Mairs & Power 13F, Q3 2025
Mairs & Power · quarter ending 30 September 2025 · filed 14 November 2025 · SEC CIK 1070134
Common stock only: shares the fund reported owning at the quarter end, valued as filed.
Largest positions, Q3 2025
The 25 largest of 248 positions. Weights are against the whole filed book. Changes are in shares held, against the Q2 2025 filing.
| Company | Ticker | Value | % of book | vs Q2 2025 |
|---|---|---|---|---|
| NVIDIA CORPORATION | NVDA | $1.04B | 9.8% | -4% shares |
| MICROSOFT CORP | MSFT | $986.98M | 9.3% | -5% shares |
| AMAZON COM INC | AMZN | $561.20M | 5.3% | +3% shares |
| JPMORGAN CHASE & CO. | JPM | $429.47M | 4.0% | -9% shares |
| ALPHABET INC | GOOG | $429.28M | 4.0% | -2% shares |
| UNITEDHEALTH GROUP INC | UNH | $369.45M | 3.5% | unchanged |
| GRACO INC | GGG | $334.23M | 3.1% | unchanged |
| APPLE INC | AAPL | $301.16M | 2.8% | +4% shares |
| TORO CO | TTC | $274.36M | 2.6% | unchanged |
| ELI LILLY & CO | LLY | $273.29M | 2.6% | unchanged |
| VISA INC | V | $270.08M | 2.5% | unchanged |
| FASTENAL CO | FAST | $231.42M | 2.2% | -12% shares |
| FISERV INC | FISV | $225.62M | 2.1% | unchanged |
| NVENT ELECTRIC PLC | $215.27M | 2.0% | -7% shares | |
| ECOLAB INC | ECL | $212.80M | 2.0% | unchanged |
| LITTELFUSE INC | LFUS | $210.82M | 2.0% | -6% shares |
| MOTOROLA SOLUTIONS INC | MSI | $210.46M | 2.0% | -3% shares |
| WEC ENERGY GROUP INC | WEC | $205.56M | 1.9% | +20% shares |
| ALLIANT ENERGY CORP | LNT | $201.80M | 1.9% | unchanged |
| META PLATFORMS INC | META | $188.68M | 1.8% | +17% shares |
| JOHNSON & JOHNSON | JNJ | $182.73M | 1.7% | -3% shares |
| WELLS FARGO CO NEW | WFC | $182.09M | 1.7% | unchanged |
| SHERWIN WILLIAMS CO | SHW | $160.68M | 1.5% | unchanged |
| BIO-TECHNE CORP | TECH | $156.18M | 1.5% | +3% shares |
| VERIZON COMMUNICATIONS INC | VZ | $150.05M | 1.4% | unchanged |
What changed since Q2 2025
Against the Q2 2025 filing, Mairs & Power opened 24 new positions, added to 48, trimmed 86, left 90 unchanged and exited 11. Every position is compared, matched on its CUSIP; a change of 2% or less in shares counts as unchanged.
New positions
and 16 more
Exited
- AZEK CO INCwas $1.30M
- DFAEwas $285.2K
- DVYwas $279.6K
- MGNIwas $241.2K
- NVSwas $217.2K
- OTISwas $210.7K
- CMGwas $205.5K
- CLwas $202.2K
and 3 more
Other quarters
Source: SEC Form 13F-HR, accession 0001172661-25-004985, filed by MAIRS & POWER INC. Values are as filed and cover US-listed positions only; a 13F does not show short positions or holdings outside the US. A 13F may be filed up to 45 days after the quarter ends, so the fund may have traded since. Educational information, not financial advice.