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Chesley Taft & Associates’s Ecolab ECL Stock Holding History

Chesley Taft & Associates’s Portfolio ECL Stock Details ECL Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$11.3M Buy
40,413
+420
+1% +$111K 0.44% 55
2026
Q1 		$10.6M Buy
39,993
+42
+0.1% +$11.9K 0.44% 56
2025
Q4 		$10.5M Buy
39,951
+1,268
+3% +$338K 0.41% 56
2025
Q3 		$10.6M Sell
38,683
-58
-0.1% -$15.8K 0.45% 55
2025
Q2 		$10.4M Sell
38,741
-726
-2% -$185K 0.47% 55
2025
Q1 		$10M Sell
39,467
-1,445
-4% -$364K 0.48% 57
2024
Q4 		$9.59M Sell
40,912
-635
-2% -$158K 0.45% 56
2024
Q3 		$10.6M Buy
41,547
+314
+0.8% +$76.8K 0.51% 54
2024
Q2 		$9.81M Buy
41,233
+73
+0.2% +$16.9K 0.49% 53
2024
Q1 		$9.5M Sell
41,160
-135
-0.3% -$28.6K 0.49% 55
2023
Q4 		$8.19M Sell
41,295
-160
-0.4% -$28.8K 0.46% 55
2023
Q3 		$7.02M Sell
41,455
-270
-0.6% -$49.1K 0.46% 55
2023
Q2 		$7.79M Sell
41,725
-805
-2% -$139K 0.48% 58
2023
Q1 		$7.04M Sell
42,530
-90
-0.2% -$14K 0.46% 60
2022
Q4 		$6.2M Sell
42,620
-49
-0.1% -$7.2K 0.43% 63
2022
Q3 		$6.16M Sell
42,669
-90
-0.2% -$14.6K 0.45% 55
2022
Q2 		$6.58M Sell
42,759
-185
-0.4% -$30.7K 0.45% 59
2022
Q1 		$7.7M Sell
42,944
-835
-2% -$157K 0.45% 60
2021
Q4 		$10.3M Sell
43,779
-110
-0.3% -$24.9K 0.53% 56
2021
Q3 		$9.16M Sell
43,889
-145
-0.3% -$31.8K 0.52% 57
2021
Q2 		$9.07M Sell
44,034
-315
-0.7% -$68.5K 0.52% 55
2021
Q1 		$9.71M Buy
44,349
+215
+0.5% +$45.7K 0.58% 53
2020
Q4 		$9.55M Sell
44,134
-515
-1% -$108K 0.61% 48
2020
Q3 		$8.92M Sell
44,649
-41,610
-48% -$8.31M 0.63% 45
2020
Q2 		$17.2M Sell
86,259
-1,920
-2% -$372K 1.31% 21
2020
Q1 		$13.7M Sell
88,179
-5,123
-5% -$963K 1.25% 26
2019
Q4 		$18M Buy
93,302
+305
+0.3% +$57.9K 1.3% 22
2019
Q3 		$18.4M Sell
92,997
-4,315
-4% -$865K 1.43% 18
2019
Q2 		$19.2M Sell
97,312
-1,195
-1% -$222K 1.5% 18
2019
Q1 		$17.4M Sell
98,507
-950
-1% -$154K 1.45% 20
2018
Q4 		$14.7M Sell
99,457
-7,035
-7% -$1.07M 1.42% 18
2018
Q3 		$16.7M Buy
106,492
+795
+0.8% +$118K 1.33% 19
2018
Q2 		$14.8M Sell
105,697
-215
-0.2% -$31K 1.27% 23
2018
Q1 		$14.5M Sell
105,912
-5,290
-5% -$711K 1.29% 23
2017
Q4 		$14.9M Sell
111,202
-2,885
-3% -$384K 1.26% 23
2017
Q3 		$14.7M Sell
114,087
-123
-0.1% -$16.2K 1.27% 19
2017
Q2 		$15.2M Buy
114,210
+1,030
+0.9% +$133K 1.37% 18
2017
Q1 		$14.2M Sell
113,180
-1,685
-1% -$206K 1.34% 20
2016
Q4 		$13.5M Sell
114,865
-1,395
-1% -$163K 1.33% 19
2016
Q3 		$14.2M Sell
116,260
-550
-0.5% -$66.4K 1.43% 16
2016
Q2 		$13.9M Sell
116,810
-690
-0.6% -$80.4K 1.42% 16
2016
Q1 		$13.1M Buy
117,500
+2,327
+2% +$247K 1.38% 19
2015
Q4 		$13.2M Sell
115,173
-17,485
-13% -$2.06M 1.38% 19
2015
Q3 		$14.6M Buy
132,658
+573
+0.4% +$64.1K 1.59% 16
2015
Q2 		$14.9M Sell
132,085
-1,435
-1% -$165K 1.52% 19
2015
Q1 		$15.3M Sell
133,520
-30,730
-19% -$3.37M 1.57% 17
2014
Q4 		$17.2M Sell
164,250
-315
-0.2% -$34.5K 1.74% 8
2014
Q3 		$18.9M Sell
164,565
-1,640
-1% -$185K 1.98% 7
2014
Q2 		$18.5M Sell
166,205
-2,495
-1% -$267K 1.91% 7
2014
Q1 		$18.2M Sell
168,700
-1,155
-0.7% -$121K 1.95% 6
2013
Q4 		$17.7M Sell
169,855
-1,645
-1% -$171K 1.77% 6
2013
Q3 		$16.9M Buy
171,500
+425
+0.2% +$39.5K 1.85% 7
2013
Q2 		$14.6M Buy
+171,075
New +$14.4M 1.69% 11

Other funds holding ECL

Swedbank
Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return
CAM
Congress Asset Management Boston, Massachusetts $16.3B AUM 42.69% 1-Year Est. Return
SP
Sarasin & Partners London, United Kingdom $8.54B AUM 9.6% 1-Year Est. Return
DKAM
Drummond Knight Asset Management Crows Nest, NSW, Australia $545M AUM 73.62% 1-Year Est. Return
HCM
Howland Capital Management Boston, Massachusetts $2.77B AUM 19.56% 1-Year Est. Return
Handelsbanken Fonder
Handelsbanken Fonder Stockholm, Sweden $35.1B AUM 47.76% 1-Year Est. Return
EB
Eastern Bank Boston, Massachusetts $6.53B AUM 30.05% 1-Year Est. Return
AV
ASR Vermogensbeheer Utrecht, Netherlands $9.71B AUM 37.32% 1-Year Est. Return
AIM
Avity Investment Management Greenwich, Connecticut $1.57B AUM 35.56% 1-Year Est. Return
PTPFOECYE
PBU - The Pension Fund of Early Childhood & Youth Educators Copenhagen $4.42B AUM

Chesley Taft & Associates's ECL Position: Q2 2026 in Review

Chesley Taft & Associates increased its Ecolab (ECL) stake by 1.1% in Q2 2026, buying an estimated $111K and bringing the position to 40,413 shares worth $11.3M. The position accounts for 0.44% of the portfolio, ranked #55.

Chesley Taft & Associates first reported a position in ECL in Q2 2013 and has held it in 53 quarters since. The position peaked at $19.2M in Q2 2019. 313 funds tracked by Wall St. Rank hold ECL as of Q2 2026.

  • Chesley Taft & Associates held 40,413 shares of Ecolab worth $11.3M as of Q2 2026.
  • Chesley Taft & Associates bought 420 Ecolab shares in Q2 2026, an estimated $111K.
  • Ecolab made up 0.44% of Chesley Taft & Associates's portfolio in Q2 2026, its #55 holding.
  • Chesley Taft & Associates first reported a position in Ecolab in Q2 2013 and has held it in 53 quarters since.
  • Chesley Taft & Associates's Ecolab position peaked at $19.2M in Q2 2019.
  • 313 funds tracked by Wall St. Rank held Ecolab as of Q2 2026.

Based on Chesley Taft & Associates's 13F filing for Q2 2026, filed 8 Jul 2026.