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SEC Form 13F

BERKLEY W R CORP 13F Holdings

Inspect BERKLEY W R CORP's 2026-06-30 SEC 13F positions, public filing date, amendments and original receipt.

As of 2026-08-25T03:59:59.999Z

Report period
2026-06-30
Publicly available
2026-08-25
Reported value
$2,175,750,682
Positions
343
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Disclosed positions

Largest disclosed position values

Scale: 0 to 250,890,000 USD · zero baseline

Largest disclosed position values

  • EPD · COM+250,887,000 USD
  • ET · COM UT LTD PTN+157,740,000 USD
  • KMI · COM+90,705,476 USD
  • PAA · UNIT LTD PARTN+70,882,674 USD
  • ON · COM+69,119,896 USD
  • MSFT · COM+55,729,188 USD
  • MSFT · COM · Put+55,729,188 USD
  • WES · COM UNIT LP INT+55,442,607 USD
  • PGR · COM+45,347,817 USD
  • ANSC · SHS CL A+37,059,804 USD

Reported underlying-position values for 2026-06-30, publicly available 2026-08-25. Put/call values are not option premiums; this subset is not a complete portfolio allocation. Exact issuer, class and unit remain in the table. Showing the first 10 of 50 recorded values; the complete table remains available below.

Inspect all 50 displayed rows: Disclosed positions

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ENTERPRISE PRODS PARTNERS LEPDCOM$250,887,0006,825,000SHNone
ENERGY TRANSFER L PETCOM UT LTD PTN$157,740,0008,250,000SHNone
KINDER MORGAN INC DELKMICOM$90,705,4762,837,206SHNone
PLAINS ALL AMERN PIPELINE LPAAUNIT LTD PARTN$70,882,6743,184,307SHNone
ON SEMICONDUCTOR CORPONCOM$69,119,896731,118SHNone
MICROSOFT CORPMSFTCOM$55,729,188149,400SHNone
MICROSOFT CORPMSFTCOM$55,729,188149,400SHPut
WESTERN MIDSTREAM PARTNERSWESCOM UNIT LP INT$55,442,6071,266,970SHNone
PROGRESSIVE CORPPGRCOM$45,347,817207,589SHNone
AGRICULTURE & NAT SOL ACQ COANSCSHS CL A$37,059,8043,265,181SHNone
NVIDIA CORPORATIONNVDACOM$24,971,232124,800SHNone
NVIDIA CORPORATIONNVDACOM$24,971,232124,800SHPut
ROMAN DBDR ACQUISITION CORPDRDBORD SHS CL A$23,995,2272,276,587SHNone
TAIWAN SEMICONDUCTOR MANUFACTSMSPONSORED ADS$23,735,22949,700SHNone
TAIWAN SEMICONDUCTOR MANUFACTSMSPONSORED ADS$23,735,22949,700SHPut
PFIZER INCPFECOM$23,250,131965,537SHNone
GLOBAL INDEMNITY GROUP LLCGBLICOM CL A$22,991,525919,661SHNone
INFLECTION PT ACQUISITION COIPCXCL A ORD SHS$22,824,5072,211,677SHNone
TESLA INCTSLACOM$21,030,00050,000SHPut
TESLA INCTSLACOM$21,030,00050,000SHNone
SILVERBOX CORP IVSBXDSHS CL A$20,864,6731,930,127SHNone
EQV VENTURES AC CORP. IIEVACORD SHS CL A$19,147,3891,880,883SHNone
LAUNCH ONE ACQUISITION CORPLPAASHS CLASS A$18,190,9671,675,043SHNone
KOCHAV DEFENSE ACQUI COUnresolvedSHS CL A$17,528,9501,690,352SHNone
YORKVILLE ACQUISITION CORP.MCGASHS CL A$16,801,2701,645,570SHNone
GLOBA TERRA ACQUISITION CORGTERACL A ORD SHS$16,094,1991,561,028SHNone
M3BRIGADE ACQUISITION V CORPUnresolvedCL A$15,483,9221,429,725SHNone
CANTOR EQUITY PARTNERS I INCCEPOSHS CL A$15,356,5981,444,647SHNone
ST JOE COJOECOM$13,123,615209,542SHNone
GIGCAPITAL8 CORPGIWORD CL A$12,972,0681,289,470SHNone
BERTO ACQUISITION CORPTACOORD SHS$12,860,7301,225,999SHNone
ARMADA ACQUISITION CORP IIXRPNCOM CL A$12,855,5191,233,735SHNone
CROWN RESV ACQUISITION CORPUnresolvedORD SHS CL A$12,308,2481,217,433SHNone
FACT II ACQUISITION CORPFACTORD SHS CL A$12,257,8781,153,140SHNone
NEW PROVIDENCE ACQUISITION CNPACUSD CL A ORD SHS$12,243,6461,179,542SHNone
AMAZON COM INCAMZNCOM$11,917,00050,000SHNone
AMAZON COM INCAMZNCOM$11,917,00050,000SHPut
K&F GROWTH ACQUISITION CORPKFIISHS CL A$11,871,0871,124,156SHNone
HENNESSY CAP INVT CORP VIIHVIIORD SHS CL A$11,510,3931,101,473SHNone
QUARTZSEA ACQUISITION CORPQSEAORD SHS$11,504,8611,094,190SHNone
COPLEY ACQUISITION CORPCOPLORD SHS CL A$11,311,0121,084,469SHNone
INFLECTION POINT ACQU CORP VIPEXORD SHS CL A$11,139,9961,060,952SHNone
JACKSON ACQUISITION CO IIJACSCOM SHS CL A$9,872,175927,836SHNone
FG IMPERII ACQUISITION CORPUnresolvedORD SHS CL A$9,851,553992,100SHNone
CHARLTON ARIA ACQUISITION COCHARORD SHS CL A$9,488,535878,975SHNone
XSOLLA SPAC 1UnresolvedUSD CL A ORD SHS$9,137,487920,190SHNone
LAUNCH TWO ACQUISITION CORP.LPBBORD SHS CL A$9,089,852847,934SHNone
QUANTUMSPHERE ACQUISITION COQUMSORD SHS$9,007,928881,402SHNone
RF ACQUISITION CORP IIRFAISHS$8,979,658814,851SHNone
SOULPOWER ACQUISITION CORPSOULUSD CL A ORD SHS$8,971,007866,764SHNone

Largest 50 positions by reported value; the filing may contain more positions.

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ENTERPRISE PRODS PARTNERS LEPDCOM$250,887,0006,825,000SHNone

First displayed source row from Disclosed positions. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-06-30 and its public availability date is 2026-08-25. Subtracting those calendar dates gives 56 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

Read the amount together with its Unit and Option columns. A reported put or call position is not an option premium paid, and a quarterly holding is not a purchase made on its public filing date. Check every accession in the effective amendment lineage below: a retained holding can originate in an earlier filing rather than the latest linked amendment.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

How amendments affect these holdings

This view uses 2 effective filing version(s). A restatement replaces the previous book; a new-holdings amendment adds positions. 160 positions lack a resolved ticker and 5 positions are put or call entries.

The displayed holdings combine the effective filing versions listed here. The latest receipt linked below identifies the current projection version; it is not proof that every retained holding originated in that latest amendment. Inspect all effective accessions when verifying a position's source.

A 13F is a delayed quarterly snapshot of disclosed holdings. It is not a complete trade ledger and does not reveal every position in a manager's portfolio. Option values refer to the reported underlying position rather than a traded option premium.

Show the table · 2 rows, 2 columns
Effective SEC accessionRole in this view
0000899140-26-000887Earlier version retained in the effective book
0000899140-26-000955Latest effective version

Quarter end and public filing date

Use the filing's public availability date when constructing a historical observation. The quarter-end report period is earlier and cannot be substituted for when the public learned the holdings.