Can lockups be extended?

Yes, if underwriters and issuer agree. Common during volatile market conditions or when insiders want to signal confidence. Rare and requires majority insider consent.

What if we're acquired during lockup?

Acquisitions typically trigger lockup release (specified in lockup agreement). All insider shares become tradeable per the acquisition terms. Note: this differs from voluntary lockup waiver, which is rarer.

Are lockup periods the same for direct listings?

No — direct listings often have shorter or no formal lockups because the mechanism doesn't rely on primary issuance. But insiders may face 10b-5 restrictions and blackout periods regardless.

IPO Lockup Period: Standard 180 Days, Early Release

The IPO lockup restricts insider selling for 180 days post-IPO. Here's how it works, when early release happens, and how founders should plan around it.

Lockup Period: What Founders and Employees Need to Know

The lockup period is the interval after an IPO during which insiders (founders, employees, pre-IPO investors) cannot sell shares. Standard: 180 days. During lockup, insider shares are illiquid regardless of market price. Understanding lockup mechanics is essential for personal financial planning around IPO.

Standard structure

Duration: 180 days from IPO pricing (occasionally 90 or 365 days). Coverage: all insider shareholders (founders, employees, pre-IPO investors, board members). Exceptions: shares sold in the IPO itself, shares transferred to family/estate planning entities, small percentage carve-outs for specific hardship situations.

Early release provisions

Some lockups include early release triggers: stock trades above the IPO price by a specified percentage (e.g., 33%) for 10 consecutive days, or a specified fraction of the lockup elapses (typically 90 days). When triggered, a partial release (25-33% of insider shares) becomes tradeable earlier. Underwriters can also waive lockup case-by-case.

Founder planning strategy

Assess personal liquidity needs pre-IPO: mortgage, taxes on RSU vesting, diversification desires. Consider 10b5-1 plans immediately post-lockup for systematic selling. Coordinate with tax counsel: QSBS timing matters, RSU vesting creates tax liability regardless of ability to sell. Never assume lockup will be waived — plan for the full 180 days.

The post-lockup selling window

Post-lockup insider selling typically pressures the stock price for 10-30 days ("lockup expiration overhang"). Founders who want to sell significant volumes often use structured programs (10b5-1 plans, marketed block trades) to minimize market impact and legal exposure. Coordinate with underwriters and legal counsel.

Frequently asked questions

Can lockups be extended?: Yes, if underwriters and issuer agree. Common during volatile market conditions or when insiders want to signal confidence. Rare and requires majority insider consent.
What if we're acquired during lockup?: Acquisitions typically trigger lockup release (specified in lockup agreement). All insider shares become tradeable per the acquisition terms. Note: this differs from voluntary lockup waiver, which is rarer.
Are lockup periods the same for direct listings?: No — direct listings often have shorter or no formal lockups because the mechanism doesn't rely on primary issuance. But insiders may face 10b-5 restrictions and blackout periods regardless.