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Mairs & Power

Andrew Adams

In Q2 2026, Mairs & Power held 232 US-listed stocks worth $11bn. Its biggest move was adding to Palo Alto Networks (13% more shares, now 1.9%), followed by adding to Alphabet (4% more shares, now 5.6%). It started 11 new positions and sold out of 8. Its largest holding is NVIDIA at 8.6%.

Source: SEC Form 13F for Q2 2026, filed 14 Aug 2026, and the funds’ Form N-PORT filings. How we use them

Latest 13F
Q2 2026
Filed 14 Aug 2026
US holdings
$11bn
232 companies
See holdings
Fund assets
$5.8bn
2 US-registered funds
Q3 2026 13F due
26 days
Expected Mon 16 Nov

What changed in Q2 2026

New positions

Added to

Trimmed

Sold out

Against Q1 2026, by number of shares and adjusted for splits. Up to five of each, largest first; the full list is below.

How much the 13F misses

3% of the $5.8bn of shares held in Mairs & Power’s 2 US-registered funds, by value, are not in its 13F. Those holdings are marked with a gold dot below.

US holdings from the 13F

Q2 2026, filed 14 Aug 2026 (filing): 11 new, 53 added to, 106 trimmed, 8 sold out. Select a row to see it over time. How this works
Changes compare share counts with Q1 2026, adjusted for stock splits. Share classes of the same company are combined. Values are at quarter-end prices.
13F holdings with change from the previous quarter

Download the Q2 2026 holdings: CSV · JSON · Markdown

How the portfolio has changed

Each bar is one 13F. Select a bar or press play to see that quarter’s 12 largest positions. How this works
Bars are split by share of the US portfolio: the six biggest holdings over the period in colour, everything else in grey. The last eight quarters are shown in full, earlier years at year end.
2013
2015
2017
2019
2021
2023
Q4 ’24
Q2 ’25
Q4 ’25
Q2 ’26

MSFTNVDAGOOGGGGAMZNUNHEverything else

2013: Microsoft 0.0%, NVIDIA 0.0%, Alphabet 0.0%, Graco 0.0%, Amazon.com 0.0%, UnitedHealth Group 0.0%; 2014: Microsoft 0.0%, NVIDIA 0.0%, Alphabet 0.0%, Graco 0.0%, Amazon.com 0.0%, UnitedHealth Group 0.0%; 2015: Microsoft 0.0%, NVIDIA 0.0%, Alphabet 0.0%, Graco 3.1%, Amazon.com 0.0%, UnitedHealth Group 0.0%; 2016: Microsoft 0.0%, NVIDIA 0.0%, Alphabet 0.0%, Graco 3.5%, Amazon.com 0.0%, UnitedHealth Group 0.0%; 2017: Microsoft 0.0%, NVIDIA 0.0%, Alphabet 0.0%, Graco 3.7%, Amazon.com 0.0%, UnitedHealth Group 0.0%; 2018: Microsoft 0.0%, NVIDIA 0.0%, Alphabet 3.8%, Graco 3.1%, Amazon.com 0.0%, UnitedHealth Group 0.0%; 2019: Microsoft 3.1%, NVIDIA 0.0%, Alphabet 4.5%, Graco 3.0%, Amazon.com 0.0%, UnitedHealth Group 2.7%; 2020: Microsoft 5.0%, NVIDIA 0.0%, Alphabet 5.5%, Graco 3.5%, Amazon.com 0.0%, UnitedHealth Group 3.0%; 2021: Microsoft 6.3%, NVIDIA 3.1%, Alphabet 6.3%, Graco 3.1%, Amazon.com 3.6%, UnitedHealth Group 4.3%; 2022: Microsoft 6.0%, NVIDIA 0.0%, Alphabet 4.6%, Graco 3.5%, Amazon.com 2.5%, UnitedHealth Group 5.0%; 2023: Microsoft 7.8%, NVIDIA 3.9%, Alphabet 5.0%, Graco 3.7%, Amazon.com 3.9%, UnitedHealth Group 4.5%; Q3 ’24: Microsoft 7.9%, NVIDIA 6.9%, Alphabet 4.4%, Graco 3.2%, Amazon.com 4.1%, UnitedHealth Group 4.9%; Q4 ’24: Microsoft 8.0%, NVIDIA 7.6%, Alphabet 4.1%, Graco 3.2%, Amazon.com 5.0%, UnitedHealth Group 4.3%; Q1 ’25: Microsoft 7.8%, NVIDIA 6.5%, Alphabet 3.4%, Graco 3.4%, Amazon.com 4.8%, UnitedHealth Group 4.9%; Q2 ’25: Microsoft 9.8%, NVIDIA 9.1%, Alphabet 3.2%, Graco 3.4%, Amazon.com 5.4%, UnitedHealth Group 3.3%; Q3 ’25: Microsoft 9.3%, NVIDIA 9.8%, Alphabet 4.1%, Graco 3.1%, Amazon.com 5.3%, UnitedHealth Group 3.5%; Q4 ’25: Microsoft 8.9%, NVIDIA 8.9%, Alphabet 5.3%, Graco 3.1%, Amazon.com 5.8%, UnitedHealth Group 2.6%; Q1 ’26: Microsoft 7.3%, NVIDIA 8.5%, Alphabet 4.9%, Graco 3.3%, Amazon.com 5.5%, UnitedHealth Group 0.0%; Q2 ’26: Microsoft 6.7%, NVIDIA 8.6%, Alphabet 5.6%, Graco 2.6%, Amazon.com 5.7%, UnitedHealth Group 0.0%
Q2 2026
  1. NVIDIA8.6%
  2. Microsoft6.7%
  3. Amazon.com5.7%
  4. Alphabet5.6%
  5. Eli Lilly & Co3.5%
  6. Nvent Electric3.2%
  7. Apple3.0%
  8. JPMorgan Chase2.8%
  9. Visa2.7%
  10. Graco2.6%
  11. Littelfuse2.5%
  12. Toro2.4%
Q4 2013Q2 2026

Mairs & Power Growth Fund

1 year+18.4%
3 yearsa year+15.8%
10 yearsa year+12.8%
Yearly costs0.63%

Total returns after fees for the MPGFX share class (the cheapest one with a full record). 1, 3 and 5-year figures run to 30 Jun 2026, built from the monthly returns the fund reports in its N-PORT filings and checked against its shareholder reports. The 10-year figure is from the shareholder report to 31 Dec 2025. Costs are the expense ratio in the half-year report to 30 Jun 2026, about $65 a year on $10,000. Past returns don’t predict future ones.

Full portfolio at 30 Jun 2026, from the fund’s N-PORT filing. Net assets $5.6bn. Changes are against 31 Mar 2026: 3 new, 8 added to, 16 trimmed, 3 sold out.

Mairs & Power Growth Fund holdings with change from the previous filing
NVIDIANVDAUnited States9.4%Trimmed -0.8%9.1%
MicrosoftMSFTUnited States7.9%Trimmed -1.7%8.8%
Amazon.comAMZNUnited States6.8%Trimmed -1.8%6.7%
AlphabetGOOGUnited States4.9%Added +13%3.9%
AppleAAPLUnited States3.7%Trimmed -7.8%3.9%
nVent ElectricNVTUnited Kingdom3.5%Unchanged2.7%
JPMorgan Chase & CoJPMUnited States3.2%Trimmed -20%4.0%
Taiwan Semiconductor ManufacturingTSMTaiwan3.1%Trimmed -2.7%2.5%
Roche Holding0TDFSwitzerland3.0%Unchanged3.3%
Eli Lilly & CoLLYUnited States3.0%Unchanged2.5%
VisaVUnited States2.9%Added +4.5%2.7%
GracoGGGUnited States2.7%Unchanged3.3%
LittelfuseLFUSUnited States2.6%Trimmed -25%2.8%
EntegrisENTGUnited States2.6%Unchanged1.9%
Meta PlatformsMETAUnited States2.5%Unchanged2.8%
Motorola SolutionsMSIUnited States2.4%Unchanged2.8%
Palo Alto NetworksPANWUnited States2.4%Unchanged1.2%
ToroTTCUnited States2.3%Trimmed -1.5%2.5%
WEC Energy GroupWECUnited States2.3%Trimmed -11%2.8%
Alliant EnergyLNTUnited States2.2%Trimmed -14%2.7%
UnitedHealth GroupUNHUnited States2.1%Trimmed -33%2.3%
Verizon CommunicationsVZUnited States1.8%Unchanged2.4%
Bio-TechneTECHUnited States1.8%Trimmed -0.4%1.5%
Sherwin-WilliamsSHWUnited States1.6%Unchanged1.7%
Waste ManagementWMUnited States1.5%Added +41%1.2%
CH Robinson WorldwideCHRWUnited States1.5%Trimmed -15%1.7%
FastenalFASTUnited States1.4%Unchanged1.5%
HB FullerFULUnited States1.4%Unchanged1.6%
EcolabECLUnited States1.4%Unchanged1.4%
FiservFISVUnited States1.3%Added +12%1.4%
Rockwell AutomationROKUnited States1.1%Trimmed -14%1.0%
Arthur J Gallagher & CoAJGUnited States1.0%New–
Ameriprise FinancialAMPUnited States0.9%Unchanged1.0%
CognexCGNXUnited States0.9%Unchanged0.7%
Hormel FoodsHRLUnited States0.8%Unchanged0.8%
Intuitive SurgicalISRGUnited States0.7%Added +44%0.6%
CME GroupCMEUnited States0.7%New–
IDACORPIDAUnited States0.6%Unchanged0.7%
TennantTNCUnited States0.6%Trimmed -1.3%0.5%
Casey's General StoresCASYUnited States0.6%Unchanged0.6%
Medpace HoldingsMEDPUnited States0.6%Unchanged0.6%
Sprouts Farmers MarketSFMUnited States0.5%Added +78%0.3%
WorkivaWKUnited States0.5%Added +30%0.5%
Piper Sandler CosPIPRUnited States0.5%Unchanged0.5%
ZoetisZTSUnited States0.5%Added +60%0.5%
Bentley SystemsBSYUnited States0.3%New–
ClearfieldCLFDUnited States0.1%Trimmed -54%0.2%
–Sold out0.6%
–Sold out0.5%
–Sold out0.5%

Mairs & Power Small Cap Fund

1 year+42.1%
3 yearsa year+13.4%
10 yearsa year+8.5%
Yearly costs0.96%

Total returns after fees for the MSCFX share class (the cheapest one with a full record). 1, 3 and 5-year figures run to 30 Jun 2026, built from the monthly returns the fund reports in its N-PORT filings and checked against its shareholder reports. The 10-year figure is from the shareholder report to 31 Dec 2025. Costs are the expense ratio in the half-year report to 30 Jun 2026, about $99 a year on $10,000. Past returns don’t predict future ones.

Full portfolio at 30 Jun 2026, from the fund’s N-PORT filing. Net assets $270m. Changes are against 31 Mar 2026: 2 new, 6 added to, 13 trimmed, 0 sold out.

Mairs & Power Small Cap Fund holdings with change from the previous filing
AARAIRUnited States4.5%Trimmed -4.1%4.3%
PlexusPLXSUnited States4.5%Trimmed -12%4.1%
AmbarellaAMBAUnited States4.0%Added +7.5%2.6%
CognexCGNXUnited States4.0%Trimmed -23%4.1%
Bio-TechneTECHUnited States3.9%Unchanged3.4%
Knife RiverKNFUnited States3.9%Trimmed -4.6%4.7%
EntegrisENTGUnited States3.8%Trimmed -38%4.7%
JBT MarelJBTMUnited States3.6%Added +14%3.3%
Bentley SystemsBSYUnited States3.3%Added +26%3.6%
nVent ElectricNVTUnited Kingdom3.3%Trimmed -7.3%2.9%
LittelfuseLFUSUnited States3.2%Trimmed -9.9%3.1%
QCR HoldingsQCRHUnited States3.1%Unchanged3.2%
RadNetRDNTUnited States3.0%Unchanged3.3%
Wintrust FinancialWTFCUnited States3.0%Unchanged3.0%
Patrick IndustriesPATKUnited States2.9%Added +52%2.8%
ToroTTCUnited States2.8%Unchanged3.2%
Associated Banc-CorpASBUnited States2.7%Unchanged2.7%
Black HillsBKHUnited States2.7%Unchanged3.0%
Life Time Group HoldingsLTHUnited States2.6%Unchanged2.0%
HB FullerFULUnited States2.5%Unchanged3.1%
Cullen/Frost BankersCFRUnited States2.4%Unchanged2.5%
ClearfieldCLFDUnited States2.4%Trimmed -25%2.5%
Alerus FinancialALRSUnited States2.4%Added +156%0.8%
James Hardie IndustriesJHXIreland2.2%Unchanged1.9%
TrexTREXUnited States2.1%Unchanged1.9%
Hub GroupHUBGUnited States2.1%Trimmed -19%2.5%
Glacier BancorpGBCIUnited States2.0%Unchanged2.1%
Casey's General StoresCASYUnited States2.0%Trimmed -19%2.7%
WorkivaWKUnited States1.7%Unchanged2.5%
PolarisPIIUnited States1.5%Unchanged1.4%
Medpace HoldingsMEDPUnited States1.5%Unchanged1.6%
Sprouts Farmers MarketSFMUnited States1.4%Added +104%0.8%
Northwestern Energy GroupNWEUnited States1.4%Trimmed -40%2.5%
Piper Sandler CosPIPRUnited States1.3%Unchanged1.7%
OshkoshOSKUnited States1.3%Unchanged1.5%
TennantTNCUnited States1.0%Trimmed -35%1.4%
Generac HoldingsGNRCUnited States0.9%Trimmed -7.7%0.8%
API GroupAPGUnited States0.9%Unchanged1.0%
HawkinsHWKNUnited States0.7%Unchanged0.9%
MGE EnergyMGEEUnited States0.5%New–
IDACORPIDAUnited States0.5%New–

Look-through earnings

Mairs & Power’s share of the profits of the US companies it holds. How this works
For each holding, the fraction of the company it owns times the company’s net income. Look-through earnings explained.
Look-through earnings, Q2 2026
$394m
Last 12 months, holdings with SEC financials
Price paid for those earnings
25.2×
Value of those holdings ÷ their earnings
Earnings per share growth
+25.9%
Same holdings, against a year earlier
Portfolio covered
91%
Of the 13F value
$9.7m2017
$949m2018
$481m2019
$62.5m2020
$339m2021
$338m2022
$347m2023
$360m2024
$331m2025
$229m2026*
2017: $9.7m; 2018: $949m; 2019: $481m; 2020: $62.5m; 2021: $339m; 2022: $338m; 2023: $347m; 2024: $360m; 2025: $331m; 2026 (2 quarters): $229m

Q1 Q2 Q3 Q4 · each quarter is that quarter’s profits times the stake reported at its end. *2026 so far: 2 quarters. Click a quarter to see its holdings.

Look-through earnings by holding, Q2 2026
AlphabetGOOG0.01%$244bn$34.5m$15.8m+109.4%
Amazon.comAMZN0.02%$135bn$32.3m$14.9m+89.8%
NVIDIANVDA0.02%$193bn$37.4m$11.6m+125.0%
MicrosoftMSFT0.03%$134bn$35.0m$9.4m+31.6%
JPMorgan ChaseJPM0.03%$65bn$22.3m$7.3m+19.2%
UnitedHealth GroupUNH0.06%$14bn$8.7m$3.4m-33.4%
GracoGGG2.3%$534m$12.2m$3.3m+12.4%
Verizon CommunicationsVZ0.08%$17bn$13.1m$3.0m-9.7%
Fuller HBFUL4.4%$186m$8.2m$3.0m+79.8%
Nvent ElectricNVT1.3%$598m$7.5m$2.7m+1.8%
FiservFISV0.4%$2.8bn$12.0m$2.7m-14.2%
Ameriprise FinancialAMP0.2%$3.9bn$9.1m$2.6m+30.2%
Eli Lilly & CoLLY0.04%$27bn$9.6m$2.6m+94.9%
AppleAAPL0.01%$129bn$10.0m$2.3m+31.9%
LittelfuseLFUS2.4%−$8.1m−$189k$2.1m-107.3%
Meta PlatformsMETA0.01%$68bn$8.8m$2.1m-4.6%
Motorola SolutionsMSI0.3%$2.1bn$7.0m$1.8m+1.8%
WEC Energy GroupWEC0.5%$1.7bn$9.2m$1.6m–
Sherwin WilliamsSHW0.2%$2.7bn$4.8m$1.5m+7.9%
EcolabECL0.3%$2.1bn$5.8m$1.5m+0.2%
FastenalFAST0.3%$1.4bn$4.5m$1.3m+13.7%
CH Robinson WorldwideCHRW0.6%$633m$4.1m$1.2m+19.8%
Waste ManagementWM0.1%$2.9bn$4.2m$1.2m+5.3%
Johnson & JohnsonJNJ0.02%$21bn$3.6m$959k-8.0%
Rockwell AutomationROK0.2%$1.2bn$2.8m$943k+25.2%
Bio-TechneTECH1.7%$182m$3.1m$937k+150.2%
EntegrisENTG0.8%$306m$2.6m$793k+2.2%
CognexCGNX0.8%$175m$1.3m$560k+42.0%
Palo Alto NetworksPANW0.07%$307m$230k−$211k-76.1%
Alliant EnergyLNT1.0%$821m$8.4m––

Net income is as reported (GAAP), so it includes one-off items and, for some companies, gains or losses on investments they hold. Companies that report under IFRS (most non-US companies) or whose shares we can’t match reliably are left out; “portfolio covered” shows how much is included. Look-through earnings explained. Growth compares earnings per share over the last 12 months with the 12 months a year earlier, for holdings profitable in both.

5% stake filings

Holdings of 5% or more of a company (13D and 13G), usually reported well before the next 13F. How this works
Mairs & Power’s filings since December 2024, newest first. An amendment showing less than 5% means the holding fell below the threshold. A 13D means the holder may seek to influence the company. How to read a 13D.
CompanyOwnsFormFiled
Tennant4.4%below 5%13G/A13 May 2026
Tennant5.9%13G/A17 Feb 2026
Tennant7.6%13G/A15 May 2025
Clearfield6.0%13G15 May 2025

US holdings by sector

  • Technology27.7%
  • Industrials15.5%
  • Health care11.5%
  • Consumer discretionary10.6%
  • Financials10.3%
  • Communication and media8.7%
  • Utilities5.9%
  • Materials3.9%
  • Other2.3%
  • Insurance1.4%
  • Consumer staples1.4%
  • Energy0.1%
  • Not classified0.7%

Sectors are grouped from each company’s SEC industry code, as a share of the Q2 2026 13F.

US portfolio value by quarter

$8.5bnQ3 ’23
$9.5bnQ4 ’23
$10bnQ1 ’24
$10bnQ2 ’24
$11bnQ3 ’24
$10bnQ4 ’24
$9.6bnQ1 ’25
$10bnQ2 ’25
$11bnQ3 ’25
$10bnQ4 ’25
$9.8bnQ1 ’26
$11bnQ2 ’26
Q3 ’23: $8.5bn; Q4 ’23: $9.5bn; Q1 ’24: $10bn; Q2 ’24: $10bn; Q3 ’24: $11bn; Q4 ’24: $10bn; Q1 ’25: $9.6bn; Q2 ’25: $10bn; Q3 ’25: $11bn; Q4 ’25: $10bn; Q1 ’26: $9.8bn; Q2 ’26: $11bn

From each quarter’s 13F. Changes reflect both trading and share-price moves.