Pro-rata rights entitle an investor to participate in subsequent financings up to their proportional ownership—buying their share of the new round to avoid dilution below their current fully diluted percentage.

How it works

Term sheets grant major investors pro-rata in future qualified financings. When Series B opens, each holder with pro-rata receives notice of allocation—typically based on pre-round ownership times round size. Investors may take full pro-rata, partial, or waive. Founders and leads size the round to accommodate pro-rata before assigning new investor slots.

Pro-rata differs from preemptive rights in label and document location but functions similarly in venture practice. Super pro-rata or doubling rights appear in competitive rounds but are founder-unfriendly.

Why it matters

• Founders: Early investors with pro-rata can consume meaningful round capacity—communicate timelines and lead terms early to avoid conflicts.
• Investors: Pro-rata in breakout companies drives fund returns; missing pro-rata due to reserve shortages hurts DPI.

Common mistake

Assuming all investors have pro-rata—only major holders typically do; angels and small seeds may be excluded unless side letters say otherwise.

Related ideas

See preemptive rights, follow-on, and post-money ownership.