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Birnam Oak Advisors, LP — 13F Holdings & Portfolio

CIK 1997245 · latest 13F-HR filed 2026-08-14

Backtest portfolio

Birnam Oak Advisors, LP manages $616.1M in 13F-reported U.S. long-equity assets across 60 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are ACWI (9.81%), GTLS (6.15%), NSC (6.04%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 8 new positions, exited 2, added to 28, and trimmed 0.

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.

Filer Information
Address
520 MADISON AVENUE
SUITE 2104
NEW YORK, NY 10022
Phone
(212) 970-5800
Filing Manager
Birnam Oak Advisors, LP
New York, NY
Signatory
Erin Colleen Ross
COO, General Counsel, Chief Compliance Officer
Loading holdings…
AUM

$616.1M

Long-equity book

Holdings

60

Distinct positions

Period

2026-06-30

Filed 2026-08-14

Q/Q Activity

+8 / −2 / ↑28 / ↓0

vs 2026-03-31

Firm Profile & Key People
Name Title / Status Ownership Type

Top Adds (vs prior quarter)

  • KENVUE INC$33.1M +135.9%
  • UNIFIRST CORP MASS$32.4M +251.9%
  • PENUMBRA INC$22.6M +71.6%
  • ISHARES TR$22.1M +57.8%
  • WARNER BROS DISCOVERY INC$20.9M +61.8%
Show all 28 →

Top Trims

  • No decreased positions.
Show all 0 →

New Positions

  • ROKU INC$40.1M
  • AES CORP$18.0M
  • TOPBUILD COR$13.2M
  • DOMINION ENERGY INC$10.2M
  • ELECTRONIC ARTS INC$8.1M
Show all 8 →

Exited Positions

  • CLEARWATER ANALYTICS HLDGS I$40.7M
  • STATE STR SPDR S&P 500 ETF T$3.3M
Show all 2 →
All Holdings

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 $60.4M 9.81% 385,076 SH
2 CHART INDS INC GTLS 16115Q308 $37.9M 6.15% 181,218 SH
3 NORFOLK SOUTHN CORP NSC 655844108 $37.2M 6.04% 118,385 SH
4 KENVUE INC KVUE 49177J102 $35.3M 5.73% 1,847,147 SH
5 PENUMBRA INC PEN 70975L107 $33.5M 5.44% 106,222 SH
6 WARNER BROS DISCOVERY INC WBD 934423104 $32.1M 5.22% 1,205,219 SH
7 UNIFIRST CORP MASS UNF 904708104 $28.3M 4.60% 107,060 SH
8 ROKU INC ROKU 77543R102 $23.1M 3.75% 167,458 SH
9 WARNER BROS DISCOVERY INC WBD 934423104 $22.4M 3.64% 841,509 SH
10 KENVUE INC KVUE 49177J102 $22.1M 3.59% 1,157,873 SH
11 CHART INDS INC GTLS 16115Q308 $21.8M 3.53% 104,181 SH
12 PENUMBRA INC PEN 70975L107 $20.5M 3.33% 65,055 SH
13 NORFOLK SOUTHN CORP NSC 655844108 $19.3M 3.13% 61,334 SH
14 UNIFIRST CORP MASS UNF 904708104 $16.9M 2.75% 64,088 SH
15 ROKU INC ROKU 77543R102 $16.9M 2.75% 122,542 SH
16 VANGUARD INDEX FDS VUG 922908736 $15.7M 2.54% 181,798 SH
17 QORVO INC QRVO 74736K101 $14.7M 2.39% 157,945 SH
18 REVOLUTION MEDICINES INC RVMD 76155X100 $12.6M 2.05% 67,470 SH
19 AES CORP AES 00130H105 $11.7M 1.90% 799,458 SH
20 ECHOSTAR CORP ECHO 278768106 $11.6M 1.89% 114,650 SH
21 TOPBUILD COR COR 89055F103 $8.7M 1.42% 24,640 SH
22 QORVO INC QRVO 74736K101 $8.6M 1.39% 91,939 SH
23 VANGUARD INDEX FDS VTV 922908744 $8.5M 1.38% 38,880 SH
24 REVOLUTION MEDICINES INC RVMD 76155X100 $7.5M 1.22% 40,174 SH
25 BERKSHIRE HATHAWAY INC DEL BRK.B 084670702 $7.5M 1.22% 15,000 SH
26 ECHOSTAR CORP ECHO 278768106 $7.4M 1.20% 72,778 SH
27 TXNM ENERGY INC TXNM 69349H107 $6.8M 1.11% 120,082 SH
28 AES CORP AES 00130H105 $6.3M 1.02% 427,209 SH
29 DOMINION ENERGY INC D 25746U109 $6.1M 1.00% 89,913 SH
30 ELECTRONIC ARTS INC EA 285512109 $4.8M 0.78% 23,482 SH
31 J P MORGAN EXCHANGE TRADED F BBJP 46641Q217 $4.5M 0.74% 60,343 SH
32 TOPBUILD COR COR 89055F103 $4.4M 0.72% 12,496 SH
33 TXNM ENERGY INC TXNM 69349H107 $4.4M 0.72% 77,936 SH
34 VANGUARD INTL EQUITY INDEX F VGK 922042874 $4.4M 0.71% 49,554 SH
35 ISHARES TR IEUR 46434V738 $4.1M 0.67% 55,000 SH
36 DOMINION ENERGY INC D 25746U109 $4.1M 0.67% 60,087 SH
37 ELECTRONIC ARTS INC EA 285512109 $3.3M 0.53% 15,930 SH
38 AMAZON COM INC AMZN 023135106 $2.3M 0.37% 9,500 SH
39 VIASAT INC VSAT 92552V100 $2.1M 0.34% 23,299 SH
40 ECHOSTAR CORP Call ECHO 278768106 $1.9M 0.30% 18,400 SH
41 VIASAT INC VSAT 92552V100 $1.6M 0.26% 17,695 SH
42 CONTROLADORA VUELA COMP DE A VLRS 21240E105 $1.2M 0.20% 130,158 SH
43 ECHOSTAR CORP Call ECHO 278768106 $1.2M 0.19% 11,600 SH
44 ISHARES TR IVE 464287408 $1.1M 0.18% 5,000 SH
45 MICROSOFT CORP MSFT 594918104 $1.1M 0.18% 3,000 SH
46 GOLDMAN SACHS GROUP INC GS 38141G104 $1.0M 0.16% 1,000 SH
47 APPLE INC AAPL 037833100 $868.1K 0.14% 3,000 SH
48 MORGAN STANLEY MS 617446448 $836.2K 0.14% 4,000 SH
49 CAPITAL ONE FINL CORP COF 14040H105 $769.0K 0.12% 3,833 SH
50 VISA INC V 92826C839 $686.2K 0.11% 2,000 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-08-14 $616.1M 60 0001172661-26-003467
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