Convertible security
Also called: convertible instrument
ELI5
An investment that can change into another kind of security.
Used in conversation
“The convertible security converts at the next qualified financing.”
Definition
A security that can or must convert into another security under stated conditions.
Here “Convertible security” means: A security that can or must convert into another security under stated conditions.
Pitch context
You will see “Convertible security” in fundraising decks, data rooms, term sheets and investor conversations when the discussion reaches funding instruments & exemptions.
Why it matters: In funding instruments & exemptions, a loose definition can change rights, obligations, approval, disclosure or enforceability.
Caution
Meaning, enforceability and required process vary by jurisdiction and agreement; this definition is not legal advice.
Sources & evidence · 5
Direct term-level sources and supporting source families.
- Y Combinator — Safe financing documentsDirect source · practitioner · checked 2026-08-16
- U.S. Securities and Exchange Commission — Small Business Capital Formation GlossaryDirect source · primary · checked 2026-08-16
- National Venture Capital Association — Model Legal DocumentsDirect source · institutional · checked 2026-08-16
- U.S. Securities and Exchange Commission — Exempt OfferingsSupporting source family · primary · checked 2026-08-16
- Y Combinator — Series A Term Sheet TemplateSupporting source family · practitioner · checked 2026-08-16