Mairs & Power Growth Fund Portfolio - Sep 30, 2025

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Mairs & Power Growth Fund, Andrew R. Adams, has built a diversified portfolio of 246 publicly traded holdings with a total market value of $10.6B as of Sep 30, 2025. This comprehensive analysis examines the latest 13F filing data to understand the investment strategy and recent portfolio adjustments.

The portfolio demonstrates a diversified approach to stock selection, with the top holding representing 9.8% of the total portfolio value. The top 5 holdings account for 32.4% of the overall portfolio allocation.

Recent portfolio activity shows 10 significant position adjustments, indicating active portfolio management and strategic repositioning. These changes reflect the investor's response to market conditions and evolving investment thesis.

Portfolio Statistics

246
Total Holdings
$10.6B
Portfolio Value
Sep 30, 2025
Latest Filing
9.8%
Largest Position

Top Holdings Analysis

The portfolio's top holdings reveal the investor's core investment thesis and sector preferences. The largest position in NVIDIA CORPORATION (NVDA) represents 9.8% of the total portfolio, valued at $1.0B.

Rank Symbol Company Value Portfolio % Change
1 NVDA NVIDIA CORPORATION $1.0B 9.8% -4.1%
2 MSFT MICROSOFT CORP $987.0M 9.3% -5.0%
3 AMZN AMAZON COM INC $561.2M 5.3% +2.5%
4 JPM JPMORGAN CHASE & CO. $429.5M 4.0% -9.3%
5 GOOG ALPHABET INC $429.3M 4.0% -2.2%

For a complete analysis of all holdings and detailed portfolio breakdown by sector and market cap, visit our comprehensive holdings page.

Recent Portfolio Activity

Recent portfolio adjustments provide insights into the investor's evolving strategy and market outlook. The following table shows the top 10 most significant position changes from recent reporting periods (out of 164 total transactions), sorted by the magnitude of change.

For a complete history of all portfolio transactions and detailed activity analysis, visit our comprehensive activity page.

Symbol Company Quantity Change Date Action
FAST Fastenal Company -653,723 Sep 30, 2025 SELL
CGNX Cognex Corporation +483,517 Sep 30, 2025 BUY
QCOM QUALCOMM Incorporated -280,228 Sep 30, 2025 SELL
NVDA NVIDIA Corporation -236,451 Sep 30, 2025 SELL
DCI Donaldson Company, Inc. -224,066 Sep 30, 2025 SELL
ABT Abbott Laboratories -179,057 Sep 30, 2025 SELL
NVT nVent Electric -170,890 Sep 30, 2025 SELL
KHC The Kraft Heinz Company -150,718 Sep 30, 2025 SELL
JPM JP Morgan Chase & Co. -139,436 Sep 30, 2025 SELL
PFG Principal Financial Group Inc -108,380 Sep 30, 2025 SELL

Investment Strategy Insights

Mairs & Power Growth Fund's investment approach can be analyzed through several key metrics. The portfolio's concentration in top holdings suggests a diversified investment strategy, with significant positions in companies that align with the investor's long-term thesis.

The largest position in NVIDIA CORPORATION (NVDA) demonstrates strong conviction in this particular investment opportunity. Recent activity shows a decrease of 4.1% in this position, indicating active portfolio management and strategic positioning.

Portfolio turnover can be assessed through recent activity patterns. The 10 most significant transactions shown here (out of 164 total transactions) suggest a highly active approach to portfolio management, with frequent strategic adjustments and position changes.

Additional Analysis

Complete Holdings

View all 246 holdings with detailed analysis

Trading Activity

Track all portfolio transactions and position changes

Performance Metrics

Analyze profit, winning trades, and investment returns

Sector Allocation

Analyze portfolio breakdown by sector and industry

Mairs & Power Growth Fund's portfolio as of Sep 30, 2025 reflects a strategic approach to equity investing with 246 holdings valued at $10.6B. The concentrated position in NVIDIA CORPORATION and other top holdings demonstrates the investor's confidence in specific investment themes and long-term value creation opportunities. Recent activity indicates ongoing portfolio optimization and strategic repositioning.

For the most current portfolio data and detailed analysis, refer to the latest SEC 13F filings and our comprehensive holdings and activity pages, which are updated regularly with the latest filing information.

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