PROSPECTOR PARTNERS LLC — 13F Holdings & Portfolio
CIK 1080380 · latest 13F-HR filed 2026-02-13
PROSPECTOR PARTNERS LLC manages $46.7M in 13F-reported U.S. long-equity assets across 16 reported positions as of its 2025-12-31 13F-HR filing. Its largest disclosed positions are XOM (11.97%), PGR (10.38%), MSFT (10.03%). Quarter over quarter (versus its 2025-09-30 filing) the fund opened 0 new positions and exited 74; 0 existing positions rose in reported value and 16 fell.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
Long-equity book
Distinct positions
Filed 2026-02-13
vs 2025-09-30
Portfolio charts
Latest quarter's book, what changed, and how the portfolio has evolved across filings.
Portfolio map
Q4 25Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.
Sector mix
% of 13F valueSectors from each company's SIC code; funds and ETFs grouped separately.
Biggest buys and sells
Q3 25 → Q4 25Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.
13F assets and positions
2 quartersTotal reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.
Top positions over time
reported valueThe eight largest current positions, valued at each quarter end.
Concentration
top 10 = 86.6%Cumulative share of the portfolio held in the largest N positions.
As of the firm’s regulatory filing dated Jun 18, 2025.
GUILFORD, CT 06437
| Name | Title / Status | Ownership | Type |
|---|---|---|---|
| GILLESPIE, JOHN, DAVIES Control | MANAGING MEMBER since Apr 1997 | 50–75% | Individual |
| KISH, JASON, A Control | PORTFOLIO MANAGER since May 2013 | Less than 5% | Individual |
| LABBE, STEVEN, ROGER Control | PORTFOLIO MANAGER since Jul 2020 | Less than 5% | Individual |
| OBRIEN, KEVIN, RAYMOND Control | PORTFOLIO MANAGER since Apr 2003 | 25–50% | Individual |
| PERUGINI, PETER, NICHOLAS Control | CFO, CCO since Jun 1997 | Less than 5% | Individual |
Ownership & leadership changes · 5 filings with changes since Mar 29, 2012
From the firm’s regulatory filings, newest first. Dates are filing dates: a filing that no longer lists someone does not say when they left.
- ChangedPERUGINI, PETER, NICHOLAS · title CHIEF FINANCIAL OFFICER, CHIEF COMPLIANCE OFFICER → CFO, CCO
- No longer listedJUST, KIM, S · CHIEF COMPLIANCE OFFICER · Less than 5% · control person · listed since Jul 2006
- ChangedPERUGINI, PETER, NICHOLAS · title CHIEF FINANCIAL OFFICER → CHIEF FINANCIAL OFFICER, CHIEF COMPLIANCE OFFICER
- AddedLABBE, STEVEN, ROGER · PORTFOLIO MANAGER · Less than 5% · control person
- No longer listedHOWARD, RICHARD, PAGE · PORTFOLIO MANAGER · Less than 5% · control person · listed since Aug 2005
- AddedKISH, JASON, A · PORTFOLIO MANAGER · Less than 5% · control person
- ListedGILLESPIE, JOHN, DAVIES · MANAGING MEMBER · 50–75% · control person
- ListedHOWARD, RICHARD, PAGE · PORTFOLIO MANAGER · Less than 5% · control person
- ListedJUST, KIM, S · CHIEF COMPLIANCE OFFICER · Less than 5% · control person
- ListedOBRIEN, KEVIN, RAYMOND · PORTFOLIO MANAGER · 25–50% · control person
- ListedPERUGINI, PETER, NICHOLAS · CHIEF FINANCIAL OFFICER · Less than 5% · control person
Quarter-over-quarter changes
Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.
Top Trims
- BERKSHIRE HATHAWAY INC DEL-$28.1M -86.1%
- BROWN & BROWN INC-$25.5M -96.4%
- PRIMERICA INC-$17.5M -90.3%
- AMERIS BANCORP-$16.3M -94.3%
- ALPHABET INC-$13.6M -82.5%
Exited Positions
- GLOBE LIFE INC$28.4M
- PNC FINL SVCS GROUP INC$25.5M
- EATON CORP PLC$23.2M
- SOUTHSTATE BK CORP$21.5M
- LITTELFUSE INC$21.2M
PROSPECTOR PARTNERS LLC Holdings (2025-12-31)
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | EXXON MOBIL CORP | XOM | 30231G102 | $5.6M | 11.97% | 46,459 | SH |
| 2 | PROGRESSIVE CORP | PGR | 743315103 | $4.8M | 10.38% | 21,290 | SH |
| 3 | MICROSOFT CORP | MSFT | 594918104 | $4.7M | 10.03% | 9,685 | SH |
| 4 | BERKSHIRE HATHAWAY INC DEL | BRK.B | 084670702 | $4.5M | 9.69% | 9,000 | SH |
| 5 | PJT PARTNERS INC | PJT | 69343T107 | $4.5M | 9.60% | 26,800 | SH |
| 6 | RTX CORPORATION | RTX | 75513E101 | $4.2M | 9.10% | 23,160 | SH |
| 7 | HOME DEPOT INC | HD | 437076102 | $3.7M | 7.99% | 10,849 | SH |
| 8 | AGNICO EAGLE MINES LTD | AEM | 008474108 | $3.6M | 7.66% | 21,100 | SH |
| 9 | ALPHABET INC | GOOGL | 02079K305 | $2.9M | 6.19% | 9,240 | SH |
| 10 | PRIMERICA INC | PRI | 74164M108 | $1.9M | 4.01% | 7,245 | SH |
| 11 | CBOE GLOBAL MKTS INC | CBOE | 12503M108 | $1.4M | 3.10% | 5,775 | SH |
| 12 | CAPITAL CITY BK GROUP INC | CCBG | 139674105 | $1.0M | 2.23% | 24,510 | SH |
| 13 | WHITE MTNS INS GROUP LTD | WTM | G9618E107 | $1.0M | 2.18% | 490 | SH |
| 14 | AMERIS BANCORP | ABCB | 03076K108 | $986.4K | 2.11% | 13,281 | SH |
| 15 | BROWN & BROWN INC | BRO | 115236101 | $946.5K | 2.03% | 11,876 | SH |
| 16 | GALLAGHER ARTHUR J & CO | AJG | 363576109 | $807.4K | 1.73% | 3,120 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2025-12-31 | 2026-02-13 | $46.7M | 16 | 0001398344-26-003043 |
| 2025-09-30 | 2025-11-07 | $836.9M | 92 | 0001398344-25-020530 |