BO
Birnam Oak Advisors, LP
13F filer · CIK 0001997245Reported Aug 14, 2026
Net buyer this quarter
13F portfolio value$616MU.S. long equity reported on 13F
Positions298 new · 2 closed
Net flow last quarter+$185MBuys minus sells
Top 10 positions weight69.8%Concentration
Holdings
13F · last 4 quarters freeScroll for earlier quarters
| Company | Value | % of portfolio | % of company | POSITION CHANGE qoq % | First reported |
|---|---|---|---|---|---|
| Q2 2026Reported Aug 14, 202629 positions | |||||
| CIGTLSChart Industries Inc | $59.6M | 9.68% | 0.60% | +43.5% | Q3 2025 |
| $57.4M | 9.32% | 0.16% | +112.8% | Q1 2026 | |
| $56.5M | 9.18% | 0.08% | +18.4% | Q3 2025 | |
| $54.6M | 8.86% | 0.08% | +66.7% | Q1 2026 | |
| $54.1M | 8.78% | 0.44% | +78.4% | Q1 2026 | |
| $45.3M | 7.35% | 0.86% | +234.7% | Q1 2026 | |
| $40.1M | 6.50% | 0.20% | New | Q2 2026 | |
| $23.3M | 3.78% | 0.28% | +7.7% | Q1 2026 | |
| $20.2M | 3.27% | 0.05% | -32.5% | Q1 2026 | |
| $19M | 3.09% | 0.39% | +28.4% | Q3 2025 | |
| $18M | 2.92% | 0.17% | Not reported | Q4 2025 | |
| TBLDTopBuild Corp | $13.2M | 2.14% | 0.13% | New | Q2 2026 |
| $11.2M | 1.82% | 0.18% | +35.0% | Q2 2025 | |
| $10.2M | 1.66% | 0.02% | New | Q2 2026 | |
| EAEAElectronic Arts Inc. | $8.08M | 1.31% | Not reported | Not reported | Q4 2025 |
| $7.51M | 1.22% | Not reported | +7.1% | Q4 2024 | |
| $3.68M | 0.60% | 0.03% | New | Q2 2026 | |
| $2.26M | 0.37% | 0.00% | Not reported | Q4 2024 | |
| $1.22M | 0.20% | Not reported | +73.2% | Q1 2026 | |
| $1.12M | 0.18% | 0.00% | Not reported | Q4 2024 | |
| $1.01M | 0.16% | 0.00% | Not reported | Q1 2026 | |
| $868K | 0.14% | 0.00% | New | Q2 2026 | |
| $836K | 0.14% | 0.00% | Not reported | Q1 2026 | |
| $769K | 0.12% | 0.00% | Not reported | Q2 2025 | |
| $686K | 0.11% | 0.00% | Not reported | Q1 2026 | |
| $677K | 0.11% | 0.00% | +100.0% | Q1 2026 | |
| $655K | 0.11% | 0.00% | Not reported | Q1 2026 | |
| $200K | 0.03% | 0.00% | New | Q2 2026 | |
| $171K | 0.03% | 0.17% | +513.8% | Q1 2026 | |
| Q1 2026Reported May 12, 202623 positions | |||||
| $43.6M | 9.89% | 0.07% | +23.9% | Q3 2025 | |
| CIGTLSChart Industries Inc | $41.1M | 9.33% | 0.42% | +65.4% | Q3 2025 |
| CACWANClearwater Analytics Holdings, Inc. | $40.7M | 9.23% | Not reported | New | Q1 2026 |
| $33.7M | 7.65% | 0.05% | New | Q1 2026 | |
| $31.5M | 7.15% | 0.24% | New | Q1 2026 | |
| $24.3M | 5.53% | 0.07% | New | Q1 2026 | |
| $18M | 4.08% | 0.26% | New | Q1 2026 | |
| $17.1M | 3.88% | 0.31% | +5.8% | Q3 2025 | |
| $15.5M | 3.52% | 0.08% | New | Q1 2026 | |
| $12.9M | 2.92% | 0.26% | New | Q1 2026 | |
| $8.57M | 1.95% | 0.13% | -61.4% | Q2 2025 | |
| $6.71M | 1.52% | Not reported | -12.5% | Q4 2024 | |
| $3.25M | 0.74% | Not reported | New | Q1 2026 | |
| $1.98M | 0.45% | 0.00% | -24.0% | Q4 2024 | |
| $1.11M | 0.25% | 0.00% | -50.0% | Q4 2024 | |
| $846K | 0.19% | 0.00% | New | Q1 2026 | |
| $699K | 0.16% | 0.00% | -80.7% | Q2 2025 | |
| $658K | 0.15% | 0.00% | New | Q1 2026 | |
| $604K | 0.14% | 0.00% | New | Q1 2026 | |
| $588K | 0.13% | 0.00% | New | Q1 2026 | |
| $544K | 0.12% | Not reported | New | Q1 2026 | |
| $302K | 0.07% | 0.00% | New | Q1 2026 | |
| $22.5K | 0.01% | 0.03% | New | Q1 2026 | |
| Q4 2025Reported Feb 17, 202620 positions | |||||
| FCFYBRFrontier Communications Parent, Inc. | $38.7M | 8.66% | Not reported | +0.4% | Q1 2025 |
| $35.4M | 7.92% | 0.05% | +27.5% | Q3 2025 | |
| EAEAElectronic Arts Inc. | $30.8M | 6.91% | Not reported | New | Q4 2025 |
| CCMAComerica Inc | $29M | 6.50% | 0.26% | New | Q4 2025 |
| DDAYDayforce, Inc. | $24.9M | 5.57% | 0.22% | New | Q4 2025 |
| CIGTLSChart Industries Inc | $24.8M | 5.56% | 0.27% | +1.7% | Q3 2025 |
| $22.4M | 5.01% | 0.35% | -2.6% | Q2 2025 | |
| $18.4M | 4.11% | 0.18% | New | Q4 2025 | |
| $18M | 4.03% | 0.07% | New | Q4 2025 | |
| $15M | 3.36% | 0.29% | -28.5% | Q3 2025 | |
| CTCDTXCidara Therapeutics, Inc. | $9.15M | 2.05% | 0.13% | New | Q4 2025 |
| ATATXSAstria Therapeutics, Inc. | $9.03M | 2.02% | 1.21% | New | Q4 2025 |
| CFCADECadence Financial Corp | $9.01M | 2.02% | Not reported | New | Q4 2025 |
| $8.04M | 1.80% | Not reported | Not reported | Q4 2024 | |
| ARHOUSAnywhere Real Estate Inc. | $7.19M | 1.61% | 0.45% | +70.9% | Q3 2025 |
| $4.81M | 1.08% | 0.00% | Not reported | Q2 2025 | |
| $3.59M | 0.80% | 0.02% | Not reported | Q4 2024 | |
| $2.9M | 0.65% | 0.00% | Not reported | Q4 2024 | |
| $2.89M | 0.65% | 0.00% | Not reported | Q4 2024 | |
| $738K | 0.17% | 0.00% | New | Q4 2025 | |
| Q3 2025Reported Nov 14, 202518 positions | |||||
| ICIPGInterpublic Group of Companies, Inc. | $38M | 8.73% | 0.37% | +23.4% | Q4 2024 |
| FCFYBRFrontier Communications Parent, Inc. | $37.8M | 8.68% | Not reported | +37.4% | Q1 2025 |
| VPVRNAVerona Pharma plc | $29.6M | 6.80% | 0.04% | New | Q3 2025 |
| $28.9M | 6.63% | 0.04% | New | Q3 2025 | |
| CIGTLSChart Industries Inc | $23.7M | 5.43% | 0.26% | New | Q3 2025 |
| $22M | 5.06% | 0.36% | +44.9% | Q2 2025 | |
| SASPRSpirit AeroSystems Holdings, Inc. | $15.1M | 3.46% | 0.33% | Not reported | Q1 2025 |
| $14.7M | 3.38% | 0.40% | New | Q3 2025 | |
| $11.6M | 2.66% | 0.21% | New | Q3 2025 | |
| SSCSSteelcase Inc | $10.7M | 2.47% | 0.54% | New | Q3 2025 |
| CBCOOPCooperative Bankshares Inc | $9.09M | 2.09% | Not reported | New | Q3 2025 |
| $8.04M | 1.85% | Not reported | +6.7% | Q4 2024 | |
| $4.22M | 0.97% | 0.00% | Not reported | Q2 2025 | |
| ARHOUSAnywhere Real Estate Inc. | $3.14M | 0.72% | 0.27% | New | Q3 2025 |
| $3.11M | 0.71% | 0.00% | Not reported | Q4 2024 | |
| $3.03M | 0.69% | 0.01% | Not reported | Q4 2024 | |
| $2.74M | 0.63% | 0.00% | Not reported | Q4 2024 | |
| $690K | 0.16% | 0.03% | New | Q3 2025 | |
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