What is Lightmatter worth?
$4.6Bimplied by the PA Mark · Sep 2026
Lightmatter last raised an undisclosed amount in its Later Stage VC (Series D) (Dec 2025).
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- ·Post-money valuations for all 11 rounds
- ·The complete investor list — 42 names
- ·Watchlist + deal alerts for Lightmatter
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Valuation timeline
7 marks · Dec 2017 – Sep 2026▮▮
Early Stage VC (Series A)5 roundsPA Mark
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Funding history
11 rounds| Date | Round | Raised | Post-money | $/share |
|---|---|---|---|---|
| Dec 2025 | Later Stage VC (Series D) | — | ▮ | ▮ |
| Jan 2025 | Secondary Transaction - Private | — | ▮ | ▮ |
| Oct 2024 | Later Stage VC (Series D) | $400.0M | ▮ | ▮ |
| Dec 2023 | Later Stage VC (Series C2) | $155.0M | ▮ | ▮ |
| Mar 2023 | Later Stage VC (Series C1) | $153.3M | ▮ | ▮ |
| Apr 2021 | Early Stage VC (Series B) | $80.0M | ▮ | ▮ |
| + 5 earlier rounds · a free account shows the full history | ||||
How Lightmatter'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 Lightmatter, we compose those signals into the PA Mark — a weighted composite of 7 recent pricing inputs, decayed by age and reset on new rounds. The implied valuation multiplies the mark by shares outstanding. Full methodology →
Frequently asked
- What is Lightmatter worth?
- Lightmatter's implied valuation is $4.6B, based on the PA Mark composite price of about $82 per share as of Sep 2026.
- How much has Lightmatter raised?
- Lightmatter has raised $822.5M in total funding across 11 recorded rounds.
- When did Lightmatter last raise?
- Lightmatter last raised in Dec 2025 (Later Stage VC (Series D)).