BERKLEY W R CORP
Filing Date
Global Rank
#1,312
/ 8,588
▼ 61
Top Industry
Shell Companies
53.5%
3Y Alpha vs SPY
-7.6%
Period ended 3 months ago
Filed May 15, 2026 · 33d
25 quarters · since Mar 2020
Clone Performance
Jun 2023–Jun 2026 · vs SPYHypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.
Cloned portfolio
+45.4%
SPY
+76.8%
Annualised alpha
-7.6%
Max drawdown
−20.8%
Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.
Portfolio Concentration
194 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025Top Position
15.1%
+3.8 pts
Top 5
36.6%
−5.1 pts
Top 10
46.4%
−12.5 pts
HHI
417
Diversified−42
Portfolio Trend
25 quarters · across all stocks
Sector Breakdown
As of Mar 31, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Financial Services | 56.4% | $963,673,118 |
| Energy | 36.6% | $624,716,246 |
| Technology | 2.6% | $45,270,826 |
| Unclassified | 1.9% | $32,833,122 |
| Industrials | 1.1% | $18,485,013 |
| Real Estate | 0.8% | $13,159,237 |
| Communication Services | 0.5% | $7,914,833 |
| Consumer Defensive | 0.2% | $3,119,393 |
Last Quarter's Activity
Export CSVAdded To
Positions the filer increased
25 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| DRDB | Roman DBDR Acquisition Corp. II | +1,533,196 | 1,800,830 | $18,854,690 | |
| MLAC | Mountain Lake Acquisition Corp. | +1,515,300 | 1,877,833 | $19,773,581 | |
| HDRN | Hadron Energy, Inc. | +1,312,087 | 1,735,682 | $18,485,013 | |
| MCGA | Yorkville Acquisition Corp. | +1,262,223 | 1,645,570 | $16,636,712 | |
| CAEP | Cantor Equity Partners III, Inc. | +1,176,710 | 2,229,948 | $22,990,763 | |
| LEGT | Legato Merger Corp. III | +1,147,470 | 1,466,215 | $16,113,702 | |
| ALF | Centurion Acquisition Corp. | +914,380 | 1,157,544 | $12,455,173 | |
| CCIX | Churchill Capital Corp IX/Cayman | +874,256 | 1,810,437 | $19,335,467 | |
| TACO | Berto Acquisition Corp. | +797,864 | 1,822,598 | $18,681,629 | |
| XRPN | Armada Acquisition Corp. II | +681,754 | 1,233,735 | $12,719,807 | |
| IPCX | Inflection Point Acquisition Corp. III | +585,430 | 1,769,623 | $18,076,698 | |
| GPAT | GP-Act III Acquisition Corp. | +534,533 | 846,823 | $9,179,561 | |
| SOUL | Soulpower Acquisition Corp. | +519,434 | 866,764 | $8,884,331 | |
| VCIC | Vine Hill Capital Investment Corp. | +495,413 | 661,663 | $7,278,293 | |
| RFAI | RF Acquisition Corp II | +468,547 | 766,425 | $8,354,032 | |
| SIMA | SIM Acquisition Corp. I | +390,768 | 912,286 | $9,779,705 | |
| WES | Western Midstream Partners, LP | +379,807 | 1,266,970 | $52,161,154 | |
| HYAC | Haymaker Acquisition Corp. 4 | +357,426 | 2,321,633 | $26,791,644 | |
| DYNC | Dynamix Corp | +314,051 | 790,503 | $8,276,566 | |
| PGAC | PANTAGES CAPITAL ACQUISITION Corp | +292,546 | 874,411 | $9,163,827 | |
| CUB | Lionheart Holdings | +285,106 | 916,973 | $9,866,629 | |
| LOKV | Live Oak Acquisition Corp. V | +270,469 | 647,661 | $6,735,674 | |
| CEPO | Cantor Equity Partners I, Inc. | +251,910 | 1,222,437 | $12,835,588 | |
| HVII | Hennessy Capital Investment Corp. VII | +250,490 | 728,659 | $7,541,620 | |
| SDHI | Siddhi Acquisition Corp (Cayman Islands) | +249,494 | 473,618 | $4,897,210 | |
| No positions match the current search. | |||||
Trimmed
Positions the filer reduced
11 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| KVAC | Keen Vision Acquisition Corp. | −649,375 | 99,997 | $1,199,964 | |
| VACH | Voyager Acquisition Corp./Cayman Islands | −497,241 | 1,303,583 | $15,656,031 | |
| CAPN | Cayson Acquisition Corp | −266,020 | 497,282 | $5,470,102 | |
| RIBB | Ribbon Acquisition Corp. | −165,015 | 297,589 | $3,127,660 | |
| SVAC | Spring Valley Acquisition Corp. III | −158,723 | 39,676 | $403,108 | |
| COLA | Columbus Acquisition Corp/Cayman Islands | −154,772 | 250,259 | $2,627,719 | |
| EGHA | EGH Acquisition Corp. | −41,763 | 107,037 | $1,092,847 | |
| CEPT | Cantor Equity Partners II, Inc. | −36,345 | 27,672 | $301,348 | |
| MBAV | M3-Brigade Acquisition V Corp. | −32,603 | 963,675 | $10,349,869 | |
| TVA | Texas Ventures Acquisition III Corp | −26,500 | 64,694 | $672,170 | |
| ATII | Archimedes Tech SPAC Partners II Co. | −20,141 | 208,065 | $2,165,956 | |
| No positions match the current search. | |||||
New Positions
Positions the filer opened this quarter
25 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| FGII | FG Imperii Acquisition Corp. | 992,100 | $9,821,790 | |
| XSLL | Xsolla SPAC 1 | 920,190 | $9,045,467 | |
| GIX | GigCapital9 Corp. | 882,431 | $8,674,296 | |
| PTOR | Praetorian Acquisition Corp. | 795,690 | $7,797,762 | |
| DAAQ | Digital Asset Acquisition Corp. | 761,331 | $7,796,029 | |
| KTWO | K2 Capital Acquisition Corp | 596,880 | $5,891,205 | |
| SSAC | SPACSphere Acquisition Corp. | 573,350 | $5,676,165 | |
| XFLH | XFLH Capital Corp | 571,683 | $5,642,511 | |
| MLAA | Mountain Lake Acquisition Corp. II | 447,794 | $4,410,770 | |
| ALOV | Aldabra 4 Liquidity Opportunity Vehicle, Inc. | 446,445 | $4,388,554 | |
| CAQ | Cambridge Acquisition Corp. | 424,998 | $4,194,730 | |
| UAC | United Acquisition Corp. I | 422,792 | $4,143,361 | |
| SCII | SC II Acquisition Corp. | 412,893 | $4,116,543 | |
| DBCA | D. Boral Acquisition I Corp. | 397,720 | $3,921,519 | |
| AEAQ | Activate Energy Acquisition Corp. | 347,036 | $3,432,186 | |
| RFAM | RF Acquisition Corp III | 333,057 | $3,260,628 | |
| CLBR | Colombier Acquisition Corp. III | 298,440 | $3,002,306 | |
| HCIC | Hennessy Capital Investment Corp. VIII | 298,440 | $2,933,665 | |
| BIII | Black Spade Acquisition III Co | 273,849 | $2,694,674 | |
| IEAG | Infinite Eagle Acquisition Corp. | 265,211 | $2,652,110 | |
| SVIV | Spring Valley Acquisition Corp. IV | 250,000 | $2,467,500 | |
| CRAN | Crane Harbor Acquisition Corp. II | 247,775 | $2,455,450 | |
| MUZE | Muzero Acquisition Corp | 248,700 | $2,452,182 | |
| WPAC | White Pearl Acquisition Corp. | 248,700 | $2,452,182 | |
| MESH | Meshflow Acquisition Corp | 247,899 | $2,451,721 | |
| No positions match the current search. | ||||
Sold Out
Positions the filer fully exited
12 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| NVDA | Nvidia Corp | 886,200 | $165,276,300 | |
| MSFT | Microsoft Corp | 305,200 | $147,600,824 | |
| GOOGL | Alphabet Inc. | 438,800 | $137,344,400 | |
| TSLA | Tesla, Inc. | 266,600 | $119,895,352 | |
| NFLX | Netflix Inc | 498,000 | $46,692,480 | |
| AMZN | Amazon Com Inc | 139,200 | $32,130,144 | |
| CRM | Salesforce, Inc. | 103,800 | $27,497,658 | |
| FTW | PRESIDIO PRODUCTION Co | 2,574,165 | $27,002,990 | |
| HSPT | Horizon Space Acquisition II Corp. | 722,015 | $7,613,648 | |
| PELI | Pelican Acquisition Corp | 578,199 | $5,869,298 | |
| RDAC | Rising Dragon Acquisition Corp. | 234,886 | $2,306,580 | |
| TBMC | Trailblazer Merger Corp I | 43,243 | $576,083 | |
| No positions match the current search. | ||||
194 positions ·
$1,709,171,788 total
· as of Mar 31, 2026
All sectors
Communication Services
Consumer Defensive
Energy
Financial Services
Industrials
Real Estate
Technology
Showing 51–100
of 194 positions by value
· page 2 of 4
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| VCIC |
Vine Hill Capital Investment Corp.
Financial Services
|
Added | 661,663 | $7,278,293 | 0.43% | |
| LOKV |
Live Oak Acquisition Corp. V
Financial Services
|
Added | 647,661 | $6,735,674 | 0.39% | |
| CCAQ |
Collective Acquisition Corp.
Financial Services
|
Added | 648,960 | $6,703,756 | 0.39% | |
| NPAC |
New Providence Acquisition Corp. III/Cayman
Financial Services
|
Added | 645,429 | $6,622,101 | 0.39% | |
| RANG |
Range Capital Acquisition Corp.
Financial Services
|
Added | 577,081 | $6,070,892 | 0.36% | |
| KTWO |
K2 Capital Acquisition Corp
Financial Services
|
NEW | 596,880 | $5,891,205 | 0.34% | |
| CHEC |
Chenghe Acquisition III Co.
Financial Services
|
Held | 570,610 | $5,751,748 | 0.34% | |
| SSAC |
SPACSphere Acquisition Corp.
Financial Services
|
NEW | 573,350 | $5,676,165 | 0.33% | |
| XFLH |
XFLH Capital Corp
Financial Services
|
NEW | 571,683 | $5,642,511 | 0.33% | |
| CAPN |
Cayson Acquisition Corp
Financial Services
|
Reduced | 497,282 | $5,470,102 | 0.32% | |
| CCII |
Cohen Circle Acquisition Corp. II
Financial Services
|
Held | 525,621 | $5,371,846 | 0.31% | |
| BEAG |
Bold Eagle Acquisition Corp.
Financial Services
|
Held | 508,724 | $5,369,581 | 0.31% | |
| QUMS |
Quantumsphere Acquisition Corp
Financial Services
|
Added | 508,540 | $5,146,424 | 0.30% | |
| TACH |
Titan Acquisition Corp.
Financial Services
|
Held | 496,400 | $5,107,956 | 0.30% | |
| GTEN |
Gores Holdings X, Inc. / CI
Financial Services
|
Held | 492,370 | $5,041,868 | 0.29% | |
| ALDF |
Aldel Financial II Inc.
Financial Services
|
Added | 474,710 | $5,012,937 | 0.29% | |
| POLE |
Andretti Acquisition Corp. II
Financial Services
|
Added | 462,495 | $4,923,259 | 0.29% | |
| SDHI |
Siddhi Acquisition Corp (Cayman Islands)
Financial Services
|
Added | 473,618 | $4,897,210 | 0.29% | |
| OYSE |
Oyster Enterprises II Acquisition Corp
Financial Services
|
Held | 475,872 | $4,839,618 | 0.28% | |
| FSHP |
Flag Ship Acquisition Corp
Financial Services
|
Added | 434,420 | $4,748,210 | 0.28% | |
| AEXA |
American Exceptionalism Acquisition Corp. A
Financial Services
|
Added | 421,159 | $4,561,151 | 0.27% | |
| JACS |
Jackson Acquisition Co II
Financial Services
|
Added | 430,362 | $4,557,533 | 0.27% | |
| NMP |
NMP Acquisition Corp.
Financial Services
|
Held | 445,304 | $4,524,288 | 0.26% | |
| CRAC |
Crown Reserve Acquisition Corp. I
Financial Services
|
Added | 451,723 | $4,521,747 | 0.26% | |
| BACC |
Blue Acquisition Corp/Cayman
Financial Services
|
Added | 441,650 | $4,509,246 | 0.26% | |
| BSAA |
BEST SPAC I Acquisition Corp.
Financial Services
|
Added | 437,808 | $4,491,910 | 0.26% | |
| MLAA |
Mountain Lake Acquisition Corp. II
|
NEW | 447,794 | $4,410,770 | 0.26% | |
| ALOV |
Aldabra 4 Liquidity Opportunity Vehicle, Inc.
Financial Services
|
NEW | 446,445 | $4,388,554 | 0.26% | |
| WTG |
Wintergreen Acquisition Corp.
Financial Services
|
Added | 427,111 | $4,386,429 | 0.26% | |
| SPEG |
Silver Pegasus Acquisition Corp.
Financial Services
|
Held | 415,865 | $4,233,505 | 0.25% | |
| UYSC |
UY Scuti Acquisition Corp.
Financial Services
|
Added | 407,586 | $4,230,742 | 0.25% | |
| QSEA |
Quartzsea Acquisition Corp
Financial Services
|
Added | 405,549 | $4,205,543 | 0.25% | |
| CAQ |
Cambridge Acquisition Corp.
Financial Services
|
NEW | 424,998 | $4,194,730 | 0.25% | |
| RTAC |
Renatus Tactical Acquisition Corp I
Financial Services
|
Added | 403,883 | $4,151,917 | 0.24% | |
| UAC |
United Acquisition Corp. I
Financial Services
|
NEW | 422,792 | $4,143,361 | 0.24% | |
| SCII |
SC II Acquisition Corp.
Financial Services
|
NEW | 412,893 | $4,116,543 | 0.24% | |
| AACB |
Artius II Acquisition Inc.
Financial Services
|
Held | 396,960 | $4,104,566 | 0.24% | |
| SZZL |
Sizzle Acquisition Corp. II
Financial Services
|
Held | 396,768 | $4,078,775 | 0.24% | |
| CGCT |
Cartesian Growth Corp III
Financial Services
|
Held | 393,552 | $4,035,875 | 0.24% | |
| FVN |
Future Vision II Acquisition Corp.
Financial Services
|
Added | 371,104 | $3,978,234 | 0.23% | |
| KOYN |
CSLM Digital Asset Acquisition Corp III, Ltd
Financial Services
|
Held | 396,106 | $3,976,904 | 0.23% | |
| YCY |
AA Mission Acquisition Corp. II
Financial Services
|
Added | 392,235 | $3,949,806 | 0.23% | |
| DBCA |
D. Boral Acquisition I Corp.
Financial Services
|
NEW | 397,720 | $3,921,519 | 0.23% | |
| HCMA |
Hcm III Acquisition Corp.
Financial Services
|
Added | 388,407 | $3,915,142 | 0.23% | |
| LATA |
Galata Acquisition Corp. II
Financial Services
|
Held | 371,961 | $3,715,890 | 0.22% | |
| BKHA |
Black Hawk Acquisition Corp
Financial Services
|
Held | 309,134 | $3,582,863 | 0.21% | |
| AEAQ |
Activate Energy Acquisition Corp.
Financial Services
|
NEW | 347,036 | $3,432,186 | 0.20% | |
| FACT |
FACT II Acquisition Corp.
|
Added | 325,445 | $3,417,172 | 0.20% | |
| HVMC |
Highview Merger Corp.
Financial Services
|
Held | 333,856 | $3,355,252 | 0.20% | |
| AIIA |
AI Infrastructure Acquisition Corp.
Financial Services
|
Added | 330,294 | $3,312,848 | 0.19% |