Definition
An independent appraisal of fair market value used for option pricing (US).
Examples
The 409A valuation set the option strike price.
Origin
Modern business/startup term; used as practical shorthand in product, growth, and investing.
Use it in Nautis
Track 409a valuation alongside everything else in your startup.
Nautis brings planning, fundraising, finance, and operations into one AI-native workspace — so concepts like 409a valuation stop being spreadsheet trivia and start showing up where decisions get made.