Birnam Oak Advisors, Lp
- Regulatory AUM
- $577M
- Discretionary
- $577M
- Clients
- 7
- Avg AUM / client
- $82.4M
- Accounts
- 6
- Employees
- 7
AUM over time
Reported AUM from Form ADV filings, plotted by filing date · as of Mar 26, 2026
Investments (13F portfolio — 34 positions, $440,642,976)
13F period Mar 31, 2026| # | Issuer | Class | Value | Shares | % of 13F | % of AUM |
|---|---|---|---|---|---|---|
| 1 | State Str Spdr S&P 500 Etf T | TR UNIT | $61,782,300 | 95,000 | 14.0% | 10.7% |
| 2 | Norfolk Southn Corp | COM | $43,576,645 | 151,835 | 9.89% | 7.55% |
| 3 | Chart Inds Inc | COM | $41,130,846 | 198,940 | 9.33% | 7.13% |
| 4 | Clearwater Analytics Hldgs I | CL A | $40,657,637 | 1,719,139 | 9.23% | 7.05% |
| 5 | Ishares Tr | MSCI ACWI ETF | $38,300,816 | 276,800 | 8.69% | 6.64% |
| 6 | Warner Bros Discovery Inc | COM SER A | $33,714,729 | 1,227,776 | 7.65% | 5.84% |
| 7 | Penumbra Inc | COM | $31,520,236 | 95,990 | 7.15% | 5.46% |
| 8 | Kenvue Inc | COM | $24,347,552 | 1,412,271 | 5.53% | 4.22% |
| 9 | Qorvo Inc | COM | $17,957,574 | 232,010 | 4.08% | 3.11% |
| 10 | Invesco Qqq Tr | UNIT SER 1 | $17,315,400 | 30,000 | 3.93% | 3.0% |
| 11 | Echostar Corp | CL A | $17,084,611 | 145,935 | 3.88% | 2.96% |
| 12 | Revolution Medicines Inc | COM | $15,502,915 | 159,413 | 3.52% | 2.69% |
| 13 | Unifirst Corp Mass | COM | $12,863,293 | 51,128 | 2.92% | 2.23% |
| 14 | Txnm Energy Inc | COM | $8,573,159 | 146,650 | 1.95% | 1.49% |
| 15 | Berkshire Hathaway Inc Del | CL B NEW | $6,708,800 | 14,000 | 1.52% | 1.16% |
| 16 | Vanguard Index Fds | VALUE ETF | $6,474,600 | 33,000 | 1.47% | 1.12% |
| 17 | Ishares Tr | CORE MSCI EURO | $3,864,850 | 55,000 | 0.88% | 0.67% |
| 18 | J P Morgan Exchange Traded F | BETABULDRS JAPAN | $3,790,050 | 55,000 | 0.86% | 0.66% |
| 19 | Vanguard Intl Equity Index F | FTSE EUROPE ETF | $2,885,050 | 35,000 | 0.65% | 0.5% |
| 20 | Amazon Com Inc | COM | $1,978,565 | 9,500 | 0.45% | 0.34% |
| 21 | Vanguard Index Fds | GROWTH ETF | $1,972,834 | 27,100 | 0.45% | 0.34% |
| 22 | United Sts Brent Oil Fd Lp | UNIT | $1,144,220 | 22,000 | 0.26% | 0.2% |
| 23 | Microsoft Corp | COM | $1,110,510 | 3,000 | 0.25% | 0.19% |
| 24 | Ishares Tr | S&P 500 VAL ETF | $1,055,750 | 5,000 | 0.24% | 0.18% |
| 25 | Goldman Sachs Group Inc | COM | $845,990 | 1,000 | 0.19% | 0.15% |
Top 25 of 34 positions from the manager's latest Form 13F · source filing (EDGAR) ↗. 13F covers long US-listed positions only. "% of AUM" is share of the firm's total regulatory AUM (Form ADV Item 5.F).
Who they serve
| Client type | Clients | AUM | % of AUM |
|---|---|---|---|
| Investment companies | 1 | $0 | — |
| Pooled investment vehicles (non-investment companies) | 6 | $577M | 100.0% |
Private funds (3)
Reported in Form ADV Section 7.B.(1), filing of Nov 2024 · $339M combined gross assets
| Fund | Type | Domicile | Gross assets | Owners |
|---|---|---|---|---|
| Birnam Oak Master Fund, Lp master | Hedge Fund | Cayman Islands | $169M | 20 |
| Birnam Oak Fund, Lp feeder | Hedge Fund | Delaware | $165M | 20 |
| Birnam Oak Offshore Fund, Lp feeder | Hedge Fund | Cayman Islands | $4.6M | 3 |
People (2)
| Name | Role / title | Credentials | With firm since | Ownership |
|---|---|---|---|---|
| Delong, Christopher, Lord | Chief Executive Officer / Portfolio Manager | Jul 2023 (3y) | Less than 5% | |
| Ross, Erin, Colleen | Chief Compliance Officer / Chief Operating Officer / General Counsel | Sep 2023 (3y) | Less than 5% |
Entity owners (Schedule A/B)
| Entity | Title / status | Since | Sch. | Ownership |
|---|---|---|---|---|
| Cld 2023 Revocable Trust | Limited Partner | Nov 2024 | A | 75% or more |
| Birnam Oak Advisors Gp, Llc | General Partner | Jul 2023 | A | Less than 5% |
| Cld 2023 Revocable Trust | Managing Member | Nov 2024 | B | ≈ 0% – 5% via Birnam Oak Advisors Gp, Llc |
Undisclosed: 0% – 25% of the firm is not attributable from the filed Schedule A bands.
Estimated effective ownership (look-through of filed bands):
- Cld 2023 Revocable Trust: 75% – 100% of Birnam Oak Advisors Gp, Llc × 0% – 5% direct ≈ 0% – 5% of the firm
Roster from the IAPD representatives feed; ownership and acquisition dates from Form ADV Schedule A/B. "Since" is the earliest filed registration or acquisition date.
Private funds (3, $339M gross assets)
| Fund | Type | Gross assets | Min. investment | Owners |
|---|---|---|---|---|
| Birnam Oak Master Fund, Lp | Hedge Fund | $169M | $1.0M | 20 |
| Birnam Oak Fund, Lp | Hedge Fund | $165M | $1.0M | 20 |
| Birnam Oak Offshore Fund, Lp | Hedge Fund | $4.6M | $1.0M | 3 |
From Form ADV Section 7.B private fund reporting.
Documents (1 archived)
| Form | Period | Size | |
|---|---|---|---|
| Form ADV (full filing) | 03/26/2026 | 1.71 MB | View · PDF · Source ↗ |
Archived copies of the firm's regulatory filings, versioned by content hash.
Disciplinary disclosures
No disciplinary events reported on the firm's latest Form ADV filing.
How they charge
- • Percentage of assets under management
- • Performance-based fees
- • Other fees
- • PASS THROUGH EXPENSE REIMBURSEMENT
Services
- • Portfolio management for investment companies
- • Portfolio management for pooled investment vehicles
Custody
Firm reports having custody of client funds or securities (Item 9.A).
No custodian data reported or mined yet.
Source
All data on this page comes from this firm's Form ADV filings, reproduced without modification. Latest filing: Mar 26, 2026.
View current Form ADV (SEC/IAPD) ↗