MAIRS & POWER INCMAIRS & POWER INC

Institutional investor · Portfolio as of Q3 2025

Top Holdings248 positions

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Activity:

NVIDIA Corp.

5.6M$1B9.8%$7.74+2303.64%
26 qtrssince 2019-Q2
Decreased
0

Microsoft Corp.

1.9M$987M9.3%$145.46+253.16%
27 qtrssince 2019-Q1
Decreased
0

Amazon.com, Inc.

2.6M$561.2M5.3%$156.25+40.52%
27 qtrssince 2019-Q1
Increased
63

JPMorgan Chase & Co.

1.4M$429.5M4.0%$114.12+171.22%
27 qtrssince 2019-Q1
Decreased
0

Alphabet Inc.

1.8M$429.3M4.0%$59.24+310.07%
27 qtrssince 2019-Q1
Decreased
0

UnitedHealth Group Inc.

1.1M$369.5M3.5%$285.28+17.90%
27 qtrssince 2019-Q1
Increased
58

GRACO INC

3.9M$334.2M3.1%$48.02+74.45%
27 qtrssince 2019-Q1
Decreased
0

Apple Inc.

1.2M$301.2M2.8%$179.80+41.10%
27 qtrssince 2019-Q1
Increased
55

TORO CO

3.6M$274.4M2.6%$67.72+10.02%
27 qtrssince 2019-Q1
Decreased
0

Eli Lilly & Co.

358,177$273.3M2.6%$193.02+292.82%
27 qtrssince 2019-Q1
Decreased
0

Visa Inc

791,147$270.1M2.5%$190.34+77.93%
27 qtrssince 2019-Q1
Decreased
0

Fastenal Co.

4.7M$231.4M2.2%$14.86+223.08%
27 qtrssince 2019-Q1
Decreased
0

FISERV INC

1.7M$225.6M2.1%$93.05+38.56%
27 qtrssince 2019-Q1
Increased
53

NVent Electric PLC

2.2M$215.3M2.0%$20.87+369.59%
27 qtrssince 2019-Q1
Decreased
0

Ecolab Inc.

777,029$212.8M2.0%$169.56+59.77%
27 qtrssince 2019-Q1
Decreased
0

LITTELFUSE INC

813,938$210.8M2.0%$187.02+37.26%
27 qtrssince 2019-Q1
Decreased
0

Motorola Solutions Inc

460,229$210.5M2.0%$137.70+228.29%
27 qtrssince 2019-Q1
Decreased
0

WEC ENERGY GROUP INC

1.8M$205.6M1.9%$98.21+12.82%
27 qtrssince 2019-Q1
Increased
57

ALLIANT ENERGY CORP

3M$201.8M1.9%$46.87+39.49%
27 qtrssince 2019-Q1
Decreased
0

Meta Platforms Inc

256,927$188.7M1.8%$709.37+3.18%
27 qtrssince 2019-Q1
Increased
56
$10.6B
AUM
248
Positions
Q3 2025
Filing
HI score · 3.5/5
Quarterly 13F Value Change
+0%Q2'24$10.3B+3%Q3'24$10.6B-3%Q4'24$10.3B-7%Q1'25$9.6B+5%Q2'25$10.1B+5%Q3'25$10.6B
Activity profile
$ moved · Q3'25
New1%Increased41%Decreased57%Exited0%
Composition
Equity vs derivatives
Equity100%Puts0%Calls0%
Holding period
Avg 4.9 years
<1Q5%1-4Q6%1-2Y5%2Y+84%

MAIRS & POWER INC manages $10.6B across 248 positions as of Q3 2025. Top holdings: NVDA (9.8%), MSFT (9.3%), AMZN (5.3%). Fund DNA: Steady Compounder. HoldingsIntel Score: 3.5/5.0.

Q3 2025 Summary

Active quarter - 24 new positions, 11 exits, 65 increased. Top move: AMZN (INCREASED, conviction 63). Portfolio: $10.6B across 248 positions.

Top holdings by portfolio weight

Total AUM$11B
NVDA9.78%
MSFT9.28%
AMZN5.27%
JPM4.04%
GOOG4.03%
UNH3.47%
GGG3.14%
AAPL2.83%
TTC2.58%
LLY2.57%
Other2.54%

Portfolio allocation by GICS sector

Sectors11
Technology32.43%
Industrials15.82%
Healthcare11.37%
Financial Services11.30%
Communication Services7.62%
Consumer Cyclical6.72%
Basic Materials4.98%
Utilities4.62%
Unknown2.55%
Consumer Defensive2.42%
Other0.17%

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&L77
Conviction38
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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Data sourced from SEC EDGAR 13F filings. Not financial advice. Full disclaimer

Verify source filings on SEC EDGAR

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