BRIGHT ROCK CAPITAL MANAGEMENT, LLC
•CIK: 1509973•Filing: Q4 2025
**BRIGHT ROCK CAPITAL MANAGEMENT, LLC** manages $509M across a portfolio of 77 positions. The firm maintains significant exposure to mega-cap technology and healthcare names, highlighted by top holdings in GOOGL ($32.9M) and MSFT ($31.0M). Further concentration includes substantial allocations to MA ($17.1M), TMO ($15.9M), and AAPL ($15.2M). This structure suggests a core focus on established market leaders within the technology and life sciences sectors.
Total AUM
$508.7M
QoQ Performance
-0.3%
Positions
77
Top 10 Concentration
35.8%
Latest Filing
Q4 2025
Top Holdings Allocation
GOOGL
MSFT
GOOGL6.5%
MSFT6.1%
MA3.4%
TMO3.1%
AAPL3.0%
MRK2.9%
IYE2.8%
TJX2.8%
📈 Biggest Buys
📉 Biggest Sells
Sector Breakdown
Other35.7%
Technology24.9%
Financial14.8%
Healthcare6.1%
Consumer5.5%
Industrial4.4%
Energy2.6%
Materials2.4%
🚪 Exited Positionssold since Q3 2025
Changes from Q3 2025
NEW5 new positions
↑2 increased
↓6 decreased
Historical Filings
Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023