MAIRS & POWER INC
Long book
$9.79B
Q1 2026
Positions
245
Top-10 weight
44%
concentration
Last quarter
+14.0%
SPY +14.8%
Turnover
16%
of book per quarter
Strategy in plain words
auto-generated from filingsMAIRS & POWER INC is an institutional manager, running a $9.79B US long book across 245 positions.
The portfolio is moderately concentrated (top 10 ≈ 44% of the book). Turnover is modest: positions are typically held for years. Current anchor positions: NVIDIA CORP, MICROSOFT CORP, AMAZON.COM INC, ALPHABET INC-CL C, GRACO INC.
Over the last 9 quarters its long book ran on average 1.3pp per quarter behind the S&P 500, beating the index in 1 of 9 quarters. Signal value of individual moves is limited — treat changes as weak evidence.
Implied long-book return vs S&P 500
methodology: positions priced quarterly, no shorts/options Fund long book S&P 500
Q1 2024
+2.5%
Q2 2024
+4.4%
Q3 2024
+0.7%
Q4 2024
-4.6%
Q1 2025
+6.5%
Q2 2025
+7.8%
Q3 2025
+0.7%
Q4 2025
-3.3%
Q1 2026
+14.0%
Sector allocation
Technology 33%
Industrials 15%
Consumer discretionary 11%
Financials 10%
Healthcare 10%
Other 7%
Utilities 6%
Services media 4%
Long book by quarter
What does MAIRS & own?
Q1 2026 13F| Company | Sector | Shares | Value | % of book | Change |
|---|---|---|---|---|---|
| NVDA NVIDIA CORP | Technology | 4.8M | $830.4M | 8.5% | -3.8% |
| MSFT MICROSOFT CORP | Technology | 1.9M | $719.0M | 7.3% | +1.5% |
| AMZN AMAZON.COM INC | Consumer discretionary | 2.6M | $542.1M | 5.5% | +0.4% |
| GOOG ALPHABET INC-CL C | Technology | 1.6M | $462.3M | 4.7% | -5.1% |
| GGG GRACO INC | Industrials | 3.8M | $323.0M | 3.3% | -2.3% |
| JPM JPMORGAN CHASE & CO | Financials | 1.1M | $310.1M | 3.2% | -17.4% |
| AAPL APPLE INC | Technology | 1.2M | $306.7M | 3.1% | -0.7% |
| LLY ELI LILLY & CO | Healthcare | 326.3K | $300.1M | 3.1% | -5.5% |
| V VISA INC-CLASS A SHARES | Services media | 840.9K | $254.2M | 2.6% | +4.8% |
| TTC TORO CO | Industrials | 2.7M | $254.1M | 2.6% | -20.6% |
| LFUS LITTELFUSE INC | Industrials | 724.7K | $245.9M | 2.5% | -7.0% |
| NVT NVENT ELECTRIC PLC | Industrials | 2.1M | $244.4M | 2.5% | -2.1% |
| MSI MOTOROLA SOLUTIONS INC | Technology | 540.7K | $234.7M | 2.4% | +3.0% |
| WEC WEC ENERGY GROUP INC | Utilities | 1.9M | $221.2M | 2.3% | +0.1% |
| LNT ALLIANT ENERGY CORP | Utilities | 2.9M | $207.3M | 2.1% | -2.3% |
| ECL ECOLAB INC | Other | 761.8K | $202.7M | 2.1% | -1.1% |
| UNH UNITEDHEALTH GROUP INC | Financials | 741.1K | $200.5M | 2.0% | -10.8% |
| META META PLATFORMS INC-CLASS A | Technology | 324.6K | $185.7M | 1.9% | +2.6% |
| FAST FASTENAL CO | Consumer discretionary | 3.9M | $182.0M | 1.9% | -16.0% |
| VZ VERIZON COMMUNICATIONS INC | Communications | 3.3M | $166.4M | 1.7% | -1.7% |
| ENTG ENTEGRIS INC | Other | 1.3M | $157.5M | 1.6% | -0.4% |
| FUL H.B. FULLER CO. | Other | 2.4M | $145.7M | 1.5% | -2.1% |
| TECH BIO-TECHNE CORP | Healthcare | 2.8M | $143.7M | 1.5% | -0.6% |
| JNJ JOHNSON & JOHNSON | Healthcare | 577.6K | $141.2M | 1.4% | -28.2% |
| CHRW C.H. ROBINSON WORLDWIDE INC | Industrials | 848.2K | $140.9M | 1.4% | -1.7% |
| SHW SHERWIN-WILLIAMS CO/THE | Consumer discretionary | 437.8K | $140.3M | 1.4% | -6.8% |
| FISV FISERV INC | Services media | 2.2M | $120.1M | 1.2% | +31.0% |
| WFC WELLS FARGO & CO | Financials | 1.4M | $108.7M | 1.1% | -21.0% |
| ROK ROCKWELL AUTOMATION INC | Other | 283.6K | $101.8M | 1.0% | -14.2% |
| WM WASTE MANAGEMENT INC | Utilities | 398.2K | $91.5M | 0.9% | +39724.0% |
| AMP AMERIPRISE FINANCIAL INC | Financials | 197.0K | $87.6M | 0.9% | +362.4% |
| PANW PALO ALTO NETWORKS INC | Technology | 532.7K | $85.4M | 0.9% | +141.4% |
| HRL HORMEL FOODS CORP | Consumer staples | 3.4M | $77.4M | 0.8% | -9.8% |
| ABT ABBOTT LABORATORIES | Healthcare | 721.8K | $74.1M | 0.8% | +1.9% |
| CASY CASEY'S GENERAL STORES INC | Consumer discretionary | 95.9K | $69.8M | 0.7% | -7.6% |
| QCOM QUALCOMM INC | Technology | 478.1K | $61.6M | 0.6% | -13.1% |
| CGNX COGNEX CORP | Technology | 1.2M | $60.0M | 0.6% | +4.5% |
| TNC TENNANT CO | Industrials | 803.5K | $53.4M | 0.5% | -25.0% |
| MMM 3M CO | Healthcare | 351.8K | $51.1M | 0.5% | +0.8% |
| HD HOME DEPOT INC | Consumer discretionary | 153.4K | $50.5M | 0.5% | -2.3% |
| HON HONEYWELL INTERNATIONAL INC | Industrials | 208.4K | $47.1M | 0.5% | -10.9% |
| ISRG INTUITIVE SURGICAL INC | Healthcare | 99.9K | $46.0M | 0.5% | +60.4% |
| AXP AMERICAN EXPRESS CO | Financials | 148.8K | $45.0M | 0.5% | -6.7% |
| TXN TEXAS INSTRUMENTS INC | Technology | 231.2K | $44.9M | 0.5% | -1.8% |
| IDA IDACORP INC | Utilities | 301.4K | $43.1M | 0.4% | -0.4% |
| WK WORKIVA INC | Technology | 715.6K | $42.7M | 0.4% | -1.7% |
| DCI DONALDSON CO INC | Industrials | 499.4K | $42.4M | 0.4% | -10.9% |
| PIPR PIPER SANDLER COS | Financials | 546.1K | $41.8M | 0.4% | New |
| TRV TRAVELERS COS INC/THE | Financials | 142.4K | $41.5M | 0.4% | +25.1% |
| MEDP MEDPACE HOLDINGS INC | Healthcare | 85.7K | $41.2M | 0.4% | +28.6% |
13F filing history
| Period | Form | Filed | Entries | Reported value | Flags | Source |
|---|---|---|---|---|---|---|
| Q1 2026 | 13F-HR | May 14, 2026 | 245 | $9.79B | canonical | SEC ↗ |
| Q4 2025 | 13F-HR | Feb 17, 2026 | 243 | $10.39B | canonical | SEC ↗ |
| Q3 2025 | 13F-HR | Nov 14, 2025 | 248 | $10.64B | canonical | SEC ↗ |
| Q2 2025 | 13F-HR | Aug 14, 2025 | 235 | $10.13B | canonical | SEC ↗ |
| Q1 2025 | 13F-HR | May 15, 2025 | 221 | $9.61B | canonical | SEC ↗ |
| Q4 2024 | 13F-HR | Feb 14, 2025 | 229 | $10.34B | canonical | SEC ↗ |
| Q3 2024 | 13F-HR | Nov 14, 2024 | 228 | $10.63B | canonical | SEC ↗ |
| Q2 2024 | 13F-HR | Aug 14, 2024 | 222 | $10.35B | canonical | SEC ↗ |
| Q1 2024 | 13F-HR | May 15, 2024 | 226 | $10.33B | canonical | SEC ↗ |
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