Mairs & Power portfolio: Q2 2026 13F
Every US-listed position Mairs & Power reported in its 13F for Q2 2026, the quarter ended Jun 30, 2026, filed with the SEC on Aug 14, 2026. 254 positions at the quarter end, after opening 17 and exiting 8 during it.
50 largest positions
| Ticker | Company | Allocation | Value | Shares | Change |
|---|---|---|---|---|---|
| NVDA | NVIDIA Corp | 8.64% | $941.98M | 4,707,792 | Trimmed |
| MSFT | Microsoft Corp | 6.68% | $727.66M | 1,950,737 | Added |
| AMZN | Amazon.com Inc | 5.68% | $619.55M | 2,599,441 | Trimmed |
| GOOG | Alphabet Inc. | 5.46% | $594.81M | 1,683,439 | Added |
| LLY | Eli Lilly & Co | 3.54% | $386.37M | 322,129 | Trimmed |
| NVT | nVent Electric plc | 3.19% | $348.18M | 2,052,813 | Trimmed |
| AAPL | Apple Inc. | 3.02% | $329.42M | 1,138,448 | Trimmed |
| JPM | JPMorgan Chase & Co | 2.77% | $302.31M | 923,550 | Trimmed |
| V | Visa Inc. | 2.68% | $292.33M | 852,050 | Added |
| GGG | Graco Inc | 2.63% | $287.13M | 3,797,451 | Trimmed |
| LFUS | Littelfuse Inc | 2.52% | $274.16M | 602,104 | Trimmed |
| TTC | Toro Co | 2.39% | $260.74M | 2,676,474 | Trimmed |
| ENTG | Entegris Inc | 2.15% | $234.11M | 1,301,640 | Trimmed |
| UNH | UnitedHealth Group Inc | 2.14% | $232.73M | 559,951 | Trimmed |
| TSM | Taiwan Semiconductor Manufacturing Co Ltd | 2.09% | $227.44M | 476,245 | Trimmed |
| MSI | Motorola Solutions, Inc. | 2.08% | $226.28M | 544,876 | Added |
| ECL | Ecolab Inc. | 1.99% | $216.63M | 777,541 | Added |
| WEC | WEC Energy Group, Inc. | 1.92% | $208.77M | 1,787,905 | Trimmed |
| PANW | Palo Alto Networks Inc | 1.88% | $204.56M | 599,841 | Added |
| LNT | Alliant Energy Corp | 1.86% | $202.77M | 2,657,913 | Trimmed |
| TECH | Bio-Techne Corp | 1.75% | $190.80M | 2,700,698 | Trimmed |
| META | Meta Platforms, Inc. | 1.72% | $187.50M | 332,871 | Added |
| FAST | Fastenal Co | 1.71% | $185.92M | 3,870,891 | Trimmed |
| SHW | Sherwin-Williams Co | 1.39% | $151.70M | 440,586 | Added |
| CHRW | C. H. Robinson Worldwide, Inc. | 1.33% | $145.16M | 770,708 | Trimmed |
| FUL | Fuller H B Co | 1.30% | $141.95M | 2,435,168 | Added |
| VZ | Verizon Communications Inc | 1.28% | $139.38M | 3,291,850 | Trimmed |
| WM | Waste Management Inc | 1.21% | $131.73M | 591,025 | Added |
| ROK | Rockwell Automation, Inc | 1.17% | $127.64M | 257,811 | Trimmed |
| FISV | Fiserv Inc | 1.03% | $112.47M | 2,293,029 | Added |
| JNJ | Johnson & Johnson | 0.99% | $107.43M | 423,010 | Trimmed |
| AMP | Ameriprise Financial Inc | 0.90% | $98.20M | 214,056 | Added |
| CGNX | Cognex Corp | 0.87% | $94.71M | 1,307,856 | Added |
| HRL | Hormel Foods Corp | 0.77% | $84.34M | 3,398,047 | Trimmed |
| CASY | Casey's General Stores Inc | 0.66% | $72.43M | 91,125 | Trimmed |
| WFC | Wells Fargo & Company | 0.66% | $72.08M | 872,186 | Trimmed |
| AJG | Arthur J. Gallagher & Co. | 0.66% | $71.52M | 311,539 | New |
| ABT | Abbott Laboratories | 0.61% | $66.18M | 729,358 | Added |
| TXN | Texas Instruments Inc | 0.59% | $64.82M | 217,453 | Trimmed |
| TNC | Tennant Co | 0.55% | $59.68M | 681,800 | Trimmed |
| ISRG | Intuitive Surgical Inc | 0.53% | $58.24M | 146,459 | Added |
| MMM | 3M Co | 0.52% | $56.56M | 349,350 | Trimmed |
| HD | Home Depot, Inc. | 0.49% | $53.77M | 152,452 | Trimmed |
| TRV | Travelers Companies, Inc. | 0.47% | $51.66M | 156,482 | Added |
| AXP | American Express Co | 0.45% | $49.25M | 145,612 | Trimmed |
| IDA | IDACORP Inc | 0.43% | $46.90M | 309,970 | Added |
| MEDP | Medpace Holdings, Inc. | 0.42% | $45.92M | 86,715 | Added |
| CME | CME Group Inc. | 0.40% | $43.19M | 195,585 | New |
| DCI | Donaldson Co Inc | 0.38% | $41.63M | 463,717 | Trimmed |
| WK | Workiva Inc | 0.37% | $40.24M | 829,491 | Added |
Showing the 50 largest of 254 positions by allocation. The full portfolio, sortable by value, allocation and share count, loads below.
What changed in Q2 2026
| Action | Ticker | Company | Share change | Value |
|---|---|---|---|---|
| Trimmed | NVDA | NVIDIA Corp | -53,559 | $941.98M |
| Added | MSFT | Microsoft Corp | +8,346 | $727.66M |
| Trimmed | AMZN | Amazon.com Inc | -3,471 | $619.55M |
| Added | GOOG | Alphabet Inc. | +71,829 | $594.81M |
| Trimmed | LLY | Eli Lilly & Co | -4,177 | $386.37M |
| Trimmed | NVT | nVent Electric plc | -13,607 | $348.18M |
| Trimmed | AAPL | Apple Inc. | -69,950 | $329.42M |
| Trimmed | JPM | JPMorgan Chase & Co | -130,647 | $302.31M |
| Added | V | Visa Inc. | +11,133 | $292.33M |
| Trimmed | GGG | Graco Inc | -18,233 | $287.13M |
| Trimmed | LFUS | Littelfuse Inc | -122,606 | $274.16M |
| Trimmed | TTC | Toro Co | -42,509 | $260.74M |
| Trimmed | ENTG | Entegris Inc | -41,464 | $234.11M |
| Trimmed | UNH | UnitedHealth Group Inc | -181,132 | $232.73M |
| Trimmed | TSM | Taiwan Semiconductor Manufacturing Co Ltd | -10,008 | $227.44M |
| Added | MSI | Motorola Solutions, Inc. | +4,144 | $226.28M |
| Added | ECL | Ecolab Inc. | +15,723 | $216.63M |
| Trimmed | WEC | WEC Energy Group, Inc. | -122,780 | $208.77M |
| Added | PANW | Palo Alto Networks Inc | +67,162 | $204.56M |
| Trimmed | LNT | Alliant Energy Corp | -231,147 | $202.77M |
| Trimmed | TECH | Bio-Techne Corp | -49,584 | $190.80M |
| Added | META | Meta Platforms, Inc. | +8,246 | $187.50M |
| Trimmed | FAST | Fastenal Co | -51,551 | $185.92M |
| Added | SHW | Sherwin-Williams Co | +2,826 | $151.70M |
| Trimmed | CHRW | C. H. Robinson Worldwide, Inc. | -77,495 | $145.16M |
The 25 largest changes by value. The full quarter, filterable by action, loads below.
About these holdings
The 13F on record for Mairs & Power (Mairs & Power Inc), filed on Aug 14, 2026, reports 254 positions as of Jun 30, 2026. The largest is NVIDIA Corp (NVDA) at 8.6% of the reported portfolio, followed by Microsoft Corp (MSFT, 6.7%) and Amazon.com Inc (AMZN, 5.7%). The ten largest make up 44.3% of it. Against the previous quarter, it opened 17 new positions, added to 54, trimmed 110 and sold out of 8. The largest new position is Arthur J. Gallagher & Co. (AJG), at 0.7% of the portfolio. The largest position it added to is Microsoft Corp (MSFT), now 6.7%. The largest it sold out of, by its value the quarter before, is Honeywell International Inc (HON).
NVIDIA Corp (NVDA), the largest position, is also held by 17 other investors tracked here. Of those, Chase Coleman, John Armitage, Polen Capital Mgmt and Lee Ainslie hold the most of it as a share of their own portfolios. It is also the largest position of Lee Ainslie.
Other investors
George SorosFirst Eagle InvestmentDodge & CoxRay DalioPolen Capital MgmtKen GriffinLee AinslieBill Nygren