Lightmatter isn't public.

Watch Lightmatter and the private AI names people chase before IPO. Email only, no payment.

Lightmatter watchlist

Free watchlist. Email only.

Lightmatter range watchIndicative secondary-market ranges, not executable quotes.

AI peer comparisonCompare OpenAI with Anthropic, Neuralink, Perplexity, Databricks, and Stripe.

Optional review pathIf you are serious later, continue from the tracker into a private review request.

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Free to start. By continuing you agree to the terms and disclosures. Segmara is not a broker. This is educational and review-first, not an offer to sell securities or investment advice.

52+tracked private names

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Inside the trackerHot private names

LightmatterHardware - Secondary

$82.00/unit · as of June 22, 2026

OpenAIArtificial Intelligence - Indicative

$733.54/sh · as of June 22, 2026

AnthropicArtificial Intelligence - Indicative

$589.01/sh · as of June 22, 2026

NeuralinkBiotechnology - Indicative

$75.62/sh · as of June 22, 2026

Perplexity AIArtificial Intelligence - Secondary

$61.00/unit · as of June 22, 2026

Indicative secondary-market ranges, never executable quotes.

Track Lightmatter alongside OpenAI, Anthropic, Neuralink, Perplexity, Databricks, Stripe.

Independent research. Not a broker, and not investment advice.

Lightmatter watchlist

Free watchlist. Email only.

Lightmatter range watchIndicative secondary-market ranges, not executable quotes.

AI peer comparisonCompare OpenAI with Anthropic, Neuralink, Perplexity, Databricks, and Stripe.

Optional review pathIf you are serious later, continue from the tracker into a private review request.

Already have an account? Log in

Free to start. By continuing you agree to the terms and disclosures. Segmara is not a broker. This is educational and review-first, not an offer to sell securities or investment advice.

What the tracker shows

As of August 2026, Segmara tracks indicative reference marks for 37 private companies, including OpenAI, Anthropic and Neuralink. Marks are indicative only: they are not live exchange quotes, not offers to sell securities, and not guaranteed transaction prices.

Each mark aggregates private-market signals such as reported secondary transactions and funding rounds, and shows the date it was set. The desk reviews the catalogue against primary sources; the most recent full review was completed on August 23, 2026.

Primary references: SEC private placements investor bulletin, FINRA private placements, SEC EDGAR full-text search.

Is the Segmara pre-IPO tracker free?

Yes. The tracker is free and email-only. No card, no documents, and no brokerage account are required, and no allocation is promised.

Are these live stock prices?

No. The companies on the tracker are private, so they have no public stock price. Segmara publishes indicative reference marks with the date each mark was set. They are not live exchange quotes, not offers, and not guaranteed transaction prices.

How often are the indicative marks refreshed?

Each mark shows the date it was set, and the desk reviews the catalogue against primary sources such as SEC filings and reported funding rounds. The most recent full review was completed on August 23, 2026.

Can I buy shares through the tracker?

No. The tracker is research only. Segmara is not a broker-dealer and does not sell, broker, or arrange share purchases through this page. A separate, account-based review path exists for serious inquiries.