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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) |
|---|---|---|---|---|---|
| RENATUS TACTICAL ACQUIS | SHS CL A | G7490F101 | — | 403,883 shares | $4,232,694 |
| EGH ACQUISITION CORP. | SHS CL A | G2946P100 | — | 409,369 shares | $4,216,501 |
| CAMBRIDGE ACQUISITION CORP | USD CL A ORD SHS | G1871M108 | — | 424,998 shares | $4,211,730 |
| UNITED ACQUISITION CORP I | ORD SHS CL A | G92ALM108 | — | 422,792 shares | $4,200,439 |
| ARTIUS II ACQUISITION INC | SHS CL A | G0509J115 | — | 396,960 shares | $4,160,141 |
| SC II ACQUISITION CORP | ORD SHS CLASS A | G7866D102 | — | 412,893 shares | $4,145,446 |
| CSLM DIGITA ASSET ACQ CORP I | USD CL A ORD SHS | G2584S101 | — | 396,106 shares | $4,016,515 |
| HCM III ACQUISITION CORP | ORD SHS CL A | G4365E103 | — | 388,407 shares | $3,992,824 |
| JAB ACQUISITION CORP I | UNIT 06/05/2031 | G50004129 | — | 397,720 shares | $3,989,132 |
| AA MISSION ACQUISITION CORP | ORD SHS CL A | G1000S109 | — | 392,235 shares | $3,985,108 |
| D BORAL ACQUISITION I CORP | ORD SHS CL A | G2616T101 | — | 397,720 shares | $3,965,268 |
| PROEM ACQUISITION CORP I | ORD SHS | G7341A103 | — | 397,720 shares | $3,953,337 |
| TRG LATIN AMER ACQUIS CORP | CL A ORD SHS | G9037S109 | — | 397,600 shares | $3,934,252 |
| STELLAR V CAP CORP | SHS CL A | G8475V103 | — | 371,377 shares | $3,906,886 |
| BLACK HAWK ACQUISITION CORP | USD CL A SHS | G1148A101 | — | 314,797 shares | $3,889,317 |
| GSR V ACQUISITION CORP | UNIT 05/12/2031 | G4R102125 | — | 387,193 shares | $3,883,546 |
| GALATA ACQUISITION CORP II | ORD SHS CL A | G3R25N108 | — | 371,961 shares | $3,758,666 |
| YHN ACQUISITION I LTD | SHS | G1514D101 | — | 335,896 shares | $3,673,023 |
| EUREKA ACQUISITION CORP | SHS CL A | G32168109 | — | 315,488 shares | $3,609,183 |
| ACTIVATE ENERGY ACQUISIT COR | CL A ORD SHS | G0081J103 | — | 347,036 shares | $3,470,360 |
| TRANSLATIONAL DEV ACQUISITIO | COM CL A | G9008W105 | — | 322,658 shares | $3,449,214 |
| HIGHVIEW MERGER CORP | ORD SH CL A | G4569C101 | — | 333,856 shares | $3,388,638 |
| AI INFRASTRUCTURE ACQUISI | ORD SHS CL A | G01336109 | — | 330,314 shares | $3,379,112 |
| RF ACQUISITION CORP III | ORD SHS | G7537X107 | — | 333,057 shares | $3,302,260 |
| ILLUMINATION ACQUISITIO CORP | ORD SHS CL A | G470AU100 | — | 323,049 shares | $3,198,185 |
| EMMIS ACQUISITION CORP. | SHS CL A | G3037D105 | — | 309,478 shares | $3,128,823 |
| RIBBON ACQUISITION CORP | ORD SHS CL A | G7552W109 | — | 297,592 shares | $3,124,716 |
| RITHM ACQUISITION CORP | CL A | G75751100 | — | 298,200 shares | $3,119,172 |
| REPUBLIC DIGITAL ACQUISITION | USD CL A ORD SHS | G7515A103 | — | 297,570 shares | $3,070,922 |
| COLOMBIER ACQUISITION CORP I | ORD SHS CL A | G2284A103 | — | 298,440 shares | $3,059,010 |
| GSR IV ACQUISITION CORP | CL A SHS | G4R12K107 | — | 297,598 shares | $3,023,596 |
| FUTURECREST ACQUISITION CORP | CL A ORD SHS | G3730U107 | — | 291,974 shares | $3,007,332 |
| COLUMBUS ACQUISITION CORP | SHS | G2295P107 | — | 282,122 shares | $3,004,599 |
| INDIGO ACQUISITION CORP | ORD SHS | G4791J106 | — | 293,030 shares | $3,003,558 |
| KENSINGTON CAP ACQUISITION | UNIT 99/99/9999 | G5235S131 | — | 298,232 shares | $3,003,196 |
| RANGE CAP ACQUISITION CORP I | CL A ORD SHS | G7375J103 | — | 297,620 shares | $3,000,010 |
| PONO CAP FOUR INC | CL A ORD SHS | G71702107 | — | 298,260 shares | $2,970,670 |
| HENNESSY CAP INVTS CORP VIII | ORD CL A | G44055104 | — | 298,440 shares | $2,963,509 |
| CALISA ACQUISITION CORP | ORD SHS | G1771C101 | — | 290,563 shares | $2,949,214 |
| CH4 NATURAL SOLUTIONS CORP | ORD SHS CL A | G2104X101 | — | 297,960 shares | $2,934,906 |
| FIFTH ERA ACQUISITION CORP I | ORD SHS CL A | G3415K101 | — | 281,174 shares | $2,929,833 |
| ARC GROUP ACQUISITION I CORP | CL A ORD SHS | G24498118 | — | 285,833 shares | $2,824,030 |
| RMG ML SPORTS HOLDINGS | UNIT 06/05/2031 | G7610P120 | — | 273,433 shares | $2,731,596 |
| BLACK SPADE ACQUISITION III | USD CL A ORD SHS | G1154S103 | — | 273,849 shares | $2,724,798 |
| INFINITE EAGLE ACQUISITION C | CL A | G4802J103 | — | 265,211 shares | $2,683,935 |
| WEN ACQUISITION CORP | COM CL A | G9R39C103 | — | 259,931 shares | $2,674,690 |
| TRAILBLAZER ACQUISITION CORP | ORD SHS CL A | G9009S103 | — | 261,006 shares | $2,641,381 |
| PANTAGES CAPITAL ACQUISITION | ORD SHS CL A | G8089R100 | — | 248,616 shares | $2,637,816 |
| BTC DEV CORP | ORD SHS CL A | G0701G109 | — | 260,103 shares | $2,616,636 |
| IRON DOME ACQUISITION I CORP | UNIT 02/27/2031 | G4949K120 | — | 256,800 shares | $2,592,396 |
| JENA ACQUISITION CORP II | USD CL A ORD SHS | G5093B105 | — | 247,850 shares | $2,567,726 |
| SPRING VY ACQUISITION CORP I | ORD SHS CL A | G8377G105 | — | 250,000 shares | $2,550,000 |
| LIGHTWAVE ACQUISITION CORP | USD CL A ORD SHS | G5490M100 | — | 248,050 shares | $2,542,513 |
| GORES HOLDINGS XI INC | UNIT 06/24/2031 | G40008123 | — | 248,552 shares | $2,520,317 |
| CRANE HBR ACQUISITION CORP I | ORD SHS CL A | G25014104 | — | 247,775 shares | $2,512,439 |
| WILLOW LANE ACQUISITION CRP | USD CL A ORD SHS | G9675K103 | — | 245,700 shares | $2,511,054 |
| WHITE PEARL ACQUISITION CORP | ORD SHS CL A | G96193100 | — | 248,700 shares | $2,491,974 |
| IRON HORSE ACQUISIT II CORP | COM | 46283H103 | — | 247,850 shares | $2,485,936 |
| AMPERCAP ACQUISITION CO | UNIT 05/22/2031 | G0344N123 | — | 247,605 shares | $2,484,716 |
| ARCHIMEDES TECH SPAC PTNRS I | ORD SHS | G0453R105 | — | 248,000 shares | $2,482,480 |
| MESHFLOW ACQUISITION CORP | USD CL A ORD SHS | G6032N101 | — | 247,899 shares | $2,481,469 |
| X3 ACQUISITION CORP LTD | ORD SHS CL A | G9831H101 | — | 248,026 shares | $2,477,780 |
| APEX TECH ACQUISITION INC | ORD SHS | G0R21F105 | — | 248,500 shares | $2,472,575 |
| GALAXYEDGE ACQUISITION CORP | ORD SHS | G3710B103 | — | 248,525 shares | $2,470,339 |
| MUZERO ACQUISITION CORP | CL A ORD SHS | G8775A106 | — | 248,700 shares | $2,469,591 |
| M EVO GBL ACQUISITION CORP I | ORD SHS CL A | G6071J102 | — | 248,700 shares | $2,467,104 |
| MOUNTAIN CREST ACQUISITION 6 | ORD SHS | G62980100 | — | 248,540 shares | $2,465,517 |
| ART TECHNOLOGY ACQUISITION C | USD CL A ORD SHS | G0579E103 | — | 247,924 shares | $2,464,365 |
| M3-BRIGADE ACQUISITION VI CO | ORD SHS CL A | G63221108 | — | 242,244 shares | $2,453,932 |
| LEGATO MERGER CORP IV | ORD SHS | G7318R105 | — | 244,881 shares | $2,429,220 |
| GRAF GLOBAL CORP | ORD SHS CL A | G4036C106 | — | 223,937 shares | $2,425,238 |
| OAKTREE ACQUISITION CORP III | SHS CL A | G6717R104 | — | 223,645 shares | $2,395,238 |
| HELIX ACQUISITION CORP III | USD CL A ORD SHS | G4444S107 | — | 223,830 shares | $2,372,598 |
| BITCOIN INFRASTRUCTURE ACQUI | USD CL A ORD SHS | G1143H101 | — | 228,781 shares | $2,287,810 |
| APERTURE AC | USD CL A ORD SHS | G0474D101 | — | 228,779 shares | $2,264,912 |
| CARTESIAN GROWTH CORP IV | UNIT 06/08/2031 | G19316127 | — | 225,000 shares | $2,250,000 |
| CHAMPIONSGATE ACQUISITION CO | SHS CL A | G2124S108 | — | 209,151 shares | $2,177,262 |
| LIONHEART HOLDINGS | SHS CL A | G5501C109 | — | 198,776 shares | $2,140,818 |
| VIKING ACQUISITION CORP I | ORD CL A | G9582G104 | — | 208,034 shares | $2,126,107 |
| GESHER ACQUISITION CORP. II | USD CL A ORD SHS | G3852D107 | — | 203,379 shares | $2,125,311 |
| STARRY SEA ACQUISITION CORP | SHS | G8559L112 | — | 203,371 shares | $2,082,519 |
| CANTOR EQUITY PARTNERS IV IN | SHS CL A | G1828E100 | — | 198,840 shares | $2,067,936 |
| DT CLOUD STAR ACQUISITION CO | SHS | G2853N106 | — | 179,837 shares | $2,024,965 |
| DAEDALUS SPL ACQUISITION COR | USD CL A ORD SHS | G2616C108 | — | 198,320 shares | $2,001,049 |
| BURTECH ACQUISITION CORP II | UNIT 05/21/2031 | G1810A124 | — | 198,940 shares | $1,999,347 |
| DISCIPLINED GROWTH | UNIT 99/99/9999 | G2775W127 | — | 198,760 shares | $1,995,550 |
| SAFEGUARD ACQUISITION CORP | CL A ORD SHS | G77676107 | — | 198,260 shares | $1,994,496 |
| SPARTACUS ACQUISITION CORP I | CL A ORD SHS | G8303R100 | — | 198,858 shares | $1,990,569 |
| KRAKACQUISITION CORPORATION | CL A ORD SHS | G5315G106 | — | 198,960 shares | $1,989,600 |
| IRIS ACQUISITION CORP II | ORD SHS CL A | G4940M109 | — | 198,960 shares | $1,988,605 |
| TEXAS VENTURES ACQUISITION I | UNIT 06/15/2031 | G8773A116 | — | 198,840 shares | $1,988,400 |
| VINE HILL CAP INVTS CORP II | CL A | G9709D109 | — | 198,339 shares | $1,979,423 |
| ARMADA ACQUISITION CORP III | ORD SHS CL A | G0R38M101 | — | 198,800 shares | $1,978,060 |
| ITHAX ACQUISITION CORP III | USD CL A ORD SHS | G4977S102 | — | 198,200 shares | $1,978,036 |
| ACP HOLDINGS ACQUISITION COR | CL A | G0113G101 | — | 198,860 shares | $1,976,668 |
| PLUTONIAN ACQUISITION CORP I | ORD CL A | G71382108 | — | 198,610 shares | $1,976,170 |
| IRENIC ACQUISITION CORP | ORD SHS CL A | G4939F107 | — | 197,739 shares | $1,975,413 |
| COLLECTIVE ACQUISITION CORP | ORD SHS CL A | G22741105 | — | 198,920 shares | $1,969,308 |
| AXIOM INTELLIGENCE AC CORP 1 | ORD SHS CL A | G0750N104 | — | 189,997 shares | $1,964,569 |
| BLUEPORT ACQUISITION LTD | USD CL A ORD SHS | G1196A102 | — | 192,279 shares | $1,946,825 |