MAIRS & POWER INC

CIK

1070134

Location

St Paul, MN

Portfolio Value

Mid $9,229,828,486

Diversification

Diversified

Filing Date

Global Rank

#445 / 8,586 ▼ 13

Top Industry

Semiconductors 12.2%

3Y Alpha vs SPY

-7.5%

Period ended 3 months ago

Filed May 14, 2026 · 33d

25 quarters · since Mar 2020

Clone Performance

Jun 2023–Jun 2026 · vs SPY

Hypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.

Cloned portfolio

+47.2%

SPY

+78.1%

Annualised alpha

-7.5%

Max drawdown

−19.6%

Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.

Portfolio Concentration

213 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025

Top Position

9.0%

−0.5 pts

Top 5

29.5%

−3.5 pts

Top 10

44.3%

−3.9 pts

HHI

321

Diversified−40

Portfolio Trend

25 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026

Sector	% Portfolio	Value	Positions
Technology	33.3%	$3,075,733,496	37
Industrials	17.7%	$1,637,841,965	45
Healthcare	11.5%	$1,059,907,916	30
Financial Services	10.6%	$979,234,255	29
Consumer Cyclical	7.5%	$688,610,148	14
Utilities	5.6%	$518,650,864	9
Basic Materials	5.5%	$511,028,507	10
Communication Services	4.2%	$391,746,999	6
Consumer Defensive	2.1%	$196,535,293	15
Unclassified	1.5%	$140,252,478	6
Energy	0.3%	$29,055,616	10
Real Estate	0.0%	$1,230,949	2

Last Quarter's Activity

Export CSV

Mar 31, 2026 vs Dec 31, 2025

Added To

Positions the filer increased

25 positions

Ticker	Company	Δ Shares	Shares	Value
FISV	Fiserv Inc	+509,603	2,152,853	$120,129,197
WM	Waste Management Inc	+397,240	398,240	$91,511,569
PANW	Palo Alto Networks Inc	+312,032	532,679	$85,399,097
AMP	Ameriprise Financial Inc	+154,436	197,047	$87,567,686
BSY	Bentley Systems Inc	+153,172	236,158	$8,293,868
JHX	James Hardie Industries plc	+150,088	240,761	$4,560,013
ZTS	Zoetis Inc.	+76,716	303,116	$35,831,342
CGNX	Cognex Corp	+52,279	1,223,875	$59,957,636
V	Visa Inc.	+38,399	840,917	$254,158,754
ISRG	Intuitive Surgical Inc	+37,608	99,885	$46,045,986
RDNT	RadNet, Inc.	+37,468	133,116	$7,439,853
MSFT	Microsoft Corp	+29,495	1,942,391	$719,014,876
TRV	Travelers Companies, Inc.	+28,614	142,414	$41,539,315
PG	PROCTER & GAMBLE Co	+27,144	243,410	$35,158,140
TREX	Trex Co Inc	+25,370	116,022	$4,225,521
MEDP	Medpace Holdings, Inc.	+19,055	85,720	$41,161,886
PATH	UiPath, Inc.	+18,575	30,700	$340,770
CVX	Chevron Corp	+17,405	39,017	$8,072,617
MSI	Motorola Solutions, Inc.	+15,518	540,732	$234,661,466
ABT	Abbott Laboratories	+13,697	721,778	$74,104,947
ADP	Automatic Data Processing Inc	+13,655	124,436	$25,282,906
HWKN	Hawkins Inc	+13,382	25,951	$3,986,073
WTFC	Wintrust Financial Corp	+11,111	57,744	$8,022,951
KNF	Knife River Corp	+10,573	134,428	$10,976,046
AMZN	Amazon Com Inc	+10,144	2,602,912	$542,108,482
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
KHC	Kraft Heinz Co	−1,356,268	316,563	$7,119,501
FAST	Fastenal Co	−745,057	3,922,442	$182,001,308
TTC	Toro Co	−703,840	2,718,983	$254,061,771
HRL	Hormel Foods Corp /De/	−371,554	3,417,959	$77,416,771
WFC	Wells Fargo & Company/Mn	−363,465	1,365,876	$108,737,388
TNC	Tennant Co	−268,160	803,464	$53,350,009
CRM	Salesforce, Inc.	−246,017	49,996	$9,332,753
JNJ	Johnson & Johnson	−226,756	577,590	$141,186,099
JPM	Jpmorgan Chase & Co	−222,207	1,054,197	$310,102,589
NVDA	Nvidia Corp	−188,297	4,761,351	$830,379,614
SKYT	SkyWater Technology, Inc	−169,131	13,000	$356,330
ONB	Old National Bancorp /In/	−156,769	433,191	$9,573,521
GGG	Graco Inc	−89,898	3,815,684	$322,997,650
UNH	Unitedhealth Group Inc	−89,452	741,083	$200,529,648
HUBG	Hub Group, Inc.	−76,103	159,933	$5,763,985
QCOM	Qualcomm Inc/De	−72,253	478,055	$61,563,922
LNT	Alliant Energy Corp	−67,887	2,889,060	$207,318,945
DCI	DONALDSON Co INC	−61,279	499,374	$42,381,871
VZ	Verizon Communications Inc	−58,236	3,315,436	$166,434,887
DIS	Walt Disney Co	−56,337	239,846	$23,116,357
LFUS	Littelfuse Inc /De	−54,241	724,710	$245,930,338
FUL	Fuller H B Co	−49,450	2,361,617	$145,664,536
PFG	Principal Financial Group Inc	−47,934	163,884	$14,767,587
ROK	Rockwell Automation, Inc	−46,781	283,553	$101,761,500
USB	US Bancorp De	−46,462	601,518	$31,284,951
No positions match the current search.

New Positions

Positions the filer opened this quarter

14 positions

Ticker	Company	Shares	Value
SFM	Sprouts Farmers Market, Inc.	292,177	$22,535,612
AMBA	Ambarella Inc	117,581	$6,053,069
APG	APi Group Corp	57,969	$2,348,903
SOLS	Solstice Advanced Materials Inc.	22,239	$1,693,722
AMCR	Amcor plc	17,129	$680,877
GLD	Spdr Gold Trust	1,430	$615,314
MDY	Spdr S&P Midcap 400 ETF Trust	819	$505,126
WAT	Waters Corp /De/	958	$285,292
MU	Micron Technology Inc	693	$234,123
UTHR	UNITED THERAPEUTICS Corp	350	$207,543
MUR	Murphy Oil Corp	5,000	$206,250
ADI	Analog Devices Inc	648	$206,154
TKR	Timken Co	2,000	$201,140
SNAP	Snap Inc	22,525	$103,615
No positions match the current search.

Sold Out

Positions the filer fully exited

13 positions

Ticker	Company	Shares	Value
PIPR	Piper Sandler Companies	175,861	$14,935,435
INSP	Inspire Medical Systems, Inc.	57,616	$5,313,923
MGPI	Mgp Ingredients Inc	173,245	$4,209,853
CWAN	Clearwater Analytics Holdings, Inc.	92,510	$2,231,341
THRM	Gentherm Inc	52,946	$1,925,646
EXAS	EXACT SCIENCES CORP	17,236	$1,750,488
CVRX	CVRx, Inc.	142,456	$1,011,437
ADSK	Autodesk, Inc.	801	$237,104
RF	Regions Financial Corp	7,620	$206,502
ETN	Eaton Corp plc	648	$206,394
NVS	Novartis AG	1,485	$204,736
BLK	BlackRock, Inc.	190	$203,364
SONY	Sony Group Corp	7,830	$200,448
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

213 positions · $9,229,828,486 total · as of Mar 31, 2026

All sectors Basic Materials Communication Services Consumer Cyclical Consumer Defensive Energy Financial Services Healthcare Industrials Real Estate Technology Utilities

Showing 1–50 of 213 positions by value · page 1 of 5

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
NVDA	Nvidia Corp Technology	Reduced	4,761,351	-188,297	$830,379,614	−10.0%	9.00%
MSFT	Microsoft Corp Technology	Added	1,942,391	+29,495	$719,014,876	−22.3%	7.79%
AMZN	Amazon Com Inc Consumer Cyclical	Added	2,602,912	+10,144	$542,108,482	−9.4%	5.87%
GGG	Graco Inc Industrials	Reduced	3,815,684	-89,898	$322,997,650	+0.9%	3.50%
JPM	Jpmorgan Chase & Co Financial Services	Reduced	1,054,197	-222,207	$310,102,589	−24.6%	3.36%
AAPL	Apple Inc. Technology	Reduced	1,208,398	-9,088	$306,679,328	−7.3%	3.32%
LLY	ELI LILLY & Co Healthcare	Reduced	326,306	-19,039	$300,126,469	−19.1%	3.25%
V	Visa Inc. Financial Services	Added	840,917	+38,399	$254,158,754	−9.7%	2.75%
TTC	Toro Co Industrials	Reduced	2,718,983	-703,840	$254,061,771	−5.7%	2.75%
LFUS	Littelfuse Inc /De Technology	Reduced	724,710	-54,241	$245,930,338	+24.8%	2.66%
NVT	nVent Electric plc Industrials	Reduced	2,066,420	-44,791	$244,416,157	+13.5%	2.65%
MSI	Motorola Solutions, Inc. Technology	Added	540,732	+15,518	$234,661,466	+16.6%	2.54%
WEC	Wec Energy Group, Inc. Utilities	Added	1,910,685	+1,911	$221,200,002	+9.9%	2.40%
LNT	Alliant Energy Corp Utilities	Reduced	2,889,060	-67,887	$207,318,945	+7.8%	2.25%
ECL	Ecolab Inc. Basic Materials	Reduced	761,818	-8,753	$202,658,824	+0.2%	2.20%
UNH	Unitedhealth Group Inc Healthcare	Reduced	741,083	-89,452	$200,529,648	−26.9%	2.17%
META	Meta Platforms, Inc. Communication Services	Added	324,625	+8,096	$185,727,701	−11.1%	2.01%
FAST	Fastenal Co Industrials	Reduced	3,922,442	-745,057	$182,001,308	−2.8%	1.97%
VZ	Verizon Communications Inc Communication Services	Reduced	3,315,436	-58,236	$166,434,887	+21.1%	1.80%
TSM	Taiwan Semiconductor Manufacturing Co Ltd Technology	Reduced	486,253	-294	$164,329,201	+11.1%	1.78%
ENTG	Entegris Inc Technology	Reduced	1,343,104	-5,882	$157,465,512	+38.6%	1.71%
FUL	Fuller H B Co Basic Materials	Reduced	2,361,617	-49,450	$145,664,536	+1.6%	1.58%
TECH	BIO-TECHNE Corp Healthcare	Reduced	2,750,282	-17,257	$143,729,737	−11.7%	1.56%
JNJ	Johnson & Johnson Healthcare	Reduced	577,590	-226,756	$141,186,099	−15.2%	1.53%
CHRW	C. H. Robinson Worldwide, Inc. Industrials	Reduced	848,203	-14,280	$140,861,072	+1.6%	1.53%
SHW	Sherwin Williams Co Basic Materials	Reduced	437,760	-31,832	$140,323,968	−7.8%	1.52%
FISV	Fiserv Inc	Added	2,152,853	+509,603	$120,129,197	+8.8%	1.30%
WFC	Wells Fargo & Company/Mn Financial Services	Reduced	1,365,876	-363,465	$108,737,388	−32.5%	1.18%
ROK	Rockwell Automation, Inc Industrials	Reduced	283,553	-46,781	$101,761,500	−20.8%	1.10%
WM	Waste Management Inc Industrials	Added	398,240	+397,240	$91,511,569	+41551.1%	0.99%
AMP	Ameriprise Financial Inc Financial Services	Added	197,047	+154,436	$87,567,686	+319.1%	0.95%
PANW	Palo Alto Networks Inc Technology	Added	532,679	+312,032	$85,399,097	+110.1%	0.93%
HRL	Hormel Foods Corp /De/ Consumer Defensive	Reduced	3,417,959	-371,554	$77,416,771	−13.8%	0.84%
ABT	Abbott Laboratories Healthcare	Added	721,778	+13,697	$74,104,947	−16.5%	0.80%
CASY	Caseys General Stores Inc Consumer Cyclical	Reduced	95,937	-7,936	$69,828,704	+21.6%	0.76%
QCOM	Qualcomm Inc/De Technology	Reduced	478,055	-72,253	$61,563,922	−34.6%	0.67%
CGNX	Cognex Corp Technology	Added	1,223,875	+52,279	$59,957,636	+42.2%	0.65%
TNC	Tennant Co Industrials	Reduced	803,464	-1,339,634	$53,350,009	−66.2%	0.58%
MMM	3M Co Industrials	Added	351,848	+2,701	$51,098,885	−8.6%	0.55%
HD	Home Depot, Inc. Consumer Cyclical	Reduced	153,398	-3,655	$50,451,068	−6.6%	0.55%
HON	Honeywell International Inc Industrials	Reduced	208,448	-25,528	$47,115,501	+3.2%	0.51%
ISRG	Intuitive Surgical Inc Healthcare	Added	99,885	+37,608	$46,045,986	+30.5%	0.50%
AXP	American Express Co Financial Services	Reduced	148,821	-10,638	$45,015,376	−23.7%	0.49%
TXN	Texas Instruments Inc Technology	Reduced	231,151	-4,273	$44,875,655	+9.9%	0.49%
IDA	Idacorp Inc Utilities	Reduced	301,377	-1,131	$43,087,869	+12.5%	0.47%
WK	Workiva Inc Technology	Reduced	715,640	-12,354	$42,673,613	−32.0%	0.46%
DCI	DONALDSON Co INC Industrials	Reduced	499,374	-61,279	$42,381,871	−14.7%	0.46%
TRV	Travelers Companies, Inc. Financial Services	Added	142,414	+28,614	$41,539,315	+25.8%	0.45%
MEDP	Medpace Holdings, Inc. Healthcare	Added	85,720	+19,055	$41,161,886	+9.9%	0.45%
ZTS	Zoetis Inc. Healthcare	Added	303,116	+76,716	$35,831,342	+25.8%	0.39%