Up 5% since its Series D, Oct 2024 ($4.5B post-money). The secondary market quotes about $84 per share.
- ·Every dated print: 11 trades with prices and structures
- ·126 fund marks: filer, period, implied $/share
- ·The monthly marks chart, 46 months in dollars
- ·Price per share on 1 round
Membership and data by Private Market View
Valuation timeline
6 priced rounds · 32 daily marks since · Dec 2017 – Oct 2026Membership and data by Private Market View
Secondary market
monthly marks · 46 months · Jan 2023 – Oct 2026Membership and data by Private Market View
Lightmatter 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 | ||||
Membership and data by Private Market View
Lightmatter valuation
Lightmatter is valued at approximately $4.7 billion as of Oct 2026. The figure is set by secondary market price and confirmed by prints and round price. The secondary market quotes about $84 per share. The reference point is its Series D in Oct 2024, at a $4.5 billion post-money valuation; the current figure is up 5% since.
Lightmatter ranks 36th by valuation and 48th by capital raised among the private companies PrivateMarketView tracks.
Recent activity
In the last 90 days, Lightmatter's record added 12 institutional fund marks (latest period Jul 2026).
How much has Lightmatter raised?
Lightmatter has raised $822 million across 11 recorded rounds since 2017. The largest was an $80 million Series B in Apr 2021; the most recent was a Series D in Dec 2025. 6 of the rounds disclosed a post-money valuation.
Lightmatter has filed 2 Form Ds with the SEC since 2019, most recently in Oct 2024 ($350 million sold to 43 investors).
Lightmatter secondary market activity
11 secondary trades in Lightmatter shares are on record, between Dec 2025 and Jun 2026. Exact dates, prices and structures are available to Pro members.
A monthly secondary-market price series for Lightmatter runs from Jan 2023 to Oct 2026 (46 months).
Institutional holders and vehicles
4 SEC-registered funds reported 126 fair-value marks on Lightmatter between Apr 2025 and Jul 2026, in their N-PORT filings. Filer-level marks and implied per-share values are available to Pro members.
Comparable companies
Comparable application specific semiconductors names by valuation on PrivateMarketView: Positron ($5 billion), SiFive ($3.6 billion) and Tenstorrent ($3.2 billion).
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, 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 secondary market price. Question about this number? Full methodology →
Frequently asked about Lightmatter
- What is Lightmatter worth?
- Lightmatter is valued at $4.7B as of Oct 2026. Up 5% since its Series D, Oct 2024 ($4.5B post-money).
- 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)).