MAIRS & POWER INC

All Holdings — 2026 Q1

AI Portfolio Summary
In 2026 Q1, MAIRS & POWER INC maintained a portfolio of 265 distinct positions. The most significant new addition to the portfolio was PIPER SANDLER COMPAN, which now represents 0.43% of the total fund value. They heavily accumulated shares in MICROSOFT CORP, increasing their position by 1.5%. The fund also reduced its exposure to JOHNSON & JOHNSON by 28.2%.
PCA Score Concentration Risk
Risk ENB
Total Positions
265
Quarter
2026 Q1
Top Holding
NVDA (8.5%)
Top 10 Concentration
44.0%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-50 of 265
Stock History Sector / Type Port % Prev % Rank / Prev Conviction Change % Change Influence Shares Mkt Value Avg Cost Price Held 1st Owned Source Source Date Date Reported
NVDA
NVIDIA CORPORAT...
Technology 8.49% 8.88% #1 1
Prev: #2
5.9 -188,297 -3.8%
P
S
4,761,351 $830,379,664 2019 Q2 13F Filing 2026-03-31 2026-05-14
MSFT
MICROSOFT CORP
Technology 7.35% 8.90% #2 1
Prev: #1
4.9 29,495 1.5%
P
S
1,942,391 $719,014,922 1999 Q3 13F Filing 2026-03-31 2026-05-14
AMZN
AMAZON COM INC
Consumer Cyclical 5.54% 5.76% #3
Prev: #3
3.7 10,144 0.4%
P
S
2,602,912 $542,108,482 2013 Q4 13F Filing 2026-03-31 2026-05-14
GOOG
ALPHABET INC
Communication Services 4.72% 5.13% #4
Prev: #4
2.9 -86,359 -5.1%
P
S
1,611,610 $462,306,563 2011 Q2 13F Filing 2026-03-31 2026-05-14
GGG
GRACO INC
Industrials 3.30% 3.08% #5 3
Prev: #8
2.3 -89,898 -2.3%
P
S
3,815,684 $322,997,719 1999 Q1 13F Filing 2026-03-31 2026-05-14
JPM
JPMORGAN CHASE ...
Financial Services 3.17% 3.96% #6 1
Prev: #5
1.8 -222,207 -17.4%
P
S
1,054,197 $310,102,590 1999 Q1 13F Filing 2026-03-31 2026-05-14
AAPL
APPLE INC
Technology 3.13% 3.19% #7
Prev: #7
1.8 -9,088 -0.7%
P
S
1,208,398 $306,679,348 2009 Q3 13F Filing 2026-03-31 2026-05-14
LLY
ELI LILLY & CO
Healthcare 3.07% 3.57% #8 2
Prev: #6
1.7 -19,039 -5.5%
P
S
326,306 $300,126,470 2003 Q2 13F Filing 2026-03-31 2026-05-14
V
VISA INC
Financial Services 2.60% 2.71% #9
Prev: #9
1.5 38,399 4.8%
P
S
840,917 $254,159,034 2012 Q4 13F Filing 2026-03-31 2026-05-14
TTC
TORO CO
Industrials 2.60% 2.59% #10 1
Prev: #11
1.0 -703,840 -20.6%
P
S
2,718,983 $254,061,812 1999 Q1 13F Filing 2026-03-31 2026-05-14
LFUS
LITTELFUSE INC
Technology 2.51% 1.90% #11 6
Prev: #17
1.5 -54,241 -7.0%
P
S
724,710 $245,930,339 2018 Q1 13F Filing 2026-03-31 2026-05-14
NVT
NVENT ELEC PLC
Industrials 2.50% 2.07% #12
Prev: #12
1.5 -44,791 -2.1%
P
S
2,066,420 $244,416,234 2018 Q2 13F Filing 2026-03-31 2026-05-14
MSI
MOTOROLA SOLUTI...
Technology 2.40% 1.94% #13 2
Prev: #15
1.5 15,518 3.0%
P
S
540,732 $234,661,466 2018 Q3 13F Filing 2026-03-31 2026-05-14
WEC
WEC ENERGY GROU...
Utilities 2.26% 1.94% #14 2
Prev: #16
1.4 1,911 0.1%
P
S
1,910,685 $221,200,002 2015 Q2 13F Filing 2026-03-31 2026-05-14
LNT
ALLIANT ENERGY ...
Utilities 2.12% 1.85% #15 3
Prev: #18
1.3 -67,887 -2.3%
P
S
2,889,060 $207,318,946 2012 Q1 13F Filing 2026-03-31 2026-05-14
ECL
ECOLAB INC
Basic Materials 2.07% 1.95% #16 2
Prev: #14
1.3 -8,753 -1.1%
P
S
761,818 $202,658,747 1999 Q1 13F Filing 2026-03-31 2026-05-14
UNH
UNITEDHEALTH GR...
Healthcare 2.05% 2.64% #17 7
Prev: #10
1.3 -89,452 -10.8%
P
S
741,083 $200,529,681 1999 Q1 13F Filing 2026-03-31 2026-05-14
META
META PLATFORMS ...
Communication Services 1.90% 2.01% #18 5
Prev: #13
1.3 8,096 2.6%
P
S
324,625 $185,727,701 2015 Q4 13F Filing 2026-03-31 2026-05-14
FAST
FASTENAL CO
Industrials 1.86% 1.80% #19
Prev: #19
1.2 -745,057 -16.0%
P
S
3,922,442 $182,001,337 2003 Q4 13F Filing 2026-03-31 2026-05-14
VZ
VERIZON COMMUNI...
Communication Services 1.70% 1.32% #20 7
Prev: #27
1.2 -58,236 -1.7%
P
S
3,315,436 $166,434,887 2007 Q4 13F Filing 2026-03-31 2026-05-14
TSM
TAIWAN SEMICOND...
Technology 1.68% 1.42% #21 3
Prev: #24
1.2 -294 -0.1%
P
S
486,253 $164,329,539 2011 Q2 13F Filing 2026-03-31 2026-05-14
ENTG
ENTEGRIS INC
Technology 1.61% 1.09% #22 7
Prev: #29
1.1 -5,882 -0.4%
P
S
1,343,104 $157,465,513 2021 Q4 13F Filing 2026-03-31 2026-05-14
FUL
FULLER H B CO
Basic Materials 1.49% 1.38% #23 2
Prev: #25
1.1 -49,450 -2.1%
P
S
2,361,617 $145,664,537 1999 Q1 13F Filing 2026-03-31 2026-05-14
TECH
BIO-TECHNE CORP
Healthcare 1.47% 1.57% #24 3
Prev: #21
1.1 -17,257 -0.6%
P
S
2,750,282 $143,729,727 2003 Q2 13F Filing 2026-03-31 2026-05-14
JNJ
JOHNSON & JOHNS...
Healthcare 1.44% 1.60% #25 5
Prev: #20
0.6 -226,756 -28.2%
P
S
577,590 $141,186,327 1999 Q1 13F Filing 2026-03-31 2026-05-14
CHRW
C H ROBINSON WO...
Industrials 1.44% 1.33% #26
Prev: #26
1.1 -14,280 -1.7%
P
S
848,203 $140,861,226 2008 Q3 13F Filing 2026-03-31 2026-05-14
SHW
SHERWIN WILLIAM...
Basic Materials 1.43% 1.46% #27 4
Prev: #23
1.1 -31,832 -6.8%
P
S
437,760 $140,324,023 2019 Q1 13F Filing 2026-03-31 2026-05-14
FISV
FISERV INC
Unknown 1.23% 1.06% #28 2
Prev: #30
3.0 509,603 31.0%
P
S
2,152,853 $120,129,197 2005 Q1 13F Filing 2026-03-31 2026-05-14
WFC
WELLS FARGO & C...
Financial Services 1.11% 1.55% #29 7
Prev: #22
0.4 -363,465 -21.0%
P
S
1,365,876 $108,737,395 2001 Q2 13F Filing 2026-03-31 2026-05-14
ROK
ROCKWELL AUTOMA...
Industrials 1.04% 1.24% #30 2
Prev: #28
0.9 -46,781 -14.2%
P
S
283,553 $101,761,501 2016 Q3 13F Filing 2026-03-31 2026-05-14
WM
WASTE MGMT INC ...
Industrials 0.94% 0.00% #31 200
Prev: #231
3.4 397,240 39724.0%
P
S
398,240 $91,511,570 2000 Q2 13F Filing 2026-03-31 2026-05-14
AMP
AMERIPRISE FINL...
Financial Services 0.89% 0.20% #32 29
Prev: #61
3.4 154,436 362.4%
P
S
197,047 $87,567,687 1999 Q1 13F Filing 2026-03-31 2026-05-14
PANW
PALO ALTO NETWO...
Technology 0.87% 0.39% #33 13
Prev: #46
3.3 312,032 141.4%
P
S
532,679 $85,399,097 2023 Q1 13F Filing 2026-03-31 2026-05-14
HRL
HORMEL FOODS CO...
Consumer Defensive 0.79% 0.86% #34 2
Prev: #32
0.8 -371,554 -9.8%
P
S
3,417,959 $77,416,771 1999 Q1 13F Filing 2026-03-31 2026-05-14
ABT
ABBOTT LABORATO...
Healthcare 0.76% 0.85% #35 2
Prev: #33
0.8 13,697 1.9%
P
S
721,778 $74,105,025 1999 Q1 13F Filing 2026-03-31 2026-05-14
CASY
CASEYS GEN STOR...
Consumer Cyclical 0.71% 0.55% #36 3
Prev: #39
0.8 -7,936 -7.6%
P
S
95,937 $69,828,705 2012 Q2 13F Filing 2026-03-31 2026-05-14
QCOM
QUALCOMM INC
Technology 0.63% 0.91% #37 6
Prev: #31
0.8 -72,253 -13.1%
P
S
478,055 $61,564,052 2004 Q1 13F Filing 2026-03-31 2026-05-14
CGNX
COGNEX CORP
Technology 0.61% 0.41% #38 6
Prev: #44
0.7 52,279 4.5%
P
S
1,223,875 $59,957,636 2025 Q1 13F Filing 2026-03-31 2026-05-14
TNC
TENNANT CO
Industrials 0.55% 0.76% #39 5
Prev: #34
0.2 -268,160 -25.0%
P
S
803,464 $53,350,010 2007 Q2 13F Filing 2026-03-31 2026-05-14
MMM
3M CO
Industrials 0.52% 0.54% #40
Prev: #40
0.7 2,701 0.8%
P
S
351,848 $51,098,829 1999 Q1 13F Filing 2026-03-31 2026-05-14
HD
HOME DEPOT INC
Consumer Cyclical 0.52% 0.52% #41
Prev: #41
0.7 -3,655 -2.3%
P
S
153,398 $50,451,122 1999 Q2 13F Filing 2026-03-31 2026-05-14
HON
HONEYWELL INTL ...
Industrials 0.48% 0.44% #42 1
Prev: #43
0.7 -25,528 -10.9%
P
S
208,448 $47,115,501 1999 Q1 13F Filing 2026-03-31 2026-05-14
ISRG
INTUITIVE SURGI...
Healthcare 0.47% 0.34% #43 8
Prev: #51
3.2 37,608 60.4%
P
S
99,885 $46,045,986 2025 Q4 13F Filing 2026-03-31 2026-05-14
AXP
AMERICAN EXPRES...
Financial Services 0.46% 0.57% #44 6
Prev: #38
0.7 -10,638 -6.7%
P
S
148,821 $45,015,527 1999 Q1 13F Filing 2026-03-31 2026-05-14
TXN
TEXAS INSTRS IN...
Technology 0.46% 0.39% #45
Prev: #45
0.7 -4,273 -1.8%
P
S
231,151 $44,875,655 2002 Q2 13F Filing 2026-03-31 2026-05-14
IDA
IDACORP INC
Utilities 0.44% 0.37% #46 3
Prev: #49
0.7 -1,131 -0.4%
P
S
301,377 $43,087,870 2025 Q2 13F Filing 2026-03-31 2026-05-14
WK
WORKIVA INC
Technology 0.44% 0.60% #47 11
Prev: #36
0.7 -12,354 -1.7%
P
S
715,640 $42,673,613 2015 Q4 13F Filing 2026-03-31 2026-05-14
DCI
DONALDSON INC
Industrials 0.43% 0.48% #48 6
Prev: #42
0.7 -61,279 -10.9%
P
S
499,374 $42,381,944 1999 Q1 13F Filing 2026-03-31 2026-05-14
N/A
PIPER SANDLER C...
Unknown 0.43% #49
Prev: #—
3.7 546,090 no change
NEW
546,090 $41,803,190 13F Filing 2026-03-31 2026-05-14
TRV
TRAVELERS COMPA...
Financial Services 0.42% 0.32% #50 4
Prev: #54
2.7 28,614 25.1%
P
S
142,414 $41,539,316 2007 Q1 13F Filing 2026-03-31 2026-05-14
Showing 1-50 of 265 holdings

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