Interlune

Seattle, WA · Founded 2020 · Privately Held (backing)

Operator of a space resource extraction company intended to harvest lunar materials for energy, computing, medical, and defense applications. Interlune is based in Seattle, WA and was founded in 2020. It was valued at $73.2 million at a grant in Sep 2025, the last priced event on record. It has raised $22.6 million across 7 recorded rounds; the latest was a Series A in May 2026.

PMV mark · valuation
$73.2M
Oct 2026
Priced at
a grant
Sep 2025
Total raised
$22.6M
Last round
Series A
May 2026
What is Interlune worth?
$73.2MPrivateMarketView mark · Oct 2026

Valued at $73.2M at a grant, Sep 2025. Nothing has traded since.

Pro
The prices on Interlune
  • ·Price per share on 2 rounds
  • ·1 investment vehicle formed around Interlune: sponsors, sizes, dates
  • ·Direct lines for 5 people on the team
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Valuation timeline

3 priced rounds · 32 daily marks since · Aug 2022 – Oct 2026
▮▮
Seed Roundrounds hold their value until the next priced eventMark, today
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Interlune funding history

7 rounds
DateRoundRaisedPost-money
May 2026Series A—▮
Jan 2026Series A$5.0M▮
Jan 2026Grant$260K▮
Sep 2025Grant$250K▮
Sep 2025Grant$4.8M▮
Aug 2024Seed Round$15.0M▮
+ 1 earlier rounds · a free account shows the full history
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Interlune valuation

Interlune was valued at $73.2 million at a grant in Sep 2025. That is the last priced event on record: no secondary trade or institutional fund mark has moved the figure since.

How much has Interlune raised?

Interlune has raised $22.6 million across 7 recorded rounds since 2022. The largest was a $5 million Series A in Jan 2026; the most recent was a Series A in May 2026. 3 of the rounds disclosed a post-money valuation.

Interlune has filed 3 Form Ds with the SEC since 2022, most recently in Jan 2026 ($500,000 sold to 6 investors).

Institutional holders and vehicles

In the last 12 months, 1 investment vehicle was formed to buy Interlune shares, reporting $215,000 sold to 10 investors, per SEC Form D filings (most recent Apr 2026).

How Interlune's valuation is determined

Private company valuations aren’t quoted on an exchange — they’re established in moments: a priced funding round sets a post-money valuation, secondary trades print at a price per share, and SEC-registered funds holding the stock report fair-value marks in their N-PORT filings.

For Interlune, the most current credible signal sets the number and the older ones confirm it: a live secondary-market price first, then three or more recent prints, then institutional fund marks, and otherwise the last priced round, which never decays. The valuation is the last round’s post-money moved by the price change since that round, so no share count is assumed. Today it is set by its last priced round. Question about this number? Full methodology →

Frequently asked about Interlune

What is Interlune worth?
Interlune is valued at $73.2M as of Oct 2026. Valued at $73.2M at a grant, Sep 2025. Nothing has traded since.
How much has Interlune raised?
Interlune has raised $22.6M in total funding across 7 recorded rounds.
When did Interlune last raise?
Interlune last raised in May 2026 (Series A).