BERKLEY W R CORP — 13F Holdings & Portfolio
CIK 11544 · latest 13F-HR filed 2026-08-14
BERKLEY W R CORP manages $2.10B in 13F-reported U.S. long-equity assets across 342 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are EPD (11.96%), ET (7.52%), KMI (4.32%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 85 new positions and exited 93; 74 existing positions rose in reported value and 48 fell.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
Long-equity book
Distinct positions
Filed 2026-08-14
vs 2026-03-31
Portfolio charts
Latest quarter's book, what changed, and how the portfolio has evolved across filings.
| Name | Title / Status | Ownership | Type |
|---|
Quarter-over-quarter changes
Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.
Top Adds (vs prior quarter)
- ON SEMICONDUCTOR CORP$23.8M +52.7%
- PLAINS ALL AMERN PIPELINE L$10.9M +18.3%
- FACT II ACQUISITION CORP$8.8M +258.7%
- CROWN RESV ACQUISITION CORP$7.8M +172.2%
- AGRICULTURE & NAT SOL ACQ CO$7.4M +25.0%
Top Trims
- CHURCHILL CAPITAL CORP IX-$18.2M -94.1%
- LIONHEART HOLDINGS-$7.7M -78.3%
- PANTAGES CAPITAL ACQUISITION-$6.5M -71.2%
- BERTO ACQUISITION CORP-$5.8M -31.2%
- GP-ACT III ACQUISITION CORP-$3.8M -41.0%
New Positions
- MICROSOFT CORP$55.7M
- NVIDIA CORPORATION$25.0M
- TAIWAN SEMICONDUCTOR MANUFAC$23.7M
- PFIZER INC$23.3M
- TESLA INC$21.0M
Exited Positions
- WESTERN MIDSTREAM PARTNERS L$52.2M
- HAYMAKER ACQUISITION CORP IV$26.7M
- GLOBAL INDEMNITY GROUP LLC$25.0M
- CANTOR EQUITY PARTNERS III I$23.0M
- MOUNTAIN LAKE ACQUISITION CO$19.8M
BERKLEY W R CORP Holdings (2026-06-30)
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | ENTERPRISE PRODS PARTNERS L | EPD | 293792107 | $250.9M | 11.96% | 6,825,000 | SH |
| 2 | ENERGY TRANSFER L P | ET | 29273V100 | $157.7M | 7.52% | 8,250,000 | SH |
| 3 | KINDER MORGAN INC DEL | KMI | 49456B101 | $90.7M | 4.32% | 2,837,206 | SH |
| 4 | PLAINS ALL AMERN PIPELINE L | PAA | 726503105 | $70.9M | 3.38% | 3,184,307 | SH |
| 5 | ON SEMICONDUCTOR CORP | ON | 682189105 | $69.1M | 3.30% | 731,118 | SH |
| 6 | MICROSOFT CORP | MSFT | 594918104 | $55.7M | 2.66% | 149,400 | SH |
| 7 | MICROSOFT CORP Put | MSFT | 594918104 | $55.7M | 2.66% | 149,400 | SH |
| 8 | PROGRESSIVE CORP | PGR | 743315103 | $45.3M | 2.16% | 207,589 | SH |
| 9 | AGRICULTURE & NAT SOL ACQ CO | ANSC | G0131Y100 | $37.1M | 1.77% | 3,265,181 | SH |
| 10 | NVIDIA CORPORATION | NVDA | 67066G104 | $25.0M | 1.19% | 124,800 | SH |
| 11 | NVIDIA CORPORATION Put | NVDA | 67066G104 | $25.0M | 1.19% | 124,800 | SH |
| 12 | ROMAN DBDR ACQUISITION CORP | DRDB | G7633M104 | $24.0M | 1.14% | 2,276,587 | SH |
| 13 | TAIWAN SEMICONDUCTOR MANUFAC | TSM | 874039100 | $23.7M | 1.13% | 49,700 | SH |
| 14 | TAIWAN SEMICONDUCTOR MANUFAC Put | TSM | 874039100 | $23.7M | 1.13% | 49,700 | SH |
| 15 | PFIZER INC | PFE | 717081103 | $23.3M | 1.11% | 965,537 | SH |
| 16 | INFLECTION PT ACQUISITION CO | IPCX | G47875102 | $22.8M | 1.09% | 2,211,677 | SH |
| 17 | TESLA INC | TSLA | 88160R101 | $21.0M | 1.00% | 50,000 | SH |
| 18 | TESLA INC Put | TSLA | 88160R101 | $21.0M | 1.00% | 50,000 | SH |
| 19 | SILVERBOX CORP IV | SBXD | G81354105 | $20.9M | 0.99% | 1,930,127 | SH |
| 20 | EQV VENTURES AC CORP. II | EVAC | G3106Q102 | $19.1M | 0.91% | 1,880,883 | SH |
| 21 | LAUNCH ONE ACQUISITION CORP | LPAA | G5S86M100 | $18.2M | 0.87% | 1,675,043 | SH |
| 22 | KOCHAV DEFENSE ACQUI CO | KCHV | G5304D106 | $17.5M | 0.84% | 1,690,352 | SH |
| 23 | YORKVILLE ACQUISITION CORP. | MCGA | G98659116 | $16.8M | 0.80% | 1,645,570 | SH |
| 24 | GLOBA TERRA ACQUISITION COR | GTERA | G3933N116 | $16.1M | 0.77% | 1,561,028 | SH |
| 25 | M3BRIGADE ACQUISITION V CORP | VLOS | G63212107 | $15.5M | 0.74% | 1,429,725 | SH |
| 26 | CANTOR EQUITY PARTNERS I INC | CEPO | G1827K107 | $15.4M | 0.73% | 1,444,647 | SH |
| 27 | ST JOE CO | JOE | 790148100 | $13.1M | 0.63% | 209,542 | SH |
| 28 | GIGCAPITAL8 CORP | GIW | G3864J100 | $13.0M | 0.62% | 1,289,470 | SH |
| 29 | BERTO ACQUISITION CORP | TACO | G1051H101 | $12.9M | 0.61% | 1,225,999 | SH |
| 30 | ARMADA ACQUISITION CORP II | XRPN | G0R38G104 | $12.9M | 0.61% | 1,233,735 | SH |
| 31 | CROWN RESV ACQUISITION CORP | CRAC | G2574F119 | $12.3M | 0.59% | 1,217,433 | SH |
| 32 | FACT II ACQUISITION CORP | FACT | G32901103 | $12.3M | 0.58% | 1,153,140 | SH |
| 33 | NEW PROVIDENCE ACQUISITION C | NPAC | G6476A102 | $12.2M | 0.58% | 1,179,542 | SH |
| 34 | AMAZON COM INC | AMZN | 023135106 | $11.9M | 0.57% | 50,000 | SH |
| 35 | AMAZON COM INC Put | AMZN | 023135106 | $11.9M | 0.57% | 50,000 | SH |
| 36 | K&F GROWTH ACQUISITION CORP | KFII | G52258111 | $11.9M | 0.57% | 1,124,156 | SH |
| 37 | HENNESSY CAP INVT CORP VII | HVII | G4405D107 | $11.5M | 0.55% | 1,101,473 | SH |
| 38 | QUARTZSEA ACQUISITION CORP | QSEA | G7314B104 | $11.5M | 0.55% | 1,094,190 | SH |
| 39 | COPLEY ACQUISITION CORP | COPL | G24243100 | $11.3M | 0.54% | 1,084,469 | SH |
| 40 | INFLECTION POINT ACQU CORP V | IPEX | G6001J107 | $11.1M | 0.53% | 1,060,952 | SH |
| 41 | JACKSON ACQUISITION CO II | JACS | G4992A110 | $9.9M | 0.47% | 927,836 | SH |
| 42 | FG IMPERII ACQUISITION CORP | FGII | G3R41C102 | $9.9M | 0.47% | 992,100 | SH |
| 43 | CHARLTON ARIA ACQUISITION CO | CHAR | G9877L107 | $9.5M | 0.45% | 878,975 | SH |
| 44 | XSOLLA SPAC 1 | XSLL | G9833K102 | $9.1M | 0.44% | 920,190 | SH |
| 45 | LAUNCH TWO ACQUISITION CORP. | LPBB | G5S87A105 | $9.1M | 0.43% | 847,934 | SH |
| 46 | QUANTUMSPHERE ACQUISITION CO | QUMS | G7387B106 | $9.0M | 0.43% | 881,402 | SH |
| 47 | RF ACQUISITION CORP II | RFAI | G75389109 | $9.0M | 0.43% | 814,851 | SH |
| 48 | SOULPOWER ACQUISITION CORP | SOUL | G82745103 | $9.0M | 0.43% | 866,764 | SH |
| 49 | AMERICAN EXCEPTIONALISM ACQU | AEXA | G0273J101 | $8.8M | 0.42% | 747,779 | SH |
| 50 | GIGCAPITAL9 CORP | GIX | G3865B114 | $8.8M | 0.42% | 882,431 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | $2.10B | 342 | 0000899140-26-000887 |
| 2026-06-30 | 2026-08-24 | $78.4M | 2 | 0000899140-26-000955 |
| 2026-03-31 | 2026-05-15 | $1.86B | 345 | 0000899140-26-000586 |
| 2025-12-31 | 2026-02-13 | $2.13B | 285 | 0000899140-26-000194 |
| 2025-09-30 | 2025-11-14 | $1.74B | 235 | 0000899140-25-001317 |
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GREENWICH, CT 06830