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.

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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)
AEON ACQUISITION I CORP	UNIT 01/30/2031	G0R30P136	—	188,860 shares	$1,907,486
BAYVIEW ACQUISITION CORP	ORD SHS	07323B100	—	149,584 shares	$1,815,950
OTG ACQUISITION CORP. I	ORD CL A	G6791A100	—	173,740 shares	$1,765,198
COLUMBUS CIRCLE CAP CORP II	USD CL A ORD SHS	G2296M103	—	173,975 shares	$1,762,367
MILUNA ACQUISITION CORP	USD CL A ORD SHS	G6180J100	—	171,150 shares	$1,730,327
MAYWOOD ACQUISITION CORP 2	ORD SHS CL A USD	G5T117102	—	174,090 shares	$1,720,009
NEWBURY STR II ACQUISITION C	ORD SHS CL A	G6439S109	—	156,170 shares	$1,660,087
ABONY ACQUISITION CORP I	ORD SHS CL A	G00582109	—	160,095 shares	$1,584,941
PERIMETER ACQUISITION CORP I	COM CL A	G7010A129	—	148,830 shares	$1,549,320
BAIN CAP GSS INVT CORP	ORD CL A	G0R78B106	—	149,955 shares	$1,540,038
PIONEER ACQUISITION I CORP	CL A ORD SHS	G7117W107	—	148,726 shares	$1,518,492
FUTURECORP SPACE ACQUISITION	UNIT 99/99/9999	G37307124	—	149,100 shares	$1,510,383
HALL CHADWICK ACQUISITION CO	ORD SHS CL A	G42386105	—	149,895 shares	$1,504,946
CANTOR EQUITY PARTNERS VII I	CL A ORD SHS	G1828W100	—	149,130 shares	$1,504,722
LAFAYETTE ACQUISITION CORP	ORD SHS	G53426105	—	148,800 shares	$1,499,904
TAILWIND 2.0 ACQUISITION COR	ORD SHS CL A	G8662J111	—	149,040 shares	$1,495,616
EVOLUTION GLOBAL ACQUISITION	USD CL A ORD SHS	G3226F101	—	149,026 shares	$1,495,476
DYNAMIX CORP III	USD CL A ORD SHS	G2949T109	—	148,786 shares	$1,486,372
LEAPFROG ACQUISITION CORP	CL A ORD SHS	G5414D103	—	148,710 shares	$1,486,356
WEST ENCLAVE MERGER CORP	ORDINARY SHARES	G9600E107	—	149,130 shares	$1,479,370
BLUE WTR ACQUISITION CORP IV	ORD SHS CL A	G1368A104	—	149,160 shares	$1,476,684
PATRIOT ACQUISITION CORP	UNIT 05/11/2031	G6951A122	—	142,684 shares	$1,425,413
NEWHOLD INVT CORP III	ORD SHS CL A	G6486E102	—	123,307 shares	$1,342,813
ALPEX ACQUISITION CORP	UNIT 06/05/2031	G63325123	—	125,000 shares	$1,252,500
SILICON VY ACQUISITION CORP	CL A	G81306121	—	124,026 shares	$1,251,422
ALUSSA ENERGY ACQUISIT CORP	ORD SHS CL A	G0233J100	—	124,086 shares	$1,245,823
LONG TABLE GROWTH CORP	UNIT 05/29/2031	G5701H122	—	124,250 shares	$1,244,364
SOCIAL COMM PARTNERS CORP	ORD SHS CL A	G8254P103	—	124,026 shares	$1,239,020
KEEN VISION ACQUISITION CORP	SHS	G52443119	—	100,177 shares	$1,238,188
APOGEE ACQUISITION CORP	ORD SHS CL A	G04126101	—	124,288 shares	$1,236,666
WESTIN ACQUISITION CORP	ORD SHS CL A	G9584S106	—	119,076 shares	$1,201,477
FIGX CAP ACQUISITION CORP.	USD CL A ORD SHS	G3473K100	—	114,092 shares	$1,167,161
STONEBRIDGE ACQUISITION II C	CL A SHS	G85096108	—	113,358 shares	$1,152,851
CHURCHILL CAPITAL CORP IX	CL A SHS	G21301109	—	104,360 shares	$1,136,480
IDEA ACQUISITION CORP	ORD SHS CL A	G4727U100	—	104,613 shares	$1,035,669
CANTOR EQUITY PARTNERS VI IN	CL A ORD SHS	G1828R101	—	99,480 shares	$1,031,608
SOLARIUS CAPITAL ACQU CORP	SHS CL A	G82617104	—	99,230 shares	$1,018,100
SPACE ASSET ACQUISITION CORP	USD CL A ORD SHS	G8375S101	—	99,480 shares	$1,010,717
FUTUREWAVE ACQUISITION CORP	UNIT 06/04/2031	G37073122	—	100,000 shares	$1,003,000
HCM IV ACQUISITION CORP	ORD USD CL A	G4365S102	—	99,432 shares	$999,292
YORKVILLE INTL CAP CORP	UNIT 06/05/2031	G98665121	—	99,421 shares	$999,181
INSIGHT DIGITAL PARTNERS II	CL A ORD	G4814G105	—	99,116 shares	$997,107
SILVERBOX CORP V	ORD SHS CL A	G8148S107	—	99,108 shares	$997,026
NEWBRIDGE ACQUISITION LTD	CL A ORD SHS	G6464L102	—	99,480 shares	$993,805
INVEST GREEN ACQUISITION COR	CL A ORD SHS	G4924G102	—	99,120 shares	$992,191
QUASAREDGE ACQUISITION CORP	ORD SHS	G7315L101	—	99,699 shares	$990,011
TWELVE SEAS INVT CO III	ORD SHS CL A	G9145D101	—	99,100 shares	$990,009
BHAV ACQUISITION CORP	CL A ORD SHS	G1R59W101	—	99,440 shares	$989,428
BLUEROCK ACQUISITION CORP	USD CL A ORD SHS	G1352R105	—	99,108 shares	$989,098
VERNAL CAP ACQUISITION CORP	ORD SHS	G93Y7F106	—	99,320 shares	$987,241
PEACE ACQUISITION CORP	ORD SHS	G6956D105	—	99,470 shares	$985,748
QDRO ACQUISITION CORP	ORD SHS CL A	G7310E102	—	99,420 shares	$985,252
KEYSTONE ACQUISITION CORP	CL A	G52539106	—	99,400 shares	$980,084
ENERGY TRANSITION SPL OPPORT	ORD CL A	G23017109	—	98,754 shares	$976,183
FORTUNEX ACQUISITION CORP	UNIT 05/19/2031	G3645W123	—	86,962 shares	$873,968
INFLECTION PT ACQUISIT CORP	CL A ORD SHS	G4790S107	—	79,533 shares	$822,371
1RT ACQUISITION CORP.	USD CL A ORD SHS	G6757R105	—	74,416 shares	$762,020
TEXAS VENTURES ACQUISITION I	USD CL A ORD SHS	G8772L105	—	64,694 shares	$682,522
HARVARD AVE ACQUISITION CORP	USD CL A ORD SHS	G4330A103	—	66,960 shares	$678,305
FG MERGER II CORP	COM	30334J102	—	61,244 shares	$634,488
CHURCHILL CAP CORP XII	CL A ORD SHS	G2131M102	—	49,430 shares	$526,430
BLEICHROEDER ACQUISITI CORP	USD CL A ORD SHS	G1170E104	—	49,282 shares	$508,590
METALS ACQUISITION CORP II	ORD CL A	G60420109	—	49,707 shares	$504,526
MOZAYYX ACQUISITION CORP	ORD CL A	G63113107	—	49,700 shares	$495,509
LAUNCHPAD CADENZA ACQU CORP	USD CL A ORD SHS	G6001S107	—	49,584 shares	$494,848
SOREN ACQUISITION CORP	USD CL A ORD SHS	G8274J103	—	42,780 shares	$424,378
SPRING VY ACQUISITION CORP I	SHS CL A	G8377R101	—	39,676 shares	$407,076
SPARK I ACQUISITION CORP	ORD SHS	G8316B100	—	31,058 shares	$389,778
CANTOR EQUITY PARTNERS II IN	CL A ORD SHS	G1827P106	—	36,472 shares	$388,427
NEW AMER ACQUISITION I CORP	COM SHS CL A	023634108	—	34,696 shares	$352,164
INTERPRIVATE INVTS PARTNERS	UNIT 05/27/2031	G49097127	—	14,712 shares	$145,943
FG IMPERII ACQUISITION CORP	*W EXP 10/14/203	G3R41C110	—	400,000 shares	$117,360
GIGCAPITAL9 CORP	RIGHT 12/01/2030	G3865B122	—	400,000 shares	$114,020
GORES HLDGS X INC	*W EXP 05/02/203	G4002F125	—	99,180 shares	$93,229
KENSINGTON CAP ACQUISITION	*W EXP 99/99/999	G5235S115	—	74,558 shares	$85,742
XSOLLA SPAC 1	*W EXP 01/12/203	G9833K110	—	360,615 shares	$80,994
QUANTUM LEAP ACQUISITION COR	*W EXP 03/11/202	G73167127	—	496,600 shares	$64,558
TGE VALUE CREATIVE SOLUTIONS	*W EXP 09/16/203	G8773E118	—	164,849 shares	$64,275
ILLUMINATION ACQUISITIO CORP	*W EXP 12/23/203	G470AU118	—	107,683 shares	$52,765
INFINITE EAGLE ACQUISITION C	RIGHT 01/13/2031	G4802J111	—	265,211 shares	$51,743
FUTURE MONEY ACQUISITION COR	RIGHT 03/16/2031	G3700S116	—	243,815 shares	$51,323
CH4 NATURAL SOLUTIONS CORP	*W EXP 12/22/203	G2104X119	—	148,980 shares	$49,163
CHENGHE ACQUISITION III CO	*W EXP 09/09/203	G2086N121	—	218,096 shares	$49,072
ARMADA ACQUISITION CORP II	*W EXP 05/21/203	G0R38G112	—	56,081 shares	$47,669
BOLD EAGLE ACQUISITION CORP	RIGHT 10/11/2029	G2003N121	—	158,495 shares	$45,964
K&F GROWTH ACQUISITION CORP	RIGHT 08/29/2031	G52258129	—	332,574 shares	$42,752
CAMBRIDGE ACQUISITION CORP	*W EXP 01/30/203	G1871M116	—	141,666 shares	$42,500
PRAETORIAN ACQUISITION CORP	*W EXP 01/16/203	G7S17G129	—	110,056 shares	$41,821
IRENIC ACQUISITION CORP	*W EXP 04/10/203	G4939F123	—	65,913 shares	$40,876
HENNESSY CAP INVTS CORP VIII	RIGHT 02/02/2031	G44055120	—	250,000 shares	$40,250
PROEM ACQUISITION CORP I	*W EXP 01/29/203	G7341A111	—	101,717 shares	$39,263
SOCIAL COMM PARTNERS CORP	*W EXP 02/13/203	G8254P111	—	62,013 shares	$37,521
OXLEY BRIDGE ACQ LTD	*W EXP 06/17/203	G6858G115	—	156,694 shares	$34,716
HENNESSY CAP INVT CORP VII	RIGHT 01/17/2030	G4405D115	—	94,950 shares	$33,527
GALATA ACQUISITION CORP II	*W EXP 09/12/203	G3R25N116	—	90,000 shares	$33,363
ARMADA ACQUISITION CORP III	*W EXP 02/13/203	G0R38M119	—	99,400 shares	$32,057
DAEDALUS SPL ACQUISITION COR	*W EXP 11/24/203	G2616C116	—	49,578 shares	$31,693
COLOMBIER ACQUISITION CORP I	*W EXP 12/31/203	G2284A111	—	37,305 shares	$29,844
RENATUS TACTICAL ACQUIS	*W EXP 05/15/203	G7490F127	—	37,208 shares	$28,278
CHAMPIONSGATE ACQUISITION CO	RIGHT 05/14/2030	G2124S116	—	192,834 shares	$28,009