Alternative Energy Equipment · Everett, WA · Founded 2013 · Privately Held (backing)
Developer of a fusion energy technology designed to generate clean electricity through controlled nuclear fusion. Helion is based in Everett, WA and was founded in 2013. It was valued at $15 billion at its Series E in Nov 2021, the last priced event on record. It has raised $1 billion across 2 recorded rounds; the latest was a $500 million Series E in Nov 2021.
PMV mark · valuation
$15.0B
Oct 2026
Priced at
its Series E
Nov 2021
Total raised
$1.0B
Last round
Later Stage VC (Series E)
Nov 2021
No prints on record
No secondary trades in Helion shares have been recorded yet. When market activity lands it appears here as monthly aggregates and, for platform-recorded trades, dated prints.
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Secondary marks are indicative month-end price levels observed across secondary-market trading venues — a level, not a trade — and are the market input to the PrivateMarketView mark. Private share prices aren’t published anywhere. Aggregate figures combine multiple reporting channels — direct participant reports, platform transactions, third-party market intelligence — at monthly granularity. Individually dated prints are a Pro feature and are shown only for transactions recorded on our own platform. Third-party-reported trades are never republished individually, at any tier. Verified prints (✓) have been confirmed against a second source. Prints marked SPV or Forward reflect the structure’s pricing, which can differ from direct share transfers of Helion stock.
