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Fundraising

Founder Shares

Quick definition

Common stock issued to the founders at formation, usually for nominal consideration; subject to reverse vesting and a §83(b) election.

Founder shares are typically issued at incorporation for fractions of a penny per share. Subject to reverse vesting (the company can buy back unvested shares if a founder leaves) and almost always requires a Section 83(b) election filed within 30 days to lock in tax treatment at the (near-zero) grant date FMV rather than at vesting. Critical: file the §83(b) on time, because missing the 30-day window can cost millions in future taxes.

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Frequently asked questions

What is Founder Shares?
Founder shares are typically issued at incorporation for fractions of a penny per share. Subject to reverse vesting (the company can buy back unvested shares if a founder leaves) and almost always requires a Section 83(b) election filed within 30 days to lock in tax treatment at the (near-zero) grant date FMV rather than at vesting. Critical: file the §83(b) on time, because missing the 30-day window can cost millions in future taxes.
Why is Founder Shares important for startups?
Founder Shares is a fundraising concept that matters for startup founders because it shows up in fundraising readiness, financial decision-making, and operational discipline at the stage where mistakes are expensive to undo. Founders who understand it are better prepared for diligence, board meetings, and investor conversations.
What category does Founder Shares belong to?
Founder Shares is a Fundraising term in the StartupCFO finance glossary, alongside other fundraising concepts that founders, CFOs, and accountants use in startup operations and reporting.
Where can I learn more about Founder Shares?
Beyond this definition, see the related fundraising terms below, or explore StartupCFO's insights and tools that put Founder Shares in context. For specific situations, talk to a fractional CFO who can walk through your numbers.

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