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SpaceX (SPCX) lockup calendar

Notes

SpaceX (SPCX) lockup calendar

One-line summary: The June 12, 2026 424B4 converts the IPO lock-up to calendar dates and share counts from the prospectus / listing date, in three pools (180-day staggered, extended through Q2 2027 earnings, Musk 366 days with no early release) — eligibility is not the same as observed selling.

The insight

SpaceX did not use a single 180-day cliff. The controlling text is the 424B4 "SHARES ELIGIBLE FOR FUTURE SALE" table plus the Underwriting lock-up: day counts run from the date of this prospectus = June 12, 2026, the filing itself prints calendar dates and up-to share counts, and Musk is carved out of every early-release provision. A pre-listing secondary map (Fool / Darrow) had the 180-day percents roughly right and is not the calendar.

Evidence

Calendar (424B4 primary)

Day-count start = prospectus date June 12, 2026 (listing), not the June 15 close. Share counts are the filing's table, not percents × later float.

180-day pool

DateMechanicUp toStatus as of 2026-08-26
Second full trading day after First Earnings Release Date20%, ex-affiliates911.5 millionEligible Aug 6 if FERD = Aug 4 after-close print. No 8-K confirms selling.
Same date, if performance trigger fires+10% Additional Release, ex-affiliates455.8 millionDid not fire on fetched closes.
August 20, 202670th day, 7%, ex-affiliates319.0 millionDate passed. Volume that session is not a release confirmation.
September 9, 202690th day, 7%, ex-affiliates319.0 millionFuture
September 10, 202691st day, 180-day-pool affiliates59.1 millionFuture
September 24 / October 9 / October 24, 2026105 / 120 / 135th day, 7% each328.4 million eachFuture
Second full trading day after Q3 2026 results28%1.3 billionEarnings-tied; not yet a calendar day
December 8, 2026180th day remainder328.4 million if Additional Release fired; else 797.6 millionFuture; remainder is the no-trigger case

Extended pool (certain shareholders, other than Musk)

DateMechanicUp to
Second full trading day after Q4 2026 results20%351.9 million
March 18, 2027280th day, 10%176.0 million
Second full trading day after Q1 2027 results20%351.9 million
May 17, 2027340th day, 10%176.0 million
June 12, 2027366th day, 20%351.9 million
Second full trading day after Q2 2027 resultsremainder351.9 million

Musk

DateMechanicUp to
June 12, 2027366 days after prospectus date; no early release6.4 billion (incl. Class B conversion + 350 million Class B options)

Goldman Sachs may release any locked securities at any time (424B4).

September 2026 NDX demand pulse (supply context only)

Do not re-file the Sep 9–10 table. Do not duplicate the day-105 Sep 24 (~328.4M) row already on this calendar. The 2026-09-09 clip treats those rows as already-vaulted eligibility and uses later 180-day-pool steps plus the Q3 earnings-tied 28% / up to 1.3B only as supply overhang context against a separate mechanical Nasdaq-100 demand window. The 2026-09-14 refresh updates that demand path to Bloomberg-syndicated Nasdaq GIW daily pro forma ~1.28%→~2.82% (indicative; final later this month; no primary $ figure) while Sep 21 effective stays methodology-mapped / GIW-timing-consistent, not IR-confirmed. Street “mid-November” for Q3 is secondary color, not a 424B4 date. Eligibility ≠ selling. Not a buy/sell. From 2026-09-09-research-spcx-n100-rebalance-sep-2026 and 2026-09-14-research-spcx-ndx-rebalance-sep12-refresh.

Contradictions / tensions

  • Secondary map vs 424B4. Pre-listing Fool/Darrow (2026-06-01-spacex-ipo-lockup-schedule) matched Pool A percents and missed the extended pool, share counts, the 91st-day affiliate row, and prospectus-date calendar math. Their "certain significant investors" 366-day phrase is secondary; 424B4 splits Musk (366 days, no early release) from "certain shareholders" (extended pool through Q2 2027 earnings). Record, do not flatten.
  • Aug 6 tape vs 70-day. The Aug 7 clip's first-expiry date 2026-08-06 plus 911.5 million matches the earnings-tied 20%, not the 70-day (Aug 20 / 319.0 million). Do not invent that Aug 6 "was the 70-day tranche."
  • Japan FWP dated some clocks off the document / "Pricing Date." 424B4 supersedes.
  • Eligibility ≠ selling. No fetched 8-K says a tranche was sold. The Aug 4 S-8 reoffer (136,949,657 shares) is still "subject to any lock-up."

Open questions

  • How many of the Aug 6–eligible 911.5 million (and Aug 20–eligible 319.0 million) actually traded? Form 144 / 10b5-1 prints were not fetched as a sale tape.
  • Does any later amendment move day counts from listing (June 12) to close (June 15)? None fetched.
  • What calendar day is the Q3 28% / 1.3 billion row? Still earnings-tied. Street “mid-November” from Briefs/HTX is secondary timing color, not a 424B4 or Nasdaq date. From 2026-09-09-research-spcx-n100-rebalance-sep-2026.
  • spacex-ipo-post-listing-entry-timing is a separate question and was not opened, edited, or closed from this source.

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