MAIRS & POWER INCMAIRS & POWER INC

Institutional investor · Portfolio as of Q2 2026

Top Holdings254 positions

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Activity:
Stock
Shares
Value
Weight
Avg Buy
Est. P&L
Held
Conviction

NVIDIA CORP

4.7M$942M8.6%$112.12+86.99%
29 qtrssince 2019-Q2
Decreased
0

MICROSOFT CORP

2M$727.7M6.7%$151.07+228.57%
30 qtrssince 2019-Q1
Increased
62

AMAZON.COM INC

2.6M$619.6M5.7%$119.94+117.01%
30 qtrssince 2019-Q1
Decreased
0

ALPHABET INC-CL C

1.7M$594.8M5.5%$106.46+218.51%
30 qtrssince 2019-Q1
Increased
64

ELI LILLY & CO

322,129$386.4M3.5%$193.02+516.21%
30 qtrssince 2019-Q1
Decreased
0

NVENT ELECTRIC PLC

2.1M$348.2M3.2%$20.87+643.94%
30 qtrssince 2019-Q1
Decreased
0

APPLE INC

1.1M$329.4M3.0%$186.50+68.07%
30 qtrssince 2019-Q1
Decreased
0

JPMORGAN CHASE & CO

923,550$302.3M2.8%$115.55+208.53%
30 qtrssince 2019-Q1
Decreased
0

VISA INC-CLASS A SHARES

852,050$292.3M2.7%$199.43+92.49%
30 qtrssince 2019-Q1
Increased
54

GRACO INC

3.8M$287.1M2.6%$48.02+65.76%
30 qtrssince 2019-Q1
Decreased
0

LITTELFUSE INC

602,104$274.2M2.5%$187.02+123.89%
30 qtrssince 2019-Q1
Decreased
0

TORO CO

2.7M$260.7M2.4%$68.54+46.40%
30 qtrssince 2019-Q1
Decreased
0

ENTEGRIS INC

1.3M$234.1M2.1%$98.93+44.00%
19 qtrssince 2021-Q4
Decreased
0

UNITEDHEALTH GROUP INC

559,951$232.7M2.1%$290.12+38.22%
30 qtrssince 2019-Q1
Decreased
0
TSMTSM
ADR

TAIWAN SEMICONDUCTOR SPONSORED ADR /1 ADR REPS 5 ORD SHS/

476,245$227.4M2.1%$180.64+131.23%
6 qtrssince 2025-Q1
Decreased
0

MOTOROLA SOLUTIONS INC

544,876$226.3M2.1%$179.34+171.71%
30 qtrssince 2019-Q1
Increased
53

ECOLAB INC

777,541$216.6M2.0%$173.29+67.69%
30 qtrssince 2019-Q1
Increased
49

WEC ENERGY GROUP INC

1.8M$208.8M1.9%$98.50+9.16%
30 qtrssince 2019-Q1
Decreased
0

PALO ALTO NETWORKS INC

599,841$204.6M1.9%$188.46+80.04%
14 qtrssince 2023-Q1
Increased
54

ALLIANT ENERGY CORP

2.7M$202.8M1.9%$46.87+47.04%
30 qtrssince 2019-Q1
Decreased
0
$10.9B
AUM
254
Positions
Q2 2026
Filing
3.5/5
HI score
Quarterly 13F Value Change
-7%Q1'25$9.6B+5%Q2'25$10.1B+5%Q3'25$10.6B-2%Q4'25$10.4B-6%Q1'26$9.8B+11%Q2'26$10.9B
Activity profile
$ moved · Q2'26
New8%Increased30%Decreased59%Exited3%
Composition
Equity vs derivatives
Equity100%Puts0%Calls0%
Holding period
Avg 5.2 years
<1Q4%1-4Q9%1-2Y7%2Y+80%

MAIRS & POWER INC manages $10.9B across 254 positions as of Q2 2026. Top holdings: NVDA (8.6%), MSFT (6.7%), AMZN (5.7%). Fund DNA: Steady Compounder. HoldingsIntel Score: 3.5/5.0.

Q2 2026 Summary

Active quarter - 17 new positions, 8 exits, 56 increased. Top move: GOOG (INCREASED, conviction 64). Portfolio: $10.9B across 254 positions.

Top holdings by portfolio weight

Total AUM$11B
NVDA8.64%
MSFT6.68%
AMZN5.68%
GOOG5.46%
LLY3.54%
NVT3.19%
AAPL3.02%
JPM2.77%
V2.68%
GGG2.63%
Other2.52%

Portfolio allocation by GICS sector

Sectors11
Technology32.79%
Industrials16.37%
Healthcare11.03%
Financial Services10.40%
Communication Services8.84%
Consumer Cyclical7.15%
Basic Materials4.92%
Utilities4.66%
Consumer Defensive1.94%
Unknown1.67%
Other0.23%

Behavioral investing profile

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Steady Compounder- primarily Technology, Industrials, Healthcare
Compare DNA across all funds
7-dimension, SEC 13F-derived research score
Strong(3.5 / 5.0)
Holdings P&L78
Conviction39
Concentration67
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Position Outcomes

Best and worst performing positions by estimated return

Cost basis estimates based on full filing history using quarter-end prices. Actual transaction prices are not disclosed in 13F filings.

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Accumulation Streaks

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5Q
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Data sourced from SEC EDGAR 13F filings. Not financial advice. Full disclaimer

Verify source filings on SEC EDGAR

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