Mairs & Power Inc

Managed by Mairs & Power. $10.39B disclosed long-equity portfolio across 223 positions.

#StockValue% of Portfolio
1MICROSOFT CORP$925.1M8.90%
2NVIDIA CORPORATION$923.1M8.88%
3AMAZON COM INC$598.5M5.76%
4ALPHABET INC$548.4M5.28%
5JPMORGAN CHASE & CO.$411.3M3.96%
6ELI LILLY & CO$371.1M3.57%
7APPLE INC$331.0M3.19%
8GRACO INC$320.1M3.08%
9VISA INC$281.5M2.71%
10UNITEDHEALTH GROUP INC$274.2M2.64%
11TORO CO$269.4M2.59%
12NVENT ELECTRIC PLC$215.3M2.07%
13META PLATFORMS INC$208.9M2.01%
14ECOLAB INC$202.3M1.95%
15MOTOROLA SOLUTIONS INC$201.3M1.94%
16WEC ENERGY GROUP INC$201.3M1.94%
17LITTELFUSE INC$197.0M1.90%
18ALLIANT ENERGY CORP$192.2M1.85%
19FASTENAL CO$187.3M1.80%
20JOHNSON & JOHNSON$166.5M1.60%
21BIO-TECHNE CORP$162.8M1.57%
22WELLS FARGO CO NEW$161.2M1.55%
23SHERWIN WILLIAMS CO$152.2M1.46%
24TAIWAN SEMICONDUCTOR MFG LTD$147.9M1.42%
25FULLER H B CO$143.4M1.38%

For full quarterly history, transactions, and the investor profile, see Mairs & Power's page →

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Mairs & Power Inc — overview

Mairs & Power runs Mairs & Power Inc, a multi-strategy investment firm tracked here via SEC 13F filings. As of the Q4 2025 13F filing, the disclosed long-equity portfolio is valued at $10.4B across 223 positions. The largest holdings are MICROSOFT CORP, NVIDIA CORPORATION, and AMAZON COM INC (MICROSOFT CORP alone is 8.9% of the book).

Key takeaways

  • Disclosed Q4 2025 portfolio: $10.4B.
  • Top holdings: MICROSOFT CORP, NVIDIA CORPORATION, and AMAZON COM INC.