SRB Corp.
In its 13F for Q1 2024 (holdings as of March 31, 2024, filed May 14, 2024), SRB Corp. reported 75 stock positions worth $1.8 billion. Its top holding was Microsoft (MSFT) at 17.4% of the portfolio, followed by Merck (MRK, 9.7%) and Safety Insurance (SAFT, 8.4%). Compared with Q4 2023, it opened 14 new positions, sold out of 29, added to 41 and reduced 16. The biggest buy was a new position in FedEx (FDX) and the biggest sale Intel (INTC, shares −6%).
- Most Recent 13F
- Q2 2026
- Location
- BOSTON, MA
- CIK
- 0001496228
- Portfolio Value
- $1.8B (Q1 2024)
- SEC Filing
- 0000904454-24-000309 ↗ filed May 14, 2024
Holdings Value
Holdings 75 stocks · $1.8B
| MSFT Microsoft Corp. | 17.44% | 748,727 | $315.0M | No change |
| MRK Merck & Co. Inc. | 9.70% | 1,327,587 | $175.2M | No change |
| SAFT Safety Insurance Group Inc. | 8.39% | 1,842,284 | $151.4M | No change |
| INTC Intel Corp. | 5.90% | 2,411,647 | $106.5M | Reduce -5.9% |
| RNR Renaissancere Holdings Ltd. | 5.87% | 450,926 | $106.0M | Reduce -4.5% |
| BRK.B Berkshire Hathaway Inc. Class B | 5.01% | 215,269 | $90.5M | Reduce -4.9% |
| CVS CVS Health Corp. | 5.00% | 1,131,646 | $90.3M | Reduce -5.6% |
| TM Toyota Motor Corp. -Spon ADR | 4.36% | 312,904 | $78.8M | Reduce -6.1% |
| AMZN Amazon.com Inc. | 4.33% | 433,793 | $78.2M | Reduce -4.5% |
| SHW The Sherwin-Williams Co. | 4.23% | 219,979 | $76.4M | Reduce -4.7% |
| RS Reliance Inc. | 3.88% | 209,864 | $70.1M | Reduce -4.8% |
| GE General Electric | 3.85% | 396,579 | $69.6M | Reduce -5.3% |
| GWW WW Grainger Inc. filed as GRAINGER W W INC | 3.64% | 64,593 | $65.7M | Reduce -4.2% |
| GOOGL Alphabet Inc. Class A | 3.08% | 368,977 | $55.7M | Reduce -4.4% |
| AON Aon PLC Class A | 2.84% | 153,426 | $51.2M | Reduce -38.0% |
| ERIC Ericsson (lm) Tel-SP ADR filed as TELEFONAKTIEBOLAGET LM ERICS | 2.77% | 9,077,031 | $50.0M | Reduce -11.1% |
| WMT Walmart Inc. | 2.60% | 779,202 | $46.9M | Reduce -4.0% |
| PG The Procter & Gamble Co. | 2.56% | 285,092 | $46.3M | Reduce -4.3% |
| VRSK Verisk Analytics Inc. | 2.28% | 174,575 | $41.2M | Reduce -0.9% |
| FDX FedEx Corp. | 0.05% | 2,872 | $832K | New |
| GRMN Garmin Ltd. | 0.05% | 5,589 | $832K | Add +33.4% |
| KR Kroger Co. | 0.05% | 14,243 | $814K | Add +22.1% |
| CAT Caterpillar Inc. | 0.04% | 2,182 | $800K | Add +8.3% |
| HUBB Hubbell Inc. | 0.04% | 1,926 | $799K | Add +11.6% |
| AZO AutoZone Inc. | 0.04% | 252 | $794K | Add +29.9% |
| PCAR Paccar Inc. | 0.04% | 6,400 | $793K | Add +15.4% |
| MLM Martin Marietta Materials | 0.04% | 1,288 | $791K | Add +16.3% |
| COP Conocophillips | 0.04% | 6,200 | $789K | New |
| CTRA Coterra Energy Inc. | 0.04% | 27,906 | $778K | Add +36.9% |
| AOS Smith (a.o.) Corp. | 0.04% | 8,657 | $774K | New |
| PKG Packaging Corp. of America | 0.04% | 4,003 | $760K | Add +23.7% |
| SNA Snap-on Inc. | 0.04% | 2,561 | $759K | Add +37.3% |
| HIG Hartford Insurance Group Inc. | 0.04% | 7,348 | $757K | Add +11.5% |
| EQT Eqt Corp. | 0.04% | 20,267 | $751K | New |
| NVR NVR Inc. | 0.04% | 92 | $745K | Add +12.2% |
| PGR Progressive Corp. | 0.04% | 3,603 | $745K | New |
| ORLY O'reilly Automotive Inc. | 0.04% | 658 | $743K | Add +23.2% |
| MAS Masco Corp. | 0.04% | 9,388 | $741K | Add +10.3% |
| AIZ Assurant Inc. | 0.04% | 3,905 | $735K | Add +28.6% |
| WRB WR Berkley Corp. filed as BERKLEY W R CORP | 0.04% | 8,309 | $735K | Add +17.0% |
| IEX Idex Corp. | 0.04% | 3,006 | $734K | New |
| TAP Molson Coors Beverage Co. Class B | 0.04% | 10,881 | $732K | New |
| CI The Cigna Group | 0.04% | 2,005 | $728K | New |
| HD Home Depot Inc. | 0.04% | 1,896 | $727K | Add +17.5% |
| L Loews Corp. | 0.04% | 9,259 | $725K | Add +23.4% |
| CDW CDW Corp. | 0.04% | 2,833 | $725K | New |
| MCK McKesson Corp. | 0.04% | 1,346 | $723K | Add +21.5% |
| EXPD Expeditors Intl Wash Inc. | 0.04% | 5,936 | $722K | Add +37.1% |
| J Jacobs Solutions Inc. | 0.04% | 4,694 | $722K | Add +14.8% |
| TRV The Travelers Cos Inc. | 0.04% | 3,135 | $721K | Add +10.9% |
| ITW Illinois Tool Works | 0.04% | 2,684 | $720K | Add +26.5% |
| GD General Dynamics Corp. | 0.04% | 2,548 | $720K | Add +21.2% |
| LW Lamb Weston Holdings Inc. | 0.04% | 6,723 | $716K | Add +30.4% |
| CMCSA Comcast Corp. Class A | 0.04% | 16,514 | $716K | Add +35.0% |
| FFIV F5 Inc. | 0.04% | 3,775 | $716K | Add +26.5% |
| COR Cencora Inc. | 0.04% | 2,940 | $714K | Add +14.9% |
| ATO Atmos Energy Corp. | 0.04% | 5,998 | $713K | Add +31.6% |
| CB Chubb Ltd. | 0.04% | 2,735 | $709K | Add +19.6% |
| MOH Molina Healthcare Inc. | 0.04% | 1,720 | $707K | Add +21.9% |
| PPG PPG Industries Inc. | 0.04% | 4,865 | $705K | Add +33.5% |
| MRSH Marsh & McLennan Cos | 0.04% | 3,401 | $701K | New |
| HII Huntington Ingalls Industrie | 0.04% | 2,403 | $700K | Add +12.0% |
| ELV Elevance Health Inc. | 0.04% | 1,344 | $697K | Add +24.2% |
| REGN Regeneron Pharmaceuticals | 0.04% | 724 | $697K | Add +13.5% |
| KO The Coca-Cola Co. | 0.04% | 11,373 | $696K | Add +28.0% |
| CME Cme Group Inc. | 0.04% | 3,228 | $695K | Add +37.8% |
| CSX CSX Corp. | 0.04% | 18,665 | $692K | Add +22.3% |
| JNJ Johnson & Johnson | 0.04% | 4,351 | $688K | New |
| PAYX Paychex Inc. | 0.04% | 5,530 | $679K | New |
| CNC Centene Corp. | 0.04% | 8,614 | $676K | New |
| ADP Automatic Data Processing | 0.04% | 2,693 | $673K | New |
| ALLE Allegion PLC | 0.04% | 4,930 | $664K | No change |
| CTSH Cognizant Tech Solutions-A | 0.04% | 8,916 | $653K | Add +20.2% |
| UNH Unitedhealth Group Inc. | 0.04% | 1,318 | $652K | Add +39.3% |
| GL Globe Life Inc. | 0.04% | 5,450 | $634K | Add +30.1% |
Portfolio Sells Q4 2023 → Q1 2024
| INTC Intel Corp. | Reduce -5.9% | 5.90% | −1.71 |
| AON Aon PLC Class A | Reduce -38.0% | 2.84% | −1.42 |
| ERIC Ericsson (lm) Tel-SP ADR | Reduce -11.1% | 2.77% | −1.03 |
| CVS CVS Health Corp. | Reduce -5.6% | 5.00% | −0.59 |
| VRSK Verisk Analytics Inc. | Reduce -0.9% | 2.28% | −0.21 |
| GOOGL Alphabet Inc. Class A | Reduce -4.4% | 3.08% | −0.10 |
| DHI D.R. Horton Inc. | Sold out | 0.00% | −0.04 |
| VRTX Vertex Pharmaceuticals Inc. | Sold out | 0.00% | −0.04 |
| PSA Public Storage | Sold out | 0.00% | −0.03 |
| ADI Analog Devices Inc. | Sold out | 0.00% | −0.03 |
| TXN Texas Instruments Inc. | Sold out | 0.00% | −0.03 |
| TT Trane Technologies PLC | Sold out | 0.00% | −0.03 |
| UNP Union Pacific Corp. | Sold out | 0.00% | −0.03 |
| CSCO Cisco Systems Inc. | Sold out | 0.00% | −0.03 |
| JBHT Hunt (jb) Transprt SVCS Inc. | Sold out | 0.00% | −0.03 |
| TJX TJX Companies Inc. | Sold out | 0.00% | −0.03 |
| EBAY eBay Inc. | Sold out | 0.00% | −0.03 |
| CMI Cummins Inc. | Sold out | 0.00% | −0.03 |
| BKR Baker Hughes Co. | Sold out | 0.00% | −0.03 |
| GILD Gilead Sciences Inc. | Sold out | 0.00% | −0.03 |
| JNPR Juniper Networks Inc. | Sold out | 0.00% | −0.03 |
| FISV Fiserv Inc. | Sold out | 0.00% | −0.03 |
| LMT Lockheed Martin Corp. | Sold out | 0.00% | −0.03 |
| IBM Intl Business Machines Corp. | Sold out | 0.00% | −0.03 |
| CINF Cincinnati Financial Corp. | Sold out | 0.00% | −0.03 |
| KMB Kimberly-Clark Corp. | Sold out | 0.00% | −0.03 |
| SBUX Starbucks Corp. | Sold out | 0.00% | −0.03 |
| XOM Exxon Mobil Corp. | Sold out | 0.00% | −0.03 |
| EOG EOG Resources Inc. | Sold out | 0.00% | −0.03 |
| IP International Paper Co. | Sold out | 0.00% | −0.03 |
| NOC Northrop Grumman Corp. | Sold out | 0.00% | −0.03 |
| MO Altria Group Inc. | Sold out | 0.00% | −0.03 |
| BG Bunge Ltd. | Sold out | 0.00% | −0.03 |
| HUM Humana Inc. | Sold out | 0.00% | −0.03 |
| EG Everest Group Ltd. | Sold out | 0.00% | −0.03 |
| SHW The Sherwin-Williams Co. | Reduce -4.7% | 4.23% | −0.02 |
| PG The Procter & Gamble Co. | Reduce -4.3% | 2.56% | −0.02 |
| WMT Walmart Inc. | Reduce -4.0% | 2.60% | +0.08 |
| RS Reliance Inc. | Reduce -4.8% | 3.88% | +0.24 |
| BRK.B Berkshire Hathaway Inc. Class B | Reduce -4.9% | 5.01% | +0.24 |
| AMZN Amazon.com Inc. | Reduce -4.5% | 4.33% | +0.26 |
| GWW WW Grainger Inc. | Reduce -4.2% | 3.64% | +0.34 |
| RNR Renaissancere Holdings Ltd. | Reduce -4.5% | 5.87% | +0.40 |
| GE General Electric | Reduce -5.3% | 3.85% | +0.70 |
| TM Toyota Motor Corp. -Spon ADR | Reduce -6.1% | 4.36% | +0.75 |
Portfolio Buys Q4 2023 → Q1 2024
| FDX FedEx Corp. | New | 0.05% | +0.05 |
| COP Conocophillips | New | 0.04% | +0.04 |
| AOS Smith (a.o.) Corp. | New | 0.04% | +0.04 |
| EQT Eqt Corp. | New | 0.04% | +0.04 |
| PGR Progressive Corp. | New | 0.04% | +0.04 |
| IEX Idex Corp. | New | 0.04% | +0.04 |
| TAP Molson Coors Beverage Co. Class B | New | 0.04% | +0.04 |
| CI The Cigna Group | New | 0.04% | +0.04 |
| CDW CDW Corp. | New | 0.04% | +0.04 |
| MRSH Marsh & McLennan Cos | New | 0.04% | +0.04 |
| JNJ Johnson & Johnson | New | 0.04% | +0.04 |
| PAYX Paychex Inc. | New | 0.04% | +0.04 |
| CNC Centene Corp. | New | 0.04% | +0.04 |
| ADP Automatic Data Processing | New | 0.04% | +0.04 |
| AZO AutoZone Inc. | Add +29.9% | 0.04% | +0.01 |
| GRMN Garmin Ltd. | Add +33.4% | 0.05% | +0.01 |
| KR Kroger Co. | Add +22.1% | 0.05% | +0.01 |
| CTRA Coterra Energy Inc. | Add +36.9% | 0.04% | +0.01 |
| PCAR Paccar Inc. | Add +15.4% | 0.04% | +0.01 |
| ORLY O'reilly Automotive Inc. | Add +23.2% | 0.04% | +0.01 |
| MLM Martin Marietta Materials | Add +16.3% | 0.04% | +0.01 |
| WRB WR Berkley Corp. | Add +17.0% | 0.04% | +0.01 |
| PKG Packaging Corp. of America | Add +23.7% | 0.04% | +0.01 |
| HUBB Hubbell Inc. | Add +11.6% | 0.04% | +0.01 |
| HIG Hartford Insurance Group Inc. | Add +11.5% | 0.04% | +0.01 |
| AIZ Assurant Inc. | Add +28.6% | 0.04% | +0.01 |
| SNA Snap-on Inc. | Add +37.3% | 0.04% | +0.01 |
| MCK McKesson Corp. | Add +21.5% | 0.04% | +0.01 |
| CME Cme Group Inc. | Add +37.8% | 0.04% | +0.01 |
| L Loews Corp. | Add +23.4% | 0.04% | +0.01 |
| CAT Caterpillar Inc. | Add +8.3% | 0.04% | +0.01 |
| MOH Molina Healthcare Inc. | Add +21.9% | 0.04% | +0.01 |
| CB Chubb Ltd. | Add +19.6% | 0.04% | +0.01 |
| J Jacobs Solutions Inc. | Add +14.8% | 0.04% | +0.01 |
| COR Cencora Inc. | Add +14.9% | 0.04% | +0.01 |
| ELV Elevance Health Inc. | Add +24.2% | 0.04% | +0.01 |
| ATO Atmos Energy Corp. | Add +31.6% | 0.04% | +0.01 |
| FFIV F5 Inc. | Add +26.5% | 0.04% | +0.01 |
| TRV The Travelers Cos Inc. | Add +10.9% | 0.04% | +0.01 |
| CMCSA Comcast Corp. Class A | Add +35.0% | 0.04% | +0.01 |
| KO The Coca-Cola Co. | Add +28.0% | 0.04% | +0.01 |
| GD General Dynamics Corp. | Add +21.2% | 0.04% | +0.01 |
| EXPD Expeditors Intl Wash Inc. | Add +37.1% | 0.04% | +0.01 |
| NVR NVR Inc. | Add +12.2% | 0.04% | +0.01 |
| HD Home Depot Inc. | Add +17.5% | 0.04% | +0.01 |
| MAS Masco Corp. | Add +10.3% | 0.04% | +0.01 |
| CSX CSX Corp. | Add +22.3% | 0.04% | +0.01 |
| ITW Illinois Tool Works | Add +26.5% | 0.04% | +0.01 |
| PPG PPG Industries Inc. | Add +33.5% | 0.04% | +0.01 |
| LW Lamb Weston Holdings Inc. | Add +30.4% | 0.04% | +0.01 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 23 | $1.9B | XLK, MSFT, INTC, SAFT, RNR |
| Q1 2026 | 23 | $1.6B | MSFT, SAFT, RNR, XLK, INTC |
| Q4 2025 | 23 | $1.8B | MSFT, SAFT, XLK, RNR, GE |
| Q3 2025 | 23 | $1.7B | MSFT, SAFT, XLK, GE, RNR |
| Q2 2025 | 23 | $1.7B | MSFT, SAFT, AMZN, RNR, GE |
| Q1 2025 | 23 | $1.5B | MSFT, SAFT, MRK, XLK, RNR |
| Q4 2024 | 23 | $1.7B | MSFT, VGT, SAFT, MRK, RNR |
| Q3 2024 | 18 | $1.8B | MSFT, SAFT, MRK, RNR, INTC |
| Q2 2024 | 19 | $1.7B | MSFT, MRK, SAFT, INTC, RNR |
| Q1 2024 | 75 | $1.8B | MSFT, MRK, SAFT, INTC, RNR |