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Prospector Partners LLC
Prospector Partners LLC is an investment management firm headquartered in Guilford, Connecticut. Founded in 1997 by John Gillespie and Jack Byrne, the firm specializes in long/short and long-only equity strategies for institutions, family offices, and accredited investors. The team includes experienced portfolio managers with a background in value investing and significant tenure managing institutional portfolios. The firm typically serves clients seeking value-oriented, fundamental analysis focused on balance sheets and credit quality. Prospector Partners has managed assets for over 25 years and maintains a strong reputation for disciplined investment and client focus.
Investment Strategy
Prospector Partners LLC employs a value-based investment philosophy inspired by legendary value investors like Jack Byrne. The firm's strategies focus on long/short and long-only equity investments, emphasizing companies with strong balance sheets and credit profiles. The portfolio management team leverages fundamental analysis, seeking undervalued stocks and aiming for capital preservation while generating attractive risk-adjusted returns over the long term. They prioritize thorough research and a disciplined process oriented toward clients’ interests, with significant personal capital invested alongside client assets.
Latest 13F Filing Activity
Prospector Partners LLC filed their most recent 13F report on Jun 30, 2025 disclosing 81 equity positions and 3 options positions with a total 13F market value of $875M. The fund increased holdings in ST Joe Co., Keurig DR Pepper Inc., Unum Group among other positions. Prospector Partners LLC reduced exposure to Citigroup Inc., Hess Corp., Henry Schein Inc. among others.
Top Holdings
Equity Positions (81)
| Ticker | Security | Weight | Market Value | Shares | Avg Cost | Price | Change (QoQ) |
|---|---|---|---|---|---|---|---|
| BERKSHIRE HATHAWAY INC DEL | 3.60% | $31.5M | 64,810 | $107.44 | $485.77 | -$3.0M | |
B BRO | BROWN & BROWN INC | 3.57% | $31.3M | 281,877 | $28.48 | $110.87 | -$4.0M |
G GL | GLOBE LIFE INC | 2.91% | $25.5M | 204,820 | $95.27 | $124.29 | -$2.5M |
A AJG | GALLAGHER ARTHUR J & CO | 2.84% | $24.9M | 77,663 | $102.15 | $320.12 | -$3.0M |
P PNC | PNC FINL SVCS GROUP INC | 2.83% | $24.7M | 132,672 | $157.05 | $186.42 | +$5.2M |
Options Positions (3)
Industry Allocation
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