Penn Street Capital Management LLC

Penn Street Capital Management LLC

Michael Sacks is the managing principal of Penn Street Capital Management LLC, a single-family office headquartered in Philadelphia. The firm's founding date is not publicly documented, but it has been active since at least the early 2010s. Sacks’ background includes roles in investment management, though the precise origin of the family wealth has not been publicly disclosed. The firm deploys capital across real estate (commercial and multi-family), private credit (direct lending and mezzanine debt), and select equity investments in private companies. Geographically, the focus is the Mid-Atlantic and Northeastern United States. Penn Street Capital co-invests alongside other family offices and institutional partners, though it does not raise external capital through commingled funds. Portfolio exposure includes properties in Philadelphia and suburban markets, as well as direct credit positions in middle-market companies. Team size and AUM are not publicly available. The firm does not maintain a public website or LinkedIn profile, consistent with its intentionally low profile. No additional offices or charitable foundations are confirmed in public records. Penn Street Capital's structural differentiator is its operational opacity — it functions as a pure direct-deployment vehicle with no public marketing, no website, and no external fund structure. This architecture allows Sacks to operate with full discretion, executing deals without the disclosure obligations of a registered investment adviser. It is a textbook example of the quiet family office model preferred by many Philadelphia-based capital allocators.