William Frels - Mairs & Power
Holding/activity history for Ecolab Inc. (ECL)
← All ECL superinvestors
| Period | Shares | % of Portfolio | Activity | % Change to Portfolio | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026 Q1 | 761,818 | 2.07 | Reduce 1.14% | 0.02 | $252.66–309.27 · VW $274.18i | $202,658,747 | SEC |
| 2025 Q4 | 770,571 | 1.95 | Reduce 0.83% | 0.02 | $251.74–285.00 · VW $272.91i | $202,290,331 | SEC |
| 2025 Q3 | 777,029 | 2.00 | Reduce 1.51% | 0.03 | $255.16–286.04 · VW $265.87i | $212,797,080 | SEC |
| 2025 Q2 | 788,929 | 2.10 | Add 2.04% | 0.04 | $248.58–274.17 · VW $261.50i | $212,569,094 | SEC |
| 2025 Q1 | 773,186 | 2.04 | Reduce 1.29% | 0.02 | $221.62–273.69 · VW $248.91i | $196,018,013 | SEC |
| 2024 Q4 | 783,309 | 1.78 | Reduce 1.43% | 0.03 | $227.63–253.87 · VW $243.90i | $183,544,902 | SEC |
| 2024 Q3 | 794,679 | 1.91 | Reduce 4.76% | 0.09 | $230.77–262.61 · VW $246.37i | $202,905,450 | SEC |
| 2024 Q2 | 834,391 | 1.92 | Reduce 15.85% | 0.35 | $220.96–249.00 · VW $233.55i | $198,584,909 | SEC |
| 2024 Q1 | 991,564 | 2.22 | Reduce 19.16% | 0.49 | $195.49–231.86 · VW $217.83i | $228,952,179 | SEC |
| 2023 Q4 | 1,226,530 | 2.56 | Reduce 12.51% | 0.35 | $165.39–202.48 · VW $188.70i | $243,282,192 | SEC |
| 2023 Q3 | 1,401,841 | 2.79 | Reduce 7.04% | 0.22 | $156.72–189.32 · VW $171.26i | $237,471,896 | SEC |
| 2023 Q2 | 1,507,934 | 3.06 | Reduce 10.94% | 0.35 | $164.01–191.41 · VW $179.52i | $281,516,172 | SEC |
| 2023 Q1 | 1,693,219 | 3.23 | Reduce 4.78% | 0.15 | $143.91–168.26 · VW $160.00i | $280,278,574 | SEC |
| 2022 Q4 | 1,778,274 | 3.12 | Reduce 0.30% | <0.01 | $131.04–157.18 · VW $147.68i | $258,845,616 | SEC |
| 2022 Q3 | 1,783,668 | 3.25 | Reduce 0.94% | 0.03 | $136.94–178.06 · VW $157.36i | $257,597,000 | SEC |
| 2022 Q2 | 1,800,550 | 3.32 | Reduce 0.36% | 0.01 | $143.82–174.62 · VW $161.20i | $276,853,000 | SEC |
| 2022 Q1 | 1,807,055 | 3.21 | Reduce 0.35% | 0.01 | $154.85–193.42 · VW $172.54i | $319,054,000 | SEC |
| 2021 Q4 | 1,813,460 | 3.94 | Reduce 0.79% | 0.03 | $180.37–238.93 · VW $202.92i | $425,420,000 | SEC |
| 2021 Q3 | 1,827,848 | 3.82 | Add 1.48% | 0.06 | $208.57–231.25 · VW $220.68i | $381,326,000 | SEC |
| 2021 Q2 | 1,801,157 | 3.67 | Add 7.03% | 0.24 | $204.28–230.00 · VW $218.37i | $370,984,000 | SEC |
| 2021 Q1 | 1,682,865 | 3.78 | Add 5.97% | 0.21 | $201.15–229.05 · VW $218.11i | $360,251,000 | SEC |
| 2020 Q4 | 1,588,022 | 3.82 | Reduce 0.47% | 0.02 | $186.59–227.97 · VW $206.36i | $343,584,000 | SEC |
| 2020 Q3 | 1,595,498 | 3.98 | Reduce 3.77% | 0.16 | $181.25–209.67 · VW $191.50i | $318,844,000 | SEC |
| 2020 Q2 | 1,658,057 | 4.31 | Reduce 4.32% | 0.17 | $183.28–231.36 · VW $200.57i | $329,870,000 | SEC |
| 2020 Q1 | 1,732,843 | 3.94 | Reduce 0.67% | 0.03 | $124.60–211.24 · VW $176.45i | $270,029,000 | SEC |
| 2019 Q4 | 1,744,473 | 3.82 | Reduce 0.66% | 0.03 | $181.43–199.68 · VW $192.41i | $336,666,000 | SEC |
| 2019 Q3 | 1,756,032 | 4.20 | Reduce 4.11% | 0.18 | $185.06–209.87 · VW $195.67i | $347,765,000 | SEC |
| 2019 Q2 | 1,831,331 | 4.34 | Reduce 9.61% | 0.42 | $177.48–209.24 · VW $196.15i | $361,578,000 | SEC |
| 2019 Q1 | 2,025,955 | 4.34 | Reduce 8.69% | 0.38 | $157.11–186.34 · VW $175.84i | $357,662,000 | SEC |
| 2018 Q4 | 2,218,872 | 4.41 | Reduce 8.35% | 0.37 | $135.77–162.91 · VW $152.28i | $326,951,000 | SEC |
| 2018 Q3 | 2,420,968 | 4.42 | Reduce 0.45% | 0.02 | $137.70–159.92 · VW $150.26i | $379,559,000 | SEC |
| 2018 Q2 | 2,431,804 | 4.23 | Reduce 10.79% | 0.50 | $136.00–148.64 · VW $141.78i | $341,255,000 | SEC |
| 2018 Q1 | 2,726,038 | 4.61 | Reduce 1.99% | 0.09 | $125.74–150.46 · VW $140.32i | $373,658,000 | SEC |
| 2017 Q4 | 2,781,523 | 4.33 | Reduce 0.10% | <0.01 | $129.16–140.50 · VW $135.78i | $373,225,000 | SEC |
| 2017 Q3 | 2,784,245 | 4.30 | Add 0.93% | 0.04 | $127.18–134.87 · VW $130.90i | $358,082,000 | SEC |
| 2017 Q2 | 2,758,510 | 4.43 | Add 1.10% | 0.05 | $125.05–134.89 · VW $130.54i | $366,192,000 | SEC |
| 2017 Q1 | 2,728,455 | 4.19 | Add 6.47% | 0.25 | $119.09–129.49 · VW $125.89i | $341,985,000 | SEC |
| 2016 Q4 | 2,562,730 | 3.86 | Add 2.43% | 0.09 | $110.65–122.64 · VW $117.81i | $300,403,000 | SEC |
| 2016 Q3 | 2,501,978 | 4.01 | Reduce 0.09% | <0.01 | $114.00–124.60 · VW $117.59i | $304,541,000 | SEC |
| 2016 Q2 | 2,504,143 | 4.01 | Add 1.09% | 0.04 | $112.30–121.81 · VW $117.50i | $296,991,000 | SEC |
| 2016 Q1 | 2,477,114 | 3.93 | Add 2.63% | 0.10 | $98.62–116.90 · VW $110.17i | $276,248,000 | SEC |
| 2015 Q4 | 2,413,538 | 4.14 | Reduce 0.95% | 0.04 | $99.99–122.48 · VW $110.11i | $276,061,000 | SEC |
| 2015 Q3 | 2,436,649 | 4.18 | Reduce 1.77% | 0.07 | $103.09–122.30 · VW $115.25i | $267,349,000 | SEC |
| 2015 Q2 | 2,480,463 | 3.97 | Reduce 0.01% | <0.01 | $107.72–118.27 · VW $113.93i | $280,466,000 | SEC |
| 2015 Q1 | 2,480,823 | 3.90 | Add 2.03% | 0.08 | $101.57–117.31 · VW $110.29i | $283,757,000 | SEC |
| 2014 Q4 | 2,431,457 | 3.53 | Add 7.90% | 0.26 | $97.78–115.19 · VW $105.58i | $254,136,000 | SEC |
| 2014 Q3 | 2,253,374 | 3.78 | Add 0.37% | 0.01 | $103.40–118.46 · VW $111.03i | $258,755,000 | SEC |
| 2014 Q2 | 2,245,013 | 3.60 | Add 10.98% | 0.36 | $103.91–112.27 · VW $108.24i | $249,960,000 | SEC |
| 2014 Q1 | 2,022,934 | 3.38 | Add 0.21% | <0.01 | $97.65–111.83 · VW $104.71i | $218,457,000 | SEC |
| 2013 Q4 | 2,018,711 | 3.40 | Reduce 0.22% | <0.01 | $97.94–108.14 · VW $102.21i | $210,491,000 | SEC |
| 2013 Q3 | 2,023,189 | 3.62 | Reduce 0.77% | 0.03 | $90.18–108.34 · VW $101.51i | $199,810,000 | SEC |
| 2013 Q2 | 2,038,845 | 3.48 | Reduce 0.76% | 0.01 | $82.58–95.19 · VW $89.97i | $173,689,000 | SEC |
| 2013 Q1 | 2,054,405 | 1.68 | Add 0.03% | <0.01 | $72.03–84.70 · VW $80.45i | $164,722,000 | SEC |
| 2012 Q4 | 2,053,801 | 3.68 | Reduce 1.22% | 0.04 | $67.97–74.74 · VW $71.70i | $147,668,000 | SEC |
| 2012 Q3 | 2,079,138 | 3.32 | Add 0.16% | <0.01 | $62.98–70.75 · VW $67.78i | $134,749,000 | SEC |
| 2012 Q2 | 2,075,880 | 3.71 | Reduce 0.31% | 0.01 | $61.45–68.96 · VW $65.29i | $142,260,000 | SEC |
| 2012 Q1 | 2,082,303 | 3.30 | Reduce 4.38% | 0.16 | $58.75–64.14 · VW $62.19i | $128,520,000 | SEC |
| 2011 Q4 | 2,177,774 | 3.63 | Reduce 10.56% | 0.40 | $52.21–61.42 · VW $58.02i | $125,897,000 | SEC |
| 2011 Q3 | 2,434,837 | 3.83 | Reduce 1.14% | 0.02 | $43.81–55.60 · VW $51.08i | $119,039,000 | SEC |
| 2011 Q2 | 2,463,028 | 1.88 | Reduce 3.60% | 0.13 | $49.49–57.19 · VW $52.23i | $138,866,000 | SEC |
| 2011 Q1 | 2,555,133 | 3.57 | Add 1.55% | 0.05 | $46.80–53.00 · VW $50.85i | $130,363,000 | SEC |
| 2010 Q4 | 2,516,242 | 3.66 | Reduce 0.03% | <0.01 | $46.64–50.90 · VW $49.08i | $126,869,000 | SEC |
| 2010 Q3 | 2,517,032 | 2.02 | Reduce 4.94% | 0.20 | $46.07–52.46 · VW $49.28i | $127,714,204,000 | SEC |
| 2010 Q2 | 2,647,766 | 4.08 | Add 1.70% | 0.07 | $44.52–49.77 · VW $47.73i | $118,911,171,000 | SEC |
| 2010 Q1 | 2,603,535 | 1.73 | Add 1.30% | 0.02 | $40.66–49.16 · VW $46.22i | $114,425,363,000 | SEC |
| 2009 Q4 | 2,570,050 | 1.82 | Reduce 0.22% | <0.01 | $43.39–47.40 · VW $44.90i | $114,572,829,000 | SEC |
| 2009 Q3 | 2,575,799 | 1.96 | Add 1.78% | 0.03 | $41.09–47.88 · VW $44.31i | $119,079,181,000 | SEC |
| 2009 Q2 | 2,530,821 | 1.88 | Reduce 0.51% | 0.01 | $36.01–41.84 · VW $39.79i | $98,676,705,000 | SEC |
| 2009 Q1 | 2,543,881 | 1.99 | Add 0.40% | <0.01 | $29.27–39.55 · VW $35.79i | $88,348,982,000 | SEC |
| 2008 Q4 | 2,533,831 | 1.70 | Add 0.59% | <0.01 | $29.56–39.31 · VW $34.28i | $89,064,154,000 | SEC |
| 2008 Q3 | 2,519,081 | 1.78 | Reduce 1.35% | 0.02 | $34.29–52.16 · VW $41.24i | $122,225,803,000 | SEC |
| 2008 Q2 | 2,553,491 | 1.63 | Add 1.02% | 0.02 | $42.00–46.87 · VW $44.52i | $109,774,572,000 | SEC |
| 2008 Q1 | 2,527,731 | 1.51 | Reduce 3.52% | 0.10 | $42.52–51.00 · VW $46.49i | $109,779,351,000 | SEC |
| 2007 Q4 | 2,619,891 | 2.73 | Reduce 0.24% | <0.01 | $44.12–52.78 · VW $48.35i | $134,164,610 | SEC |
| 2007 Q3 | 2,626,245 | 1.48 | Add 2.82% | 0.04 | $39.01–48.37 · VW $44.85i | $123,958,757,000 | SEC |
| 2007 Q2 | 2,554,185 | 1.32 | Add 0.48% | <0.01 | $41.12–44.74 · VW $42.66i | $109,063,693 | SEC |
| 2007 Q1 | 2,542,030 | 1.39 | Add 0.22% | <0.01 | $37.01–44.91 · VW $41.64i | $109,307,284 | SEC |
| 2006 Q4 | 2,536,530 | 1.47 | Reduce 0.76% | 0.02 | $42.77–46.40 · VW $44.36i | $114,651,149 | SEC |
| 2006 Q3 | 2,555,895 | 3.00 | Reduce 14.06% | 0.44 | $39.89–45.65 · VW $43.63i | $109,443,417 | SEC |
| 2006 Q2 | 2,974,058 | 3.10 | Add 5.08% | 0.15 | $37.00–43.40 · VW $41.16i | $120,687,268 | SEC |
| 2006 Q1 | 2,830,270 | 1.48 | Reduce 2.16% | 0.03 | $33.64–40.50 · VW $37.31i | $108,116,308 | SEC |
| 2005 Q4 | 2,892,870 | 1.52 | Add 3.14% | 0.05 | $32.42–37.15 · VW $35.13i | $104,924,389 | SEC |
| 2005 Q3 | 2,804,767 | 2.80 | Add 1.87% | 0.05 | $30.90–34.08 · VW $32.69i | $89,556,206 | SEC |
| 2005 Q2 | 2,753,367 | 1.40 | Add 13.06% | 0.16 | $30.68–34.14 · VW $32.80i | $89,098,951 | SEC |
| 2005 Q1 | 2,435,407 | 1.34 | Add 13.34% | 0.16 | $31.20–34.23 · VW $32.71i | $80,490,196 | SEC |
| 2004 Q4 | 2,148,691 | 1.36 | Add 0.46% | <0.01 | $33.15–35.59 · VW $34.13i | $75,483,510 | SEC |
| 2004 Q3 | 2,138,769 | 2.88 | Add 0.20% | <0.01 | $29.04–34.20 · VW $32.36i | $67,242,893 | SEC |
| 2004 Q2 | 2,134,555 | 2.98 | Add 2.31% | 0.07 | $28.02–31.77 · VW $30.10i | $67,665,389 | SEC |
| 2004 Q1 | 2,086,355 | 1.43 | Add 31.02% | 0.34 | $26.59–30.17 · VW $28.85i | $59,523,704 | SEC |
| 2003 Q4 | 1,592,335 | 1.17 | Add 28.83% | 0.26 | $25.30–27.89 · VW $26.79i | $43,582,205 | SEC |
| 2003 Q3 | 1,235,985 | 0.97 | Add 0.22% | <0.01 | $24.26–27.80 · VW $26.32i | $31,208,617 | SEC |
| 2003 Q2 | 1,233,285 | 2.16 | Add 3.05% | 0.06 | $23.78–27.92 · VW $25.47i | $31,572,092 | SEC |
| 2003 Q1 | 1,196,806 | 1.24 | Reduce 0.24% | <0.01 | $23.08–26.38 · VW $25.00i | $29,519,213 | SEC |
| 2002 Q4 | 1,199,694 | 1.25 | Reduce 2.16% | 0.03 | $23.43–25.90 · VW $24.66i | $29,692,419 | SEC |
| 2002 Q3 | 1,226,144 | 1.20 | Add 0.07% | <0.01 | $20.00–24.92 · VW $23.01i | $25,583,488 | SEC |
| 2002 Q2 | 1,225,344 | 1.26 | $23.12 | $28,323,820 | SEC | ||
| 2002 Q1 | 1,225,344 | 2.44 | Add 1.44% | 0.03 | $20.61–23.94 · VW $22.17i | $28,011,357 | SEC |
| 2001 Q4 | 1,207,952 | 1.22 | Add 0.95% | 0.01 | $17.50–21.41 · VW $20.10i | $24,310,034 | SEC |
| 2001 Q3 | 1,196,552 | 1.24 | Add 0.38% | <0.01 | $14.25–21.00 · VW $17.61i | $21,735,367 | SEC |
| 2001 Q2 | 1,191,976 | 2.76 | Add 0.22% | <0.01 | $18.80–21.15 · VW $19.99i | $24,417,628 | SEC |
| 2001 Q1 | 1,189,376 | 1.54 | Reduce 0.17% | <0.01 | $18.17–22.03 · VW $19.71i | $25,226,665 | SEC |
| 2000 Q4 | 1,191,376 | 1.49 | $21.60 | $25,726,276 | SEC | ||
| 2000 Q3 | 1,191,376 | 1.40 | Add 1.53% | 0.02 | $16.63–20.13 · VW $18.78i | $21,481,998 | SEC |
| 2000 Q2 | 1,173,376 | 1.44 | Reduce 0.31% | <0.01 | $17.31–20.63 · VW $18.61i | $22,917,500 | SEC |
| 2000 Q1 | 1,176,976 | 2.86 | Add 0.36% | 0.01 | $14.00–20.00 · VW $17.84i | $21,590,153 | SEC |
| 1999 Q4 | 1,172,776 | 1.46 | Add 0.39% | <0.01 | $16.44–20.38 · VW $18.14i | $22,942,430 | SEC |
| 1999 Q3 | 1,168,176 | 1.26 | Buy | 1.26 | $15.84–21.50 · VW $18.08i | $19,932,003 | SEC |
Price snapshot:
Current price$271.85
Avg. buy price$2,455.71
+/- since buy-88.93%
52-week low$242.49
52-week high$307.61