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Super Investors Birnam Oak Advisors, LP
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Birnam Oak Advisors, LP

Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.

Portfolio value
$616M
Positions
40
Quarter ended
June 30, 2026
Filed
August 14, 2026

Reported portfolio value by quarter (7 quarters reported)

$616M $206M
Q4 24 Q2 25 Q4 25 Q2 26

$206M in Q4 2024 → $616M now. Hover for any quarter.

Holdings

As reported for the quarter ended June 30, 2026. Activity is the change in share count since the prior quarter's filing.

Holding % of portfolio Activity Shares Value
IT Ishares Tr 9.8% Added 39% 385,076 $60.4M
CI Chart Inds Inc 9.7% Added 43% 285,399 $59.6M
Kenvue Inc 9.3% Added 113% 3,005,020 $57.4M
NS Norfolk Southn Corp 9.2% Added 18% 179,719 $56.5M
Warner Bros Discovery Inc 8.9% Added 67% 2,046,728 $54.6M
Penumbra Inc 8.8% Added 78% 171,277 $54.1M
UM Unifirst Corp Mass 7.3% Added 235% 171,148 $45.3M
Roku Inc 6.5% New 290,000 $40.1M
Qorvo Inc 3.8% Added 7.7% 249,884 $23.3M
Revolution Medicines Inc 3.3% Trimmed 32% 107,644 $20.2M
Echostar Corp 3.1% Added 28% 187,428 $19M
Aes Corp 2.9% New 1,226,667 $18M
VI Vanguard Index Fds 2.5% Added 571% 181,798 $15.7M
TC Topbuild Cor 2.1% New 37,136 $13.2M
Txnm Energy Inc 1.8% Added 35% 198,018 $11.2M
Dominion Energy Inc 1.7% New 150,000 $10.2M
VI Vanguard Index Fds 1.4% Added 18% 38,880 $8.47M
Electronic Arts Inc 1.3% New 39,412 $8.08M
BH Berkshire Hathaway Inc Del 1.2% Added 7.1% 15,000 $7.51M
JP J P Morgan Exchange Traded F 0.7% Added 9.7% 60,343 $4.54M
VI Vanguard Intl Equity Index F 0.7% Added 42% 49,554 $4.39M
IT Ishares Tr 0.7% Unchanged 55,000 $4.13M
Viasat Inc 0.6% New 40,994 $3.68M
Echostar Corp Call 0.5% New 30,000 $3.05M
Amazon Com Inc 0.4% Unchanged 9,500 $2.26M
CV Controladora Vuela Comp De A 0.2% Added 73% 130,158 $1.22M
Avis Budget Group Inc Put 0.2% New 8,000 $1.18M
IT Ishares Tr 0.2% Unchanged 5,000 $1.14M
Microsoft Corp 0.2% Unchanged 3,000 $1.12M
Goldman Sachs Group Inc 0.2% Unchanged 1,000 $1.01M
Apple Inc 0.1% New 3,000 $868K
Morgan Stanley 0.1% Unchanged 4,000 $836K
CO Capital One Finl Corp 0.1% Unchanged 3,833 $769K
Visa Inc 0.1% Unchanged 2,000 $686K
American Express Co 0.1% Added 100% 2,000 $677K
Jpmorgan Chase & Co 0.1% Unchanged 2,000 $655K
I Ishares Inc 0.1% Unchanged 4,000 $373K
CE Caesars Entertainment Inc Ne Call 0.0% Trimmed 64% 10,000 $302K
Nvidia Corporation 0.0% New 1,000 $200K
FH Full Hse Resorts Inc 0.0% Added 514% 61,375 $171K

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 6 quarters.

Q2 2026

quarter ended June 30, 2026 · filed August 14, 2026

Company Action Shares changed Value of change % of portfolio
SS State Str SPDR S&P 500 ETF T Exited −90,000 −$58.5M —
CA Clearwater Analytics Hldgs I Exited −1,719,139 −$40.7M —
Roku Inc New +290,000 +$40.1M 6.5%
UM Unifirst Corp Mass Added +120,020 +$31.7M 7.3%
Kenvue Inc Added +1,592,749 +$30.4M 9.3%
Penumbra Inc Added +75,287 +$23.8M 8.8%
Warner Bros Discovery Inc Added +818,952 +$21.8M 8.9%
CI Chart Inds Inc Added +86,459 +$18.1M 9.7%
Aes Corp New +1,226,667 +$18M 2.9%
IQ Invesco Qqq Tr Exited −30,000 −$17.3M —

Showing the 10 largest of 35 changes.

Q1 2026

quarter ended March 31, 2026 · filed May 12, 2026

Company Action Shares changed Value of change % of portfolio
SS State Str SPDR S&P 500 ETF T New +90,000 +$58.5M 13.3%
Cyberark Software Ltd Exited −101,581 −$45.3M —
CA Clearwater Analytics Hldgs I New +1,719,139 +$40.7M 9.2%
FC Frontier Communications Pare Exited −1,015,468 −$38.7M —
Warner Bros Discovery Inc New +1,227,776 +$33.7M 7.7%
Penumbra Inc New +95,990 +$31.5M 7.2%
Electronic Arts Inc Exited −150,972 −$30.8M —
Comerica Inc Exited −333,648 −$29M —
Dayforce Inc Exited −359,887 −$24.9M —
Kenvue Inc New +1,412,271 +$24.3M 5.5%

Showing the 10 largest of 46 changes.

Q4 2025

quarter ended December 31, 2025 · filed February 17, 2026

Company Action Shares changed Value of change % of portfolio
IG Interpublic Group Cos Inc Exited −1,362,621 −$38M —
Electronic Arts Inc New +150,972 +$30.8M 6.9%
Verona Pharma PLC Exited −277,604 −$29.6M —
Comerica Inc New +333,648 +$29M 6.5%
Dayforce Inc New +359,887 +$24.9M 5.6%
Kellanova Exited −237,491 −$19.5M —
Aes Corp New +1,280,832 +$18.4M 4.1%
Exact Sciences Corp New +177,379 +$18M 4.0%
AE Ark ETF Tr Exited −180,000 −$15.5M —
SA Spirit Aerosystems Hldgs Inc Exited −390,800 −$15.1M —

Showing the 10 largest of 30 changes.

Q3 2025

quarter ended September 30, 2025 · filed November 14, 2025

Company Action Shares changed Value of change % of portfolio
Hess Corp Exited −350,270 −$48.5M —
Cyberark Software Ltd New +94,184 +$45.5M 10.5%
Championx Corporation Exited −1,480,613 −$36.8M —
Verona Pharma PLC New +277,604 +$29.6M 6.8%
NS Norfolk Southn Corp New +96,100 +$28.9M 6.6%
Ansys Inc Exited −75,711 −$26.6M —
CI Chart Inds Inc New +118,223 +$23.7M 5.4%
Kellanova Trimmed −235,000 −$19.3M 4.5%
TG Triumph Group Inc New Exited −726,540 −$18.7M —
AE Ark ETF Tr New +180,000 +$15.5M 3.6%

Showing the 10 largest of 27 changes.

Q2 2025

quarter ended June 30, 2025 · filed August 11, 2025

Company Action Shares changed Value of change % of portfolio
Tesla Inc Exited −1,051,000 −$272M —
DF Discover Finl Svcs Exited −251,067 −$42.9M —
Kellanova New +472,491 +$37.6M 11.1%
Ansys Inc New +75,711 +$26.6M 7.9%
FC Frontier Communications Pare Added +526,510 +$19.2M 7.9%
Hess Corp Added +129,960 +$18M 14.3%
TG Triumph Group Inc New Added +681,000 +$17.5M 5.5%
Txnm Energy Inc New +269,000 +$15.2M 4.5%
IG Interpublic Group Cos Inc Added +526,610 +$12.9M 8.0%
SA Spirit Aerosystems Hldgs Inc Exited −344,000 −$11.9M —

Showing the 10 largest of 26 changes.

Q1 2025

quarter ended March 31, 2025 · filed May 14, 2025

Company Action Shares changed Value of change % of portfolio
Tesla Inc New +1,051,000 +$272M 49.3%
Championx Corporation Added +799,025 +$23.8M 7.7%
DF Discover Finl Svcs Added +128,880 +$22M 7.8%
Vestis Corporation Exited −1,407,240 −$21.4M —
Amedisys Inc Exited −174,383 −$15.8M —
Hess Corp Added +85,000 +$13.6M 6.4%
Hashicorp Inc Exited −359,000 −$12.3M —
SA Spirit Aerosystems Hldgs Inc New +344,000 +$11.9M 2.1%
Unitedhealth Group Inc New +20,000 +$10.5M 1.9%
Boeing Co New +52,000 +$8.87M 1.6%

Showing the 10 largest of 25 changes.

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