IPO & Lockup Expiration Calendar

90-day forward calendar of IPO lockup expirations, upcoming IPOs, and secondary offerings. When large insider unlocks coincide with a big post-IPO gain, insiders face maximum incentive to distribute — a classic short-side event risk. Lockup expiry mean 1d return: −1.8% ±2.4% (Bradley & Jordan 2001).

Short Candidates

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Large unlock + big gain

Monitor

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Watch for distribution

Upcoming IPOs

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Pricing within window

Lockup Expiries

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Insider unlock events

Shares Unlocked

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Total millions (90d)

Last Refresh

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90-Day Timeline

Short Candidate Monitor IPO Secondary Neutral Lockup

Short Opportunity Screener 0

Filtered list of SHORT_CANDIDATE lockup expirations — events where large shares unlock with the stock significantly above its IPO price. Insider distribution pressure is highest in this cohort.

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All Upcoming Events

Type

Signal

Days out ≤

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Date	Ticker	Event	Days Out	Shares Unlocked	% Float	IPO Price	Current	Return	Insider %	Risk Score	Signal
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Understanding Lockup Expiry Event Risk

Lockup expirations with large shares + big gains = watch for insider distribution. When a company IPOs, insiders (founders, VCs, employees) are typically restricted from selling for 90–180 days. At expiry, the legal restriction lifts — but not all insiders sell. The key driver is incentive: insiders sitting on large paper gains are far more likely to distribute than those underwater or marginally in the money.

The Event Risk Score is a composite of shares unlocked (in millions) and the percentage return since IPO. High score = high distribution pressure. The SHORT_CANDIDATE signal fires when shares unlocked exceed 20M and the stock is more than 30% above its IPO price — conditions associated with mean 1d returns of −3.9% in the Field-Hanka (2001) top-quintile cohort.

Caveats: Not all lockup expirations trigger selling. Secondary lockup periods, 10b5-1 plans already in motion, and continued insider confidence can mute the effect. Use this calendar as an event-risk monitor, not a standalone signal.