Long-term investor
Penbrook Management LLC @penbrookmanagementllc
Institutional investment manager. Holdings disclosed quarterly to the SEC on Form 13F (CIK 0001381055).
Record
- Tracked since 2025-06-30 (474 days), 155 trades recorded
- Returns: week n/a · month n/a · 90 days -8.0% · 6 months +6.7% · 1 year +15.4% · all +15.4%
- Max drawdown n/a · data quality Good
- Source: SEC 13F Filings (live) (SEC EDGAR; typical delay 45 days)
Open positions
- TRGP · 10.6% · long · since 2025-09-30
- AMZN · 7.6% · long · since 2025-09-30
- NVO · 7.0% · long · since 2025-09-30
- MSFT · 6.6% · long · since 2025-09-30
- 02079K305 · 4.7% · long · since 2025-09-30
- 02079K107 · 4.5% · long · since 2025-09-30
- MCO · 3.6% · long · since 2025-09-30
- CYRX · 2.1% · long · since 2025-09-30
- M0854Q105 · 1.9% · long · since 2026-06-30
- 811927102 · 1.9% · long · since 2026-06-30
- PLAB · 1.6% · long · since 2025-09-30
- MGNI · 1.6% · long · since 2025-09-30