MAIRS & POWER INC — 13F Holdings & Portfolio
CIK 1070134 · latest 13F-HR filed 2026-08-14
MAIRS & POWER INC manages $10.90B in 13F-reported U.S. long-equity assets across 254 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are NVDA (8.64%), MSFT (6.68%), AMZN (5.68%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 17 new positions, exited 8, added to 132, and trimmed 65.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
$10.90B
Long-equity book
254
Distinct positions
2026-06-30
Filed 2026-08-14
+17 / −8 / ↑132 / ↓65
vs 2026-03-31
Portfolio charts
Latest quarter's book, what changed, and how the portfolio has evolved across filings.
| Name | Title / Status | Ownership | Type |
|---|
Quarter-over-quarter changes
Share-count changes vs the prior 13F.
Top Adds (vs prior quarter)
- ALPHABET INC$132.5M +28.7%
- PALO ALTO NETWORKS INC$119.2M +139.5%
- NVIDIA CORPORATION$111.6M +13.4%
- NVENT ELEC PLC$103.8M +42.5%
- ELI LILLY & CO$86.2M +28.7%
Top Trims
- WELLS FARGO & CO-$36.7M -33.7%
- GRACO INC-$35.9M -11.1%
- JOHNSON & JOHNSON-$33.8M -23.9%
- QUALCOMM INC-$28.3M -46.0%
- VERIZON COMMUNICATIONS INC-$27.1M -16.3%
New Positions
- GALLAGHER ARTHUR J & CO$71.5M
- CME GROUP INC$43.2M
- HONEYWELL AEROSPACE INC$22.1M
- MGE ENERGY INC$1.3M
- ISHARES TR$1.0M
Exited Positions
- HONEYWELL INTL INC$47.1M
- UIPATH INC$340.8K
- ISHARES TR$326.7K
- ULTA BEAUTY INC$316.2K
- SEI INVTS CO$259.0K
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | NVIDIA CORPORATION | NVDA | 67066G104 | $942.0M | 8.64% | 4,707,792 | SH |
| 2 | MICROSOFT CORP | MSFT | 594918104 | $727.7M | 6.68% | 1,950,737 | SH |
| 3 | AMAZON COM INC | AMZN | 023135106 | $619.6M | 5.68% | 2,599,441 | SH |
| 4 | ALPHABET INC | GOOG | 02079K107 | $594.8M | 5.46% | 1,683,439 | SH |
| 5 | ELI LILLY & CO | LLY | 532457108 | $386.4M | 3.54% | 322,129 | SH |
| 6 | NVENT ELEC PLC | NVT | G6700G107 | $348.2M | 3.19% | 2,052,813 | SH |
| 7 | APPLE INC | AAPL | 037833100 | $329.4M | 3.02% | 1,138,448 | SH |
| 8 | JPMORGAN CHASE & CO | JPM | 46625H100 | $302.3M | 2.77% | 923,550 | SH |
| 9 | VISA INC | V | 92826C839 | $292.3M | 2.68% | 852,050 | SH |
| 10 | GRACO INC | GGG | 384109104 | $287.1M | 2.63% | 3,797,451 | SH |
| 11 | LITTELFUSE INC | LFUS | 537008104 | $274.2M | 2.52% | 602,104 | SH |
| 12 | TORO CO | TTC | 891092108 | $260.7M | 2.39% | 2,676,474 | SH |
| 13 | ENTEGRIS INC | ENTG | 29362U104 | $234.1M | 2.15% | 1,301,640 | SH |
| 14 | UNITEDHEALTH GROUP INC | UNH | 91324P102 | $232.7M | 2.14% | 559,951 | SH |
| 15 | TAIWAN SEMICONDUCTOR MANUFAC | TSM | 874039100 | $227.4M | 2.09% | 476,245 | SH |
| 16 | MOTOROLA SOLUTIONS INC | MSI | 620076307 | $226.3M | 2.08% | 544,876 | SH |
| 17 | ECOLAB INC | ECL | 278865100 | $216.6M | 1.99% | 777,541 | SH |
| 18 | WEC ENERGY GROUP INC | WEC | 92939U106 | $208.8M | 1.92% | 1,787,905 | SH |
| 19 | PALO ALTO NETWORKS INC | PANW | 697435105 | $204.6M | 1.88% | 599,841 | SH |
| 20 | ALLIANT ENERGY CORP | LNT | 018802108 | $202.8M | 1.86% | 2,657,913 | SH |
| 21 | BIO-TECHNE CORP | TECH | 09073M104 | $190.8M | 1.75% | 2,700,698 | SH |
| 22 | META PLATFORMS INC | META | 30303M102 | $187.5M | 1.72% | 332,871 | SH |
| 23 | FASTENAL CO | FAST | 311900104 | $185.9M | 1.71% | 3,870,891 | SH |
| 24 | SHERWIN WILLIAMS CO | SHW | 824348106 | $151.7M | 1.39% | 440,586 | SH |
| 25 | C H ROBINSON WORLDWIDE IN | CHRW | 12541W209 | $145.2M | 1.33% | 770,708 | SH |
| 26 | FULLER H B CO | FUL | 359694106 | $141.9M | 1.30% | 2,435,168 | SH |
| 27 | VERIZON COMMUNICATIONS INC | VZ | 92343V104 | $139.4M | 1.28% | 3,291,850 | SH |
| 28 | WASTE MGMT INC DEL | WM | 94106L109 | $131.7M | 1.21% | 591,025 | SH |
| 29 | ROCKWELL AUTOMATION INC | ROK | 773903109 | $127.6M | 1.17% | 257,811 | SH |
| 30 | FISERV INC | FISV | 337738108 | $112.5M | 1.03% | 2,293,029 | SH |
| 31 | JOHNSON & JOHNSON | JNJ | 478160104 | $107.4M | 0.99% | 423,010 | SH |
| 32 | AMERIPRISE FINL INC | AMP | 03076C106 | $98.2M | 0.90% | 214,056 | SH |
| 33 | COGNEX CORP | CGNX | 192422103 | $94.7M | 0.87% | 1,307,856 | SH |
| 34 | HORMEL FOODS CORP | HRL | 440452100 | $84.3M | 0.77% | 3,398,047 | SH |
| 35 | CASEYS GEN STORES INC | CASY | 147528103 | $72.4M | 0.66% | 91,125 | SH |
| 36 | WELLS FARGO & CO | WFC | 949746101 | $72.1M | 0.66% | 872,186 | SH |
| 37 | GALLAGHER ARTHUR J & CO | AJG | 363576109 | $71.5M | 0.66% | 311,539 | SH |
| 38 | ABBOTT LABORATORIES | ABT | 002824100 | $66.2M | 0.61% | 729,358 | SH |
| 39 | TEXAS INSTRS INC | TXN | 882508104 | $64.8M | 0.59% | 217,453 | SH |
| 40 | TENNANT CO | TNC | 880345103 | $59.7M | 0.55% | 681,800 | SH |
| 41 | INTUITIVE SURGICAL INC | ISRG | 46120E602 | $58.2M | 0.53% | 146,459 | SH |
| 42 | 3M CO | MMM | 88579Y101 | $56.6M | 0.52% | 349,350 | SH |
| 43 | HOME DEPOT INC | HD | 437076102 | $53.8M | 0.49% | 152,452 | SH |
| 44 | TRAVELERS COMPANIES INC | TRV | 89417E109 | $51.7M | 0.47% | 156,482 | SH |
| 45 | AMERICAN EXPRESS CO | AXP | 025816109 | $49.3M | 0.45% | 145,612 | SH |
| 46 | IDACORP INC | IDA | 451107106 | $46.9M | 0.43% | 309,970 | SH |
| 47 | MEDPACE HLDGS INC | MEDP | 58506Q109 | $45.9M | 0.42% | 86,715 | SH |
| 48 | CME GROUP INC | CME | 12572Q105 | $43.2M | 0.40% | 195,585 | SH |
| 49 | DONALDSON INC | DCI | 257651109 | $41.6M | 0.38% | 463,717 | SH |
| 50 | WORKIVA INC | WK | 98139A105 | $40.2M | 0.37% | 829,491 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | $10.90B | 254 | 0001172661-26-003496 |
| 2026-03-31 | 2026-05-14 | $9.79B | 245 | 0001172661-26-001819 |
| 2025-12-31 | 2026-02-17 | $10.39B | 243 | 0001172661-26-001057 |
| 2025-09-30 | 2025-11-14 | $10.64B | 248 | 0001172661-25-004985 |
ST PAUL, MN 55101