Corporate actions
Lock-up period
A window after an IPO during which insiders are barred from selling their shares.
How it works
Lock-ups typically run for 90 to 180 days. They prevent an immediate flood of insider selling into a new market.
Expiry is a known date on which a large volume of shares becomes sellable, and prices frequently weaken around it.
Related terms
- IPOA private company selling shares to the public and listing on an exchange for the first time.
- Free floatThe portion of a company’s shares that is actually available to trade in the market.
- Insider dealing and disclosureTrading by company insiders, which is legal when disclosed and illegal when based on private information.
More in Corporate actions
- Merger and acquisition
- Payment date
- Guidance
- Payout ratio
- Ex-dividend date
- Proxy vote
- Earnings surprise
- Record date
All 26 Corporate actions terms · The full glossary, 433 terms
Educational reference only. Nothing here is investment advice or a recommendation to buy or sell anything, and tax treatment depends on your own circumstances and the country you are in.