Harbour Island Capital Management

Philip DiGiacomo is the founder and portfolio manager with sole discretion over the partnership's portfolio. He has run the strategy since launching the firm in 2010. No additional named investment principals have been disclosed publicly.

The firm operates an event-driven and special-situations mandate, targeting mispriced securities around announced mergers, spin-offs, post-bankruptcy reorganizations, and other corporate catalysts. The portfolio is concentrated and typically long-biased across the capital structure, though equity positions in event-driven contexts have historically represented the core.

It is a sole-PM partnership with a deliberately small team and concentrated book, rather than a platform allocating risk across dozens of sector pods. This structure allows rapid position sizing in mid-cap situations where large multi-managers face deployment constraints, but it also concentrates key-person risk in the founder.

The firm has not publicly disclosed a co-investment program. Its strategy of concentrating on publicly traded event-driven securities typically does not require co-investment structures of the kind seen in private equity or growth equity.

In January 2022, Harbour Island was named alongside several other firms in SEC filings related to an industry-wide examination of SPAC-related event strategies and potential conflicts (per public record, 2022). No findings or charges were publicly reported against the firm in connection with that review.