Early Lockup Release: Triggers and Waivers

An early lockup release is any unlock of restricted IPO shares that happens before the date printed in the prospectus. The 180 days most filings describe is a ceiling, not a fixed term. Two mechanisms shorten it: a condition written into the underwriting agreement that frees shares once a price and time test is met, and a discretionary waiver from the lead underwriters, which needs no condition at all.

What is an early lockup release?

A lockup is a private contract, not a securities rule. Insiders, employees, pre-IPO funds and selling shareholders sign a lockup agreement with the underwriting banks, promising not to sell, pledge, hedge or otherwise transfer their shares for a stated period after the offering. The standard IPO lockup runs 180 days from the pricing date, and the date itself comes straight out of the prospectus.

The parties who signed that contract can also change it. Nothing in the federal securities rules fixes the 180 days, and nothing stops the banks from ending the restriction sooner. A calendar date derived from a prospectus is the longest the restriction can run, and treating it as a scheduled event overstates what the document promises.

How much stock the restriction holds back depends on how little of the company was sold in the first place. The panel below buckets US listings since January 2022 by the share of recorded shares outstanding that the offering itself placed.

SELECT
    multiIf(pct <  5, 'under 5%',
            pct < 10, '5% to 10%',
            pct < 15, '10% to 15%',
            pct < 20, '15% to 20%',
            pct < 30, '20% to 30%',
                      '30% or more') AS share_sold,
    count()                          AS ipos
FROM
(
    SELECT
        ticker,
        round(100 * max(toFloat64(max_shares_offered)) / max(toFloat64(shares_outstanding)), 2) AS pct
    FROM global_markets.stocks_ipos
    WHERE listing_date >= '2022-01-01'
      AND listing_date <= today()
      AND ticker NOT IN ('SPCX')
      AND shares_outstanding > 0
      AND max_shares_offered > 0
    GROUP BY ticker
    HAVING pct > 0 AND pct <= 100
)
GROUP BY share_sold
ORDER BY min(pct)

Sorted from the smallest offerings up, the first bucket holds listings that sold under 5% of shares outstanding, 39 of them. Everything unsold sits behind the lockup. That overhang is the supply an early release moves into public hands ahead of schedule, which is why the release date matters to anyone tracking the tradable float.

The price condition written into the underwriting agreement

Since roughly 2019 a large share of US underwriting agreements have carried an early release provision, and the drafting is templated. A typical version stacks four elements.

1. A time floor: a minimum number of days elapsed since the offering, often 90 or 120.
2. An earnings condition: the company has publicly reported results for the quarter in which the IPO fell.
3. A price test: the closing price sits at or above a premium to the IPO price, commonly 133 percent, on 10 of the 15 trading days ending on the measurement date.
4. A settlement lag and a size cap: the release takes effect a set number of trading days after the conditions are met, and covers only a stated slice of the locked shares, often 25 percent.

The numbers move from deal to deal. The shape rarely does. Note what the price test measures: closing prices across multiple days inside a defined window, never a single intraday print. Most versions also suspend the test during the blackout period around an earnings release. Japan's price condition releases follow the same logic, with thresholds set by local market practice.

A condition of this kind is disclosed in advance. It sits in the prospectus, it applies to every holder who signed the same form of agreement, and a reader can follow the price test day by day.

Waivers: the lead underwriters decide

The lockup agreement names the representatives of the underwriters, in practice the lead bookrunners, as the parties who may consent to an early transfer. That consent is discretionary. There is no price test and no obligation to treat holders alike. A waiver can cover a single holder or the entire book, and it can arrive at any point in the term.

One rule cuts through the silence. FINRA Rule 5131 requires the book running lead manager to notify the issuer and to announce an impending release or waiver of a lockup restriction through a major news service at least two business days before it takes effect, with narrow exceptions for transfers made without consideration or to immediate family. The rule sits in the section governing the lockups that officers and directors sign. That notice is why some early releases reach the market as a dated press release ahead of any filing.

Lockup language itself turns up in Form 8-K disclosures on a steady cadence.

SELECT
    toString(toStartOfMonth(filing_date))                AS month,
    formatDateTime(toStartOfMonth(filing_date), '%b %Y') AS month_label,
    countDistinct(accession_number)                      AS filings,
    countDistinct(cik)                                   AS companies
FROM global_markets.stocks_8k_disclosures
WHERE filing_date >= '2023-01-01'
  AND filing_date <  toStartOfMonth(today())
  AND (supporting_text ILIKE '%lock-up%' OR supporting_text ILIKE '%lockup%')
GROUP BY month, month_label
ORDER BY month

Across 17 months from January 2023, the line above tracks how regularly a lockup is mentioned in 8-K disclosure text. In Jul 2026, the most recent full month in the series, 2 companies filed 2 of them. Those filings cover new lockups, amendments, expirations and waivers alike, so read the series as a measure of activity rather than a count of early releases.

Staged and tiered releases

Many lockups release in stages rather than at a single cliff, the one date on which everything unlocks at once. Four structures show up repeatedly.

• Percentage tranches: a fixed slice frees on the early condition, the balance on the stated end date.
• Role tranches: rank and file employees come off restriction ahead of executives and directors.
• Event tranches: a release keyed to the first or the second earnings report after listing.
• Carve-outs: gifts, transfers to affiliates, adoption of a 10b5-1 plan or shares sold into a follow-on offering, each permitted while the general restriction stands.

A staged structure changes what an expiration date means. Part of the locked stock can reach the market months ahead of the headline date, and the headline date then covers a smaller remainder than the total share count suggests. Our note on what happens to a stock after a lockup expires looks at price behaviour around those dates.

What an S-1 or 424B4 tells you

The lockup lives in two places in the offering documents. The Underwriting section of the registration statement (Form S-1, or Form F-1 for a foreign private issuer) and of the final prospectus (Form 424B4) describes the term, the holders covered, the permitted transfers and any early release condition in plain prose. The form of lockup agreement is filed as an exhibit to the underwriting agreement, and that exhibit carries the operative wording.

Registration statements are amended repeatedly before an offering prices, and lockup terms can move between versions.

SELECT
    form_type,
    countDistinct(accession_number) AS filings,
    countDistinct(cik)              AS companies
FROM global_markets.stocks_sec_edgar_index
WHERE filing_date >= '2022-01-01'
  AND form_type IN ('S-1', 'S-1/A', 'F-1', 'F-1/A', '424B4', '424B1', '424B3')
GROUP BY form_type
ORDER BY filings DESC

Since January 2022 the most filed of these forms is 424B3, at 36194 filings from 4366 distinct filers. A registration statement is rarely filed once and left alone. The version that governs is the last one before pricing, and the final prospectus is where that text lands.

What the documents give a reader: the maximum term, the early release condition where one exists, the identity of the parties whose consent is required, and the list of permitted transfers. What they cannot give: whether those parties will consent, for whom, or when. A waiver is a future decision by a private party, disclosed if and when it is made.

How to spot an early release

An early release is observable after the fact through four surfaces.

1. A Form 8-K, usually under Item 8.01, Other Events, describing a waiver or the satisfaction of a release condition. There is no dedicated 8-K item for lockups.
2. A press release from the lead underwriter or the company, which the FINRA notice requirement pushes into public view two business days ahead.
3. A change in reported public float or shares available for trading, which moves as a tranche frees.
4. Insider sales on Form 4 dated before the calendar expiration, which cannot occur while the restriction binds.

The 8-K route leaves the cleanest trail. The panel below takes US listings since 2021, finds the first 8-K disclosure for each company whose text mentions a lockup, and buckets it by how many days after the listing date it arrived.

WITH
    listings AS
    (
        SELECT
            ticker,
            min(listing_date) AS listed
        FROM global_markets.stocks_ipos
        WHERE listing_date >= '2021-01-01'
          AND listing_date <= today()
          AND ticker != ''
          AND ticker NOT IN ('SPCX')
        GROUP BY ticker
    ),
    lockup_filings AS
    (
        SELECT
            arrayJoin(tickers) AS ticker,
            min(filing_date)   AS first_filing
        FROM global_markets.stocks_8k_disclosures
        WHERE filing_date >= '2021-01-01'
          AND (supporting_text ILIKE '%lock-up%' OR supporting_text ILIKE '%lockup%')
        GROUP BY ticker
    )
SELECT
    multiIf(days_after <  90, 'day 0 to 89',
            days_after < 135, 'day 90 to 134',
            days_after < 180, 'day 135 to 179',
            days_after < 210, 'day 180 to 209',
                              'day 210 or later') AS days_after_listing,
    count()                                       AS companies
FROM
(
    SELECT dateDiff('day', l.listed, k.first_filing) AS days_after
    FROM listings AS l
    INNER JOIN lockup_filings AS k ON k.ticker = l.ticker
    WHERE k.first_filing >= l.listed
)
GROUP BY days_after_listing
ORDER BY min(days_after)

The first three buckets close before day 180. 3 companies had their first lockup 8-K in the day 0 to 89 bucket, and 4 in the day 210 or later bucket. Filings inside the first 180 days are not all early releases. Some announce a fresh lockup attached to a follow-on offering, others amend an existing one. What the distribution does show is that lockup activity in the filing record is not confined to the six month mark, which is the practical point for anyone counting days off a prospectus.

FAQ

Can an IPO lockup end before 180 days?

Yes. A lockup is a contract with the underwriting banks, and it can end early either through a price and time condition written into the underwriting agreement or through a discretionary waiver from the lead bookrunners. The date in the prospectus is the maximum term.

Do underwriters have to announce a lockup waiver?

FINRA Rule 5131 requires the book running lead manager to notify the issuer and to announce an impending release or waiver through a major news service at least two business days before it takes effect, with narrow exceptions such as transfers to immediate family. That announcement is often the first public word of an early release.

What is a 133 percent price condition in a lockup?

It is a common early release condition. The closing price must sit at or above 133 percent of the IPO price on 10 of the 15 trading days ending on the measurement date, alongside a minimum elapsed time and a published quarterly report. Meeting it frees a stated slice of the locked shares, often a quarter of them.

Where in an IPO prospectus is the lockup described?

In the Underwriting section of the S-1 or the 424B4, and in the form of lockup agreement filed as an exhibit to the underwriting agreement. The prospectus prose gives the term and the conditions; the exhibit gives the operative wording.

Does an early release free every shareholder at once?

Not always. Staged structures release a percentage of the shares, or one class of holders such as employees, ahead of everyone else. A discretionary waiver can be narrower still and cover a single holder.

Every panel here ships with the SQL that produced it. Open one to read the query. To trace the filings around a specific listing, ask the question in plain English on the Strasmore terminal.