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BERKLEY W R CORP
Period ended Jun 30, 2026 · Latest filing Aug 24, 2026
These quarterly holdings are delayed and may not include all assets or short positions.
Values are from the reporting date, not current prices or purchase costs.
The same security may appear in multiple rows.
Source: SEC
Reported portfolio value
Quarter-end reported holdings; not current value or investment performance.
View reported values
- Jun 30, 2026: $2,175,750,682
More quarters will appear as history becomes available.
Top holdings
Top 10 at Jun 30, 2026. Matching entries are combined; security classes and options remain separate. Shares exclude principal amounts; option shares reflect the reported underlying amount.
View top holdings values
- ENTERPRISE PRODS PARTNERS L · COM · 293792107 · shares: $250,887,000
- ENERGY TRANSFER L P · COM UT LTD PTN · 29273V100 · shares: $157,740,000
- KINDER MORGAN INC DEL · COM · 49456B101 · shares: $90,705,476
- PLAINS ALL AMERN PIPELINE L · UNIT LTD PARTN · 726503105 · shares: $70,882,674
- ON SEMICONDUCTOR CORP · COM · 682189105 · shares: $69,119,896
- MICROSOFT CORP · COM · 594918104 · shares: $55,729,188
- MICROSOFT CORP · COM · 594918104 · shares · PUT: $55,729,188
- WESTERN MIDSTREAM PARTNERS · COM UNIT LP INT · 958669103 · shares: $55,442,607
- PROGRESSIVE CORP · COM · 743315103 · shares: $45,347,817
- AGRICULTURE & NAT SOL ACQ CO · SHS CL A · G0131Y100 · shares: $37,059,804
Reported holdings
344 reported entries| Issuer | Class | CUSIP | Type | Shares / principal | Reported value (USD) |
|---|---|---|---|---|---|
| LEGATO MERGER CORP IV | *W EXP 99/99/999 | G7318R113 | — | 56,813 shares | $26,702 |
| UY SCUTI ACQUISITION CORP. | RIGHT 03/03/2030 | G93Y0A112 | — | 179,343 shares | $25,108 |
| COLLECTIVE ACQUISITION CORP | *W EXP 04/27/203 | G22741113 | — | 99,460 shares | $24,875 |
| AA MISSION ACQUISITION CORP | *W EXP 07/23/203 | G1000S125 | — | 111,790 shares | $24,594 |
| MILUNA ACQUISITION CORP | *W EXP 09/29/203 | G6180J118 | — | 171,150 shares | $23,131 |
| GESHER ACQUISITION CORP. II | *W EXP 10/31/203 | G3852D115 | — | 81,898 shares | $22,931 |
| SIDDHI ACQUISITION CORP | RIGHT 09/15/2029 | G8118C116 | — | 93,212 shares | $22,557 |
| NEWBRIDGE ACQUISITION LTD | RIGHT 09/25/2030 | G6464L136 | — | 99,480 shares | $21,886 |
| FUTURECREST ACQUISITION CORP | *W EXP 09/30/203 | G3730U115 | — | 24,805 shares | $21,084 |
| COPLEY ACQUISITION CORP | *W EXP 99/99/999 | G24243126 | — | 244,216 shares | $20,929 |
| BLUE WTR ACQUISITION CORP IV | *W EXP 08/09/203 | G1368A112 | — | 57,500 shares | $20,556 |
| COLUMBUS ACQUISITION CORP | RIGHT 99/99/9999 | G2295P115 | — | 35,190 shares | $19,351 |
| LIONHEART HOLDINGS | *W EXP 06/07/203 | G5501C117 | — | 46,791 shares | $18,574 |
| LAFAYETTE DIGITAL ACQUISITIO | *W EXP 12/23/203 | G5345D115 | — | 58,092 shares | $18,009 |
| SPACSPHERE ACQUISITION CORP | *W EXP 02/06/203 | G8T088133 | — | 148,000 shares | $15,599 |
| XFLH CAP CORP | RIGHT 12/31/2029 | G9834D115 | — | 150,000 shares | $15,390 |
| BEST SPAC I ACQUISITION CORP | RIGHT 05/27/2030 | G1069P129 | — | 91,786 shares | $15,200 |
| ENERGY TRANSITION SPL OPPORT | *W EXP 99/99/999 | G23017117 | — | 49,377 shares | $14,813 |
| QDRO ACQUISITION CORP | *W EXP 03/27/203 | G7310E110 | — | 49,710 shares | $14,664 |
| HCM IV ACQUISITION CORP | *W EXP 01/20/203 | G4365S110 | — | 24,858 shares | $14,169 |
| NMP ACQUISITION CORP | RIGHT 06/27/2030 | G6375X112 | — | 85,484 shares | $13,771 |
| ABONY ACQUISITION CORP I | *W EXP 01/29/203 | G00582117 | — | 28,687 shares | $13,770 |
| SILVERBOX CORP V | *W EXP 09/16/203 | G8148S115 | — | 32,676 shares | $13,577 |
| BITCOIN INFRASTRUCTURE ACQUI | *W EXP 11/06/203 | G1143H119 | — | 43,284 shares | $13,487 |
| EMMIS ACQUISITION CORP. | RIGHT 09/12/2030 | G3037D113 | — | 89,612 shares | $12,541 |
| K2 CAP ACQUISITION CORP | RIGHT 07/30/2027 | G5226B113 | — | 57,890 shares | $12,484 |
| TAILWIND 2.0 ACQUISITION COR | RIGHT 11/07/2030 | G8662J129 | — | 99,600 shares | $12,460 |
| MESHFLOW ACQUISITION CORP | *W EXP 11/20/203 | G6032N119 | — | 38,690 shares | $10,911 |
| PIONEER ACQUISITION I CORP | *W EXP 06/16/203 | G7117W115 | — | 50,000 shares | $10,785 |
| WESTIN ACQUISITION CORP | RIGHT 09/17/2030 | G9584S114 | — | 62,290 shares | $10,714 |
| YORKVILLE ACQUISITION CORP. | *W EXP 06/06/203 | G98659124 | — | 39,676 shares | $10,169 |
| MOZAYYX ACQUISITION CORP | *W EXP 99/99/999 | G63113115 | — | 12,425 shares | $8,729 |
| MAYWOOD ACQUISITION CORP 2 | *W EXP 04/14/203 | G5T117136 | — | 124,350 shares | $8,126 |
| LAFAYETTE ACQUISITION CORP | RIGHT 10/24/2030 | G53426113 | — | 70,423 shares | $6,778 |
| VERAXA BIOTECH AG | *W EXP 06/08/203 | H9130A111 | — | 59,990 shares | $6,617 |
| A SPAC III ACQUISITION CORP | RIGHT 01/02/2026 | G0544A145 | — | 81,046 shares | $6,565 |
| RF ACQUISITION CORP III | RIGHT 01/28/2031 | G7537X123 | — | 52,000 shares | $6,500 |
| CROWN RESV ACQUISITION CORP | *W EXP 10/06/203 | G2574S103 | — | 116,748 shares | $6,147 |
| SIZZLE ACQUISITION CORP. II | RIGHT 04/02/2030 | G8193F133 | — | 30,197 shares | $5,765 |
| IRIS ACQUISITION CORP II | *W EXP 08/15/203 | G4940M117 | — | 21,933 shares | $5,155 |
| DYNAMIX CORP III | *W EXP 10/10/203 | G2949T117 | — | 16,217 shares | $4,663 |
| QUANTUMSPHERE ACQUISITION CO | RIGHT 08/06/2030 | G7387B114 | — | 24,108 shares | $3,874 |
| LIGHTWAVE ACQUISITION CORP | *W EXP 06/06/203 | G5490M126 | — | 10,029 shares | $2,962 |
| CHENGHE ACQUISITION II CO | *W EXP 05/30/203 | G71604113 | — | 74,685 shares | $0 |