# EDGAR Filing Document

**Accession Number:** 0001080380
**File Stem:** 0001398344-23-003489
**Filing Date:** 2023-2
**Character Count:** 14888
**Document Hash:** 7ac115658aead7f9dac5e8d87c4c3c15
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001398344-23-003489.hdr.sgml**: 20230215

**ACCESSION NUMBER**: 0001398344-23-003489

**CONFORMED SUBMISSION TYPE**: 13F-HR

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20221231

**FILED AS OF DATE**: 20230215

**DATE AS OF CHANGE**: 20230214

**EFFECTIVENESS DATE**: 20230215

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** PROSPECTOR PARTNERS LLC
- **CENTRAL INDEX KEY:** 0001080380
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 13F-HR
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 028-04685
- **FILM NUMBER:** 23633144

**BUSINESS ADDRESS:**
- **STREET 1:** 370 CHURCH STREET
- **CITY:** GUILFORD
- **STATE:** CT
- **ZIP:** 06437
- **BUSINESS PHONE:** (203) 458-1500

**MAIL ADDRESS:**
- **STREET 1:** 370 CHURCH STREET
- **CITY:** GUILFORD
- **STATE:** CT
- **ZIP:** 06437

### FORM 13F COVER PAGE

**Report for the Calendar Year or Quarter Ended:** 12-31-2022

**Check here if Amendment** [ ] **Amendment Number:** 

**This Amendment (Check only one.):** [ ] is a restatement.

[ ] adds new holdings entries.

**Institutional Investment Manager Filing this Report:**

**Name:** PROSPECTOR PARTNERS LLC<br>**Address:** 370 CHURCH STREET<br>GUILFORD, CT 06437

**Form 13F File Number:** 028-04685

**CRD Number (if applicable):** 000123546

**SEC File Number (if applicable):** 801-64500

The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form.

**Person Signing this Report on Behalf of Reporting Manager:**

**Name:** John D. Gillespie<br>**Title:** Managing Member<br>**Phone:** 203-458-1500

**Signature, Place, and Date of Signing:**

/s/ John D. Gillespie  GUILFORD, CT  02-13-2023<br>[Signature]  [City, State]  [Date]

**Report Type (Check only one.):**

[x] **13F HOLDINGS REPORT.** (Check here if all holdings of this reporting manager are reported in this report.)

[ ] **13F NOTICE.** (Check here if no holdings are reported in this report, and all holdings are reported by other reporting manager(s).)

[ ] **13F COMBINATION REPORT.** (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).)

### Form 13F Summary Page

**Report Summary:**

**Number of Other Included Managers:** 1

**Form 13F Information Table Entry Total:** 111

**Form 13F Information Table Value Total:** $731243188

      (round to nearest dollar)

**List of Other Included Managers:**

Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report.

[If there are no entries in this list, state “NONE” and omit the column headings and list entries.]

| No.   | Name                  | Form 13F File Number   |
|:---|:---|:---|
|  | PROSPECTOR FUNDS INC. | 028-15501              |

### FORM 13F INFORMATION TABLE

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| NAME OF ISSUER | TITLE OF CLASS | CUSIP | FIGI | VALUE (x$1000) | SHRS OR PRN AMT | SH/PRN | PUT/CALL | INVESTMENT DISCRETION | OTHER MANAGER | VOTING AUTHORITY | VOTING AUTHORITY | VOTING AUTHORITY |
| NAME OF ISSUER | TITLE OF CLASS | CUSIP | FIGI | VALUE (x$1000) | SHRS OR PRN AMT | SH/PRN | PUT/CALL | INVESTMENT DISCRETION | OTHER MANAGER | SOLE | SHARED | NONE |
| ABBOTT LABS | COM | 002824100 |  | 2948959 | 26860 | SH |  | SOLE | 1 | 26860 | 0 | 0 |
| ABRDN PLATINUM ETF TRUST | PHYSCL PLATM SHS | 003260106 |  | 7521453 | 75760 | SH |  | SOLE | 1 | 75760 | 0 | 0 |
| AGNICO EAGLE MINES LTD | COM | 008474108 |  | 3187611 | 61312 | SH |  | SOLE | 1 | 61312 | 0 | 0 |
| AKAMAI TECHNOLOGIES INC | NOTE 0.125% 5/0 | 00971TAJ0 |  | 630000 | 600000 | PRN |  | SOLE | 1 | 600000 | 0 | 0 |
| AKAMAI TECHNOLOGIES INC | NOTE 0.375% 9/0 | 00971TAL5 |  | 288900 | 300000 | PRN |  | SOLE | 1 | 300000 | 0 | 0 |
| ALPHABET INC | CAP STK CL A | 02079K305 |  | 1982969 | 22475 | SH |  | SOLE | 1 | 22475 | 0 | 0 |
| ALPHABET INC | CAP STK CL C | 02079K107 |  | 3540327 | 39900 | SH |  | SOLE | 1 | 39900 | 0 | 0 |
| A-MARK PRECIOUS METALS INC | COM | 00181T107 |  | 1495404 | 43058 | SH |  | SOLE | 1 | 43058 | 0 | 0 |
| GALLAGHER ARTHUR J  CO | COM | 363576109 |  | 20998265 | 111373 | SH |  | SOLE | 1 | 111373 | 0 | 0 |
| ASTRAZENECA PLC | SPONSORED ADR | 046353108 |  | 399003 | 5885 | SH |  | SOLE | 1 | 5885 | 0 | 0 |
| AXALTA COATING SYS LTD | COM | G0750C108 |  | 6729174 | 264200 | SH |  | SOLE | 1 | 264200 | 0 | 0 |
| BANK OF NT BUTTERFIELD L | SHS NEW | G0772R208 |  | 4135243 | 138720 | SH |  | SOLE | 1 | 138720 | 0 | 0 |
| BERKSHIRE HATHAWAY INC DEL | CL B NEW | 084670702 |  | 44830657 | 145130 | SH |  | SOLE | 1 | 145130 | 0 | 0 |
| BIOMARIN PHARMACEUTICAL INC | NOTE 0.599% 8/0 | 09061GAH4 |  | 1061300 | 1000000 | PRN |  | SOLE | 1 | 1000000 | 0 | 0 |
| BROWN  BROWN INC | COM | 115236101 |  | 19065694 | 334662 | SH |  | SOLE | 1 | 334662 | 0 | 0 |
| CAMBRIDGE BANCORP | COM | 132152109 |  | 1504632 | 18115 | SH |  | SOLE |  | 18115 | 0 | 0 |
| CARRIER GLOBAL CORPORATION | COM | 14448C104 |  | 10622906 | 257525 | SH |  | SOLE | 1 | 257525 | 0 | 0 |
| CBOE GLOBAL MKTS INC | COM | 12503M108 |  | 9870725 | 78670 | SH |  | SOLE | 1 | 78670 | 0 | 0 |
| CHURCH  DWIGHT CO INC | COM | 171340102 |  | 12432400 | 154229 | SH |  | SOLE | 1 | 154229 | 0 | 0 |
| CIGNA CORP NEW | COM | 125523100 |  | 12972955 | 39153 | SH |  | SOLE | 1 | 39153 | 0 | 0 |
| CITIGROUP INC | COM NEW | 172967424 |  | 3990869 | 88235 | SH |  | SOLE | 1 | 88235 | 0 | 0 |
| CNB FINL CORP PA | COM | 126128107 |  | 253078 | 10638 | SH |  | SOLE |  | 10638 | 0 | 0 |
| COLGATE PALMOLIVE CO | COM | 194162103 |  | 4313753 | 54750 | SH |  | SOLE | 1 | 54750 | 0 | 0 |
| COMERICA INC | COM | 200340107 |  | 10226379 | 152975 | SH |  | SOLE | 1 | 152975 | 0 | 0 |
| CURTISS WRIGHT CORP | COM | 231561101 |  | 11258466 | 67420 | SH |  | SOLE | 1 | 67420 | 0 | 0 |
| DARDEN RESTAURANTS INC | COM | 237194105 |  | 11927504 | 86225 | SH |  | SOLE | 1 | 86225 | 0 | 0 |
| DEVON ENERGY CORP NEW | COM | 25179M103 |  | 2794092 | 45425 | SH |  | SOLE | 1 | 45425 | 0 | 0 |
| DIAMOND HILL INVT GROUP INC | COM NEW | 25264R207 |  | 2192487 | 11850 | SH |  | SOLE | 1 | 11850 | 0 | 0 |
| DARDEN RESTAURANTS INC | COM | 237194105 |  | 1383300 | 10000 | SH | Call | SOLE |  | 10000 | 0 | 0 |
| EATON CORP PLC | SHS | G29183103 |  | 8886509 | 56620 | SH |  | SOLE | 1 | 56620 | 0 | 0 |
| EBAY INC. | COM | 278642103 |  | 6074318 | 146475 | SH |  | SOLE | 1 | 146475 | 0 | 0 |
| EATON CORP PLC | SHS | G29183103 |  | 2118825 | 13500 | SH | Call | SOLE |  | 13500 | 0 | 0 |
| EVEREST RE GROUP LTD | COM | G3223R108 |  | 12518693 | 37790 | SH |  | SOLE | 1 | 37790 | 0 | 0 |
| EVERTEC INC | COM | 30040P103 |  | 484081 | 14950 | SH |  | SOLE |  | 14950 | 0 | 0 |
| EXPEDIA GROUP INC | COM NEW | 30212P303 |  | 4393140 | 50150 | SH |  | SOLE | 1 | 50150 | 0 | 0 |
| EXXON MOBIL CORP | COM | 30231G102 |  | 1136090 | 10300 | SH |  | SOLE |  | 10300 | 0 | 0 |
| FARO TECHNOLOGIES INC | COM | 311642102 |  | 294100 | 10000 | SH | Call | SOLE |  | 10000 | 0 | 0 |
| FARO TECHNOLOGIES INC | COM | 311642102 |  | 2314567 | 78700 | SH |  | SOLE | 1 | 78700 | 0 | 0 |
| FEDERATED HERMES INC | CL B | 314211103 |  | 18755604 | 516541 | SH |  | SOLE | 1 | 516541 | 0 | 0 |
| FIDELITY NATL INFORMATION SV | COM | 31620M106 |  | 6972402 | 102762 | SH |  | SOLE | 1 | 102762 | 0 | 0 |
| FIRST AMERN FINL CORP | COM | 31847r102 |  | 317966 | 6075 | SH |  | SOLE | 1 | 6075 | 0 | 0 |
| FIRST BANCORP P R | COM NEW | 318672706 |  | 7699734 | 605325 | SH |  | SOLE | 1 | 605325 | 0 | 0 |
| FORTUNE BRANDS INNOVATIONS I | COM | 34964C106 |  | 1541970 | 27000 | SH |  | SOLE | 1 | 27000 | 0 | 0 |
| FOUR CORNERS PPTY TR INC | COM | 35086T109 |  | 432201 | 16668 | SH |  | SOLE | 1 | 16668 | 0 | 0 |
| GENERAL DYNAMICS CORP | COM | 369550108 |  | 7181544 | 28945 | SH |  | SOLE |  | 28945 | 0 | 0 |
| GLOBE LIFE INC | COM | 37959E102 |  | 24933357 | 206830 | SH |  | SOLE | 1 | 206830 | 0 | 0 |
| HARBORONE BANCORP INC NEW | COM NEW | 41165Y100 |  | 2425230 | 174477 | SH |  | SOLE | 1 | 174477 | 0 | 0 |
| HENRY SCHEIN INC | COM | 806407102 |  | 3418436 | 42800 | SH |  | SOLE | 1 | 42800 | 0 | 0 |
| HESS CORP | COM | 42809H107 |  | 8051831 | 56775 | SH |  | SOLE | 1 | 56775 | 0 | 0 |
| HOME DEPOT INC | COM | 437076102 |  | 9028542 | 28584 | SH |  | SOLE | 1 | 28584 | 0 | 0 |
| HOSTESS BRANDS INC | CL A | 44109J106 |  | 2760681 | 123025 | SH |  | SOLE | 1 | 123025 | 0 | 0 |
| JOHNSON  JOHNSON | COM | 478160104 |  | 7151499 | 40484 | SH |  | SOLE |  | 40484 | 0 | 0 |
| KAMAN CORP | NOTE 3.250% 5/0 | 483548AF0 |  | 929500 | 1000000 | PRN |  | SOLE | 1 | 1000000 | 0 | 0 |
| KEYCORP | COM | 493267108 |  | 10648411 | 611275 | SH |  | SOLE | 1 | 611275 | 0 | 0 |
| LEIDOS HOLDINGS INC | COM | 525327102 |  | 13718143 | 130413 | SH |  | SOLE | 1 | 130413 | 0 | 0 |
| LIGAND PHARMACEUTICALS INC | NOTE 0.750% 5/1 | 53220KAF5 |  | 389250 | 400000 | PRN |  | SOLE | 1 | 400000 | 0 | 0 |
| LITTELFUSE INC | COM | 537008104 |  | 11850063 | 53815 | SH |  | SOLE | 1 | 53815 | 0 | 0 |
| LOUISIANA PAC CORP | COM | 546347105 |  | 264624 | 4470 | SH |  | SOLE | 1 | 4470 | 0 | 0 |
| MANCHESTER UTD PLC NEW | ORD CL A | G5784H106 |  | 923285 | 39575 | SH |  | SOLE |  | 39575 | 0 | 0 |
| MANCHESTER UTD PLC NEW | ORD CL A | G5784H106 |  | 438604 | 18800 | SH | Put | SOLE |  | 18800 | 0 | 0 |
| MARKEL CORP | COM | 570535104 |  | 8729689 | 6626 | SH |  | SOLE | 1 | 6626 | 0 | 0 |
| MARSH  MCLENNAN COS INC | COM | 571748102 |  | 7219892 | 43630 | SH |  | SOLE | 1 | 43630 | 0 | 0 |
| MEDTRONIC PLC | SHS | G5960L103 |  | 12715381 | 163605 | SH |  | SOLE | 1 | 163605 | 0 | 0 |
| MERCK  CO INC | COM | 58933Y105 |  | 19671657 | 177302 | SH |  | SOLE | 1 | 177302 | 0 | 0 |
| MICROSOFT CORP | COM | 594918104 |  | 4992333 | 20817 | SH |  | SOLE | 1 | 20817 | 0 | 0 |
| MID PENN BANCORP INC | COM | 59540G107 |  | 512487 | 17100 | SH |  | SOLE |  | 17100 | 0 | 0 |
| MONDELEZ INTL INC | CL A | 609207105 |  | 12406298 | 186141 | SH |  | SOLE | 1 | 186141 | 0 | 0 |
| MOOG INC | CL A | 615394202 |  | 4352896 | 49600 | SH |  | SOLE | 1 | 49600 | 0 | 0 |
| NEWMONT CORP | COM | 651639106 |  | 4639524 | 98295 | SH |  | SOLE | 1 | 98295 | 0 | 0 |
| NOODLES  CO | COM CL A | 65540B105 |  | 3907963 | 711833 | SH |  | SOLE | 1 | 711833 | 0 | 0 |
| NUVASIVE INC | COM | 670704105 |  | 3534268 | 85700 | SH |  | SOLE | 1 | 85700 | 0 | 0 |
| NUVASIVE INC | COM | 670704105 |  | 525600 | 600000 | PRN |  | SOLE | 1 | 600000 | 0 | 0 |
| ORACLE CORP | COM | 68389X105 |  | 5754986 | 70406 | SH |  | SOLE | 1 | 70406 | 0 | 0 |
| ORIGIN BANCORP INC | COM | 68621T102 |  | 3396585 | 92550 | SH |  | SOLE | 1 | 92550 | 0 | 0 |
| OTIS WORLDWIDE CORP | COM | 68902V107 |  | 9155614 | 116915 | SH |  | SOLE | 1 | 116915 | 0 | 0 |
| PALO ALTO NETWORKS INC | NOTE 0.750% 7/0 | 697435AD7 |  | 632000 | 400000 | PRN |  | SOLE | 1 | 400000 | 0 | 0 |
| PAYCHEX INC | COM | 704326107 |  | 3807702 | 32950 | SH |  | SOLE | 1 | 32950 | 0 | 0 |
| PAYPAL HLDGS INC | COM | 70450y103 |  | 3130119 | 43950 | SH |  | SOLE | 1 | 43950 | 0 | 0 |
| PENTAIR PLC | SHS | G7S00T104 |  | 8394842 | 186635 | SH |  | SOLE | 1 | 186635 | 0 | 0 |
| PFIZER INC | COM | 717081103 |  | 10458084 | 204100 | SH |  | SOLE | 1 | 204100 | 0 | 0 |
| PINNACLE FINL PARTNERS INC | COM | 72346Q104 |  | 9070038 | 123570 | SH |  | SOLE | 1 | 123570 | 0 | 0 |
| PIONEER NAT RES CO | COM | 723787107 |  | 18027051 | 78931 | SH |  | SOLE | 1 | 78931 | 0 | 0 |
| PJT PARTNERS INC | COM CL A | 69343T107 |  | 4178223 | 56700 | SH |  | SOLE |  | 56700 | 0 | 0 |
| PPG INDS INC | COM | 693506107 |  | 11661379 | 92742 | SH |  | SOLE | 1 | 92742 | 0 | 0 |
| PRIMERICA INC | COM | 74164M108 |  | 12255375 | 86415 | SH |  | SOLE | 1 | 86415 | 0 | 0 |
| PROCTER AND GAMBLE CO | COM | 742718109 |  | 6170008 | 40710 | SH |  | SOLE |  | 40710 | 0 | 0 |
| PROGRESSIVE CORP | COM | 743315103 |  | 10270438 | 79180 | SH |  | SOLE |  | 79180 | 0 | 0 |
| QCR HOLDINGS INC | COM | 74727A104 |  | 3420196 | 68900 | SH |  | SOLE | 1 | 68900 | 0 | 0 |
| RAYTHEON TECHNOLOGIES CORP | COM | 75513E101 |  | 5644456 | 55930 | SH |  | SOLE | 1 | 55930 | 0 | 0 |
| RENAISSANCERE HLDGS LTD | COM | G7496G103 |  | 9128412 | 49549 | SH |  | SOLE | 1 | 49549 | 0 | 0 |
| SCHLUMBERGER LTD | COM STK | 806857108 |  | 14366039 | 268725 | SH |  | SOLE | 1 | 268725 | 0 | 0 |
| SENSATA TECHNOLOGIES HLDG PL | SHS | G8060N102 |  | 6787878 | 168100 | SH |  | SOLE | 1 | 168100 | 0 | 0 |
| SOUTHSTATE CORPORATION | COM | 840441109 |  | 7010001 | 91802 | SH |  | SOLE | 1 | 91802 | 0 | 0 |
| STATE STR CORP | COM | 857477103 |  | 10607698 | 136750 | SH |  | SOLE | 1 | 136750 | 0 | 0 |
| STELLAR BANCORP INC | COM | 858927106 |  | 3949054 | 134048 | SH |  | SOLE | 1 | 134048 | 0 | 0 |
| SUNCOR ENERGY INC NEW | COM | 867224107 |  | 3804427 | 119900 | SH |  | SOLE | 1 | 119900 | 0 | 0 |
| SYNOVUS FINL CORP | COM NEW | 87161C501 |  | 6126846 | 163165 | SH |  | SOLE | 1 | 163165 | 0 | 0 |
| TE CONNECTIVITY LTD | SHS | H84989104 |  | 1555540 | 13550 | SH |  | SOLE |  | 13550 | 0 | 0 |
| TEXAS ROADHOUSE INC | COM | 882681109 |  | 5582056 | 61375 | SH |  | SOLE | 1 | 61375 | 0 | 0 |
| HOWARD HUGHES CORP | COM | 44267d107 |  | 10667162 | 139586 | SH |  | SOLE | 1 | 139586 | 0 | 0 |
| PNC FINL SVCS GROUP INC | COM | 693475105 |  | 4749256 | 30070 | SH |  | SOLE |  | 30070 | 0 | 0 |
| US BANCORP DEL | COM NEW | 902973304 |  | 9012879 | 206670 | SH |  | SOLE |  | 206670 | 0 | 0 |
| V2X INC | COM | 92242T101 |  | 4702105 | 113880 | SH |  | SOLE | 1 | 113880 | 0 | 0 |
| VERINT SYSTEMS INC | NOTE 0.250% 4/1 | 92343XAC4 |  | 870000 | 1000000 | PRN |  | SOLE | 1 | 1000000 | 0 | 0 |
| VOYA FINANCIAL INC | COM | 929089100 |  | 14280253 | 232237 | SH |  | SOLE | 1 | 232237 | 0 | 0 |
| BERKLEY W R CORP | COM | 084423102 |  | 7603159 | 104770 | SH |  | SOLE | 1 | 104770 | 0 | 0 |
| WALGREENS BOOTS ALLIANCE INC | COM | 931427108 |  | 292529 | 7830 | SH |  | SOLE | 1 | 7830 | 0 | 0 |
| WHITE MTNS INS GROUP LTD | COM | G9618E107 |  | 4356136 | 3080 | SH |  | SOLE | 1 | 3080 | 0 | 0 |
| WILLIAM PENN BANCORPORATION | COM | 96927A105 |  | 513888 | 42400 | SH |  | SOLE |  | 42400 | 0 | 0 |
| ZEBRA TECHNOLOGIES CORPORATI | CL A | 989207105 |  | 3365381 | 13125 | SH |  | SOLE | 1 | 13125 | 0 | 0 |
| ZILLOW GROUP INC | NOTE 2.750% 5/1 | 98954MAH4 |  | 665700 | 700000 | PRN |  | SOLE | 1 | 700000 | 0 | 0 |

---