Arkolith/Funds/MAIRS & POWER INC

MAIRS & POWER INC

CIK: 1070134Q1 2026
Active Filer
Portfolio Value
$9.8B
Positions
265
New Buys
22
20 sold
Changes
62 ↑ / 106 ↓

Top HoldingsQ1 2026

265 total positions
#SecurityValueShares% PortChangeΔ Shares
1NVIDIA CORPORATION
COM
$830.4M4.76M8.5%
REDUCED
-188,297
2MICROSOFT CORP
COM
$719.0M1.94M7.3%
ADDED
+29.5K
3AMAZON COM INC
COM
$542.1M2.60M5.5%
ADDED
+10.1K
4ALPHABET INC
CAP STK CL C
$462.3M1.61M4.7%
REDUCED
-86,359
5GRACO INC
COM
$323.0M3.82M3.3%
REDUCED
-89,898
6JPMORGAN CHASE & CO
COM
$310.1M1.05M3.2%
REDUCED
-222,207
7APPLE INC
COM
$306.7M1.21M3.1%
REDUCED
-9,088
8ELI LILLY & CO
COM
$300.1M326.3K3.1%
REDUCED
-19,039
9VISA INC
COM CL A
$254.2M840.9K2.6%
ADDED
+38.4K
10TORO CO
COM
$254.1M2.72M2.6%
REDUCED
-703,840
11LITTELFUSE INC
COM
$245.9M724.7K2.5%
REDUCED
-54,241
12
NVENT ELEC PLC
SHS
$244.4M2.07M2.5%
REDUCED
-44,791
13MOTOROLA SOLUTIONS INC
COM NEW
$234.7M540.7K2.4%
ADDED
+15.5K
14WEC ENERGY GROUP INC
COM
$221.2M1.91M2.3%
ADDED
+1.9K
15ALLIANT ENERGY CORP
COM
$207.3M2.89M2.1%
REDUCED
-67,887
16ECOLAB INC
COM
$202.7M761.8K2.1%
REDUCED
-8,753
17UNITEDHEALTH GROUP INC
COM
$200.5M741.1K2.0%
REDUCED
-89,452
18META PLATFORMS INC
CL A
$185.7M324.6K1.9%
ADDED
+8.1K
19FASTENAL CO
COM
$182.0M3.92M1.9%
REDUCED
-745,057
20VERIZON COMMUNICATIONS INC
COM
$166.4M3.32M1.7%
REDUCED
-58,236
21TAIWAN SEMICONDUCTOR MANUFAC
SPONSORED ADS
$164.3M486.3K1.7%
REDUCED
-294
22ENTEGRIS INC
COM
$157.5M1.34M1.6%
REDUCED
-5,882
23FULLER H B CO
COM
$145.7M2.36M1.5%
REDUCED
-49,450
24BIO-TECHNE CORP
COM
$143.7M2.75M1.5%
REDUCED
-17,257
25JOHNSON & JOHNSON
COM
$141.2M577.6K1.4%
REDUCED
-226,756
Showing top 25 of 265 positions

Filing History

Q1 2026245 pos
$9.8B
Q4 2025243 pos
$10.4B

Data Source

Holdings data sourced from SEC EDGAR 13F-HR filings. Updated quarterly, approximately 45 days after quarter end. All data is public domain.

Last filed: May 14, 2026