Robert W. Mairs

Robert W. Mairs

MAIRS & POWER INC

CIK: 0001070134

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Last Update On: Nov 01, 2025

Robert W. Mairs is the Chief Executive Officer and President of Mairs & Power, Inc., an independent, employee-owned investment advisory firm. He joined the firm in 2015 as general counsel and has since held various leadership roles, including chief compliance officer and president. In October 2024, he was named CEO, succeeding Mark L. Henneman.

Sector Allocations

Trade Activity

# Ticker Activity Shares Traded Shares Value Shares Owned Avg. Buy Price Quarter Filing Date Report Date
341
USB

U.S. Bancorp

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2.14 M
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Q1 2025 05/15/2025 03/31/2025
342
MRK

Merck & Co., Inc...

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741
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Q1 2025 05/15/2025 03/31/2025
343
HD

The Home Depot, ...

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6.13 K
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Q1 2025 05/15/2025 03/31/2025
344
WTFC

Wintrust Financi...

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20.76 K
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Q1 2025 05/15/2025 03/31/2025
345
AMD

Advanced Micro D...

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95
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Q1 2025 05/15/2025 03/31/2025
346
IDXX

IDEXX Laboratori...

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96
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Q1 2025 05/15/2025 03/31/2025
347
UFCS

United Fire Grou...

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2.00 K
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Q1 2025 05/15/2025 03/31/2025
348
GNRC

Generac Holdings...

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14.29 K
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Q1 2025 05/15/2025 03/31/2025
349
OKLO

Oklo Inc.

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1.56 K
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Q1 2025 05/15/2025 03/31/2025
350
AXP

American Express...

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17.67 K
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Q1 2025 05/15/2025 03/31/2025
351
KO

The Coca-Cola Co...

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630
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Q1 2025 05/15/2025 03/31/2025
352
ABBV

AbbVie Inc.

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3.81 K
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Q1 2025 05/15/2025 03/31/2025
353
BKH

Black Hills Corp...

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15.40 K
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Q1 2025 05/15/2025 03/31/2025
354
SNA

Snap-on Incorpor...

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750
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Q1 2025 05/15/2025 03/31/2025
355
CTAS

Cintas Corporati...

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400
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Q4 2024 02/14/2025 12/31/2024
356
AXP

American Express...

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7.24 K
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Q4 2024 02/14/2025 12/31/2024
357
OKLO

Oklo Inc.

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410
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Q4 2024 02/14/2025 12/31/2024
358
BDX

Becton, Dickinso...

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123
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Q4 2024 02/14/2025 12/31/2024
359
OTIS

Otis Worldwide C...

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435
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Q4 2024 02/14/2025 12/31/2024
360
HUBG

Hub Group, Inc.

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135
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Q4 2024 02/14/2025 12/31/2024
Showing 341 to 360 of 3684 results
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Frequently Asked Questions

02

Robert W. Mairs is the Chief Executive Officer and President of Mairs & Power, Inc., an independent, employee-owned investment advisory firm. He joined the firm in 2015 as general counsel and has since held various leadership roles, including chief compliance officer and president. In October 2024, he was named CEO, succeeding Mark L. Henneman.

02

Explore Robert W. Mairs largest investments on Stocks.News, including companies like Microsoft Corporation , NVIDIA Corporation , Alphabet Inc. , and their significance in his portfolio.

02

Robert W. Mairs portfolio updates are typically published quarterly through SEC 13F filings, which provide detailed information about their holdings, including recent buys and sells.

02

Robert W. Mairs currently invests in companies such as Autodesk, Inc.

02

The largest holding in Robert W. Mairs portfolio is Microsoft Corporation.

02

As of Jun 30, 2025, Robert W. Mairs portfolio is valued at approximately $10.13 B, based on the latest filings available on Stocks.News.