineering platform for building, testing, and deploying LLM applications and was valued at $1.5B after raising $125M to scale agent engineering — accredited investors can access LangChain stock through UpMarket.