The SpaceX Lockup Isn't a Date. It's a Staircase.

Ask most investors when the SpaceX lockup expires and you'll get one date. Ask the amended prospectus and you get a schedule — nine steps, two of them keyed to earnings rather than to a date, running to a final expiry on Dec. 8, 2026. The single date on your calendar is the least useful fact about this deal.

What Actually Happened Thursday

Up to 911.5 million shares became eligible to trade, according to the company's amended prospectus. That one tranche is more than 140% of the stock that was available to trade after the IPO itself — the float did not grow by a slice, it more than doubled in a single step.

For context from our own record: SpaceX priced at $135.00 and first printed at $152.65 on June 12, 2026. The stock changed hands at $114.92 in Thursday's session, after trading as low as $105.11 earlier in the day, per market reporting on the session.

The Staircase

A conventional lockup is one cliff: 180 days, then everybody is free. SpaceX did not write one. It wrote a series of steps keyed to the date of the amended prospectus, and each step releases a different population of holders.

An earlier version of this post described the schedule in five steps, following the session reporting it was written from. The filed schedule has nine. The list below is now the filed one, read from accession 0001628280-26-042639, and it is the same schedule the SpaceX dossier renders. Two steps carry conditions rather than dates, because that is how the filing writes them.

Up to 911.5 million shares, on the second full trading day after the first earnings release. Session reporting put the first release at Aug. 6, 2026.

A further 10%, on the same date as Step 1 and only if the closing price clears a stated threshold above the offer price.

7% of locked shares.

7% of locked shares.

7% of locked shares.

7% of locked shares.

7% of locked shares.

28% — about 1.3 billion shares — on the second full trading day after the following quarter's results.

Final expiry. All remaining locked shares may be transferred.

Schedule read from SpaceX's amended S-1, accession 0001628280-26-042639. Percentages and share counts are the filing's own. Dates attributed to session reporting are marked as such and are not filed dates.

Why One Date Is the Wrong Model

The reason the staircase matters is that the market does not react to the lockup — it reacts to theanticipation of each step, and then to what actually clears. Thursday demonstrated both. The largest single unlock in the deal's short history landed, and the stock moved up on the day, apparently on short covering rather than on the wave of supply everyone was braced for. A calendar entry that reads "lockup expires" tells you none of that.

It also mis-states the risk. Investors who treat expiry as one event assume the overhang clears in one afternoon. On this schedule the overhang is a drip that runs into next summer — and the single biggest step, Musk's stake, sits eleven months past the date most calendars display.

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How We Track It

Our lockup surface is built on the filing, not on a rule of thumb. That distinction is the whole product: a 180-day default is an assumption, and an assumption dressed as a date is how people get surprised. When a prospectus lays out tranches, the tranches are what we carry — each one attributed to the document and the accession number it came from, visible on the record.

Our SPCX row carried a 90-day lockup date of September 9, 2026. That date is real, but it is one 7% step in the schedule above, not the end of the lockup — the 180-day lockup runs to December 8, 2026. The row now carries the full nine-step schedule, each step attributed to accession 0001628280-26-042639, and the change is recorded as a dated entry on the corrections ledger, with the document that settles it.

We would rather show you the seam than pretend there wasn't one.

What to Do With This

Three practical takeaways, none of which require a view on where the stock goes:

1. Read the prospectus for the schedule, not the summary for the date. If a deal has staged releases, the summary line will still say "lockup expires" and give you one of them.

2. Size the step, not just the day. A tranche worth 140% of the existing float is a different event from one worth 5%, even though both appear on a calendar as a single row.

3. Watch who is unlocking. Early investors with a decade of carried gains behave differently from employees with recent grants, and both behave differently from a founder who has said he is unlikely to sell.

The IPO does not end at the open. It ends when the last insider is free to leave — and for SpaceX, that is a nine-step staircase running to Dec. 8, 2026.

Written by

Isam Fathi

Founder & CEO, Bellipo

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