SRB Corp 13F Holdings

CIK 0001496228 · BOSTON, MA

As of Sep 30, 2025, SRB Corp reported 23 positions worth .7B in its SEC Form 13F filing.

Top 23 holdings

SecurityTickerSectorSharesValue% of portfolio
MICROSOFT CORPMSFTTechnology692,923$358.9M20.57%
SAFETY INSURANCE GROUP INCSAFTFinancial Services1,842,284 30.2M7.46%
STATE STREET(R) TECHNOLOGY SELECT SECTOR SPDR(R) ETFXLK—400,624 12.9M6.47%
GE AEROSPACEGEIndustrials369,895 11.3M6.38%
RENAISSANCERE HOLDINGS LTDRNRFinancial Services420,089 06.7M6.11%
AMAZON.COM INCAMZNEquity460,450 01.1M5.79%
THE COMMUNICATION SERVICES SELECT SECTOR SPDR FUNDXLC—800,774$94.8M5.43%
STATE STREET(R) MATERIALS SELECT SECTOR SPDR(R) ETFXLB—864,790$77.5M4.44%
THE HEALTH CARE SELECT SECTOR SPDR FUNDXLVEquity556,818$77.5M4.44%
WALMART INCWMTConsumer Defensive727,050$74.9M4.29%
INTEL CORPINTCTechnology2,185,098$73.3M4.20%
WW GRAINGER INCGWWIndustrials68,199$65.0M3.73%
TOYOTA MOTOR CORPTMConsumer Cyclical298,092$57.0M3.26%
ALPHABET INCGOOGLEquity234,211$56.9M3.26%
PROCTER & GAMBLE COPGConsumer Defensive265,635$40.8M2.34%
MERCK & CO INCMRKHealthcare473,365$39.7M2.28%
CVS HEALTH CORPCVSHealthcare526,855$39.7M2.28%
SHERWIN WILLIAMS COSHWBasic Materials112,070$38.8M2.22%
COMCAST CORPCMCSACommunication Services1,007,150$31.6M1.81%
RELIANCE INCRSBasic Materials98,231$27.6M1.58%
STATE STREET(R) CONSUMER DISCRETIONARY SELECT SECTOR SPDR(R) ETFXLY—77,270 8.5M1.06%
THE INDUSTRIAL SELECT SECTOR SPDR FUNDXLI—33,621$5.2M0.30%
SS CONSUMER STAPLES SEL SECTXLP—59,584$4.7M0.27%