Pro Rata Rights

Pro rata rights (from the Latin "in proportion") give an existing investor the option — not the obligation — to invest additional money in future funding rounds to maintain their ownership percentage. Without pro rata rights, an investor's stake gets diluted every time new shares are issued. With pro rata rights, they can invest enough in the new round to keep their percentage the same.

Here's how it works in practice: if an investor owns 5% of your company and you're raising a new round, their pro rata right allows them to invest enough to maintain that 5% ownership. The amount they need to invest depends on the new round size and terms. Pro rata rights are typically granted in the investment agreement and are one of the most commonly negotiated terms in early-stage deals.

Pro rata rights matter more as your company succeeds. If an angel invested $50K at your seed round and owns 2%, their pro rata right in a $10M Series A could require a $200K+ check to maintain their percentage — which many angels can't afford. In practice, investors often exercise partial pro rata or waive their rights entirely. For venture funds, pro rata rights are essential — they allow funds to double down on winners, which is the core of venture capital portfolio strategy. Some funds won't invest without them.

As a founder, pro rata rights affect how much of each new round is "spoken for" before you even start fundraising. If existing investors exercise their pro rata rights, that reduces the amount available for new investors — which can be a positive signal (existing investors believe in you) or a complication (less room for a new lead investor). Understanding who has pro rata rights and whether they'll exercise them is essential for planning your fundraising round.