IPO Lock-Up Expiration Alerts
Track the end of the lock-up, the insider selling window, and the filings that signal supply.
By AyeWatch Team3 min read
Short answer: An IPO lock-up expiration alert tells you when the pre-IPO shareholders can first sell, usually 90 to 180 days after the offering. Track the date from the prospectus, watch the SEC filings for early release or secondary offerings, and put the date in your calendar.
AyeWatch is an AI monitor for public pages and topics. It watches SEC filing pages and company investor pages and sends an alert when a new filing appears.
Find the date
The lock-up terms are in the prospectus or the final 424B filing. The date is usually 90, 180, or 360 days after the IPO, subject to early release. Read the actual clause, because the market convention is not the contract.
Some deals have staggered lock-ups for different holders.
Watch the filings
An early release or a secondary offering appears in an 8-K, a 424B, or a prospectus supplement. Watch the company's EDGAR filing page and its investor relations page. A new filing can move the date or add supply before it.
Set the alert on the filing page, not on a news summary.
What the expiration means
It adds potential supply, not guaranteed selling. Insiders may hold, sell in a planned program, or use a 10b5-1 plan. The expiration is a known event, so some of the effect may already be priced.
Watch the volume and the filings, not just the date.
Set the alert
Add the lock-up date to your calendar with a two-week reminder. Watch the EDGAR page and the IR page. Add a topic watch for the ticker plus "lock-up" or "secondary offering".
AyeWatch checks hourly on Pro and in ASAP mode on Pro+.
Cost
AyeWatch Pro is $9/mo with 50 topics and hourly checks; Pro+ is $19/mo with 200 topics and ASAP mode. Every plan starts with a 7-day free trial.
The IPO filing alerts guide covers the filing workflow.
| Signal | Source | What it means |
|---|---|---|
| Lock-up date | Prospectus | Potential supply |
| Early release | 8-K or 424B | Supply sooner |
| Secondary offering | 424B | New shares |
| Insider Form 4 | EDGAR | Actual selling |
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Try it free for 7 daysThe bottom line
Find the clause, not the convention. Put the date in your calendar. Watch the filings for an early release or a secondary. The date is the start of the question, not the answer.
FAQ
When does an IPO lock-up expire?
Usually 90 to 180 days after the offering, sometimes 360. Read the prospectus for the exact clause.
Does the stock always fall at expiration?
No. It adds potential supply. Some of the effect may already be priced, and insiders may not sell.
Can a lock-up end early?
Yes, through an early release or a secondary offering. Watch the SEC filings.
How much does it cost?
AyeWatch starts at $9/mo after a 7-day trial. Pro includes 50 topics and hourly checks.