Form D · Hedge Fund

Birnam Oak Master Fund, LP

Grand Cayman, E9 · CIK 0001865162

Offering snapshot reported Sep 25, 2026 · SEC filing

Reported sold
$75.1M
Indefinite offering
Investors reported
15
Form D · investor count
Minimum accepted
$1M
Reported outside-investor minimum
First sale
May 17, 2021
As reported in this filing

Fundraising history

Reported sold
Reported amount sold by Form D filing date$0$37.6M$75.1MJun 1, 2021: $14,350,000.00Jun 1, 2021Jun 1, 2022: $29,900,000.00Jun 1, 2023: $40,977,700.00Jan 24, 2024: $40,977,700.00Jan 10, 2025: $57,051,005.00Jan 9, 2026: $73,711,005.00Sep 25, 2026: $75,136,005.00Sep 25, 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$73,711,005 → $75,136,005

Filing history

Scroll to see all columns →

FiledFiling typeReported soldChange vs linked filingInvestorsSource
Sep 25, 2026Amendment$75,136,005$1,425,000vs Jan 9, 202615SEC filing
Jan 9, 2026Amendment$73,711,005$16,660,000vs Jan 10, 202515SEC filing
Jan 10, 2025Amendment$57,051,005$16,073,305vs Jan 24, 202415SEC filing
Jan 24, 2024Amendment$40,977,700$0vs Jun 1, 20239SEC filing
Jun 1, 2023Amendment$40,977,700$11,077,700vs Jun 1, 20229SEC filing
Jun 1, 2022Amendment$29,900,000$15,550,000vs Jun 1, 20219SEC filing
Jun 1, 2021Initial$14,350,000No comparisonNot reportedSEC filing

Offering details

Securities
Pooled investment fund
Exemptions
06b, 3C, 3C.7
Duration over one year
Yes
Business combination
No
Sales commissions
$0
Finders' fees
$0
Form D file number
021-401250
Includes only securities sold to U.S. investors by the Issuer in reliance on Regulation D (excludes securities sold to non-U.S. investors in reliance on Regulation S).

Source: Form D, filed Sep 25, 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
Michael B. Bausano Executive
Birnam Oak Advisors, Lp Executive, Promoter
Frank P. Brosens Executive
Christopher De Long Executive, Promoter
Jon L. Jachman Executive
Margaret T. Jones Executive
James R. Jordan Executive
Kevin P. Kavanagh Executive
Elizabeth A. Keeley Executive
Thomas N. Kempner Executive
Keith A. Magliana Executive
Peyton L. Mc Nutt Executive
Richard A. Reneberg Executive
Erin Ross Executive, Promoter
Marc P. Schwartz Executive
N/A Taconic Capital Advisors (Hong Kong) Limited Executive
N/A Taconic Capital Advisors L.P. Executive
N/A Taconic Capital Advisors Uk Llp Executive
N/A Taconic Paradigm Gp Llc Promoter
James S. Thompson Executive
Alyssa G. Yavner Executive

Issuer details

Industry: Pooled Investment Fund (See others in industry)

Address:
Maples Corporate Services Limited Ugland House, South Church Street
Grand Cayman, E9, KY1-1104