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Institutional

MAIRS & POWER INC

CIK 0001070134
$9.79B
Reported AUM
245
Positions
Q1 2026
Period
2026-05-14
Filed

The Brief · MAIRS & POWER INC · Q1 2026

AI · grounded in 13F

MAIRS & POWER INC established a new position in PIPR valued at $41.8M. The fund significantly increased its holdings in WM by 39,724% and AMP by 362.4%. These additions occurred alongside reductions in positions for JPM, which was trimmed by 17.4%, and UNH, which was trimmed by 10.8%.

Portfolio · Q1 2026

NVDA$830.4MMSFT$719.0MAMZN$542.1MGOOGGGGJPMAAPLLLYVTTCLFUSNVTOther$4.99BMI

Top holdings

#StockIssuerPriceDay %1Y Gr.5Y Gr.Value% of bookΔ shares (QoQ)Status
1NVDANVIDIA CORPORATION$195.042.65%12.42%774.16%$830.4M8.49%HELD
2MSFTMICROSOFT CORP$451.1015.51%-13.24%55.41%$719.0M7.35%HELD
3AMZNAMAZON COM INC$235.503.90%9.66%35.70%$542.1M5.54%HELD
4GOOGALPHABET INC$333.68-0.62%77.27%132.86%$462.3M4.72%HELD
5GGGGRACO INC$79.99-1.50%-2.31%8.14%$323.0M3.30%HELD
6JPMJPMORGAN CHASE & CO$350.851.78%23.57%148.58%$310.1M3.17%HELD
7AAPLAPPLE INC$333.43-1.41%65.41%124.96%$306.7M3.13%HELD
8LLYELI LILLY & CO$1154.97-4.55%54.61%373.33%$300.1M3.07%HELD
9VVISA INC$366.27-0.67%8.37%65.12%$254.2M2.60%HELD
10TTCTORO CO$91.58-0.82%27.87%-9.77%$254.1M2.60%HELD
11LFUSLITTELFUSE INC$442.007.68%78.47%62.88%$245.9M2.51%HELD
12NVTNVENT ELEC PLC$144.808.38%62.18%351.02%$244.4M2.50%HELD
13MSIMOTOROLA SOLUTIONS INC$430.82-0.78%-2.15%83.56%$234.7M2.40%HELD
14WECWEC ENERGY GROUP INC$110.05-1.11%3.33%37.15%$221.2M2.26%HELD
15LNTALLIANT ENERGY CORP$70.89-1.54%11.19%36.72%$207.3M2.12%HELD
16ECLECOLAB INC$279.34-1.54%9.85%33.08%$202.7M2.07%HELD
17UNHUNITEDHEALTH GROUP INC$421.470.21%80.84%9.82%$200.5M2.05%HELD
18METAMETA PLATFORMS INC$539.03-7.95%-27.89%43.33%$185.7M1.90%HELD
19FASTFASTENAL CO$46.66-2.34%7.43%93.00%$182.0M1.86%HELD
20VZVERIZON COMMUNICATIONS INC$46.11-2.35%16.40%16.53%$166.4M1.70%HELD
21TSMTAIWAN SEMICONDUCTOR MANUFAC$403.317.64%73.36%267.64%$164.3M1.68%HELD
22ENTGENTEGRIS INC$117.119.44%41.93%-9.20%$157.5M1.61%HELD
23FULFULLER H B CO$55.38-0.68%-0.10%-13.73%$145.7M1.49%HELD
24TECHBIO-TECHNE CORP$72.030.00%32.02%-41.01%$143.7M1.47%HELD
25JNJJOHNSON & JOHNSON$255.82-3.66%56.99%69.37%$141.2M1.44%HELD
26CHRWC H ROBINSON WORLDWIDE IN$146.92-15.44%37.38%91.75%$140.9M1.44%HELD
27SHWSHERWIN WILLIAMS CO$344.840.28%1.35%18.55%$140.3M1.43%HELD
28FISVFISERV INC$54.07-2.80%-60.05%-54.10%$120.1M1.23%HELD
29WMT2WELLS FARGO & CO$108.7M1.11%HELD
30ROKROCKWELL AUTOMATION INC$471.012.53%38.83%57.06%$101.8M1.04%HELD
31WMWASTE MGMT INC DEL$226.33-4.34%$91.5M0.94%HELD
32AMPAMERIPRISE FINL INC$544.460.77%$87.6M0.89%HELD
33PANWPALO ALTO NETWORKS INC$325.683.67%$85.4M0.87%HELD
34HRLHORMEL FOODS CORP$25.37-1.67%$77.4M0.79%HELD
35ABTABBOTT LABORATORIES$105.61-2.21%$74.1M0.76%HELD
36CASYCASEYS GEN STORES INC$867.500.04%$69.8M0.71%HELD
37QCOMQUALCOMM INC$151.60-2.62%$61.6M0.63%HELD
38CGNXCOGNEX CORP$62.628.30%$60.0M0.61%HELD
39TNCTENNANT CO$82.68-2.00%$53.4M0.55%HELD
40MMM3M CO$176.07-1.06%$51.1M0.52%HELD
41HDHOME DEPOT INC$333.35-1.45%$50.5M0.52%HELD
42HONHONEYWELL INTL INC$241.910.33%$47.1M0.48%HELD
43ISRGINTUITIVE SURGICAL INC$352.97-0.04%$46.0M0.47%HELD
44AXPAMERICAN EXPRESS CO$337.521.82%$45.0M0.46%HELD
45TXNTEXAS INSTRS INC$278.762.75%$44.9M0.46%HELD
46IDAIDACORP INC$141.90-1.73%$43.1M0.44%HELD
47WKWORKIVA INC$58.54-4.74%$42.7M0.44%HELD
48DCIDONALDSON INC$92.660.17%$42.4M0.43%HELD
49PIPRPIPER SANDLER COMPANIES$76.183.20%$41.8M0.43%HELD
50TRVTRAVELERS COMPANIES INC$375.99-3.35%$41.5M0.42%HELD
51MEDPMEDPACE HLDGS INC$578.30-1.13%$41.2M0.42%HELD
52ZTSZOETIS INC$76.03-2.44%$35.8M0.37%HELD
53PGPROCTER & GAMBLE CO$143.96-1.46%$35.2M0.36%HELD
54MDTMEDTRONIC PLC$85.71-2.09%$34.8M0.36%HELD
55XELXCEL ENERGY INC$78.23-0.66%$32.0M0.33%HELD
56USBUS BANCORP$62.900.13%$31.3M0.32%HELD
57ADPAUTOMATIC DATA PROCESSING IN$263.87-3.48%$25.3M0.26%HELD
58SCHWSCHWAB CHARLES CORP$104.33-0.13%$23.3M0.24%HELD
59DISDISNEY WALT CO$96.16-2.36%$23.1M0.24%HELD
60SFMSPROUTS FMRS MKT INC$86.859.71%$22.5M0.23%HELD
61TGTTARGET CORP$144.51-0.95%$20.5M0.21%HELD
62GNRCGENERAC HLDGS INC$191.91-1.68%$19.5M0.20%HELD
63CLFDCLEARFIELD INC$30.894.68%$19.4M0.20%HELD
64SPYSTATE STR SPDR S&P 500 ETF T$741.691.68%$17.7M0.18%HELD
65GOOGLALPHABET INC$333.66-0.91%$16.0M0.16%HELD
66BMIBADGER METER INC$130.39-2.36%$16.0M0.16%HELD
67PFGPRINCIPAL FINANCIAL GROUP IN$113.950.68%$14.8M0.15%HELD
68XOMEXXON MOBIL CORP$156.970.14%$14.2M0.14%HELD
69HSYHERSHEY CO$177.23-3.63%$13.4M0.14%HELD
70CATCATERPILLAR INC$809.143.38%$13.1M0.13%HELD
71GLWCORNING INC$135.229.00%$12.0M0.12%HELD
72BRK/BBERKSHIRE HATHAWAY INC DEL$11.5M0.12%HELD
73KNFKNIFE RIVER CORP$73.05-4.16%$11.0M0.11%HELD
74ABBVABBVIE INC$257.41-2.24%$9.9M0.10%HELD
75AIRAAR CORP$139.483.01%$9.8M0.10%HELD
76ONBOLD NATL BANCORP IND$26.41-1.01%$9.6M0.10%HELD
77CRMSALESFORCE INC$180.71-4.07%$9.3M0.10%HELD
78PLXSPLEXUS CORP$241.990.62%$9.3M0.09%HELD
79MINNTRUST FOR PROFESSIONAL MANAG$21.93-0.16%$9.1M0.09%HELD
80VOOVANGUARD INDEX FDS$681.791.66%$8.9M0.09%HELD
81EMREMERSON ELEC CO$148.642.00%$8.5M0.09%HELD
82BSYBENTLEY SYS INC$35.21-4.73%$8.3M0.08%HELD
83CVXCHEVRON CORPORATION$192.310.23%$8.1M0.08%HELD
84WTFCWINTRUST FINL CORP$159.650.28%$8.0M0.08%HELD
85QCRHQCR HLDGS INC$103.100.16%$7.8M0.08%HELD
86JBTMJBT MAREL CORPORATION$140.37-0.56%$7.6M0.08%HELD
87RDNTRADNET INC$62.69-1.07%$7.4M0.08%HELD
88KHCKRAFT HEINZ CO$26.38-4.49%$7.1M0.07%HELD
89SYYSYSCO CORP$84.71-0.71%$7.1M0.07%HELD
90ASBASSOCIATED BANC-CORP$30.760.13%$7.0M0.07%HELD
91BKHBLACK HILLS CORP$72.23-0.97%$6.8M0.07%HELD
92SCHBSCHWAB STRATEGIC TR$28.681.63%$6.6M0.07%HELD
93PATKPATRICK INDS INC$84.00-3.02%$6.4M0.07%HELD
94MRKMERCK & CO INC$129.79-0.44%$6.1M0.06%HELD
95AMBAAMBARELLA INC$74.097.08%$6.1M0.06%HELD
96CFRCULLEN FROST BANKERS INC$163.49-2.06%$5.9M0.06%HELD
97HUBGHUB GROUP INC$45.41-4.78%$5.8M0.06%HELD
98NWENORTHWESTERN ENERGY GROUP IN$69.73-1.25%$5.7M0.06%HELD
99PNRPENTAIR PLC$66.17-0.63%$5.0M0.05%HELD
100WWDWOODWARD INC$356.28-7.56%$5.0M0.05%HELD
101OSKOSHKOSH CORP$4.9M0.05%HELD
102GBCIGLACIER BANCORP INC NEW$4.7M0.05%HELD
103SOLVSOLVENTUM CORP$4.7M0.05%HELD
104LTHLIFE TIME GROUP HOLDINGS INC$4.6M0.05%HELD
105JHXJAMES HARDIE INDS PLC$4.6M0.05%HELD
106ORCLORACLE CORP$4.5M0.05%HELD
107MCDMCDONALDS CORP$4.5M0.05%HELD
108TREXTREX INC$4.2M0.04%HELD
109IVVISHARES TR$4.2M0.04%HELD
110HWKNHAWKINS INC$4.0M0.04%HELD
111AMATAPPLIED MATLS INC$3.9M0.04%HELD
112CTASCINTAS CORP$3.8M0.04%HELD
113GISGENERAL MILLS INC$3.6M0.04%HELD
114BRK/ABERKSHIRE HATHAWAY INC DEL$3.6M0.04%HELD
115NKENIKE INC$3.5M0.04%HELD
116COPCONOCOPHILLIPS$3.4M0.04%HELD
117PIIPOLARIS INC$3.4M0.03%HELD
118VOVANGUARD INDEX FDS$3.2M0.03%HELD
119COSTCOSTCO WHOLESALE CORPORATION$3.0M0.03%HELD
120VEAVANGUARD TAX-MANAGED FDS$2.9M0.03%HELD
121APGAPI GROUP CORP$2.3M0.02%HELD
122GEGE AEROSPACE$2.1M0.02%HELD
123PFEPFIZER INC$2.0M0.02%HELD
124WMTWALMART INC$2.0M0.02%HELD
125ALRSALERUS FINL CORP$1.9M0.02%HELD
126KOCOCA COLA CO$1.8M0.02%HELD
127AMGNAMGEN INC$1.7M0.02%HELD
128UPSUNITED PARCEL SVCS INC$1.7M0.02%HELD
129SOLSSOLSTICE ADVANCED MATLS INC$1.7M0.02%HELD
130XYLXYLEM INC$1.7M0.02%HELD
131RTXRTX CORPORATION$1.7M0.02%HELD
132LOWLOWES COS INC$1.6M0.02%HELD
133CSCOCISCO SYS INC$1.5M0.02%HELD
134EFAISHARES TR$1.5M0.02%HELD
135VBVANGUARD INDEX FDS$1.5M0.02%HELD
136BMYBRISTOL-MYERS SQUIBB CO$1.5M0.01%HELD
137PEPPEPSICO INC$1.4M0.01%HELD
138SYKSTRYKER CORPORATION$1.4M0.01%HELD
139WABWABTEC$1.3M0.01%HELD
140PSXPHILLIPS 66$1.2M0.01%HELD
141IDXXIDEXX LABS INC$1.2M0.01%HELD
142NEENEXTERA ENERGY INC$1.1M0.01%HELD
143SNASNAP ON INC$1.1M0.01%HELD
144BDXBECTON DICKINSON & CO$1.1M0.01%HELD
145VWOVANGUARD INTL EQUITY INDEX F$1.1M0.01%HELD
146AVGOBROADCOM INC$1.1M0.01%HELD
147CIENCIENA CORP$1.1M0.01%HELD
148BACBANK AMERICA CORP$1.1M0.01%HELD
149RSPINVESCO EXCHANGE TRADED FD T$1.0M0.01%HELD
150UNPUNION PAC CORP$1.0M0.01%HELD
151QQQINVESCO QQQ TR$1.0M0.01%HELD
152CMCANADIAN IMPERIAL BANK OF CO$964K0.01%HELD
153VONEVANGUARD SCOTTSDALE FDS$964K0.01%HELD
154KMBKIMBERLY-CLARK CORP$935K0.01%HELD
155BMOBANK MONTREAL MEDIUM$913K0.01%HELD
156IBMINTERNATIONAL BUSINESS MACHS$884K0.01%HELD
157WYWEYERHAEUSER CO$882K0.01%HELD
158VCELVERICEL CORP$832K0.01%HELD
159CBCHUBB LTD SWITZ$795K0.01%HELD
160NSCNORFOLK SOUTHN CORP$779K0.01%HELD
161OKLOOKLO INC$772K0.01%HELD
162IEXIDEX CORP$758K0.01%HELD
163SCHFSCHWAB STRATEGIC TR$757K0.01%HELD
164SHELSHELL PLC$756K0.01%HELD
165GEVGE VERNOVA INC$738K0.01%HELD
166AXGNAXOGEN INC$729K0.01%HELD
167ZBHZIMMER BIOMET HOLDINGS INC$728K0.01%HELD
168VGLTVANGUARD SCOTTSDALE FDS$713K0.01%HELD
169BKBANK NEW YORK MELLON CORP$698K0.01%HELD
170AWKAMERICAN WTR WKS CO INC NEW$684K0.01%HELD
171AMCRAMCOR PLC$681K0.01%HELD
172BILSPDR SERIES TRUST$640K0.01%HELD
173BSXBOSTON SCIENTIFIC CORP$639K0.01%HELD
174INTCINTEL CORP$633K0.01%HELD
175GLDSPDR GOLD TR$615K0.01%HELD
176TMOTHERMO FISHER SCIENTIFIC INC$610K0.01%HELD
177VSATVIASAT INC$595K0.01%HELD
178XLKSELECT SECTOR SPDR TR$594K0.01%HELD
179BRCBRADY CORP$569K0.01%HELD
180IWDISHARES TR$547K0.01%HELD
181NEMNEWMONT CORP$541K0.01%HELD
182TJXTJX COS INC NEW$529K0.01%HELD
183ACWXISHARES TR$517K0.01%HELD
184BABOEING CO$517K0.01%HELD
185MOSMOSAIC CO$510K0.01%HELD
186MDYSTATE STR SPDR S&P MIDCAP 40$505K0.01%HELD
187VTIVANGUARD INDEX FDS$496K0.01%HELD
188VIGVANGUARD SPECIALIZED FUNDS$495K0.01%HELD
189ADBEADOBE INC$488K0.00%HELD
190RGRSTURM RUGER & CO INC$481K0.00%HELD
191TTTRANE TECHNOLOGIES PLC$457K0.00%HELD
192CAHCARDINAL HEALTH INC$448K0.00%HELD
193HBANHUNTINGTON BANCSHARES INC$426K0.00%HELD
194PMPHILIP MORRIS INTL INC$419K0.00%HELD
195NVECNVE CORP$393K0.00%HELD
196AMDADVANCED MICRO DEVICES INC$393K0.00%HELD
197ITWILLINOIS TOOL WKS INC$386K0.00%HELD
198BAXBAXTER INTL INC$379K0.00%HELD
199BBYBEST BUY INC$378K0.00%HELD
200USMVISHARES TR$360K0.00%HELD
201LHXL3HARRIS TECHNOLOGIES INC$357K0.00%HELD
202SKYTSKYWATER TECHNOLOGY INC$356K0.00%HELD
203AMTAMERICAN TOWER CORP$349K0.00%HELD
204PATHUIPATH INC$341K0.00%HELD
205MPCMARATHON PETE CORP$339K0.00%HELD
206DGIIDIGI INTL INC$337K0.00%HELD
207NTRSNORTHERN TR CORP$335K0.00%HELD
208TAT&T INC$328K0.00%HELD
209IBTGISHARES TR$327K0.00%HELD
210EPDENTERPRISE PRODS PARTNERS L$325K0.00%HELD
211DEDEERE & CO$322K0.00%HELD
212GILDGILEAD SCIENCES INC$317K0.00%HELD
213ULTAULTA BEAUTY INC$316K0.00%HELD
214IXNISHARES TR$315K0.00%HELD
215IAUISHARES GOLD TR$311K0.00%HELD
216MOALTRIA GROUP INC$301K0.00%HELD
217VUGVANGUARD INDEX FDS$301K0.00%HELD
218IJRISHARES TR$300K0.00%HELD
219BOHBANK HAWAII CORP$297K0.00%HELD
220WATWATERS CORP$286K0.00%HELD
221CMICUMMINS INC$284K0.00%HELD
222IVWISHARES TR$284K0.00%HELD
223HOGHARLEY DAVIDSON INC$283K0.00%HELD
224SLBSLB LIMITED$283K0.00%HELD
225BPBP PLC$264K0.00%HELD
226MAMASTERCARD INCORPORATED$260K0.00%HELD
227SEICSEI INVTS CO$259K0.00%HELD
228UFCSUNITED FIRE GROUP INC$245K0.00%HELD
229VVVANGUARD INDEX FDS$244K0.00%HELD
230ACNACCENTURE PLC IRELAND$244K0.00%HELD
231IVEISHARES TR$241K0.00%HELD
232MSAMSA SAFETY INC$241K0.00%HELD
233VEUVANGUARD INTL EQUITY INDEX F$239K0.00%HELD
234MUMICRON TECHNOLOGY INC$234K0.00%HELD
235VGTVANGUARD WORLD FD$234K0.00%HELD
236MRSHMARSH & MCLENNAN COS INC$225K0.00%HELD
237DHRDANAHER CORP DEL$215K0.00%HELD
238UTHRUNITED THERAPEUTICS CORP DEL$208K0.00%HELD
239MURMURPHY OIL CORP$206K0.00%HELD
240ADIANALOG DEVICES INC$206K0.00%HELD
241TKRTIMKEN CO$201K0.00%HELD
242CLFCLEVELAND-CLIFFS INC NEW$114K0.00%HELD
243SNAPSNAP INC$104K0.00%HELD
244AEBIAEBI SCHMIDT HLDG AG$101K0.00%HELD
245PLUGPLUG PWR INC$23K0.00%HELD

Source: SEC EDGAR · accession 0001172661-26-001819. 13F discloses long positions only — shorts, foreign equities, and options are excluded.