Indicative listing context
Lightmatter Stock Price (Pre-IPO)
There is no official Lightmatter stock price, since the photonic chip maker remains a private company with no listing on any public exchange. Segmara instead tracks an indicative pre-IPO reference mark for Lightmatter, shown in the data summary below, drawn from private-market signals in the hardware sector. A free email tracker lets you follow how that mark moves without opening a brokerage account. Where shares change hands, it happens in private secondary sales, not on an open market.
Indicative private-market reference marks: not a quote and not an offer. Segmara does not sell, broker, or arrange share purchases.
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Private-share data lens
Public round-by-round marks are incomplete for this company. Segmara shows the listing mark and keeps the seed-to-IPO analysis focused on verifiable funding, tender, or secondary signals.
| Stage | Date | Valuation / price signal | Why it matters |
|---|---|---|---|
| Seed / early | Private | Not reliably public | Do not invent a seed price when the source set is thin. |
| Growth rounds | Private | Company and market sources vary | Use public sources and official company releases. |
| Segmara listing | Current | $89.19/unit · as of September 7, 2026 | Indicative reference only, not a quote or an offer. |
| IPO status | Current | No public ticker shown here | Watch official company releases and the free Segmara IPO calendar. |
Seed-to-IPO path
Illustrative completeness map. Longer bars mean stronger public data or more useful current pricing context, not lower risk.
Regulation D filings on record
The SEC full-text index lists 3 Form D filings for Lightmatter, Inc. (CIK 1768622), the filer behind Lightmatter. The most recent was filed 2024-10-25 and reports $349,999,940 sold of a $399,999,909 offering.
| Filed | Amount sold | Offering size | First sale | Source |
|---|---|---|---|---|
| 2024-10-25 | $349,999,940 | $399,999,909 | 2024-10-11 | SEC filing |
| 2023-12-21 | $155,000,084 | $155,000,084 | 2023-12-18 | SEC filing |
| 2019-02-26 | $22,229,274 | $22,229,274 | 2019-02-11 | SEC filing |
A Form D reports an exempt offering under Regulation D: what the issuer told the SEC it raised, not a valuation and not a per-share price.
Access vehicles filed with the SEC
Since 2024-03, 10 funds and single-purpose vehicles have filed a Regulation D offering under a name that references Lightmatter. That count is a measure of how much secondary demand is routed through vehicles rather than through the company.
| Filed | Filer | Source |
|---|---|---|
| 2026-07-23 | HII Lightmatter-02, a Series of HII Lightmatter LLC | SEC filing |
| 2026-06-16 | Coastline Venture Partners Lightmatter 1 LLC | SEC filing |
| 2025-05-01 | Lightmatter, Vannevar Prime I a Series of CGF2021 LLC | SEC filing |
| 2025-04-11 | Lightmatter VV 2025 a Series of CGF2021 LLC | SEC filing |
| 2025-03-06 | Lightmatter Alternate Investments, a series of MAV Alternate Investments, LP | SEC filing |
These filers are independent of Lightmatter and of Segmara. A registered name references a company, it does not prove what the vehicle holds or on what terms.
AI-ready data summary
A structured extraction layer for this article: catalogue numbers, price context, chart values, and route-specific facts that search and AI systems can read directly from the page.
| Metric | Value | Context |
|---|---|---|
| Canonical route | /lightmatter-stock-price | Stable URL path for AI and search extraction. |
| Article title | Lightmatter Stock Price (Pre-IPO) | Main page topic. |
| Attached public sources | 4 | Number of citation links rendered at the bottom of the article. |
| Segmara listed companies | 51 | Live private-company listings in the public catalogue. |
| Priced listings | 37 | Catalogue listings with visible indicative or direct marks. |
| Listings without an indicative price | 14 | Catalogue listings where a public price is intentionally not invented. |
| Company | Lightmatter | Named company covered by this page. |
| Symbol label | LMTR | Segmara display symbol; not a public stock ticker unless separately stated. |
| Sector | Hardware | Catalogue sector used for comparison and internal linking. |
| Listing structure | Secondary | How the listing is categorized on Segmara. |
| Segmara mark | $89.19/unit · as of September 7, 2026 | Visible listing mark, or no indicative price yet. |
| Sector peer count | 2 | Number of live Segmara listings in Hardware. |
| Structure peer count | 26 | Number of live Segmara listings categorized as Secondary. |
| Price rank | 21 of 37 | Ranked highest-to-lowest among Segmara listings with visible marks. |
| Price percentile | 46th | Percentile among visible Segmara catalogue marks. |
| Catalogue median mark | $92.58 | Median visible mark across priced Segmara listings. |
| Premium/discount to median | -4% | Difference between this listing mark and the catalogue median mark. |
Data fingerprint chart
| Stage | Timing | Price / valuation signal | Interpretation |
|---|---|---|---|
| Formation | Private | Early ownership | The first value creation happens before ordinary public-market access. |
| Growth rounds | Private | Institutional repricing | Later rounds and tenders create the price history buyers study. |
| Segmara listing | Current | $89.19/unit · as of September 7, 2026 | Indicative reference only, not a quote or an offer. |
| Exit path | Future | IPO, tender, acquisition, or continued private status | Liquidity timing remains company-specific. |
| Chart metric | Score | Interpretation |
|---|---|---|
| Listing price percentile | 46 / 100 | $89.19/unit · as of September 7, 2026 ranks 21 of 37 priced listings |
Analytical lens
Search intent
Searches like 'Lightmatter Stock Price (Pre-IPO)' are research questions: what a filing or a company statement confirms, what has only been reported, and what is still unknown.
What counts as a listing step
For an IPO, the primary record is a registration statement filed with the securities regulator of the listing market, such as an S-1 or F-1 on SEC EDGAR for a US listing. Funding rounds, valuations and secondary-market prices are context, not listing steps.
Segmara role
Segmara is an independent research site. It does not sell, broker, or arrange share purchases, and nothing on this page is investment advice.
How a company reaches a US listing
The SEC filing trail
DraftThe company can first submit a draft registration statement (DRS) for confidential SEC review.
S-1 or F-1The registration statement goes public on SEC EDGAR: Form S-1, or Form F-1 for many foreign companies. A company that used a draft must file publicly at least 15 days before its roadshow.
AmendmentsS-1/A or F-1/A amendments answer SEC comments, and one of them adds the expected price range.
PricingOnce the SEC declares the registration effective, the company sets the price with its underwriters and files the final prospectus, usually a 424B4.
First tradeThe shares start trading on the exchange named in the prospectus, such as Nasdaq or the NYSE.
Sources: SEC, March 3, 2025 · Investor.gov, October 14, 2022 · Regulation S-K Item 501 · SEC Form F-1.
Lightmatter on SEC EDGAR
Segmara Pro checks SEC EDGAR for Lightmatter filings every weekday and posts an alert in the members forum when one of these public filings appears. You can also check yourself with EDGAR full-text search.
Key takeaways
- Live indicative mark and sector context for Lightmatter render in the data summary below.
- Compare Lightmatter against other hardware-sector names in the catalogue.
- Track the indicative price free by email. No card, no documents, no brokerage account.
Risk notes
- Private-company exposure can be illiquid, transfer-restricted, and hard to value.
- Indicative marks and reported valuations are orientation points, not executable quotes.
- Availability of any route can depend on jurisdiction, eligibility, structure, and approval.
Public source links
Related reviews
Questions
Can I buy shares through Segmara?
No. Segmara is an independent research site. Segmara does not sell, broker, or arrange share purchases.
What can I do on Segmara?
Read the research pages, follow indicative marks with the free tracker (email only), check the free IPO calendar, or subscribe to Segmara Pro for a weekly IPO brief.
Is Segmara affiliated with the named company or platform?
No. Segmara is not affiliated with Lightmatter or any named issuer, affiliate, investor, underwriter, or platform referenced on this page.
What is Lightmatter's stock price today?
Lightmatter is private, so no official public stock price exists. Segmara shows an indicative pre-IPO reference mark in the data summary on this page. It is not a live exchange quote and not an offer to sell.
Is Lightmatter publicly traded?
No. Lightmatter has not completed an IPO and its shares do not trade on any public exchange. Any price shown for Lightmatter is an indicative private-market estimate tied to hardware-sector secondary activity.
How can I get exposure to Lightmatter?
Segmara does not sell, broker, or arrange share purchases. You can follow the indicative mark for Lightmatter with the free email tracker.
What is Lightmatter worth?
Segmara does not publish a headline valuation figure. The indicative mark in the data summary below reflects private-market signals, and any reported valuations elsewhere are orientation points, not executable quotes.
Next step
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