Mairs & Power Inc

13F filer · CIK 0001070134

Reported Aug 14, 2026

Net seller this quarter

13F portfolio value$10.9BU.S. long equity reported on 13F

Positions22011 new · 8 closed

Net flow last quarter-$222MBuys minus sells

Top 10 positions weight44.3%Concentration

Holdings

13F · last 4 quarters free

Scroll for earlier quarters

Company	Value	% of portfolio	% of company	POSITION CHANGE qoq %	First reported
Q2 2026Reported Aug 14, 2026220 positions
NVDANvidia Corp	$942M	8.64%	0.02%	-1.1%	Q2 2019
MSFTMicrosoft Corp	$728M	6.68%	0.03%	+0.4%	Q2 2013
AMZNAmazon Com Inc	$620M	5.68%	0.02%	-0.1%	Q4 2013
GOOGAlphabet Inc.	$595M	5.46%	Not reported	+4.5%	Q3 2015
LLYELI LILLY & Co	$386M	3.54%	0.03%	-1.3%	Q2 2013
NVTnVent Electric plc	$348M	3.19%	1.27%	-0.7%	Q2 2018
AAPLApple Inc.	$329M	3.02%	0.01%	-5.8%	Q2 2013
JPMJPMorgan Chase & Co	$302M	2.77%	0.03%	-12.4%	Q2 2013
VVisa Inc.	$292M	2.68%	0.05%	+1.3%	Q2 2013
GGGGraco Inc	$287M	2.63%	2.29%	-0.5%	Q2 2013
LFUSLittelfuse Inc	$274M	2.52%	2.38%	-16.9%	Q1 2018
TTCToro Co	$261M	2.39%	2.81%	-1.6%	Q2 2013
ENTGEntegris Inc	$234M	2.15%	0.85%	-3.1%	Q4 2021
UNHUnitedhealth Group Inc	$233M	2.14%	0.06%	-24.4%	Q2 2013
TSMTaiwan Semiconductor Manufacturing Co Ltd	$227M	2.09%	0.00%	-2.1%	Q1 2025
MSIMotorola Solutions, Inc.	$226M	2.08%	0.33%	+0.8%	Q3 2018
ECLEcolab Inc.	$217M	1.99%	0.28%	+2.1%	Q2 2013
WECWec Energy Group, Inc.	$209M	1.92%	0.55%	-6.4%	Q2 2015
PANWPalo Alto Networks Inc	$205M	1.88%	0.07%	+12.6%	Q1 2023
LNTAlliant Energy Corp	$203M	1.86%	1.03%	-8.0%	Q4 2013
TECHBIO-TECHNE Corp	$191M	1.75%	1.73%	-1.8%	Q3 2014
METAMeta Platforms, Inc.	$188M	1.72%	Not reported	+2.5%	Q4 2015
FASTFastenal Co	$186M	1.71%	0.34%	-1.3%	Q2 2013
SHWSherwin Williams Co	$152M	1.39%	0.18%	+0.7%	Q1 2019
CHRWC. H. Robinson Worldwide, Inc.	$145M	1.33%	0.66%	-9.1%	Q2 2013
FULFuller H B Co	$142M	1.30%	4.53%	+3.1%	Q2 2013
VZVerizon Communications Inc	$139M	1.28%	0.08%	-0.7%	Q2 2013
WMWaste Management Inc	$132M	1.21%	0.15%	+48.4%	Q1 2024
ROKRockwell Automation, Inc	$128M	1.17%	0.23%	-9.1%	Q3 2016
FISVFiserv Inc	$112M	1.03%	0.43%	+6.5%	Q2 2013
JNJJohnson & Johnson	$107M	0.99%	0.02%	-26.8%	Q2 2013
AMPAmeriprise Financial Inc	$98.2M	0.90%	0.24%	+8.6%	Q3 2013
CGNXCognex Corp	$94.7M	0.87%	0.79%	+6.9%	Q1 2025
HRLHormel Foods Corp	$84.3M	0.77%	Not reported	-0.6%	Q2 2013
CASYCaseys General Stores Inc	$72.4M	0.66%	0.25%	-5.0%	Q2 2013
WFCWells Fargo & Company	$72.1M	0.66%	0.03%	-36.1%	Q2 2013
AJGArthur J. Gallagher & Co.	$71.5M	0.66%	0.12%	Not reported	Q3 2024
ABTAbbott Laboratories	$66.2M	0.61%	0.04%	+1.1%	Q2 2013
TXNTexas Instruments Inc	$64.8M	0.59%	0.02%	-5.9%	Q3 2014
TNCTennant Co	$59.7M	0.55%	4.00%	-15.1%	Q2 2013
ISRGIntuitive Surgical Inc	$58.2M	0.53%	0.04%	+46.6%	Q4 2025
MMM3m Co	$56.6M	0.52%	0.07%	-0.7%	Q2 2013
HDHome Depot, Inc.	$53.8M	0.49%	0.02%	-0.6%	Q2 2013
TRVTravelers Companies, Inc.	$51.7M	0.47%	0.08%	+9.9%	Q2 2013
AXPAmerican Express Co	$49.3M	0.45%	0.02%	-2.2%	Q2 2013
IDAIdacorp Inc	$46.9M	0.43%	0.56%	+2.9%	Q2 2025
MEDPMedpace Holdings, Inc.	$45.9M	0.42%	0.31%	+1.2%	Q3 2022
CMECme Group Inc.	$43.2M	0.40%	0.06%	New	Q2 2026
DCIDONALDSON Co INC	$41.6M	0.38%	0.40%	-7.1%	Q2 2013
WKWorkiva Inc	$40.2M	0.37%	Not reported	+15.9%	Q4 2015

Q1 2026Reported May 14, 2026216 positions
NVDANvidia Corp	$830M	8.49%	0.02%	-3.8%	Q2 2019
MSFTMicrosoft Corp	$719M	7.35%	0.03%	+1.5%	Q2 2013
AMZNAmazon Com Inc	$542M	5.54%	0.02%	+0.4%	Q4 2013
GOOGAlphabet Inc.	$462M	4.72%	Not reported	-5.1%	Q3 2015
GGGGraco Inc	$323M	3.30%	2.31%	-2.3%	Q2 2013
JPMJPMorgan Chase & Co	$310M	3.17%	0.04%	-17.4%	Q2 2013
AAPLApple Inc.	$307M	3.13%	0.01%	-0.8%	Q2 2013
LLYELI LILLY & Co	$300M	3.07%	0.03%	-5.5%	Q2 2013
VVisa Inc.	$254M	2.60%	0.04%	+4.8%	Q2 2013
TTCToro Co	$254M	2.60%	2.81%	-20.6%	Q2 2013
LFUSLittelfuse Inc	$246M	2.51%	2.89%	-7.0%	Q1 2018
NVTnVent Electric plc	$244M	2.50%	1.28%	-2.1%	Q2 2018
MSIMotorola Solutions, Inc.	$235M	2.40%	0.33%	+3.0%	Q3 2018
WECWec Energy Group, Inc.	$221M	2.26%	0.59%	+0.1%	Q2 2015
LNTAlliant Energy Corp	$207M	2.12%	1.12%	-2.3%	Q4 2013
ECLEcolab Inc.	$203M	2.07%	0.27%	-1.1%	Q2 2013
UNHUnitedhealth Group Inc	$201M	2.05%	0.08%	-10.8%	Q2 2013
METAMeta Platforms, Inc.	$186M	1.90%	Not reported	+2.6%	Q4 2015
FASTFastenal Co	$182M	1.86%	0.34%	-16.0%	Q2 2013
VZVerizon Communications Inc	$166M	1.70%	0.08%	-1.7%	Q2 2013
TSMTaiwan Semiconductor Manufacturing Co Ltd	$164M	1.68%	0.00%	-0.1%	Q1 2025
ENTGEntegris Inc	$157M	1.61%	0.88%	-0.4%	Q4 2021
FULFuller H B Co	$146M	1.49%	4.33%	-2.1%	Q2 2013
TECHBIO-TECHNE Corp	$144M	1.47%	1.76%	-0.6%	Q3 2014
JNJJohnson & Johnson	$141M	1.44%	0.02%	-28.2%	Q2 2013
CHRWC. H. Robinson Worldwide, Inc.	$141M	1.44%	0.72%	-1.7%	Q2 2013
SHWSherwin Williams Co	$140M	1.43%	0.18%	-6.8%	Q1 2019
FISVFiserv Inc	$120M	1.23%	0.40%	+31.0%	Q2 2013
WFCWells Fargo & Company	$109M	1.11%	0.04%	-21.0%	Q2 2013
ROKRockwell Automation, Inc	$102M	1.04%	0.25%	-14.2%	Q3 2016
WMWaste Management Inc	$91.5M	0.94%	0.10%	+39724.0%	Q1 2024
AMPAmeriprise Financial Inc	$87.6M	0.89%	0.22%	+362.4%	Q3 2013
PANWPalo Alto Networks Inc	$85.4M	0.87%	0.07%	+141.4%	Q1 2023
HRLHormel Foods Corp	$77.4M	0.79%	Not reported	-9.8%	Q2 2013
ABTAbbott Laboratories	$74.1M	0.76%	0.04%	+1.9%	Q2 2013
CASYCaseys General Stores Inc	$69.8M	0.71%	0.26%	-7.6%	Q2 2013
QCOMQualcomm Inc	$61.6M	0.63%	0.05%	-13.1%	Q2 2013
CGNXCognex Corp	$60M	0.61%	0.74%	+4.5%	Q1 2025
TNCTennant Co	$53.4M	0.55%	4.72%	-25.0%	Q2 2013
MMM3m Co	$51.1M	0.52%	0.07%	+0.8%	Q2 2013
HDHome Depot, Inc.	$50.5M	0.52%	0.02%	-2.3%	Q2 2013
HONHoneywell International Inc	$47.1M	0.48%	0.03%	-10.9%	Q2 2013
ISRGIntuitive Surgical Inc	$46M	0.47%	0.03%	+60.4%	Q4 2025
AXPAmerican Express Co	$45M	0.46%	0.02%	-6.7%	Q2 2013
TXNTexas Instruments Inc	$44.9M	0.46%	0.03%	-1.8%	Q3 2014
IDAIdacorp Inc	$43.1M	0.44%	0.55%	-0.4%	Q2 2025
WKWorkiva Inc	$42.7M	0.44%	Not reported	-1.7%	Q4 2015
DCIDONALDSON Co INC	$42.4M	0.43%	0.43%	-10.9%	Q2 2013
PIPRPiper Sandler Companies	$41.8M	0.43%	0.80%	New	Q1 2026
TRVTravelers Companies, Inc.	$41.5M	0.42%	0.07%	+25.1%	Q2 2013

Q4 2025Reported Feb 17, 2026215 positions
MSFTMicrosoft Corp	$925M	8.90%	0.03%	+0.4%	Q2 2013
NVDANvidia Corp	$923M	8.88%	0.02%	-11.2%	Q2 2019
AMZNAmazon Com Inc	$598M	5.76%	0.02%	+1.4%	Q4 2013
GOOGAlphabet Inc.	$533M	5.13%	Not reported	-3.7%	Q3 2015
JPMJPMorgan Chase & Co	$411M	3.96%	0.05%	-6.3%	Q2 2013
LLYELI LILLY & Co	$371M	3.57%	0.04%	-3.6%	Q2 2013
AAPLApple Inc.	$331M	3.19%	0.01%	+2.9%	Q2 2013
GGGGraco Inc	$320M	3.08%	2.36%	-0.7%	Q2 2013
VVisa Inc.	$281M	2.71%	0.04%	+1.4%	Q2 2013
UNHUnitedhealth Group Inc	$274M	2.64%	0.09%	-22.4%	Q2 2013
TTCToro Co	$269M	2.59%	3.50%	-4.9%	Q2 2013
NVTnVent Electric plc	$215M	2.07%	1.31%	-3.3%	Q2 2018
METAMeta Platforms, Inc.	$209M	2.01%	Not reported	+23.2%	Q4 2015
ECLEcolab Inc.	$202M	1.95%	0.27%	-0.8%	Q2 2013
MSIMotorola Solutions, Inc.	$201M	1.94%	0.32%	+14.1%	Q3 2018
WECWec Energy Group, Inc.	$201M	1.94%	0.59%	+6.4%	Q2 2015
LFUSLittelfuse Inc	$197M	1.90%	3.13%	-4.3%	Q1 2018
LNTAlliant Energy Corp	$192M	1.85%	1.15%	-1.2%	Q4 2013
FASTFastenal Co	$187M	1.80%	0.41%	-1.1%	Q2 2013
JNJJohnson & Johnson	$166M	1.60%	0.03%	-18.4%	Q2 2013
TECHBIO-TECHNE Corp	$163M	1.57%	1.78%	-1.4%	Q3 2014
WFCWells Fargo & Company	$161M	1.55%	0.06%	-20.4%	Q2 2013
SHWSherwin Williams Co	$152M	1.46%	0.19%	+1.2%	Q1 2019
TSMTaiwan Semiconductor Manufacturing Co Ltd	$148M	1.42%	0.00%	-1.8%	Q1 2025
FULFuller H B Co	$143M	1.38%	4.45%	+0.1%	Q2 2013
CHRWC. H. Robinson Worldwide, Inc.	$139M	1.33%	0.73%	-0.8%	Q2 2013
VZVerizon Communications Inc	$137M	1.32%	0.08%	-1.2%	Q2 2013
ROKRockwell Automation, Inc	$129M	1.24%	0.29%	-19.6%	Q3 2016
ENTGEntegris Inc	$114M	1.09%	0.89%	+13.0%	Q4 2021
FISVFiserv Inc	$110M	1.06%	0.31%	-6.1%	Q2 2013
QCOMQualcomm Inc	$94.1M	0.91%	0.05%	-15.9%	Q2 2013
HRLHormel Foods Corp	$89.8M	0.86%	Not reported	-9.5%	Q2 2013
ABTAbbott Laboratories	$88.7M	0.85%	0.04%	-2.1%	Q2 2013
TNCTennant Co	$79M	0.76%	6.00%	-19.4%	Q2 2013
CRMSalesforce, Inc.	$78.4M	0.75%	0.03%	+0.4%	Q4 2021
WKWorkiva Inc	$62.8M	0.60%	Not reported	-3.8%	Q4 2015
PJCPiper Sandler Companies	$59.7M	0.57%	Not reported	-4.7%	Q1 2023
AXPAmerican Express Co	$59M	0.57%	0.02%	-6.2%	Q2 2013
CASYCaseys General Stores Inc	$57.4M	0.55%	0.28%	-4.0%	Q2 2013
MMM3m Co	$55.9M	0.54%	0.07%	+0.8%	Q2 2013
HDHome Depot, Inc.	$54M	0.52%	0.02%	+1.0%	Q2 2013
DCIDONALDSON Co INC	$49.7M	0.48%	0.49%	-7.4%	Q2 2013
HONHoneywell International Inc	$45.6M	0.44%	0.04%	-6.1%	Q2 2013
CGNXCognex Corp	$42.2M	0.41%	0.70%	+91.0%	Q1 2025
TXNTexas Instruments Inc	$40.8M	0.39%	0.03%	-0.6%	Q3 2014
PANWPalo Alto Networks Inc	$40.6M	0.39%	0.03%	+98.4%	Q1 2023
KHCKraft Heinz Co	$40.6M	0.39%	0.14%	-25.0%	Q3 2024
MDTMedtronic plc	$39.6M	0.38%	0.03%	-4.1%	Q2 2013
IDAIdacorp Inc	$38.3M	0.37%	0.56%	+5.3%	Q2 2025
MEDPMedpace Holdings, Inc.	$37.4M	0.36%	0.24%	-4.2%	Q3 2022

Q3 2025Reported Nov 14, 2025223 positions
NVDANvidia Corp	$1.04B	9.78%	0.02%	-4.1%	Q2 2019
MSFTMicrosoft Corp	$987M	9.28%	0.03%	-5.0%	Q2 2013
AMZNAmazon Com Inc	$561M	5.27%	0.02%	+2.5%	Q4 2013
JPMJPMorgan Chase & Co	$429M	4.04%	0.05%	-9.3%	Q2 2013
GOOGAlphabet Inc.	$429M	4.03%	Not reported	-2.2%	Q3 2015
UNHUnitedhealth Group Inc	$369M	3.47%	0.12%	+1.2%	Q2 2013
GGGGraco Inc	$334M	3.14%	2.37%	-1.1%	Q2 2013
AAPLApple Inc.	$301M	2.83%	0.01%	+3.5%	Q2 2013
TTCToro Co	$274M	2.58%	3.68%	-1.4%	Q2 2013
LLYELI LILLY & Co	$273M	2.57%	0.04%	-2.0%	Q2 2013
VVisa Inc.	$270M	2.54%	0.04%	-0.5%	Q2 2013
FASTFastenal Co	$231M	2.18%	0.41%	-12.2%	Q2 2013
FISVFiserv Inc	$226M	2.12%	0.32%	+1.0%	Q2 2013
NVTnVent Electric plc	$215M	2.02%	1.35%	-7.3%	Q2 2018
ECLEcolab Inc.	$213M	2.00%	0.27%	-1.5%	Q2 2013
LFUSLittelfuse Inc	$211M	1.98%	3.28%	-6.1%	Q1 2018
MSIMotorola Solutions, Inc.	$210M	1.98%	0.28%	-3.1%	Q3 2018
WECWec Energy Group, Inc.	$206M	1.93%	0.55%	+20.2%	Q2 2015
LNTAlliant Energy Corp	$202M	1.90%	1.16%	-1.6%	Q4 2013
METAMeta Platforms, Inc.	$189M	1.77%	Not reported	+17.5%	Q4 2015
JNJJohnson & Johnson	$183M	1.72%	0.04%	-2.5%	Q2 2013
WFCWells Fargo & Company	$182M	1.71%	0.07%	-0.1%	Q2 2013
SHWSherwin Williams Co	$161M	1.51%	0.19%	+0.7%	Q1 2019
TECHBIO-TECHNE Corp	$156M	1.47%	1.80%	+3.4%	Q3 2014
VZVerizon Communications Inc	$150M	1.41%	0.08%	0.0%	Q2 2013
ROKRockwell Automation, Inc	$144M	1.35%	0.37%	-0.5%	Q3 2016
FULFuller H B Co	$143M	1.34%	4.45%	-1.6%	Q2 2013
TSMTaiwan Semiconductor Manufacturing Co Ltd	$138M	1.30%	0.00%	+10.8%	Q1 2025
CHRWC. H. Robinson Worldwide, Inc.	$115M	1.08%	0.73%	+0.7%	Q2 2013
ENTGEntegris Inc	$110M	1.04%	0.79%	+6.8%	Q4 2021
QCOMQualcomm Inc	$109M	1.02%	0.06%	-30.0%	Q2 2013
TNCTennant Co	$108M	1.01%	7.28%	-1.7%	Q2 2013
HRLHormel Foods Corp	$104M	0.97%	Not reported	-0.8%	Q2 2013
ABTAbbott Laboratories	$96.8M	0.91%	0.04%	-19.9%	Q2 2013
CRMSalesforce, Inc.	$69.9M	0.66%	0.03%	+16.1%	Q4 2021
WKWorkiva Inc	$65.2M	0.61%	Not reported	-0.1%	Q4 2015
PJCPiper Sandler Companies	$64.1M	0.60%	Not reported	-25.2%	Q1 2023
HDHome Depot, Inc.	$63M	0.59%	0.02%	+0.9%	Q2 2013
CASYCaseys General Stores Inc	$61.2M	0.58%	0.29%	-5.0%	Q2 2013
KHCKraft Heinz Co	$58.1M	0.55%	0.19%	-6.3%	Q3 2024
AXPAmerican Express Co	$56.5M	0.53%	0.02%	-10.5%	Q2 2013
MMM3m Co	$53.8M	0.51%	0.07%	+0.6%	Q2 2013
HONHoneywell International Inc	$52.5M	0.49%	0.04%	-15.0%	Q2 2013
DCIDONALDSON Co INC	$49.6M	0.47%	0.52%	-27.0%	Q2 2013
TXNTexas Instruments Inc	$43.5M	0.41%	0.03%	+2.5%	Q3 2014
MDTMedtronic plc	$41M	0.39%	0.03%	-5.4%	Q2 2013
IDAIdacorp Inc	$37.9M	0.36%	0.53%	+17.5%	Q2 2025
USBUS Bancorp \de\	$36.9M	0.35%	0.05%	-28.6%	Q2 2013
DISWalt Disney Co	$35.9M	0.34%	0.02%	+0.7%	Q2 2013
MEDPMedpace Holdings, Inc.	$35.8M	0.34%	0.25%	-8.7%	Q3 2022

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