---
title: "Space Stock Lock-Up Expiration Dates: Next Unlock and Past Moves | Orbit Alpha"
description: "When insiders in SpaceX, HawkEye 360, York Space Systems, Firefly and Karman could first sell after their IPOs, the next lock-up expiry and how each stock moved that day."
url: https://www.orbitalpha.cloud/space-stocks/lockup-expirations
updated: 2026-11-05
---

# Space stock lock-up expiration dates
Updated 5 Nov 2026 from live prices and SEC filings
The next space stock lock-up expiry is SpaceX's main lock-up on 8 Dec 2026, releasing up to about 798 million shares, the remaining 17%. Earlier space IPO lock-ups ended for HawkEye 360 (2 Sept 2026), York Space Systems (28 Jul 2026), Firefly Aerospace (3 Feb 2026) and Karman Space & Defense (12 Aug 2025).

When insiders and pre-IPO investors in each recently listed space company could first sell, and how the shares moved that day. SpaceX releases its shares in stages, tracked day by day on the [SpaceX lockup calendar](https://www.orbitalpha.cloud/spacex-stock/lockup-calendar).

## When do space stock lock-ups expire?

| Company | IPO | Lock-up end | Status | Move that day |
|---|
| [SpaceX](https://www.orbitalpha.cloud/stocks/spcx) (SPCX) | 12 Jun 2026 | 8 Dec 2026, main lock-up ([staged releases before it](https://www.orbitalpha.cloud/spacex-stock/lockup-calendar)) | Upcoming | Not yet |
| [HawkEye 360](https://www.orbitalpha.cloud/stocks/hawk) (HAWK) | 7 May 2026 | 2 Sept 2026 (released early) | Ended | -3.9% |
| [York Space Systems](https://www.orbitalpha.cloud/stocks/yss) (YSS) | 29 Jan 2026 | 28 Jul 2026 | Ended | -5.6% |
| [Firefly Aerospace](https://www.orbitalpha.cloud/stocks/fly) (FLY) | 7 Aug 2025 | 3 Feb 2026 | Ended | +9.6% |
| [Karman Space & Defense](https://www.orbitalpha.cloud/stocks/krmn) (KRMN) | 13 Feb 2025 | 12 Aug 2025 | Ended | - |

"Move that day" is the share price change on the lock-up end date, from the previous close.

## Notes on each lock-up

- [SpaceX](https://www.orbitalpha.cloud/stocks/spcx): shares are released in stages after quarterly results and on set days, with the main lock-up ending 8 Dec 2026. Elon Musk's own lock-up runs for 366 days.
- [HawkEye 360](https://www.orbitalpha.cloud/stocks/hawk): Released early. The 180-day lock-up would have ended in a quarterly blackout period, so under its terms all locked-up shares became free to sell from 2 September. Some IPO calendars still show 3 November.
- [York Space Systems](https://www.orbitalpha.cloud/stocks/yss): Standard 180-day lock-up for insiders and pre-IPO shareholders.
- [Firefly Aerospace](https://www.orbitalpha.cloud/stocks/fly): About 125.9 million shares could become eligible for sale, according to the prospectus. Shares issued in an acquisition stayed restricted until 7 February.
- [Karman Space & Defense](https://www.orbitalpha.cloud/stocks/krmn): Standard 180-day lock-up. The IPO included 14.6 million shares sold by existing holders.

Voyager Technologies (VOYG), which listed in June 2025, is left out because its lock-up end date could not be confirmed from a public source.

## Frequently asked questions

### What is a lock-up expiration?
When a company goes public, its insiders and pre-IPO investors agree not to sell their shares for a set period, usually 180 days. When that lock-up ends, those shares can be sold for the first time, which can add a large supply of stock to the market.

### When is the next space stock lock-up expiration?
SpaceX's main lock-up ends on 8 Dec 2026, releasing up to about 798 million shares, the remaining 17%. Several smaller SpaceX releases come before it; every date is on the SpaceX lockup calendar.

### When did the HawkEye 360 lock-up expire?
All locked-up HawkEye 360 shares became free to sell from 2 September 2026, ahead of the standard 180 days, because the original date fell in a quarterly blackout period. Some IPO calendars still list 3 November.

### Do space stocks fall when a lock-up ends?
Not always. The table shows how each stock moved on the day its lock-up ended: HawkEye 360 -3.9%, York Space Systems -5.6% and Firefly Aerospace +9.6%. Much of the selling can be priced in beforehand, and holders do not have to sell.

## Sources
- [HawkEye 360 confirms early lock-up release for 2 September](https://finviz.com/news/386800/hawkeye-360-confirms-early-lock-up-release-for-september-2nd-announces-preliminary-inclusion-in-the-russell-2000-index)
- [MarketBeat: York Space Systems lock-up period to end on 28 July](https://www.marketbeat.com/instant-alerts/york-space-systems-incs-lock-up-period-to-end-on-july-28th-nyseyss-2026-07-21/)
- [TS2: Firefly lock-up ends 3 February](https://ts2.tech/en/firefly-aerospace-stock-slides-10-as-fly-lock-up-deadline-hits-tuesday/)
- [Karman lock-up period ends 12 August](https://finder.techleap.nl/news/feed/karman-holdings-506m-lock-up-ends)

Lock-up terms from company filings and releases; share moves from Yahoo Finance daily closes. Figures as of 5 Nov 2026, refreshed whenever the site updates. Orbit Alpha is information, not investment advice.