Mairs & Power 13F, Q4 2025
Mairs & Power · quarter ending 31 December 2025 · filed 17 February 2026 · SEC CIK 1070134
Common stock only: shares the fund reported owning at the quarter end, valued as filed.
Largest positions, Q4 2025
The 25 largest of 243 positions. Weights are against the whole filed book. Changes are in shares held, against the Q3 2025 filing.
| Company | Ticker | Value | % of book | vs Q3 2025 |
|---|---|---|---|---|
| MICROSOFT CORP | MSFT | $925.11M | 8.9% | unchanged |
| NVIDIA CORPORATION | NVDA | $923.11M | 8.9% | -11% shares |
| AMAZON COM INC | AMZN | $598.46M | 5.8% | unchanged |
| ALPHABET INC | GOOG | $532.82M | 5.1% | -4% shares |
| JPMORGAN CHASE & CO. | JPM | $411.28M | 4.0% | -6% shares |
| ELI LILLY & CO | LLY | $371.14M | 3.6% | -4% shares |
| APPLE INC | AAPL | $330.99M | 3.2% | +3% shares |
| GRACO INC | GGG | $320.14M | 3.1% | unchanged |
| VISA INC | V | $281.45M | 2.7% | unchanged |
| UNITEDHEALTH GROUP INC | UNH | $274.17M | 2.6% | -22% shares |
| TORO CO | TTC | $269.44M | 2.6% | -5% shares |
| NVENT ELECTRIC PLC | $215.28M | 2.1% | -3% shares | |
| META PLATFORMS INC | META | $208.94M | 2.0% | +23% shares |
| ECOLAB INC | ECL | $202.29M | 1.9% | unchanged |
| MOTOROLA SOLUTIONS INC | MSI | $201.33M | 1.9% | +14% shares |
| WEC ENERGY GROUP INC | WEC | $201.30M | 1.9% | +6% shares |
| LITTELFUSE INC | LFUS | $197.01M | 1.9% | -4% shares |
| ALLIANT ENERGY CORP | LNT | $192.23M | 1.9% | unchanged |
| FASTENAL CO | FAST | $187.31M | 1.8% | unchanged |
| JOHNSON & JOHNSON | JNJ | $166.46M | 1.6% | -18% shares |
| BIO-TECHNE CORP | TECH | $162.76M | 1.6% | unchanged |
| WELLS FARGO CO NEW | WFC | $161.17M | 1.6% | -20% shares |
| SHERWIN WILLIAMS CO | SHW | $152.16M | 1.5% | unchanged |
| TAIWAN SEMICONDUCTOR MFG LTD | TSM | $147.86M | 1.4% | unchanged |
| FULLER H B CO | FUL | $143.36M | 1.4% | unchanged |
What changed since Q3 2025
Against the Q3 2025 filing, Mairs & Power opened 11 new positions, added to 33, trimmed 99, left 100 unchanged and exited 16. Every position is compared, matched on its CUSIP; a change of 2% or less in shares counts as unchanged.
New positions
and 3 more
Exited
- JAMFwas $3.19M
- MDYwas $634.3K
- ISHARES TRwas $324.4K
- VONEwas $310.1K
- MDLZwas $282.6K
- CARRwas $241.4K
- CMCSAwas $238.8K
- AJGwas $235.4K
and 8 more
Other quarters
Source: SEC Form 13F-HR, accession 0001172661-26-001057, 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.