MAIRS & POWER INC

CIK 1070134 · View on SEC EDGAR ↗

Portfolio value
$10.9B
#451 of 9,443 by 13F value · top 4.8%
Positions
254
As of
June 30, 2026

Portfolio value QoQ: +11.4% 13F does not disclose cash

Top 10 holdings weight
44.31%
Top 25 holdings weight
73.20%
Positions above 1%
30
Effective number of positions
32.4

Based on 13F long-equity holdings only (cash, bonds, shorts not disclosed)

Turnover Q2 2026: 3.65% Est. buys $377,224,633 · sells $592,590,091

Median holding: 7.0 quarters Tracked Q4 2024–Q2 2026 · 79.4% still held

New positions
17
Increased
56
Decreased
109
Closed
8
On this page

Performance vs S&P 500

Tracked Q4 2024–Q2 2026
+21.0%
S&P 500 total return (same window)
+28.1%
Excess return
-7.1%

Annualized: +13.6% · S&P 500: +18.0%

Approximates a buy-and-hold portfolio built from quarterly SEC 13F snapshots. Excludes cash, short positions, options/derivatives, and non-13(f) securities — reflects the disclosed long-equity book only, not total fund AUM. SEC filing lag is up to 45 days; this is not a real-time-copyable timing.

Priceable coverage: 99.5% · Options excluded: 0.0%

Sector breakdown

Technology
26.3%
Industrials
19.1%
Healthcare
11.0%
Retail
7.5%
Communication Services
7.5%
Financial Services
5.7%
Financials
5.5%
Materials
4.7%
Utilities
4.6%
Communications
2.3%
Logistics & Transportation
1.4%
Telecommunication
1.3%
Consumer Staples
1.0%
Consumer products
0.3%
Energy
0.2%
Consumer Discretionary
0.2%
Packaging
0.0%
Real Estate
0.0%
Other/Unmapped
1.3%

Full portfolio 254 positions

Type Streak 8Q trend
NVDA NVIDIA Corporation - Common Stock $941,982,058 8.64% 4,707,792 $111,602,394 Down ×4
MSFT Microsoft Corporation - Common Stock $727,663,988 6.68% 1,950,737 $8,649,066 Up ×3
AMZN Amazon.com, Inc. - Common Stock $619,550,768 5.68% 2,599,441 $77,442,286 Down ×1
GOOG Alphabet Inc. - Class C Capital Stock $594,809,371 5.46% 1,683,439 $132,502,808 Up ×1
LLY Eli Lilly and Company Common Stock $386,371,186 3.54% 322,129 $86,244,716 Down ×4
NVT nVent Electric plc Ordinary Shares $348,177,553 3.19% 2,052,813 $103,761,319 Down ×4
AAPL Apple Inc. - Common Stock $329,421,363 3.02% 1,138,448 $22,742,015 Down ×2
JPM JP Morgan Chase & Co. Common Stock $302,305,621 2.77% 923,550 $-7,796,969 Down ×6
V Visa Inc. $292,329,895 2.68% 852,050 $38,170,861 Up ×3
GGG Graco Inc. Common Stock $287,125,237 2.63% 3,797,451 $-35,872,482 Down ×4
LFUS Littelfuse, Inc. - Common Stock $274,156,014 2.52% 602,104 $28,225,675 Down ×5
TTC Toro Company (The) Common Stock $260,742,088 2.39% 2,676,474 $6,680,276 Down ×5
ENTG Entegris, Inc. - Common Stock $234,112,970 2.15% 1,301,640 $76,647,457 Down ×2
UNH UnitedHealth Group Incorporated Common Stock (DE) $232,732,484 2.14% 559,951 $32,202,803 Down ×3
TSM Taiwan Semiconductor Manufacturing Company Ltd. $227,440,325 2.09% 476,245 $63,110,786 Down ×3
MSI Motorola Solutions, Inc. Common Stock $226,281,554 2.08% 544,876 $-8,379,912 Up ×3
ECL Ecolab Inc. Common Stock $216,630,797 1.99% 777,541 $13,972,050 Up ×1
WEC WEC Energy Group, Inc. Common Stock $208,773,667 1.92% 1,787,905 $-12,426,335 Down ×1
PANW Palo Alto Networks, Inc. - Common Stock $204,557,778 1.88% 599,841 $119,158,681 Up ×6
LNT Alliant Energy Corporation - Common Stock $202,772,183 1.86% 2,657,913 $-4,546,763 Down ×6
TECH Bio-Techne Corp - Common Stock $190,804,299 1.75% 2,700,698 $47,074,572 Down ×3
META Meta Platforms, Inc. - Class A Common Stock $187,502,906 1.72% 332,871 $1,775,205 Up ×5
FAST Fastenal Company - Common Stock $185,918,876 1.71% 3,870,891 $3,917,539 Down ×4
SHW Sherwin-Williams Company (The) Common Stock $151,702,686 1.39% 440,586 $11,378,663 Up ×1
CHRW C.H. Robinson Worldwide, Inc. - Common Stock $145,155,131 1.33% 770,708 $4,293,905 Down ×3
FUL H. B. Fuller Company Common Stock $141,945,943 1.30% 2,435,168 $-3,718,594 Up ×1
VZ Verizon Communications Inc. Common Stock $139,376,929 1.28% 3,291,850 $-27,057,958 Down ×3
WM Waste Management, Inc. Common Stock $131,727,652 1.21% 591,025 $40,216,082 Up ×2
ROK Rockwell Automation, Inc. Common Stock $127,637,070 1.17% 257,811 $25,875,569 Down ×6
FISV Fiserv, Inc. - Common Stock $112,473,072 1.03% 2,293,029 $-7,656,125 Up ×2
JNJ Johnson & Johnson Common Stock $107,431,831 0.99% 423,010 $-33,754,496 Down ×4
AMP Ameriprise Financial, Inc. Common Stock $98,200,331 0.90% 214,056 $10,632,644 Up ×5
CGNX Cognex Corporation - Common Stock $94,714,932 0.87% 1,307,856 $34,757,296 Up ×5
HRL Hormel Foods Corporation Common Stock $84,339,527 0.77% 3,398,047 $6,922,756 Down ×5
CASY Caseys General Stores, Inc. - Common Stock $72,425,239 0.66% 91,125 $2,596,534 Down ×6
WFC Wells Fargo & Company Common Stock $72,077,458 0.66% 872,186 $-36,659,937 Down ×6
AJG Arthur J. Gallagher & Co. Common Stock $71,520,008 0.66% 311,539
ABT Abbott Laboratories Common Stock $66,182,014 0.61% 729,358 $-7,923,011 Up ×2
TXN Texas Instruments Incorporated - Common Stock $64,816,216 0.59% 217,453 $19,940,561 Down ×3
TNC Tennant Company Common Stock $59,684,772 0.55% 681,800 $6,334,762 Down ×5
ISRG Intuitive Surgical, Inc. - Common Stock $58,243,815 0.53% 146,459 $12,197,829 Up ×2
MMM 3M Company Common Stock $56,563,197 0.52% 349,350 $5,464,368 Down ×1
HD Home Depot, Inc. (The) Common Stock $53,766,917 0.49% 152,452 $3,315,795 Down ×2
TRV The Travelers Companies, Inc. Common Stock $51,657,838 0.47% 156,482 $10,118,522 Up ×5
AXP American Express Company Common Stock $49,253,116 0.45% 145,612 $4,237,589 Down ×6
IDA IDACORP, Inc. Common Stock $46,898,461 0.43% 309,970 $3,810,591 Up ×1
MEDP Medpace Holdings, Inc. - Common Stock $45,923,397 0.42% 86,715 $4,761,510 Up ×2
CME CME Group Inc. - Class A Common Stock $43,191,036 0.40% 195,585 Up ×1
DCI Donaldson Company, Inc. Common Stock $41,627,862 0.38% 463,717 $-754,082 Down ×6
WK Workiva Inc. Class A Common Stock $40,238,608 0.37% 829,491 $-2,435,005 Up ×1
Unknown issuer (CUSIP: 724078209) $39,389,492 0.36% 544,505 $-2,413,698 Down ×1
SFM Sprouts Farmers Market, Inc. - Common Stock $38,215,443 0.35% 451,826 $15,679,831 Up ×1
PG Procter & Gamble Company (The) Common Stock $35,988,777 0.33% 245,423 $830,688 Up ×4
USB U.S. Bancorp Common Stock $33,911,778 0.31% 561,453 $2,626,812 Down ×6
ZTS Zoetis Inc. Class A Common Stock $33,595,628 0.31% 467,515 $-2,235,714 Up ×3
QCOM QUALCOMM Incorporated - Common Stock $33,231,155 0.30% 179,832 $-28,332,897 Down ×6
XEL Xcel Energy Inc. - Common Stock $31,517,547 0.29% 392,497 $-438,263 Down ×1
BSY Bentley Systems, Incorporated - Class B Common Stock $28,996,707 0.27% 970,114 $20,702,838 Up ×2
ADP Automatic Data Processing, Inc. - Common Stock $28,480,393 0.26% 127,173 $3,197,487 Up ×4
MDT Medtronic plc. Ordinary Shares $28,424,782 0.26% 363,349 $-6,405,820 Down ×6
GNRC Generac Holdlings Inc. Common Stock $27,346,990 0.25% 93,395 $7,863,408 Down ×6
Unknown issuer (CUSIP: 43849R105) $22,116,954 0.20% 100,041 Up ×1
GLW Corning Incorporated Common Stock $21,825,727 0.20% 85,447 $9,826,374 Down ×4
TGT Target Corporation Common Stock $20,801,059 0.19% 159,261 $332,880 Down ×6
SCHW Charles Schwab Corporation (The) Common Stock $19,956,894 0.18% 216,288 $-3,324,959 Down ×6
GOOGL Alphabet Inc. - Class A Common Stock $19,343,723 0.18% 54,128 $3,307,652 Down ×1
CAT Caterpillar, Inc. Common Stock $19,276,820 0.18% 18,102 $6,205,733 Down ×4
DIS Walt Disney Company (The) Common Stock $16,711,502 0.15% 173,626 $-6,404,855 Down ×3
CLFD Clearfield, Inc. - Common Stock $15,329,376 0.14% 385,257 $-4,039,597 Down ×1
BMI Badger Meter, Inc. Common Stock $14,758,539 0.14% 99,464 $-1,210,099 Down ×1
PFG Principal Financial Group Inc - Common Stock $14,580,787 0.13% 135,283 $-186,878 Down ×6
AIR AAR Corp. Common Stock $11,996,544 0.11% 83,933 $2,211,805 Down ×6
PLXS Plexus Corp. - Common Stock $11,809,115 0.11% 39,276 $2,519,010 Down ×1
BRKB $11,804,200 0.11% 23,590 $337,423 Down ×4
ABBV AbbVie Inc. Common Stock $11,248,811 0.10% 44,702 $1,392,817 Down ×3
XOM Exxon Mobil Corporation Common Stock $11,183,969 0.10% 81,802 $-2,986,543 Down ×2
AMBA Ambarella, Inc. - Ordinary Shares $10,841,087 0.10% 126,353 $4,788,605 Up ×1
KNF Knife Riv Holding Co. Common Stock $10,738,736 0.10% 128,377 $-237,310 Down ×1
HSY The Hershey Company Common Stock $10,710,170 0.10% 61,044 $-2,711,208 Down ×3
MINN $10,540,610 0.10% 470,668 $1,450,181 Up ×4
ONB Old National Bancorp - Common Stock $10,082,637 0.09% 389,291 $509,116 Down ×6
JBTM JBT Marel Corporation Common Stock $9,782,425 0.09% 67,465 $2,225,308 Up ×1
WTFC Wintrust Financial Corporation - Common Stock $9,427,674 0.09% 58,659 $1,404,723 Up ×2
EMR Emerson Electric Company Common Stock $9,052,090 0.08% 63,235 $568,283 Down ×4
QCRH QCR Holdings, Inc. - Common Stock $8,859,045 0.08% 91,002 $1,082,924
PATK Patrick Industries, Inc. - Common Stock $8,513,299 0.08% 94,824 $2,083,012 Up ×3
ASB Associated Banc-Corp Common Stock $8,309,131 0.08% 270,040 $1,325,897
VOO $8,307,968 0.08% 12,096 $-575,484 Down ×1
RDNT RadNet, Inc. - Common Stock $8,209,264 0.08% 133,116 $769,411
IVV $7,978,453 0.07% 10,654 $3,757,603 Up ×1
AMAT Applied Materials, Inc. - Common Stock $7,958,061 0.07% 11,007 $4,086,606 Down ×1
SCHB $7,565,684 0.07% 261,246 $1,008,409
BKH Black Hills Corporation Common Stock $7,312,404 0.07% 98,285 $490,442
LTH Life Time Group Holdings, Inc. Common Stock $7,037,426 0.06% 172,317 $2,395,206
CVX Chevron Corporation Common Stock $6,820,527 0.06% 41,147 $-1,252,090 Up ×2
MRK Merck & Company, Inc. Common Stock (new) $6,620,192 0.06% 51,519 $563,831 Up ×1
CFR Cullen/Frost Bankers, Inc. Common Stock $6,597,386 0.06% 42,696 $744,618
ALRS Alerus Financial Corporation - Common Stock $6,326,269 0.06% 203,417 $4,442,841 Up ×1
JHX James Hardie Industries plc. Ordinary Shares $6,301,945 0.06% 240,716 $1,741,932 Down ×1
SPY SPY $6,182,673 0.06% 8,279 $-11,493,711 Down ×1

Conviction holdings

Positions increased for 3+ consecutive quarters.

Share counts are as reported in 13F filings (not split-adjusted)

Security Value % of portfolio Streak
MSFT $727,663,988 6.68% up ×3
V $292,329,895 2.68% up ×3
MSI $226,281,554 2.08% up ×3
PANW $204,557,778 1.88% up ×6
META $187,502,906 1.72% up ×5
AMP $98,200,331 0.90% up ×5
CGNX $94,714,932 0.87% up ×5
TRV $51,657,838 0.47% up ×5
PG $35,988,777 0.33% up ×4
ZTS $33,595,628 0.31% up ×3
ADP $28,480,393 0.26% up ×4
MINN $10,540,610 0.10% up ×4
PATK $8,513,299 0.08% up ×3
CTAS $4,636,721 0.04% up ×6
VO $3,170,268 0.03% up ×3

Biggest new bets

New positions opened this quarter, largest first.

Security Value Shares % of portfolio
AJG $71,520,008 311,539 0.66%
CME $43,191,036 195,585 0.40%
Unknown issuer (CUSIP: 43849R105) $22,116,954 100,041 0.20%
MGEE $1,346,062 16,508 0.01%
IWP $1,033,715 7,058 0.01%
IJH $829,395 10,756 0.01%
IWR $717,742 6,506 0.01%
IWM $452,778 1,507 0.00%
IWO $409,718 1,040 0.00%
IWS $348,079 2,112 0.00%
LRCX $331,497 765 0.00%
VRT $261,160 780 0.00%
MS $216,565 1,036 0.00%
RF $211,400 7,000 0.00%
ECG $207,438 1,250 0.00%

Top movers (QoQ)

Security Action Shares Δ Value Δ
GOOG Bought more +72K +$132.5M
PANW Bought more +67K +$119.2M
NVDA Trimmed -54K +$111.6M
NVT Trimmed -14K +$103.8M
LLY Trimmed -4K +$86.2M
AMZN Trimmed -3K +$77.4M
ENTG Trimmed -41K +$76.6M
TSM Trimmed -10K +$63.1M
TECH Trimmed -50K +$47.1M
WM Bought more +193K +$40.2M

Exited positions

Includes corporate events (mergers, delistings) — not all exits are sells

Closed positions reflect 13F reporting changes; for index managers these are often mechanical (delisting, M&A, index rebalancing), not active decisions.

SecurityQuarter Shares before Value before Price since exit
PIPR March 31, 2026 175,861 $59,741,740 -2.7%
HON June 30, 2026 208,448 $47,115,501 -1.9%
INSP March 31, 2026 57,616 $5,313,924 17.7%
MGPI March 31, 2026 173,245 $4,209,854 -4.2%
NEOG June 30, 2025 455,289 $3,947,355 148.3%
JAMF Dec. 31, 2025 298,112 $3,189,798 No longer tracked
CWAN March 31, 2026 92,510 $2,231,341 No longer tracked
THRM March 31, 2026 52,946 $1,925,646 50.6%
EXAS March 31, 2026 17,236 $1,750,488 No longer tracked
XLI March 31, 2026 10,535 $1,634,189 No longer tracked
XLP March 31, 2026 20,045 $1,557,096 No longer tracked
XLF March 31, 2026 25,310 $1,386,229 No longer tracked
AZEK Sept. 30, 2025 23,927 $1,300,432 No longer tracked
CVRX March 31, 2026 142,456 $1,011,438 -69.1%
XLV March 31, 2026 5,522 $854,806 No longer tracked
DD June 30, 2025 10,081 $752,849 388.3%
VTI June 30, 2025 2,585 $710,461 No longer tracked
MDY Dec. 31, 2025 1,064 $634,250 No longer tracked
MDY March 31, 2025 1,035 $589,515 No longer tracked
CTVA June 30, 2025 8,949 $563,161 7.6%
ALTR March 31, 2025 4,431 $483,466 No longer tracked
RSG March 31, 2025 2,100 $422,478 -9.2%
TSLA March 31, 2025 992 $400,609 34.6%
DOW June 30, 2025 10,801 $377,171 24.0%
AVY March 31, 2025 2,000 $374,260 2.6%
BP June 30, 2025 10,540 $356,147 51.1%
APD March 31, 2025 1,175 $340,797 3.0%
PATH June 30, 2026 30,700 $340,770 44.7%
TTD March 31, 2025 2,782 $326,968 -75.8%
IBTG June 30, 2026 14,255 $326,653 0.0%
IBTF Dec. 31, 2025 11,000 $324,377 No longer tracked
ULTA June 30, 2026 605 $316,240 15.0%
VONE Dec. 31, 2025 1,031 $310,114
BR March 31, 2025 1,350 $305,222 -26.1%
PDCO June 30, 2025 9,150 $285,846 No longer tracked
DFAE Sept. 30, 2025 9,850 $285,158 No longer tracked
MDLZ Dec. 31, 2025 4,524 $282,614 19.1%
DVY Sept. 30, 2025 2,105 $279,570
SEIC June 30, 2026 3,300 $258,951 24.3%
LMT March 31, 2025 503 $244,428 27.3%
CL March 31, 2025 2,686 $244,184 -3.7%
ACN June 30, 2026 1,229 $243,698 46.7%
CARR Dec. 31, 2025 4,043 $241,367 15.3%
MGNI Sept. 30, 2025 10,000 $241,200 6.6%
CMCSA Dec. 31, 2025 7,600 $238,792 -5.5%
XLB March 31, 2026 5,260 $238,541 No longer tracked
ADSK March 31, 2026 801 $237,104 3.2%
AJG Dec. 31, 2025 760 $235,402 0.5%
SRDX June 30, 2025 7,626 $232,822 No longer tracked
SLB June 30, 2025 5,500 $229,900 59.2%
ROST March 31, 2025 1,513 $228,872 86.5%
SBUX Dec. 31, 2025 2,671 $226,005 23.1%
EEM Dec. 31, 2025 14,255 $222,785 No longer tracked
IWF Dec. 31, 2025 4,172 $222,495 No longer tracked
GPC Dec. 31, 2025 1,603 $222,176 9.0%
CMG March 31, 2025 3,660 $220,698 -28.5%
ALE Dec. 31, 2025 3,288 $218,323 No longer tracked
NVS Sept. 30, 2025 1,795 $217,213 22.5%
HPQ March 31, 2025 6,593 $215,130 7.0%
VTEB March 31, 2026 4,211 $211,771 No longer tracked
HOG March 31, 2025 7,000 $210,910 11.9%
OTIS Sept. 30, 2025 2,128 $210,715 -21.3%
UTHR June 30, 2026 350 $207,543 -2.9%
RF March 31, 2026 7,620 $206,502 16.8%
ETN March 31, 2026 648 $206,394 17.7%
MUR June 30, 2026 5,000 $206,250 17.2%
CMG Sept. 30, 2025 3,660 $205,509 -8.4%
NVS March 31, 2026 1,485 $204,737 2.8%
LIN Dec. 31, 2025 429 $203,775 14.4%
BLK March 31, 2026 190 $203,365 20.3%
CMCSA March 31, 2025 5,392 $202,362 -28.3%
CL Sept. 30, 2025 2,224 $202,162 12.9%
SONY March 31, 2026 7,830 $200,448 15.0%
TCMD Sept. 30, 2025 12,500 $126,750 67.9%
SHYF Sept. 30, 2025 10,000 $125,400 No longer tracked
NEO Sept. 30, 2025 15,000 $109,650 110.2%
ORBS Dec. 31, 2025 10,900 $99,735 -50.4%
HIMX Dec. 31, 2025 10,550 $93,157 67.8%
ALTM March 31, 2025 13,925 $71,435 No longer tracked