ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025
Shares 500,510 Value ($000) $131,394 Avg Close $265.71 Range $251.04 - $281.41
Q3 2025
Shares 500,649 Value ($000) $137,108 Avg Close $270.32 Range $253.71 - $284.56
Q2 2025
Shares 485,583 Value ($000) $130,835 Avg Close $252.35 Range $219.93 - $269.19
Q1 2025
Shares 476,292 Value ($000) $120,750 Avg Close $249.61 Range $225.31 - $270.90
Q4 2024
Shares 482,136 Value ($000) $112,974 Avg Close $245.53 Range $230.70 - $259.26
Q3 2024
Shares 477,688 Value ($000) $121,968 Avg Close $241.07 Range $217.65 - $253.31
Q2 2024
Shares 467,151 Value ($000) $111,182 Avg Close $227.14 Range $213.29 - $242.24
Q1 2024
Shares 451,989 Value ($000) $104,364 Avg Close $207.94 Range $189.63 - $227.85
Q4 2023
Shares 440,024 Value ($000) $87,279 Avg Close $175.85 Range $153.18 - $197.06
Q3 2023
Shares 424,971 Value ($000) $71,990 Avg Close $177.30 Range $163.22 - $186.52
Q2 2023
Shares 428,405 Value ($000) $79,979 Avg Close $167.31 Range $156.95 - $182.94
Q1 2023
Shares 443,846 Value ($000) $73,470 Avg Close $150.99 Range $139.35 - $161.29
Q4 2022
Shares 447,925 Value ($000) $65,200 Avg Close $141.81 Range $126.42 - $153.48
Q3 2022
Shares 437,481 Value ($000) $63,181 Avg Close $156.07 Range $138.29 - $171.23
Q2 2022
Shares 442,521 Value ($000) $68,042 Avg Close $158.99 Range $137.82 - $177.76
Q1 2022
Shares 441,096 Value ($000) $77,880 Avg Close $179.54 Range $147.91 - $226.74
Q4 2021
Shares 464,756 Value ($000) $109,027 Avg Close $215.53 Range $199.33 - $227.72
Q3 2021
Shares 446,570 Value ($000) $93,163 Avg Close $208.54 Range $195.25 - $219.93
Q2 2021
Shares 452,279 Value ($000) $93,156 Avg Close $206.33 Range $194.28 - $218.25
Q1 2021
Shares 465,064 Value ($000) $99,556 Avg Close $201.55 Range $190.45 - $215.84
Q4 2020
Shares 459,070 Value ($000) $99,324 Avg Close $197.47 Range $171.24 - $214.73
Q3 2020
Shares 454,326 Value ($000) $90,793 Avg Close $188.44 Range $172.53 - $201.15
Q2 2020
Shares 451,737 Value ($000) $89,873 Avg Close $182.16 Range $136.65 - $217.57
Q1 2020
Shares 473,125 Value ($000) $73,727 Avg Close $176.33 Range $117.17 - $198.13
Q4 2019
Shares 474,722 Value ($000) $91,617 Avg Close $177.67 Range $169.74 - $186.58
Q3 2019
Shares 442,584 Value ($000) $87,649 Avg Close $187.16 Range $179.22 - $195.89
Q2 2019
Shares 437,655 Value ($000) $86,411 Avg Close $173.21 Range $164.99 - $187.12
Q1 2019
Shares 438,213 Value ($000) $77,362 Avg Close $150.92 Range $131.24 - $169.66
Q4 2018
Shares 441,827 Value ($000) $65,103 Avg Close $141.48 Range $126.10 - $150.86
Q3 2018
Shares 436,423 Value ($000) $68,422 Avg Close $137.00 Range $128.06 - $148.09
Q2 2018
Shares 435,977 Value ($000) $61,181 Avg Close $132.91 Range $122.30 - $138.58
Q1 2018
Shares 427,551 Value ($000) $58,604 Avg Close $123.54 Range $115.47 - $129.02
Q4 2017
Shares 441,359 Value ($000) $59,222 Avg Close $121.85 Range $117.53 - $126.30
Q3 2017
Shares 448,113 Value ($000) $57,632 Avg Close $120.10 Range $116.11 - $122.59
Q2 2017
Shares 488,654 Value ($000) $64,869 Avg Close $117.68 Range $113.27 - $123.01
Q1 2017
Shares 518,834 Value ($000) $65,031 Avg Close $111.04 Range $106.47 - $114.69
Q4 2016
Shares 542,634 Value ($000) $63,608 Avg Close $105.98 Range $100.13 - $110.74
Q3 2016
Shares 557,134 Value ($000) $67,814 Avg Close $108.98 Range $105.46 - $112.42
Q2 2016
Shares 552,434 Value ($000) $65,519 Avg Close $104.92 Range $98.81 - $109.58
Q1 2016
Shares 560,871 Value ($000) $62,548 Avg Close $95.34 Range $88.43 - $102.02
Q4 2015
Shares 489,217 Value ($000) $55,957 Avg Close $105.21 Range $98.01 - $109.49
Q3 2015
Shares 481,484 Value ($000) $52,828 Avg Close $99.79 Range $91.88 - $104.89
Q2 2015
Shares 482,184 Value ($000) $54,521 Avg Close $102.25 Range $97.79 - $105.41
Q1 2015
Shares 488,490 Value ($000) $55,873 Avg Close $97.19 Range $86.65 - $103.73
Q4 2014
Shares 496,890 Value ($000) $51,935 Avg Close $96.70 Range $89.74 - $101.94
Q3 2014
Shares 492,087 Value ($000) $56,506 Avg Close $99.26 Range $94.57 - $104.65
Q2 2014
Shares 486,693 Value ($000) $54,188 Avg Close $94.25 Range $89.51 - $98.33
Q1 2014
Shares 476,993 Value ($000) $51,510 Avg Close $91.92 Range $85.62 - $98.30
Q4 2013
Shares 474,793 Value ($000) $49,507 Avg Close $90.95 Range $84.34 - $94.74
Q3 2013
Shares 471,593 Value ($000) $46,575 Avg Close $81.20 Range $74.57 - $86.97
Q2 2013
Shares 456,937 Value ($000) $38,926 Avg Close $73.48 Range $68.51 - $77.84
Q1 2013
Shares 452,090 Value ($000) $36,249 Avg Close $65.61 Range $62.45 - $70.20