Pre-money ownership is every holder’s fully diluted percentage immediately before a financing event— the snapshot used to measure how much the round dilutes existing shareholders.

How it works

Cap table software exports pre-money shares: founders, employees, prior investors, and converting instruments. Term sheet negotiations may expand the option pool on a pre-money basis, diluting founders before new investor money arrives—a key economic lever. After the round, post-money ownership reflects the new reality.

Comparing pre- and post-money lines shows round impact per stakeholder. Investors with pro-rata rights aim to maintain ownership from pre-money targets by investing their share of the new round.

Why it matters

• Founders: Pool refresh on pre-money terms can cost more dilution than headline valuation suggests—model both steps.
• Investors: Pre-money ownership sets pro-rata investment amounts to avoid accidental dilution in competitive rounds.

Common mistake

Confusing pre-money valuation with pre-money ownership. Valuation is a price; ownership is a cap table percentage—related but not interchangeable without share counts.

Related ideas

See post-money ownership, option pool shuffle, and cap table.