id,date,date_precision,status,transaction_type,round,amount_usd_low,amount_usd_high,lead_or_buyer,co_leads,valuation_usd_low,valuation_usd_high,valuation_basis,valuation_to_run_rate_multiple,multiple_bound,multiple_basis,step_up_vs_prior_closed,price_per_share_usd_low,price_per_share_usd_high,shares,source,source_url,other_source_urls,notes,last_updated
series-c-2026-11-13,2026-11-13,day,Closed round,primary_equity,Series C,300000000,300000000,CapitalG,,3000000000,3000000000,Stated by LangChain,,,,2.4,,,,"LangChain, 13 Nov 2026",https://www.langchain.com/blog/series-c,https://capitalg.com/insights/doubling-down-on-langchain/ https://techcrunch.com/2026/11/13/ai-agent-startup-langchain-hits-3b-valuation/,New investors GIC and DFJ Growth; existing investors IVP and Sapphire Ventures (LangChain).,2026-11-14
series-b-2025-10-20,2025-10-20,day,Closed round,primary_equity,Series B,125000000,125000000,IVP,,1250000000,1250000000,Stated by LangChain,,,,,,,,"LangChain, 20 Oct 2025",https://www.langchain.com/blog/series-b,https://techcrunch.com/2026/11/13/ai-agent-startup-langchain-hits-3b-valuation/,CapitalG and Sapphire Ventures invested (CapitalG; TechCrunch).,2026-11-14
series-a-2024-02-15,2024-02-15,day,Closed round,primary_equity,Series A,25000000,25000000,Sequoia Capital,,,,,,,,,,,,"LangChain, 15 Feb 2024",https://www.langchain.com/blog/langsmith-ga,,,2026-11-14