Tell investors as soon as the decision is final, before the news reaches them another way. Say what happened in plain terms, show the plan for the gap the departure leaves, and explain what it means for equity and the cap table. A bad surprise costs you more than a hard update.
Why does timing matter so much?
Because investors almost always hear about it before you plan to tell them. One founder who went through this says the direct move worked best: being fully upfront with investors right away and telling them you are already working on a fix is what keeps the relationship intact, according to a founder's own account of a co-founder's exit. A delay reads as hiding something, even when you were just giving the departing founder time to tell their own story first.
Call the lead investor directly. Do not email the whole cap table at once and do not let the board hear it in a scheduled update meeting meant for something else.
What do you actually say?
Lead with the plan, not the history. Investors can handle a founder leaving. What worries them is a founder who cannot say what happens to the roadmap next week. Cover, in this order:
- What changed. One sentence on the decision, no character judgment attached.
- Who owns what now. Name who is picking up each piece of the departing founder's work.
- What it costs the business. Be honest about any slip in the roadmap or hiring plan.
- What it means for equity. Investors will ask about the cap table before anything else once the plan is clear.
Startup advisory firm Kruze Consulting makes the same point about sequencing: tell your team after the board and lead investors already know, so nobody outside the company hears it from someone inside it, per its guide to handling a cofounder's departure. Keep the message neutral about the departing founder throughout. Investors read a founder who badmouths their own cofounder as a founder they cannot fully trust either.
What happens to their equity?
This is the second question after "what's the plan," so have the answer ready before the first call. Check three things in your documents before you speak to anyone:
| Question | Where to look |
|---|---|
| Is their stock fully vested? | Vesting schedule in the stock purchase agreement |
| Does the company have a buy-back right on vested shares? | Shareholders' agreement or founders' agreement |
| Do the investment documents add their own leaver terms? | The term sheet and side letters from the last round |
Unvested shares are usually forfeited and returned to the option pool. Vested shares normally stay with the departing founder, which is where "dead equity" comes from: a large stake tied to someone no longer doing the work. If your agreement does not give the company a repurchase right, a buyback has to be negotiated, not assumed. For the mechanics of a fair split, see what happens to equity when a cofounder leaves and good leaver and bad leaver clauses.
How do you keep the round or the next one on track?
Ask directly whether this changes anything for a round in progress. Most investors will not walk over a departure handled well; they will walk over one that suggests the team cannot handle hard news cleanly. If the departure followed a disagreement that was never really resolved, not just a change of heart, treat that as the real problem to fix, not the paperwork around it. A Conflict Session gives two people a structured way to settle what actually happened and what either of you commits to next, before it becomes the story investors hear secondhand. For the broader picture of resolving a cofounder breakdown before it reaches this point, start with our cofounder conflict resolution guide.
Frequently asked questions
- Do I have to tell investors a cofounder is quitting?
- Yes, and fast. Most term sheets give investors information rights, and a board member usually hears informally before you say anything. If they learn about a departure from someone else first, every update you send after that gets read with more suspicion, which costs you more than the hard conversation would have.
- What do investors want to hear first?
- That you already have a plan. Investors can sit with a founder leaving; they struggle with a founder who has no answer for what happens next. Lead with who is picking up the departing founder's work, by when, and what it means for the next few months, before you get into the backstory.
- Should I explain why the cofounder is leaving?
- Give the real reason in plain terms, without turning it into a character judgment. Investors have heard every version of this before. A short, honest account of the disagreement that could not close lands better than a vague line that makes them fill in the worst case.
- What happens to a departing cofounder's equity?
- It depends on your vesting schedule and shareholders' agreement. Unvested shares are usually forfeited back to the company. Vested shares normally stay with the departing founder unless your documents give the company a repurchase right, so check that clause before you promise investors an outcome.