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Reg CFTRL21.4–2.9Tier IOpen

Halcyon Aneutronic

Halcyon Aneutronic

Proton-boron-11 fusion at a $50 minimum. The most speculative thing on this platform, and we would rather say so.

Proton-boron-11 produces three helium nuclei and essentially no neutrons, which would mean no activated structure, no tritium handling and no neutron shielding. It is also the hardest fusion reaction anyone is seriously attempting, requiring roughly ten times the temperature of deuterium-tritium against much stronger radiative losses. Halcyon has demonstrated the ion beam and nothing beyond it.

Rio Grande Research Park · Los Alamos, NMNot applicableEscrow: Cadence Escrow Services
TRL 2 of 9, band 1.4 to 2.9, signed by Dr. Ingrid Halvorsen, PhD Plasma Physics; fusion program technical reviewer, on Jul 1, 2026.See the evidence it rests on

$742,000 committed of $3,000,000

$111,300 released · 25% subscribed

Released to the issuerCommitted, held in escrowRemaining
Minimum
$50

$50 per unit

Instrument
SAFE
Term
None
Investors
1,684

Closes January 31, 2027 · 140 days remaining

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Offering documents

The filing set is determined by the rail. This offering is a Regulation Crowdfunding offering.

  • Form C offering statement

    Form C · 12 pages · filed Jul 13, 2026

    Not available in demo

  • Subscription agreement

    Agreement · 49 pages · filed Jul 13, 2026

    Not available in demo

  • Audited financial statements

    Financials · 86 pages · filed Jul 13, 2026

    Not available in demo

  • TRL assessment report

    TRL report · 123 pages · filed Jul 13, 2026

    Not available in demo

  • Milestone and capital release schedule

    Schedule · 160 pages · filed Jul 13, 2026

    Not available in demo