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Helion

Published indications, not live orders. Newest first; matching records grouped.

Latest observed . Availability is not verified.

Buyers 0

No published buyers.

Sellers 1

DatePrice / sizeBrokerTerms
UnpricedSize undisclosedWilliam BlairDirect block
Notes

Listed as a direct block for sale.

Financing history

RoundDateRaisedPre-moneyPost-moneyPrice / shareInvestors
Series GSep 15, 2026$500M$15B$15.5B$179.52
Alta Park Capital, Anti Fund +11
  • Alta Park Capital
  • Anti Fund
  • BoxGroup
  • Capricorn Investment Group
  • Dustin Moskovitz
  • Good Ventures
  • Lightspeed Venture Partners
  • Lux Capital
  • Mithril Capital Management
  • Peak XV Partners
  • SoftBank Investment Advisers
  • Thrive Capital
  • William Ford
Series FJan 28, 2025$425M$5B$5.43B$72.53
Capricorn Investment Group, Good Ventures +6
  • Capricorn Investment Group
  • Good Ventures
  • Lightspeed Venture Partners
  • Mithril Capital Management
  • Nucor
  • Samuel Altman
  • SoftBank Investment Advisers
  • Unmatched Ventures
Series E1Sep 15, 2023—————
Series ENov 5, 2021—————
Series DSep 1, 2020—————
Series CFeb 1, 2019—————
Series BDec 1, 2017—————
GrantDec 31, 2015—————
GrantOct 1, 2015—————
Equity-Based AcceleratorAug 19, 2014—————
Series AJul 29, 2014—————

PitchBook cached data. Investor participation is historical, not proof of current ownership. Lead labels appear only when reported. Missing details remain unspecified.

Investor participation · 16 names in the returned rounds
InvestorReported rounds
Alta Park Capital
Series G · 2026-09-15
Anti Fund
Series G · 2026-09-15
BoxGroup
Series G · 2026-09-15
Capricorn Investment Group
Series G · 2026-09-15
Series F · 2025-01-28
Dustin Moskovitz
Series G · 2026-09-15
Good Ventures
Series G · 2026-09-15
Series F · 2025-01-28
Lightspeed Venture Partners
Series G · 2026-09-15
Series F · 2025-01-28
Lux Capital
Series G · 2026-09-15
Mithril Capital Management
Series G · 2026-09-15
Series F · 2025-01-28
Nucor
Series F · 2025-01-28
Peak XV Partners
Series G · 2026-09-15
Samuel Altman
Series F · 2025-01-28
SoftBank Investment Advisers
Series G · 2026-09-15
Series F · 2025-01-28
Thrive Capital
Series G · 2026-09-15
Unmatched Ventures
Series F · 2025-01-28
William Ford
Series G · 2026-09-15
Cached deal details · 11 rounds
Round / dateType / statusInvestorsExiting investorsStored on
Series G2026-09-15Later Stage VCCompleted
Alta Park Capital, Anti Fund +11
  • Alta Park Capital
  • Anti Fund
  • BoxGroup
  • Capricorn Investment Group
  • Dustin Moskovitz
  • Good Ventures
  • Lightspeed Venture Partners
  • Lux Capital
  • Mithril Capital Management
  • Peak XV Partners
  • SoftBank Investment Advisers
  • Thrive Capital
  • William Ford
Not specified2026-10-15
Series F2025-01-28Later Stage VCCompleted
Capricorn Investment Group, Good Ventures +6
  • Capricorn Investment Group
  • Good Ventures
  • Lightspeed Venture Partners
  • Mithril Capital Management
  • Nucor
  • Samuel Altman
  • SoftBank Investment Advisers
  • Unmatched Ventures
Not specified2026-10-15
Series E12023-09-15Not specifiedStatus not specified—Not specified2026-10-15
Series E2021-11-05Not specifiedStatus not specified—Not specified2026-10-15
Series D2020-09-01Not specifiedStatus not specified—Not specified2026-10-15
Series C2019-02-01Not specifiedStatus not specified—Not specified2026-10-15
Series B2017-12-01Not specifiedStatus not specified—Not specified2026-10-15
Grant2015-12-31Not specifiedStatus not specified—Not specified2026-10-15
Grant2015-10-01Not specifiedStatus not specified—Not specified2026-10-15
Equity-Based Accelerator2014-08-19Not specifiedStatus not specified—Not specified2026-10-15
Series A2014-07-29Not specifiedStatus not specified—Not specified2026-10-15

Stored on is the local round-record date, not the last time PitchBook verified it. No new provider lookups run when this page is opened.

Share classes
SeriesIssue priceLiq. preferenceOwnershipShares authorized
Series G$179.521×3.23%2,787,072
Series G-1$179.521×0%2,787,072
Series F1$72.531×1.26%1,083,709
Series F$72.531×5.53%4,776,040
Series E1$62.721×1.21%1,048,851
Series E$41.811×13.57%11,718,332
Series D$22.791×2.02%1,747,392
Series C$9.301×1.25%1,075,163
Series B$0.711×34.86%30,098,398
Series A2$0.161×0.36%308,008
Series A1$2.601×0.09%77,002
Series A$0.721×2.02%1,741,674

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