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Birnam Oak Advisors, LP

New York, NYSEC-registered investment adviserCRD 328180

Filed as BIRNAM OAK ADVISORS, LP

Birnam Oak Advisors, LP is an SEC-registered investment advisory firm in New York, NY, registered since 2023, reporting $500 million to $1 billion in regulatory assets under management in its Form ADV filing dated March 26, 2026.

2 years
registered since 2023
$577,035,350
assets under management
3 arrangements
Percentage of assets, Performance-based and more
None
disclosure items (Item 11)

Quick answers

From the filing

How is Birnam Oak Advisors, LP compensated?

On its Form ADV (Item 5.E, October 2026), Birnam Oak Advisors, LP reports these compensation arrangements: a percentage of assets under its management; performance-based fees; other.

What does Birnam Oak Advisors, LP's brochure say about its fees?

Its Form ADV Part 2A brochure dated March 26, 2026 states: Asset-based fee: 0.75% to 1% a year (a range, as the brochure states it). Fees can differ by service and may be negotiable; the brochure is the complete statement.

Where is Birnam Oak Advisors, LP located?

Birnam Oak Advisors, LP's principal office is in New York, NY, according to its Form ADV.

Is Birnam Oak Advisors, LP registered with the SEC or a state?

Birnam Oak Advisors, LP is an SEC-registered investment advisory firm, registered since 2023. Status as filed: Approved. CRD 328180.

How much does Birnam Oak Advisors, LP manage?

Birnam Oak Advisors, LP reports $577,035,350 in regulatory assets under management in its Form ADV filing dated March 26, 2026 (100% discretionary).

How have Birnam Oak Advisors, LP's assets and staff changed since 2024?

In the Form ADV data for Birnam Oak Advisors, LP: Regulatory assets under management: $169,470,640 in the October 2024 data and $577,035,350 in the October 2026 data, up 240%. Total employees: 7 in October 2024 and 7 in October 2026. Assets under management move with markets as well as with clients coming and going.

What types of clients does Birnam Oak Advisors, LP serve?

By number of clients on Form ADV Item 5.D: pooled investment vehicles (other than investment companies and business development companies) (6); investment companies (1).

Does Birnam Oak Advisors, LP report any disciplinary disclosures?

Reports no disclosure items on Form ADV Item 11. The detail of any item is on the firm's SEC record: https://adviserinfo.sec.gov/firm/summary/328180

What changed in Birnam Oak Advisors, LP's recent Form ADV filings?

In the April 2026 filing data: Regulatory assets under management went from $372,447,577 to $577,035,350 (+55%).

From the Form ADV filing

Every figure below is as the firm filed it with regulators, as of October 2026.

How the firm is compensated

Item 5.E
  • A percentage of assets under your management
  • Performance-based fees
  • Other

Item 5.E lists how the firm is compensated for its advice; Items 5.B, 6.A, and 7.A show whether its people or related companies can also earn commissions. Percentage of assets, fixed, hourly, subscription, and performance-based fees come from clients (a performance-based fee depends on investment results); commissions come with a sale or a trade, often from the company behind the product. How fees, commissions, and other arrangements differ

Fees and minimums

Form ADV Part 2A

Asset-based fee: 0.75% to 1% a year (a range, as the brochure states it)

The brochure's wording
Birnam Oak is generally paid a management fee of between 0.75% and 1.00% per annum for its Founders Interests in the Birnam Oak Funds.

As stated in the firm's Form ADV Part 2A brochure dated March 26, 2026. Fees can differ by service and may be negotiable; the brochure is the complete statement. Read the brochure on the SEC's IAPD site

Regulatory assets under management

Item 5.F
$577,035,350

$577,035,350 as of October 2026, filing dated March 26, 2026.

Discretionary: $577,035,350.Non-discretionary: $0.

A measure of scale, not skill or returns. Discretionary means the firm decides trades; non-discretionary means clients approve each one. What assets under management means

Who the firm serves

Item 5.D
Individuals (other than high net worth individuals)
Clients 0 Assets $0 (0%)
High net worth individuals
Clients 0 Assets $0 (0%)
Banking or thrift institutions
Clients 0 Assets $0 (0%)
Investment companies
Clients 1 Assets $0 (0%)
Business development companies
Clients 0 Assets $0 (0%)
Pooled investment vehicles (other than investment companies and business development companies)
Clients 6 Assets $577,035,350 (100%)
Pension and profit sharing plans (but not the plan participants or government pension plans)
Clients 0 Assets $0 (0%)
Charitable organizations
Clients 0 Assets $0 (0%)
State or municipal government entities (including government pension plans)
Clients 0 Assets $0 (0%)
Other investment advisers
Clients 0 Assets $0 (0%)
Insurance companies
Clients 0 Assets $0 (0%)
Sovereign wealth funds and foreign official institutions
Clients 0 Assets $0 (0%)
Corporations or other businesses not listed above
Clients 0 Assets $0 (0%)
Other
Clients 0 Assets $0 (0%)

A firm with no individual clients is an institutional manager even if it manages billions; the mix tells you whom the practice is built around.

Advisory services

Item 5.G
  • Portfolio management for investment companies (and business development companies)
  • Portfolio management for pooled investment vehicles (other than investment companies)

Registration and firm details

Items 1, 2, 5
Registration
SEC-registered investment adviser. Status as filed: Approved.
Registered since
2023 (2 years)
Employees
Total: 7. Performing investment advisory functions: 3.
Wrap fee program participation
No.
States registered or notice-filed
Not reported.

SEC-registered investment advisers are examined by the SEC. SEC, state, and exempt registration

Disclosures

Item 11

None Reports no disclosure items on Form ADV Item 11. View on IAPD.

Item 11 asks about criminal, regulatory, and civil events involving the firm and its advisory personnel. The detail of each yes answer is on the IAPD record. Reading a firm's disclosures

Assets and staff over time

Items 5.A, 5.F
$169M 2024 $372M 2025 $577M 2026
Data periodAssets under managementEmployeesFiling dated
October 2026$577,035,3507March 26, 2026
October 2025$372,447,5777April 8, 2025
October 2024$169,470,6407September 11, 2024

Regulatory assets under management: $169,470,640 in the October 2024 data and $577,035,350 in the October 2026 data, up 240%.

Total employees: 7 in October 2024 and 7 in October 2026.

As filed in each year's data for the same month. Assets under management move with markets as well as with clients coming and going; they measure scale, not skill or returns. Most firms update these figures once a year.

Changes in the filing

Last 12 months
  1. April 2026
    • Regulatory assets under management went from $372,447,577 to $577,035,350 (+55%).

Compared month to month from the SEC's monthly adviser data and the state compilation feed. Owners and control persons are summarized, never named.

Websites listed on Form ADV

Item 1.I
birnam-oak.com

Source: Form ADV, as of October 2026. Values appear as filed; a value the firm did not report is shown as "Not reported."

Cite this page

AdvisorCensus. Birnam Oak Advisors, LP (CRD 328180): Form ADV filing data as of October 2026.
https://advisorcensus.com/firm/birnam-oak-advisors-lp-new-york-ny-328180