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Penbrook Management LLC
Penbrook Management LLC is an SEC-registered investment adviser headquartered in New York, NY. The firm was founded in 2006 and operates with a small team of approximately 4 employees, all of whom are investing professionals. Penbrook serves institutional and high-net-worth clients, offering discretionary asset management services and investment advice. The firm specializes in managing pooled investment vehicles and separately managed accounts.
Investment Strategy
Penbrook Management LLC employs a long-term, fundamental research-driven investment approach focused on publicly traded equities. The firm manages portfolios with an emphasis on capital appreciation and risk management, seeking undervalued or high-quality growth companies. Penbrook crafts diversified portfolios across sectors and geographies and serves institutional and high-net-worth investors through both separately managed accounts and pooled investment vehicles. Trading and allocation are conducted with a strong adherence to internal research, valuation metrics, and compliance requirements.
Latest 13F Filing Activity
Penbrook Management LLC filed their most recent 13F report on Sep 30, 2025 disclosing 100 equity positions with a total 13F market value of $143M. The fund increased holdings in Planet Labs PBC Com CL A, Alkami Technology Inc. Com, Aehr Test SYS Com among other positions. Penbrook Management LLC reduced exposure to Novo-nordisk A S Adr, MR Cooper Group Inc., Thomson Reuters Corp. Com among others.
Top Holdings
Equity Positions (100)
| Ticker | Security | Weight | Market Value | Shares | Avg Cost | Price | Change (QoQ) |
|---|---|---|---|---|---|---|---|
N NVO | NOVO-NORDISK A S ADR | 12.07% | $17.3M | 311,600 | $29.00 | $55.49 | -$4.2M |
M MSFT | MICROSOFT CORP COM | 8.79% | $12.6M | 24,305 | $90.23 | $517.95 | +$163.5K |
A AMZN | AMAZON COM INC COM | 7.93% | $11.4M | 51,740 | $71.70 | $219.57 | +$93.8K |
M MCO | MOODYS CORP COM | 4.54% | $6.5M | 13,650 | $165.96 | $476.48 | -$342.8K |
| ALPHABET INC CAP STK CL A | 3.93% | $5.6M | 23,170 | $54.64 | $243.10 | +$1.5M |
Industry Allocation
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