2026 Q2 Portfolio Activity
In 2026 Q2, MAIRS & POWER INC maintained a portfolio of 262 distinct positions. The most significant new addition was GALLAGHER ARTHUR J & CO, now representing 0.66% of the total fund value. They heavily accumulated shares in PALO ALTO NETWORKS INC, increasing the position by 12.6%. The fund also reduced its exposure to JOHNSON & JOHNSON by 26.8%.
Position History
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Total Positions
262
Quarter
2026 Q2
Top Holding
NVDA (8.6%)
Top 10 Concentration
44.3%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-50 of 262
MAIRS & POWER INC Full Holdings List — 2026 Q2
| 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 | 8.64% | 8.49% |
#1
Prev: #1
|
6.0 |
—
|
-53,559 | -1.1% |
P
S
|
4,707,792 | $941,982,058 |
$96.14
+134.2%
|
2019 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | ||
|
MSFT
MICROSOFT CORP
|
Technology | 6.68% | 7.35% |
#2
Prev: #2
|
4.7 |
—
|
8,346 | 0.4% |
P
S
|
1,950,737 | $727,663,988 | 1999 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
AMZN
AMAZON COM INC
|
Consumer Cyclical | 5.68% | 5.54% |
#3
Prev: #3
|
3.8 |
—
|
-3,471 | -0.1% |
P
S
|
2,599,441 | $619,550,768 | 2013 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
GOOG
ALPHABET INC
|
Communication Services | 5.46% | 4.72% |
#4
Prev: #4
|
3.2 |
—
|
71,829 | 4.5% |
P
S
|
1,683,439 | $594,809,371 | 2011 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
LLY
ELI LILLY & CO
|
Healthcare | 3.54% | 3.07% |
#5
3
Prev: #8
|
2.4 |
—
|
-4,177 | -1.3% |
P
S
|
322,129 | $386,371,186 | 2003 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
NVT
NVENT ELEC PLC
|
Industrials | 3.19% | 2.50% |
#6
6
Prev: #12
|
1.8 |
—
|
-13,607 | -0.7% |
P
S
|
2,052,813 | $348,177,553 | 2018 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
AAPL
APPLE INC
|
Technology | 3.02% | 3.13% |
#7
Prev: #7
|
1.7 |
—
|
-69,950 | -5.8% |
P
S
|
1,138,448 | $329,421,363 | 2009 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
JPM
JPMORGAN CHASE ...
|
Financial Services | 2.77% | 3.17% |
#8
2
Prev: #6
|
1.6 |
—
|
-130,647 | -12.4% |
P
S
|
923,550 | $302,305,621 | 1999 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
V
VISA INC
|
Financial Services | 2.68% | 2.60% |
#9
Prev: #9
|
1.6 |
—
|
11,133 | 1.3% |
P
S
|
852,050 | $292,329,895 | 2012 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
GGG
GRACO INC
|
Industrials | 2.63% | 3.30% |
#10
5
Prev: #5
|
1.6 |
—
|
-18,233 | -0.5% |
P
S
|
3,797,451 | $287,125,237 | 1999 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
LFUS
LITTELFUSE INC
|
Technology | 2.52% | 2.51% |
#11
Prev: #11
|
1.5 |
—
|
-122,606 | -16.9% |
P
S
|
602,104 | $274,156,014 | 2018 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
TTC
TORO CO
|
Industrials | 2.39% | 2.60% |
#12
2
Prev: #10
|
1.5 |
—
|
-42,509 | -1.6% |
P
S
|
2,676,474 | $260,742,088 | 1999 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
ENTG
ENTEGRIS INC
|
Technology | 2.15% | 1.61% |
#13
9
Prev: #22
|
1.4 |
—
|
-41,464 | -3.1% |
P
S
|
1,301,640 | $234,112,970 | 2021 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
UNH
UNITEDHEALTH GR...
|
Healthcare | 2.14% | 2.05% |
#14
3
Prev: #17
|
0.9 |
—
|
-181,132 | -24.4% |
P
S
|
559,951 | $232,732,484 | 1999 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
TSM
TAIWAN SEMICOND...
|
Technology | 2.09% | 1.68% |
#15
6
Prev: #21
|
1.3 |
—
|
-10,008 | -2.1% |
P
S
|
476,245 | $227,440,325 | 2011 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
MSI
MOTOROLA SOLUTI...
|
Technology | 2.08% | 2.40% |
#16
3
Prev: #13
|
1.3 |
—
|
4,144 | 0.8% |
P
S
|
544,876 | $226,281,554 | 2018 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
ECL
ECOLAB INC
|
Basic Materials | 1.99% | 2.07% |
#17
1
Prev: #16
|
1.3 |
—
|
15,723 | 2.1% |
P
S
|
777,541 | $216,630,797 | 1999 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
WEC
WEC ENERGY GROU...
|
Utilities | 1.92% | 2.26% |
#18
4
Prev: #14
|
1.3 |
—
|
-122,780 | -6.4% |
P
S
|
1,787,905 | $208,773,667 | 2015 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
PANW
PALO ALTO NETWO...
|
Technology | 1.88% | 0.87% |
#19
14
Prev: #33
|
2.8 |
—
|
67,162 | 12.6% |
P
S
|
599,841 | $204,557,778 | 2023 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
LNT
ALLIANT ENERGY ...
|
Utilities | 1.86% | 2.12% |
#20
5
Prev: #15
|
1.2 |
—
|
-231,147 | -8.0% |
P
S
|
2,657,913 | $202,772,183 | 2012 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
TECH
BIO-TECHNE CORP
|
Healthcare | 1.75% | 1.47% |
#21
3
Prev: #24
|
1.2 |
—
|
-49,584 | -1.8% |
P
S
|
2,700,698 | $190,804,299 | 2003 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
META
META PLATFORMS ...
|
Communication Services | 1.72% | 1.90% |
#22
4
Prev: #18
|
1.2 |
—
|
8,246 | 2.5% |
P
S
|
332,871 | $187,502,906 | 2015 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
FAST
FASTENAL CO
|
Industrials | 1.71% | 1.86% |
#23
4
Prev: #19
|
1.2 |
—
|
-51,551 | -1.3% |
P
S
|
3,870,891 | $185,918,876 | 2003 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
SHW
SHERWIN WILLIAM...
|
Basic Materials | 1.39% | 1.43% |
#24
3
Prev: #27
|
1.1 |
—
|
2,826 | 0.6% |
P
S
|
440,586 | $151,702,686 | 2019 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
CHRW
C H ROBINSON WO...
|
Industrials | 1.33% | 1.44% |
#25
1
Prev: #26
|
1.0 |
—
|
-77,495 | -9.1% |
P
S
|
770,708 | $145,155,131 | 2008 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
FUL
FULLER H B CO
|
Basic Materials | 1.30% | 1.49% |
#26
3
Prev: #23
|
1.0 |
—
|
73,551 | 3.1% |
P
S
|
2,435,168 | $141,945,943 | 1999 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
VZ
VERIZON COMMUNI...
|
Communication Services | 1.28% | 1.70% |
#27
7
Prev: #20
|
1.0 |
—
|
-23,586 | -0.7% |
P
S
|
3,291,850 | $139,376,929 | 2007 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
WM
WASTE MGMT INC ...
|
Industrials | 1.21% | 0.94% |
#28
3
Prev: #31
|
3.0 |
—
|
192,785 | 48.4% |
P
S
|
591,025 | $131,727,652 | 2000 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
ROK
ROCKWELL AUTOMA...
|
Industrials | 1.17% | 1.04% |
#29
1
Prev: #30
|
1.0 |
—
|
-25,742 | -9.1% |
P
S
|
257,811 | $127,637,070 | 2016 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
FISV
FISERV INC
|
Unknown | 1.03% | 1.23% |
#30
2
Prev: #28
|
2.4 |
—
|
140,176 | 6.5% |
P
S
|
2,293,029 | $112,473,072 | 2005 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
JNJ
JOHNSON & JOHNS...
|
Healthcare | 0.99% | 1.44% |
#31
6
Prev: #25
|
0.4 |
—
|
-154,580 | -26.8% |
P
S
|
423,010 | $107,431,831 | 1999 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
AMP
AMERIPRISE FINL...
|
Financial Services | 0.90% | 0.89% |
#32
Prev: #32
|
2.4 |
—
|
17,009 | 8.6% |
P
S
|
214,056 | $98,200,331 | 1999 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
CGNX
COGNEX CORP
|
Technology | 0.87% | 0.61% |
#33
5
Prev: #38
|
2.3 |
—
|
83,981 | 6.9% |
P
S
|
1,307,856 | $94,714,932 | 2025 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
HRL
HORMEL FOODS CO...
|
Consumer Defensive | 0.77% | 0.79% |
#34
Prev: #34
|
0.8 |
—
|
-19,912 | -0.6% |
P
S
|
3,398,047 | $84,339,527 | 1999 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
CASY
CASEYS GEN STOR...
|
Consumer Cyclical | 0.66% | 0.71% |
#35
1
Prev: #36
|
0.8 |
—
|
-4,812 | -5.0% |
P
S
|
91,125 | $72,425,239 | 2012 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
WFC
WELLS FARGO & C...
|
Financial Services | 0.66% | 1.11% |
#36
7
Prev: #29
|
0.3 |
—
|
-493,690 | -36.1% |
P
S
|
872,186 | $72,077,458 | 2001 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
AJG
GALLAGHER ARTHU...
|
Financial Services | 0.66% | — |
#37
Prev: #—
|
3.8 |
—
|
311,539 | — |
NEW
|
311,539 | $71,520,008 | 2024 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
ABT
ABBOTT LABORATO...
|
Healthcare | 0.61% | 0.76% |
#38
3
Prev: #35
|
0.7 |
—
|
7,580 | 1.1% |
P
S
|
729,358 | $66,182,014 | 1999 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
TXN
TEXAS INSTRS IN...
|
Technology | 0.59% | 0.46% |
#39
6
Prev: #45
|
0.7 |
—
|
-13,698 | -5.9% |
P
S
|
217,453 | $64,816,216 | 2002 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
TNC
TENNANT CO
|
Industrials | 0.55% | 0.55% |
#40
1
Prev: #39
|
0.7 |
—
|
-121,664 | -15.1% |
P
S
|
681,800 | $59,684,772 | 2007 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
ISRG
INTUITIVE SURGI...
|
Healthcare | 0.53% | 0.47% |
#41
2
Prev: #43
|
2.7 |
—
|
46,574 | 46.6% |
P
S
|
146,459 | $58,243,815 | 2025 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
MMM
3M CO
|
Industrials | 0.52% | 0.52% |
#42
2
Prev: #40
|
0.7 |
—
|
-2,498 | -0.7% |
P
S
|
349,350 | $56,563,197 | 1999 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
HD
HOME DEPOT INC
|
Consumer Cyclical | 0.49% | 0.52% |
#43
2
Prev: #41
|
0.7 |
—
|
-946 | -0.6% |
P
S
|
152,452 | $53,766,917 | 1999 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
TRV
TRAVELERS COMPA...
|
Financial Services | 0.47% | 0.42% |
#44
6
Prev: #50
|
2.2 |
—
|
14,068 | 9.9% |
P
S
|
156,482 | $51,657,838 | 2007 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
AXP
AMERICAN EXPRES...
|
Financial Services | 0.45% | 0.46% |
#45
1
Prev: #44
|
0.7 |
—
|
-3,209 | -2.2% |
P
S
|
145,612 | $49,253,116 | 1999 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
IDA
IDACORP INC
|
Utilities | 0.43% | 0.44% |
#46
Prev: #46
|
0.7 |
—
|
8,593 | 2.9% |
P
S
|
309,970 | $46,898,461 | 2025 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
MEDP
MEDPACE HLDGS I...
|
Healthcare | 0.42% | 0.42% |
#47
4
Prev: #51
|
0.7 |
—
|
995 | 1.2% |
P
S
|
86,715 | $45,923,397 | 2022 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
CME
CME GROUP INC
|
Financial Services | 0.40% | — |
#48
Prev: #—
|
3.7 |
—
|
195,585 | — |
NEW
|
195,585 | $43,191,036 | 2026 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
DCI
DONALDSON INC
|
Industrials | 0.38% | 0.43% |
#49
1
Prev: #48
|
0.7 |
—
|
-35,657 | -7.1% |
P
S
|
463,717 | $41,627,862 | 1999 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
WK
WORKIVA INC
|
Technology | 0.37% | 0.44% |
#50
3
Prev: #47
|
2.1 |
—
|
113,851 | 15.9% |
P
S
|
829,491 | $40,238,608 | 2015 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 |
Showing 1-50 of 262 holdings