Mairs and Power's ECL Position Overview
Mairs and Power (via Mairs & Power INC) currently holds 770,571 shares of Ecolab Inc. (ECL) worth $202.29 M, representing 1.95% of the portfolio. First purchased in 2013-Q2, this long-term strategic position has been held for 51 quarters.
Based on 13F filings since 2013, Mairs and Power has maintained a long-term strategic position in ECL, representing a significant commitment to this investment thesis. Largest addition occurred in Q2 2014, adding 222,079 shares. Largest reduction occurred in Q2 2018, reducing 294,234 shares.
Analysis based on 13F filings available since 2013 Q2
Mairs and Power's Ecolab (ECL) Holding Value Over Time
Track share changes against reported price movement
Quarterly Ecolab (ECL) Trades by Mairs and Power
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2025 | -6,458 | Reduce 0.83% | 770,571 | $262.52 |
| Q3 2025 | -11,900 | Reduce 1.51% | 777,029 | $273.86 |
| Q2 2025 | +15,743 | Add 2.04% | 788,929 | $269.44 |
| Q1 2025 | -10,123 | Reduce 1.29% | 773,186 | $253.52 |
| Q4 2024 | -11,370 | Reduce 1.43% | 783,309 | $234.32 |
| Q3 2024 | -39,712 | Reduce 4.76% | 794,679 | $255.33 |
| Q2 2024 | -157,173 | Reduce 15.85% | 834,391 | $238.00 |
| Q1 2024 | -234,966 | Reduce 19.16% | 991,564 | $230.90 |
| Q4 2023 | -175,311 | Reduce 12.51% | 1.23 M | $198.35 |
| Q3 2023 | -106,093 | Reduce 7.04% | 1.4 M | $169.40 |
| Q2 2023 | -185,285 | Reduce 10.94% | 1.51 M | $186.69 |
| Q1 2023 | -85,055 | Reduce 4.78% | 1.69 M | $165.53 |
| Q4 2022 | -5,394 | Reduce 0.30% | 1.78 M | $145.56 |
| Q3 2022 | -16,882 | Reduce 0.94% | 1.78 M | $144.42 |
| Q2 2022 | -6,505 | Reduce 0.36% | 1.8 M | $153.76 |
| Q1 2022 | -6,405 | Reduce 0.35% | 1.81 M | $176.56 |
| Q4 2021 | -14,388 | Reduce 0.79% | 1.81 M | $234.59 |
| Q3 2021 | +26,691 | Add 1.48% | 1.83 M | $208.62 |
| Q2 2021 | +118,292 | Add 7.03% | 1.8 M | $205.97 |
| Q1 2021 | +94,843 | Add 5.97% | 1.68 M | $214.07 |
| Q4 2020 | -7,476 | Reduce 0.47% | 1.59 M | $216.36 |
| Q3 2020 | -62,559 | Reduce 3.77% | 1.6 M | $199.84 |
| Q2 2020 | -74,786 | Reduce 4.32% | 1.66 M | $198.95 |
| Q1 2020 | -11,630 | Reduce 0.67% | 1.73 M | $155.83 |
| Q4 2019 | -11,559 | Reduce 0.66% | 1.74 M | $192.99 |
| Q3 2019 | -75,299 | Reduce 4.11% | 1.76 M | $198.04 |
| Q2 2019 | -194,624 | Reduce 9.61% | 1.83 M | $197.44 |
| Q1 2019 | -192,917 | Reduce 8.69% | 2.03 M | $176.54 |
| Q4 2018 | -202,096 | Reduce 8.35% | 2.22 M | $147.35 |
| Q3 2018 | -10,836 | Reduce 0.45% | 2.42 M | $156.78 |
| Q2 2018 | -294,234 | Reduce 10.79% | 2.43 M | $140.33 |
| Q1 2018 | -55,485 | Reduce 1.99% | 2.73 M | $137.07 |
| Q4 2017 | -2,722 | Reduce 0.10% | 2.78 M | $134.18 |
| Q3 2017 | +25,735 | Add 0.93% | 2.78 M | $128.61 |
| Q2 2017 | +30,055 | Add 1.10% | 2.76 M | $132.75 |
| Q1 2017 | +165,725 | Add 6.47% | 2.73 M | $125.34 |
| Q4 2016 | +60,752 | Add 2.43% | 2.56 M | $117.22 |
| Q3 2016 | -2,165 | Reduce 0.09% | 2.5 M | $121.72 |
| Q2 2016 | +27,029 | Add 1.09% | 2.5 M | $118.60 |
| Q1 2016 | +63,576 | Add 2.63% | 2.48 M | $111.52 |
| Q4 2015 | -23,111 | Reduce 0.95% | 2.41 M | $114.38 |
| Q3 2015 | -43,814 | Reduce 1.77% | 2.44 M | $109.72 |
| Q2 2015 | -360 | Reduce 0.01% | 2.48 M | $113.07 |
| Q1 2015 | +49,366 | Add 2.03% | 2.48 M | $114.38 |
| Q4 2014 | +178,083 | Add 7.90% | 2.43 M | $104.52 |
| Q3 2014 | +8,361 | Add 0.37% | 2.25 M | $114.83 |
| Q2 2014 | +222,079 | Add 10.98% | 2.25 M | $111.34 |
| Q1 2014 | +4,223 | Add 0.21% | 2.02 M | $107.99 |
| Q4 2013 | -4,478 | Reduce 0.22% | 2.02 M | $104.27 |
| Q3 2013 | -15,656 | Reduce 0.77% | 2.02 M | $98.76 |
| Q2 2013 | +2.04 M | Add 0.00% | 2.04 M | $85.19 |
Mairs and Power's Ecolab Investment FAQs
Mairs and Power first purchased Ecolab Inc. (ECL) in Q2 2013, acquiring 2,038,845 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Mairs and Power has held Ecolab Inc. (ECL) for 51 quarters since Q2 2013.
Mairs and Power's largest addition to Ecolab Inc. (ECL) was in Q2 2013, adding 2,038,845 shares worth $173.69 M.
According to the latest 13F filing for Q4 2025, Mairs and Power's firm, Mairs & Power INC, owns 770,571 shares of Ecolab Inc. (ECL), valued at approximately $202.29 M.
As of the Q4 2025 filing, Ecolab Inc. (ECL) represents approximately 1.95% of Mairs and Power's publicly disclosed stock portfolio, making it one of their key holdings.
Mairs and Power's peak holding in Ecolab Inc. (ECL) was 2,784,245 shares, as reported at the end of Q3 2017.