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Series B

Equity
$580Mraised
$4Bpost-money valuation
Company
Lead Investor
FTX / Sam Bankman Fried
Date
Apr 2022
Source
Notes

Series B led by Sam Bankman-Fried and Caroline Ellison of FTX. Post-money valuation of $4B. FTX subsequently collapsed in 2022.

Other Rounds by Anthropic

7
RoundRaisedValuationLead InvestorDate
Series G(equity)$30B$380BGIC / CoatueFeb 2026
Series F(equity)$13B$183BICONIQSep 2025
Series E(equity)$3.5B$62BLightspeed Venture PartnersMar 2025
Series D(equity)$750M$18BMenlo VenturesFeb 2024
Series D (Amazon Strategic Investment)(equity)$4B$18BAmazonSep 2023
Series C(equity)$450MSpark CapitalMay 2023
Series A(equity)$124M$550MDustin Moscovitz / Jaan TallinnMay 2021
Series B | Funding Rounds | Longterm Wiki