Also known as Pro rata participation rights
Pro rata rights let an existing investor buy enough of a future round to keep their ownership percentage from shrinking.
Key takeaways
Pro rata rights let an existing investor buy enough of a future round to keep their ownership percentage from shrinking. If they own 10% and you raise a new round, they can invest enough to stay at roughly 10% instead of getting diluted. It's a contractual right, usually negotiated into the term sheet.
A seed fund that wrote your first $500K check exercises its pro rata right to invest again in your Series A, holding its ownership steady.
Pro rata rights sound harmless, but they hand a slice of every future round to existing investors before you can offer it to new ones. That can crowd out a hot lead who wants more of the round. Track exactly who holds these rights so your next raise doesn't get awkward.