Form D · Hedge Fund

Castle Magnus Bitcoin Fund LP

Lafayette, CA · CIK 0001742488

Offering snapshot reported Mar 4, 2026 · SEC filing

Reported sold
$6.94M
Indefinite offering
Investors reported
19
Form D · investor count
Minimum accepted
$0
Reported outside-investor minimum
First sale
Apr 1, 2021
As reported in this filing

Fundraising history

Reported sold
Reported amount sold by Form D filing date$0$3.47M$6.94MMar 16, 2021Mar 15, 2022: $6,773,925.00Mar 15, 2022Mar 14, 2023: $200,000.00Mar 14, 2023Mar 14, 2024: $6,673,209.00Mar 14, 2024Mar 5, 2025: $6,738,209.00Mar 5, 2025Mar 4, 2026: $6,937,048.00Mar 4, 2026

Dates are filing dates, not cash receipt dates. Decreases are reported revisions, not evidence of withdrawals. Separate offering histories are not added together.

What changed?

Latest filing versus its linked predecessor, where available.

  • Reported sold$6,738,209 → $6,937,048
  • Reported investors18 → 19

Filing history

Scroll to see all columns →

FiledFiling typeReported soldChange vs linked filingInvestorsSource
Mar 4, 2026Amendment$6,937,048$198,839vs Mar 5, 202519SEC filing
Mar 5, 2025Amendment$6,738,209$65,000vs Mar 14, 202418SEC filing
Mar 14, 2024Amendment$6,673,209$6,473,209vs Mar 14, 202318SEC filing
Mar 14, 2023Amendment$200,000-$6,573,925vs Mar 15, 20221SEC filing
Mar 15, 2022Amendment$6,773,925No comparison11SEC filing
Mar 16, 2021InitialYet to sellNo comparison0SEC filing
Jan 11, 2021Initial$1,025,000No comparison3SEC filing
Dec 20, 2018Amendment$500,000No comparison1SEC filing
Jun 5, 2018InitialYet to sellNo comparison0SEC filing

Offering details

Securities
Pooled investment fund, Other
Exemptions
06c, 3C, 3C.1
Duration over one year
Yes
Business combination
No
Sales commissions
$0 (estimated)
Finders' fees
$0 (estimated)
Form D file number
021-392449
Limited Partnership Interests.

Source: Form D, filed Mar 4, 2026. Minimum accepted may differ from a standard advertised minimum.

Fund connections

No confirmed ADV fund connection is available for this issuer.

People & organizations

Current and past Form D appearances. These existing records do not establish a person's current role or uniquely identify them across issuers.

People and organizations reported in Form D filings
NameReported role
Timothy Beeman Executive
N/A Castle Analytics Llc Executive
Castle Analytics Llc Executive
Charles Choi Executive
Peter Eberle Executive
Brian Friel Director
Amanda Gates Director
Daniel Hoover Director
Nicholas Mussallem Executive
Matthew Sitzmann Executive

Issuer details

Industry: Pooled Investment Fund (See others in industry)

Address:
3697 Mt. Diablo Blvd., Suite 100
Lafayette, CA, 94549