Equity Dilution and Cap Table Management for Early-Stage Founders
Dilution gets confusing fast. You raise a seed round, then a Series A, and suddenly your ownership looks different than you expected. That’s normal, but only if you understand the mechanics before you sign anything. Here’s the plain version of how dilution works across rounds, what your cap table should look like after a Series A, and where founders usually trip up. ### What dilution actually does Every time you sell new shares, your percentage of the company shrinks. That’s dilution. It’s not a bug. You’re trading ownership for capital, and the hope is that capital makes the remaining slice worth more. Say you own 100% before any investment. You sell 20% to a seed investor. You now own 80%. Then you raise a Series A and sell another 25% of the company. Your 80% gets diluted down to 60% (80% of the remaining 75%). That’s the math. Simple, but the details matter more. ### The seed round sets the stage Seed rounds usually sell 10% to 20% of the company. If you sell 15% at seed, you keep 85%. But watch out for the option pool. Investors often ask you to set aside 10% to 15% of the company for future hires before they invest. That pool comes out of your side, not theirs. So a 15% seed sale with a 10% option pool means you’re down to 75% before you even start. Negotiate the pool size. It’s the one number founders overlook because it doesn’t feel like dilution, but it is. ### Series A: the big reset By the time you raise a Series A, the company has more traction, so the round is bigger. Typical Series A sells 20% to 30% of the company. If you’re at 75% after seed, and you sell 25% in the A, you’re at 56.25%. That’s not a failure. That’s the standard path. Your cap table after the A should look roughly like this: - Founders: 50% to 60% combined - Seed investors: 10% to 20% - Series A investors: 20% to 30% - Option pool: 10% to 15% If your numbers fall outside that range, ask why. Maybe you raised too much, or your seed terms were harsh. Either way, you want to catch it before the B round. ### The mistakes that hurt The first mistake is not modeling dilution before you raise. You should know what your ownership looks like after each round before you send a single term sheet. Build a simple spreadsheet. It takes an hour and saves you from surprises. The second mistake is ignoring pro-rata rights. Your existing investors might have the right to buy more shares in future rounds to keep their percentage. That’s fine, but it changes how much new money you can bring in. If your seed investor has pro-rata and wants to use it, the Series A investor gets less. Plan for that. The third mistake is giving away too much too early. A 30% seed round feels necessary when you’re desperate, but it makes the Series A math brutal. You’ll end up with 40% ownership after two rounds, and then you’re working for your investors, not yourself. ### Keep it clean The cap table is a tool. It tells you who has power, who gets paid first, and who decides when you sell. Keep it simple. Don’t issue weird classes of shares. Don’t give board seats to every angel. The more complex the structure, the harder the next round. One more thing: the option pool gets refreshed at each round. That’s normal. But push back on the size. Investors will ask for 15% when you only need 8%. You can negotiate that down, and it’s worth doing because it comes out of your pocket. Dilution isn’t something to fear. It’s the cost of building something bigger than you can fund yourself. Just know the number before you sign.