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SEC Form D · filed March 11, 2026

Halcyon Carbon, Inc

Offering
$21.0M
Sold
$21.0M
Exemption
Rule 506(b)
Industry
Other Technology
Location
SAN FRANCISCO, CA
Type
—

Rule 506(b): private placement to accredited investors, no public advertising.

People & firms on this filing (4)

Tanuj Dutta · San Francisco, CADirectorTyler Lancaster · Houston, TXDirectorBruce Falck · Redwood City, CAExec · Director · PromoterNathaniel Bullard · San Francisco, CADirector

Public SEC Form D (Reg D) filing. · View issuer on SEC EDGAR ↗