Here's the part of the lockup story a headline number reads wrong. The headline numbers say 59 million SpaceXSPCX-- shares come free today, September 10. Taken at face value, that sounds like the other shoe finally dropping on a name that only IPO'd in June on a thin float. Then you size it against what actually trades.
Those 59 million shares are about 2.7% of the roughly 2.19 billion shares that currently float — the tradable pool as it stands after the earlier releases, itself only about 16% of the shares outstanding. Against the float, today is a rounding error. The real weight of SpaceX's unlock calendar is sitting ahead of us, not behind.
SpaceX didn't do a single lockup cliff. It built a staggered ladder tied to calendar days, earnings windows, and a price trigger — at the IPO roughly 5% of shares floated, and every tranche that opens adds a little more sellable supply to a thin float. The releases have been arriving one after another: 911.5 million on August 6, then 319 million on August 20, then another 319 million on September 9. Today's 59 million is the smallest single rung on that calendar.
The Sept 10 59.1m stake is a marginal rung on a calendar whose real weight sits ahead: the ~1.3b Q3-earnings tranche and Musk's ~6.42b block in June 2027 each dwarf it by more than an order of magnitude.
| Tranche | Shares unlocked (m) |
|---|---|
| 2026-08-06 (Day 180 block) | 911.5 |
| 2026-08-20 (Day 70) | 319 |
| 2026-09-09 (Day 90) | 319 |
| 2026-09-10 (Day 91 Rule 144) | 59.1 |
| 2026-09-24 (Day 105) | 328.4 |
| 2026-10-09 (Day 120) | 328.4 |
| 2026-10-24 (Day 135) | 328.4 |
| 2026 Q3 earnings (~28% of block) | 1300 |
| 2026-12-08 (Day 180) | 797.6 |
| 2027-06-12 (Musk block) | 6420 |
Now look at what's coming. Three more 328-million-share tranches — September 24, October 9, October 24. Then the largest single tranche of 2026: up to ~1.3 billion shares at the Q3 earnings window. Then 797.6 million at the December 8 final expiry of the 180-day block. Stack those forward releases together and you're looking at roughly 3 billion more shares eligible before this calendar year ends — against a float that today is only 2.19 billion. The peak is ahead of, not at, today.
There's a detail in the schedule that tells you what the designers were doing. When you spread five-plus events across 180 days instead of collapsing them into one cliff, no single unlock is decisive; the pressure arrives as a steady drumbeat rather than a single crushing day. Still about 84% of shares sit locked, including the biggest wave of all — Elon Musk's roughly 6.42 billion shares, set to unlock with no early-release provision on June 12, 2027.
One wrinkle keeps the near-term overhang alive. The schedule carried a built-in brake: if the stock had closed at least 30% above its $135 IPO price — above roughly $175.50 — on five of ten trading days into earnings, another 455.8 million bonus shares would have come free early. That trigger never fired. So those shares don't release now; they roll into the December 8 expiry, making that already-large tranche larger.
And before anyone treats today as the de-risking moment it appears to be, remember what these numbers actually describe. Every one of them — today's 59 million included — is an "up to" cap, an eligibility ceiling, not a ticket sold. Realized supply depends on whether the holders actually let shares go; a tranche can open and little can change hands. The schedule tells you what's available, not what's guaranteed to hit the tape.
So read today's unlock the way it deserves: not as the event, but as the countdown to larger ones. Size the overhang against the supply still ahead — the ~3 billion 2026 shares and the 6.42 billion waiting behind Musk in 2027 — and the September release is the small end of the story.
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