Birnam Oak Advisors, LP — 13F Holdings & Portfolio
CIK 1997245 · latest 13F-HR filed 2026-05-12
Birnam Oak Advisors, LP manages $440.6M in 13F-reported U.S. long-equity assets across 51 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are ACWI (8.69%), SPY (8.56%), NSC (6.28%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 15 new positions, exited 16, added to 3, and trimmed 9.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
$440.6M
Long-equity book
51
Distinct positions
2026-03-31
Filed 2026-05-12
+15 / −16 / ↑3 / ↓9
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- CHART INDS INC$16.3M +65.8%
- NORFOLK SOUTHN CORP$8.2M +23.2%
- ECHOSTAR CORP$2.1M +13.9%
Top Trims
- TXNM ENERGY INC-$13.8M -61.7%
- VANGUARD INDEX FDS-$11.2M -85.1%
- CAPITAL ONE FINL CORP-$4.1M -85.5%
- MICROSOFT CORP-$1.8M -61.7%
- BERKSHIRE HATHAWAY INC DEL-$1.3M -16.6%
New Positions
- CLEARWATER ANALYTICS HLDGS I$40.7M
- WARNER BROS DISCOVERY INC$33.7M
- PENUMBRA INC$31.5M
- KENVUE INC$24.3M
- QORVO INC$18.0M
Exited Positions
- CYBERARK SOFTWARE LTD$45.3M
- FRONTIER COMMUNICATIONS PARE$38.7M
- ELECTRONIC ARTS INC$30.8M
- COMERICA INC$29.0M
- DAYFORCE INC$24.9M
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | ISHARES TR | ACWI | 464288257 | $38.3M | 8.69% | 276,800 | SH |
| 2 | STATE STR SPDR S&P 500 ETF T Put | SPY | 78462F103 | $37.7M | 8.56% | 58,000 | SH |
| 3 | NORFOLK SOUTHN CORP | NSC | 655844108 | $27.7M | 6.28% | 96,438 | SH |
| 4 | CHART INDS INC | GTLS | 16115Q308 | $24.4M | 5.54% | 118,166 | SH |
| 5 | CLEARWATER ANALYTICS HLDGS I | CWAN | 185123106 | $24.0M | 5.45% | 1,015,788 | SH |
| 6 | STATE STR SPDR S&P 500 ETF T Put | SPY | 78462F103 | $20.8M | 4.72% | 32,000 | SH |
| 7 | WARNER BROS DISCOVERY INC | WBD | 934423104 | $18.9M | 4.29% | 688,218 | SH |
| 8 | PENUMBRA INC | PEN | 70975L107 | $18.7M | 4.24% | 56,946 | SH |
| 9 | CHART INDS INC | GTLS | 16115Q308 | $16.7M | 3.79% | 80,774 | SH |
| 10 | CLEARWATER ANALYTICS HLDGS I | CWAN | 185123106 | $16.6M | 3.77% | 703,351 | SH |
| 11 | NORFOLK SOUTHN CORP | NSC | 655844108 | $15.9M | 3.61% | 55,397 | SH |
| 12 | WARNER BROS DISCOVERY INC | WBD | 934423104 | $14.8M | 3.36% | 539,558 | SH |
| 13 | KENVUE INC | KVUE | 49177J102 | $14.7M | 3.34% | 852,701 | SH |
| 14 | ECHOSTAR CORP | SATS | 278768106 | $14.2M | 3.22% | 121,193 | SH |
| 15 | PENUMBRA INC | PEN | 70975L107 | $12.8M | 2.91% | 39,044 | SH |
| 16 | QORVO INC | QRVO | 74736K101 | $10.8M | 2.44% | 138,996 | SH |
| 17 | INVESCO QQQ TR Put | QQQ | 46090E103 | $10.0M | 2.28% | 17,400 | SH |
| 18 | REVOLUTION MEDICINES INC | RVMD | 76155X100 | $9.7M | 2.21% | 100,150 | SH |
| 19 | KENVUE INC | KVUE | 49177J102 | $9.6M | 2.19% | 559,570 | SH |
| 20 | UNIFIRST CORP MASS | UNF | 904708104 | $7.5M | 1.70% | 29,777 | SH |
| 21 | INVESCO QQQ TR Put | QQQ | 46090E103 | $7.3M | 1.65% | 12,600 | SH |
| 22 | QORVO INC | QRVO | 74736K101 | $7.2M | 1.63% | 93,014 | SH |
| 23 | BERKSHIRE HATHAWAY INC DEL | BRK.B | 084670702 | $6.7M | 1.52% | 14,000 | SH |
| 24 | VANGUARD INDEX FDS | VTV | 922908744 | $6.5M | 1.47% | 33,000 | SH |
| 25 | REVOLUTION MEDICINES INC | RVMD | 76155X100 | $5.8M | 1.31% | 59,263 | SH |
| 26 | UNIFIRST CORP MASS | UNF | 904708104 | $5.4M | 1.22% | 21,351 | SH |
| 27 | TXNM ENERGY INC | TXNM | 69349H107 | $4.9M | 1.11% | 83,312 | SH |
| 28 | ISHARES TR | IEUR | 46434V738 | $3.9M | 0.88% | 55,000 | SH |
| 29 | J P MORGAN EXCHANGE TRADED F | BBJP | 46641Q217 | $3.8M | 0.86% | 55,000 | SH |
| 30 | TXNM ENERGY INC | TXNM | 69349H107 | $3.7M | 0.84% | 63,338 | SH |
| 31 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $3.3M | 0.74% | 5,000 | SH |
| 32 | ECHOSTAR CORP | SATS | 278768106 | $2.9M | 0.66% | 24,742 | SH |
| 33 | VANGUARD INTL EQUITY INDEX F | VGK | 922042874 | $2.9M | 0.65% | 35,000 | SH |
| 34 | AMAZON COM INC | AMZN | 023135106 | $2.0M | 0.45% | 9,500 | SH |
| 35 | VANGUARD INDEX FDS | VUG | 922908736 | $2.0M | 0.45% | 27,100 | SH |
| 36 | MICROSOFT CORP | MSFT | 594918104 | $1.1M | 0.25% | 3,000 | SH |
| 37 | ISHARES TR | IVE | 464287408 | $1.1M | 0.24% | 5,000 | SH |
| 38 | UNITED STS BRENT OIL FD LP Call | BNO | 91167Q100 | $847.8K | 0.19% | 16,300 | SH |
| 39 | GOLDMAN SACHS GROUP INC | GS | 38141G104 | $846.0K | 0.19% | 1,000 | SH |
| 40 | CAPITAL ONE FINL CORP | COF | 14040H105 | $699.3K | 0.16% | 3,833 | SH |
| 41 | MORGAN STANLEY | MS | 617446448 | $658.3K | 0.15% | 4,000 | SH |
| 42 | VISA INC | V | 92826C839 | $604.5K | 0.14% | 2,000 | SH |
| 43 | JPMORGAN CHASE & CO | JPM | 46625H100 | $588.3K | 0.13% | 2,000 | SH |
| 44 | CONTROLADORA VUELA COMP DE A | VLRS | 21240E105 | $544.1K | 0.12% | 75,158 | SH |
| 45 | CAESARS ENTERTAINMENT INC NE Call | CZR | 12769G100 | $433.5K | 0.10% | 16,400 | SH |
| 46 | ISHARES INC | EWJ | 46434G822 | $337.8K | 0.08% | 4,000 | SH |
| 47 | AMERICAN EXPRESS CO | AXP | 025816109 | $302.5K | 0.07% | 1,000 | SH |
| 48 | UNITED STS BRENT OIL FD LP Call | BNO | 91167Q100 | $296.5K | 0.07% | 5,700 | SH |
| 49 | CAESARS ENTERTAINMENT INC NE Call | CZR | 12769G100 | $293.4K | 0.07% | 11,100 | SH |
| 50 | FULL HSE RESORTS INC | FLL | 359678109 | $14.9K | 0.00% | 6,602 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-12 | $440.6M | 51 | 0001172661-26-001696 |
| 2025-12-31 | 2026-02-17 | $446.5M | 51 | 0001172661-26-001061 |
| 2025-09-30 | 2025-11-14 | $435.4M | 49 | 0001172661-25-004845 |