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Data / Form D filings / Halcyon Carbon, Inc.

Halcyon Carbon, Inc.: Form D filing

Halcyon Carbon, Inc., a technology company in San Francisco, CA, filed a Form D with the SEC in 2026. The latest, on March 11, 2026, reports $21 million sold of a $21 million offering to 14 investors.

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Company details from the filing

Address
755 SANSOME ST, San Francisco, CA, 94111
Phone
(650) 392-4367
Industry
Other Technology
Entity type
Corporation
Incorporated in
Delaware
Year incorporated
2023
Revenue range
Decline to Disclose
Exemptions claimed
Rule 506(b)
SEC identifier (CIK)
2118358

Form D filings

FiledTypeOfferingSoldRemainingInvestorsFirst saleFiling
Mar 11, 2026New notice$21,027,237$21,027,23714Feb 24, 2026sec.gov

Executive officers and directors named in the filing

NameRoleNote in the filing
Bruce FalckExecutive Officer, Director, Promoter
Tanuj DuttaDirector
Nathaniel BullardDirector
Tyler LancasterDirector

Other technology companies in California that filed recently

Every Form D from the week of Mar 9, 2026 · All recent filings in California · All recent Other Technology filings

Read from SEC EDGAR. Amount sold is what Halcyon Carbon, Inc. reported on the day it filed; on an offering that is still open, a later amendment can raise it. Free to reuse with credit to SpecStream under CC BY 4.0.