Berkley W R Corp
13F filer · CIK 0000011544Reported Aug 24, 2026
Net buyer this quarter
13F portfolio value$2.18BU.S. long equity reported on 13F
Positions31774 new · 76 closed
Net flow last quarter+$178MBuys minus sells
Top 10 positions weight39.4%Concentration
Holdings
13F · last 4 quarters freeScroll for earlier quarters
| Company | Value | % of portfolio | % of company | POSITION CHANGE qoq % | First reported |
|---|---|---|---|---|---|
| Q2 2026Reported Aug 24, 2026317 positions | |||||
| $251M | 11.53% | 0.32% | Not reported | Q3 2021 | |
| $158M | 7.25% | 0.24% | Not reported | Q3 2021 | |
| $90.7M | 4.17% | 0.13% | Not reported | Q4 2020 | |
| $70.9M | 3.26% | 0.45% | +18.6% | Q3 2025 | |
| $69.1M | 3.18% | 0.19% | Not reported | Q2 2022 | |
| $55.7M | 2.56% | 0.00% | Not reported | Q3 2023 | |
| $55.4M | 2.55% | 0.32% | Not reported | Q1 2021 | |
| $45.3M | 2.08% | 0.04% | Not reported | Q4 2025 | |
| ANANSCAgriculture & Natural Solutions Acquisition Corporation | $37.1M | 1.70% | Not reported | +24.3% | Q3 2024 |
| $25M | 1.15% | 0.00% | Not reported | Q2 2024 | |
| $24M | 1.10% | Not reported | +26.4% | Q1 2025 | |
| $23.7M | 1.09% | 0.00% | New | Q2 2026 | |
| $23.3M | 1.07% | 0.02% | Not reported | Q4 2015 | |
| $23M | 1.06% | Not reported | Not reported | Q1 2022 | |
| IPIPCXInflection Point Acquisition Corp. III | $22.8M | 1.05% | Not reported | +25.0% | Q2 2025 |
| $21M | 0.97% | 0.00% | Not reported | Q2 2024 | |
| SISBXDSilverBox Corp IV | $20.9M | 0.96% | Not reported | +27.4% | Q4 2024 |
| $19.1M | 0.88% | Not reported | +1.6% | Q3 2025 | |
| $18.2M | 0.84% | Not reported | +12.6% | Q3 2024 | |
| KDKCHVKochav Defense Acquisition Corp. | $17.5M | 0.81% | Not reported | Not reported | Q3 2025 |
| $16.8M | 0.77% | Not reported | Not reported | Q3 2025 | |
| $16.1M | 0.74% | Not reported | +47.0% | Q3 2025 | |
| VAVLOSVelos Acquisition I Corp. | $15.5M | 0.71% | Not reported | +48.4% | Q3 2024 |
| $15.4M | 0.71% | Not reported | +18.2% | Q1 2025 | |
| $13.1M | 0.60% | 0.37% | Not reported | Q4 2024 | |
| $13M | 0.60% | Not reported | Not reported | Q4 2025 | |
| $12.9M | 0.59% | 16.34% | -32.7% | Q2 2025 | |
| $12.9M | 0.59% | Not reported | Not reported | Q2 2025 | |
| CRCRACCrown Reserve Acquisition Corp. I | $12.3M | 0.57% | Not reported | +169.5% | Q4 2025 |
| $12.3M | 0.56% | Not reported | +254.3% | Q4 2024 | |
| $12.2M | 0.56% | Not reported | +82.8% | Q2 2025 | |
| $11.9M | 0.55% | 0.00% | Not reported | Q4 2023 | |
| KGKFIIK&F Growth Acquisition Corp. II | $11.9M | 0.55% | Not reported | +4.6% | Q1 2025 |
| HCHVIIHennessy Capital Investment Corp. VII | $11.5M | 0.53% | Not reported | +51.2% | Q1 2025 |
| $11.5M | 0.53% | 34.96% | +169.8% | Q2 2025 | |
| CACOPLCopley Acquisition Corp | $11.3M | 0.52% | Not reported | +5.5% | Q2 2025 |
| IPIPEXInflection Point Acquisition Corp. V | $11.1M | 0.51% | Not reported | +8.1% | Q1 2025 |
| $9.87M | 0.45% | Not reported | +115.6% | Q1 2025 | |
| $9.85M | 0.45% | 3.43% | Not reported | Q1 2026 | |
| $9.49M | 0.44% | Not reported | Not reported | Q4 2024 | |
| $9.14M | 0.42% | Not reported | Not reported | Q1 2026 | |
| $9.09M | 0.42% | Not reported | +3.8% | Q4 2024 | |
| QAQUMSQuantumsphere Acquisition Corp | $9.01M | 0.41% | 28.19% | +73.3% | Q4 2025 |
| RARFAIRF Acquisition Corp II | $8.98M | 0.41% | 23.20% | +6.3% | Q3 2024 |
| $8.97M | 0.41% | 3.38% | Not reported | Q2 2025 | |
| AEAEXAAmerican Exceptionalism Acquisition Corp. A | $8.84M | 0.41% | Not reported | +77.6% | Q3 2025 |
| $8.78M | 0.40% | Not reported | Not reported | Q1 2026 | |
| $8.74M | 0.40% | Not reported | +112.6% | Q1 2022 | |
| $8.71M | 0.40% | Not reported | -20.3% | Q3 2024 | |
| SASDHISiddhi Acquisition Corp (Cayman Islands) | $8.6M | 0.40% | Not reported | +74.6% | Q2 2025 |
| Q1 2026Reported May 15, 2026319 positions | |||||
| $258M | 13.87% | 0.32% | Not reported | Q3 2021 | |
| $159M | 8.55% | 0.24% | Not reported | Q3 2021 | |
| $95.1M | 5.11% | 0.13% | Not reported | Q4 2020 | |
| $59.9M | 3.22% | 0.38% | Not reported | Q3 2025 | |
| $52.2M | 2.80% | 0.32% | +42.8% | Q1 2021 | |
| $45.3M | 2.43% | 0.19% | Not reported | Q2 2022 | |
| $41.2M | 2.21% | 0.04% | +93.0% | Q4 2025 | |
| ANANSCAgriculture & Natural Solutions Acquisition Corporation | $29.7M | 1.59% | Not reported | +4.0% | Q3 2024 |
| HAHYACHaymaker Acquisition Corp. 4 | $26.7M | 1.44% | Not reported | +18.2% | Q4 2017 |
| $25M | 1.35% | Not reported | Not reported | Q1 2022 | |
| CECAEPCantor Equity Partners III, Inc. | $23M | 1.24% | Not reported | +111.7% | Q2 2025 |
| MLMLACMountain Lake Acquisition Corp. | $19.8M | 1.06% | Not reported | +418.0% | Q1 2025 |
| $18.9M | 1.01% | Not reported | +572.9% | Q1 2025 | |
| $18.7M | 1.00% | 24.29% | +77.9% | Q2 2025 | |
| $18.7M | 1.00% | Not reported | Not reported | Q3 2025 | |
| $18.5M | 0.99% | 3.77% | +309.8% | Q3 2024 | |
| IPIPCXInflection Point Acquisition Corp. III | $18.1M | 0.97% | Not reported | +49.4% | Q2 2025 |
| KDKCHVKochav Defense Acquisition Corp. | $17.3M | 0.93% | Not reported | +0.2% | Q3 2025 |
| $16.6M | 0.89% | Not reported | +329.3% | Q3 2025 | |
| SISBXDSilverBox Corp IV | $16.2M | 0.87% | Not reported | +25.0% | Q4 2024 |
| LMLEGTLegato Merger Corp. III | $16.1M | 0.87% | 25.84% | +360.0% | Q2 2024 |
| $15.9M | 0.86% | Not reported | +4.5% | Q3 2024 | |
| VAVACHVoyager Acquisition Corp./Cayman Islands | $13.9M | 0.75% | 5.15% | -27.6% | Q4 2024 |
| $13.2M | 0.71% | 0.36% | Not reported | Q4 2024 | |
| $12.9M | 0.69% | Not reported | Not reported | Q4 2025 | |
| $12.8M | 0.69% | Not reported | +26.0% | Q1 2025 | |
| $12.7M | 0.68% | Not reported | +123.5% | Q2 2025 | |
| $12.5M | 0.67% | Not reported | +376.0% | Q3 2024 | |
| KGKFIIK&F Growth Acquisition Corp. II | $11.2M | 0.60% | Not reported | +10.2% | Q1 2025 |
| $10.9M | 0.58% | Not reported | +19.8% | Q3 2025 | |
| $10.8M | 0.58% | Not reported | +15.0% | Q3 2024 | |
| CACOPLCopley Acquisition Corp | $10.6M | 0.57% | Not reported | +10.7% | Q2 2025 |
| VAVLOSVelos Acquisition I Corp. | $10.3M | 0.56% | Not reported | -3.3% | Q3 2024 |
| IPIPEXInflection Point Acquisition Corp. V | $10.2M | 0.55% | Not reported | +29.4% | Q1 2025 |
| LCUBLionheart Holdings | $9.87M | 0.53% | Not reported | +45.1% | Q3 2024 |
| $9.8M | 0.53% | Not reported | New | Q1 2026 | |
| $9.78M | 0.53% | Not reported | +74.9% | Q3 2024 | |
| $9.3M | 0.50% | Not reported | +19.4% | Q4 2024 | |
| GIGPATGP-Act III Acquisition Corp. | $9.18M | 0.49% | Not reported | +171.2% | Q3 2024 |
| PCPGACPANTAGES CAPITAL ACQUISITION Corp | $9.16M | 0.49% | Not reported | +50.3% | Q1 2025 |
| $9.05M | 0.49% | Not reported | New | Q1 2026 | |
| $8.88M | 0.48% | 3.38% | +149.6% | Q2 2025 | |
| $8.67M | 0.47% | Not reported | New | Q1 2026 | |
| $8.67M | 0.47% | Not reported | +33.4% | Q4 2024 | |
| $8.49M | 0.46% | Not reported | +4.6% | Q1 2025 | |
| RARFAIRF Acquisition Corp II | $8.37M | 0.45% | 21.82% | +157.3% | Q3 2024 |
| $8.28M | 0.44% | Not reported | +65.9% | Q1 2025 | |
| $8.01M | 0.43% | Not reported | Not reported | Q4 2025 | |
| $7.91M | 0.43% | 0.00% | Not reported | Q2 2018 | |
| PAPTORPraetorian Acquisition Corp. | $7.8M | 0.42% | Not reported | New | Q1 2026 |
| Q4 2025Reported Feb 13, 2026256 positions | |||||
| $219M | 10.30% | 0.32% | +13.8% | Q3 2021 | |
| $136M | 6.40% | 0.24% | +13.8% | Q3 2021 | |
| $82.6M | 3.89% | 0.00% | +345.3% | Q2 2024 | |
| $78M | 3.67% | 0.13% | Not reported | Q4 2020 | |
| $73.8M | 3.47% | 0.00% | +206.4% | Q3 2023 | |
| $68.7M | 3.23% | 0.00% | +219300.0% | Q4 2017 | |
| $59.9M | 2.82% | 0.00% | +34.1% | Q2 2024 | |
| $48.2M | 2.27% | 0.38% | +39.3% | Q3 2025 | |
| $39.6M | 1.86% | 0.18% | Not reported | Q2 2022 | |
| $35M | 1.65% | 0.22% | Not reported | Q1 2021 | |
| AAAAMApollo Asset Management, Inc. | $34.5M | 1.62% | 323031.90% | Not reported | Q3 2024 |
| ANANSCAgriculture & Natural Solutions Acquisition Corporation | $28.3M | 1.33% | Not reported | -22.3% | Q3 2024 |
| $27M | 1.27% | Not reported | +258.4% | Q3 2024 | |
| $26.1M | 1.23% | Not reported | Not reported | Q1 2022 | |
| $24.5M | 1.15% | 0.02% | New | Q4 2025 | |
| $23.3M | 1.10% | 0.01% | New | Q4 2025 | |
| HAHYACHaymaker Acquisition Corp. 4 | $22.4M | 1.05% | Not reported | +16.9% | Q4 2017 |
| VAVACHVoyager Acquisition Corp./Cayman Islands | $19.2M | 0.90% | 7.12% | +46.1% | Q4 2024 |
| $18.6M | 0.87% | Not reported | +4.5% | Q3 2025 | |
| KDKCHVKochav Defense Acquisition Corp. | $17.1M | 0.80% | Not reported | +15.8% | Q3 2025 |
| $16.1M | 0.76% | 0.00% | -81.6% | Q4 2023 | |
| $15.1M | 0.71% | Not reported | +56.0% | Q3 2024 | |
| $13.7M | 0.65% | 0.01% | Not reported | Q2 2024 | |
| SISBXDSilverBox Corp IV | $12.8M | 0.60% | Not reported | +607.8% | Q4 2024 |
| $12.8M | 0.60% | Not reported | New | Q4 2025 | |
| $12.4M | 0.59% | 0.36% | Not reported | Q4 2024 | |
| IPIPCXInflection Point Acquisition Corp. III | $12M | 0.56% | Not reported | +198.4% | Q2 2025 |
| CECAEPCantor Equity Partners III, Inc. | $10.7M | 0.51% | Not reported | +747.5% | Q2 2025 |
| VAVLOSVelos Acquisition I Corp. | $10.6M | 0.50% | Not reported | +121.8% | Q3 2024 |
| $10.4M | 0.49% | 13.66% | +932.8% | Q2 2025 | |
| $10.1M | 0.48% | Not reported | +467.6% | Q1 2025 | |
| KGKFIIK&F Growth Acquisition Corp. II | $10.1M | 0.47% | Not reported | Not reported | Q1 2025 |
| CACOPLCopley Acquisition Corp | $9.47M | 0.45% | Not reported | Not reported | Q2 2025 |
| $9.23M | 0.43% | Not reported | +34.5% | Q3 2024 | |
| $8.96M | 0.42% | Not reported | +23.6% | Q3 2025 | |
| KVKVACFKeen Vision Acquisition Corp. | $8.81M | 0.41% | 16.97% | +5.0% | Q3 2023 |
| $8.13M | 0.38% | Not reported | New | Q4 2025 | |
| $8.12M | 0.38% | 41.71% | Not reported | Q4 2024 | |
| $8.02M | 0.38% | Not reported | Not reported | Q1 2025 | |
| IPIPEXInflection Point Acquisition Corp. V | $7.79M | 0.37% | Not reported | Not reported | Q1 2025 |
| $7.7M | 0.36% | Not reported | +0.1% | Q4 2024 | |
| HSHSPTHorizon Space Acquisition II Corp. | $7.61M | 0.36% | 33.12% | 0.0% | Q1 2025 |
| $7.55M | 0.36% | Not reported | -21.3% | Q2 2021 | |
| $6.79M | 0.32% | 0.91% | -37.4% | Q4 2024 | |
| LCUBLionheart Holdings | $6.72M | 0.32% | Not reported | 0.0% | Q3 2024 |
| $6.42M | 0.30% | 0.00% | Not reported | Q2 2018 | |
| $6.42M | 0.30% | Not reported | Not reported | Q4 2024 | |
| PCPGACPANTAGES CAPITAL ACQUISITION Corp | $6.03M | 0.28% | Not reported | +9.4% | Q1 2025 |
| $5.96M | 0.28% | 12.61% | Not reported | Q1 2025 | |
| CACHECChenghe Acquisition III Co. | $5.69M | 0.27% | Not reported | New | Q4 2025 |
| Q3 2025Reported Nov 14, 2025210 positions | |||||
| $188M | 10.81% | 0.28% | +17.9% | Q3 2021 | |
| $124M | 7.17% | 0.21% | +14.5% | Q3 2021 | |
| $83M | 4.78% | 0.00% | +55.1% | Q4 2023 | |
| $80.3M | 4.63% | 0.13% | -57.2% | Q4 2020 | |
| $48M | 2.76% | 1.47% | Not reported | Q2 2019 | |
| $44.2M | 2.55% | 0.00% | Not reported | Q2 2024 | |
| $36.1M | 2.08% | 0.18% | Not reported | Q2 2022 | |
| $35.8M | 2.07% | Not reported | Not reported | Q2 2024 | |
| ANANSCAgriculture & Natural Solutions Acquisition Corporation | $35.4M | 2.04% | Not reported | Not reported | Q3 2024 |
| $34.9M | 2.01% | 0.23% | Not reported | Q1 2021 | |
| AAAAMApollo Asset Management, Inc. | $34M | 1.96% | 323031.90% | Not reported | Q3 2024 |
| $32.9M | 1.89% | 0.27% | New | Q3 2025 | |
| $26.7M | 1.54% | Not reported | Not reported | Q1 2022 | |
| $25.8M | 1.49% | 0.00% | Not reported | Q3 2023 | |
| $25.7M | 1.48% | 0.08% | Not reported | Q1 2018 | |
| HAHYACHaymaker Acquisition Corp. 4 | $19.1M | 1.10% | Not reported | +826.0% | Q4 2017 |
| $18.6M | 1.07% | 0.00% | -50.0% | Q2 2024 | |
| $17.6M | 1.02% | Not reported | New | Q3 2025 | |
| NENETDNabors Energy Transition Corp. II | $15.2M | 0.88% | Not reported | -12.1% | Q3 2023 |
| KDKCHVKochav Defense Acquisition Corp. | $14.6M | 0.84% | Not reported | New | Q3 2025 |
| $14.5M | 0.84% | Not reported | +50.3% | Q4 2023 | |
| VAVACHVoyager Acquisition Corp./Cayman Islands | $12.9M | 0.75% | 4.87% | +1.5% | Q4 2024 |
| $10.5M | 0.61% | Not reported | -16.5% | Q4 2024 | |
| $10.4M | 0.60% | 0.36% | Not reported | Q4 2024 | |
| RARFAIRF Acquisition Corp II | $10.1M | 0.58% | 26.70% | +24.3% | Q3 2024 |
| KGKFIIK&F Growth Acquisition Corp. II | $9.96M | 0.57% | Not reported | Not reported | Q1 2025 |
| $9.58M | 0.55% | Not reported | +188.6% | Q3 2024 | |
| CACOPLCopley Acquisition Corp | $9.38M | 0.54% | Not reported | Not reported | Q2 2025 |
| $9.26M | 0.53% | Not reported | Not reported | Q2 2021 | |
| VHVCICVine Hill Capital Investment Corp. | $8.56M | 0.49% | 10.90% | Not reported | Q4 2024 |
| KVKVACFKeen Vision Acquisition Corp. | $8.22M | 0.47% | 16.17% | -31.8% | Q3 2023 |
| $7.98M | 0.46% | 41.71% | Not reported | Q4 2024 | |
| $7.93M | 0.46% | Not reported | Not reported | Q1 2025 | |
| IPIPEXInflection Point Acquisition Corp. V | $7.76M | 0.45% | Not reported | +73.9% | Q1 2025 |
| $7.62M | 0.44% | Not reported | +68.6% | Q4 2024 | |
| HSHSPTHorizon Space Acquisition II Corp. | $7.47M | 0.43% | 33.13% | +7.1% | Q1 2025 |
| $7.45M | 0.43% | Not reported | +8.1% | Q3 2024 | |
| $7.16M | 0.41% | Not reported | New | Q3 2025 | |
| DCDTSQDT Cloud Star Acquisition Corp | $7.05M | 0.41% | 33.68% | +69.5% | Q1 2025 |
| $7.04M | 0.41% | 38.49% | Not reported | Q4 2024 | |
| $6.93M | 0.40% | 0.00% | Not reported | Q2 2018 | |
| $6.78M | 0.39% | Not reported | +99.7% | Q3 2024 | |
| LCUBLionheart Holdings | $6.64M | 0.38% | Not reported | Not reported | Q3 2024 |
| HCHVIIHennessy Capital Investment Corp. VII | $6.58M | 0.38% | Not reported | Not reported | Q1 2025 |
| $6.45M | 0.37% | 12.80% | Not reported | Q2 2025 | |
| $6.4M | 0.37% | Not reported | Not reported | Q4 2024 | |
| AIASPCASPAC III Acquisition Corp. | $6.36M | 0.37% | Not reported | +19.3% | Q1 2025 |
| $6.13M | 0.35% | 2.90% | Not reported | Q3 2024 | |
| $5.9M | 0.34% | 12.61% | Not reported | Q1 2025 | |
| $5.75M | 0.33% | Not reported | Not reported | Q4 2024 | |
Premium opens every quarter this fund has filed