Mainstream Capital Management LLC
•CIK: 2043084•Filing: Q4 2025
**Mainstream Capital Management LLC** is an actively managed fund overseeing $153M across 88 distinct positions. The portfolio exhibits significant concentration in mega-cap technology names, with JPST representing the largest holding at $20.7M. Further notable allocations include AAPL ($9.7M), AMZN ($7.3M), and GOOG ($6.3M), indicating a core focus on established growth leaders. This structure suggests a conviction-driven, large-cap equity mandate.
Total AUM
$152.8M
QoQ Performance
+1.6%
Positions
88
Top 10 Concentration
46.5%
Latest Filing
Q4 2025
Top Holdings Allocation
JPST
AAPL
JPST13.6%
AAPL6.4%
AMZN4.8%
GSST4.2%
GOOG4.1%
NVDA3.4%
META3.3%
IWF2.7%
📈 Biggest Buys
📉 Biggest Sells
Sector Breakdown
Other51.6%
Technology22.9%
Consumer11.4%
Financial7.1%
ETF3.5%
Healthcare1.6%
Communication1.6%
Industrial0.3%
Changes from Q3 2025
NEW3 new positions
↑13 increased
↓63 decreased
Historical Filings
Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024