Data as of Q4 2025 (Dec 31, 2025)

SRB CORP

โ€ขCIK: 1496228โ€ขFiling: Q4 2025

**SRB CORP** manages $1.8B across a concentrated portfolio of 23 positions, exhibiting a clear focus on technology and industrials. The fund's top holdings reveal significant allocations to mega-cap tech names, led by Microsoft ($335.1M) and Amazon ($106.3M). Further diversification is evident through substantial positions in sector ETFs like XLK ($122.9M) and XLC ($94.3M), alongside established industrial names such as GE ($113.9M). This structure suggests a conviction-driven, large-cap growth mandate.

Total AUM
$1.8B
QoQ Performance
+4.4%
Positions
23
Top 10 Concentration
70.4%
Latest Filing
Q4 2025

Top Holdings Allocation

MSFT
SAFT
XLK
RNR
GE
AMZN
XLC
MSFT18.4%
SAFT7.9%
XLK6.7%
RNR6.5%
GE6.3%
AMZN5.8%
XLC5.2%
XLV4.7%

๐Ÿ“ˆ Biggest Buys

XLK
SEL SECTOR:TECH SPDR
+113.0%
6.7% of portfolio
XLB
SEL SECTOR:MAT SS SPDR
+100.0%
4.3% of portfolio
XLY
SEL SCTR:C D SS SPDR IN
+100.0%
1.0% of portfolio
CMCSA
COMCAST CL A ORD
+8.9%
1.8% of portfolio

๐Ÿ“‰ Biggest Sells

No reductions this quarter

Sector Breakdown

Other47.8%
Technology26.8%
Consumer10.3%
Industrial6.3%
Healthcare5.0%
Materials2.0%
Communication1.8%

Changes from Q3 2025

โ†‘4 increased

Historical Filings

Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023