State of Wisconsin Investment Board
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State of Wisconsin Investment Board’s Ecolab ECL Stock Holding History

State of Wisconsin Investment Board’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
Q1 		$36.7M Buy
138,121
+5,852
+4% +$1.65M 0.08% 210
2025
Q4 		$34.7M Sell
132,269
-2,059
-2% -$548K 0.08% 212
2025
Q3 		$36.8M Sell
134,328
-1,957
-1% -$532K 0.08% 194
2025
Q2 		$36.7M Sell
136,285
-38,326
-22% -$9.74M 0.09% 192
2025
Q1 		$44.3M Buy
174,611
+10,308
+6% +$2.6M 0.11% 156
2024
Q4 		$38.5M Sell
164,303
-84,984
-34% -$21.1M 0.1% 179
2024
Q3 		$63.7M Sell
249,287
-34,256
-12% -$8.38M 0.16% 116
2024
Q2 		$67.5M Buy
283,543
+27,539
+11% +$6.36M 0.18% 103
2024
Q1 		$59.1M Buy
256,004
+76,767
+43% +$16.3M 0.16% 123
2023
Q4 		$35.6M Buy
179,237
+42,891
+31% +$7.71M 0.1% 174
2023
Q3 		$23.1M Buy
136,346
+2,927
+2% +$532K 0.07% 257
2023
Q2 		$24.9M Sell
133,419
-24,785
-16% -$4.27M 0.07% 270
2023
Q1 		$26.2M Buy
158,204
+10,546
+7% +$1.64M 0.08% 254
2022
Q4 		$21.5M Buy
147,658
+6,175
+4% +$907K 0.07% 289
2022
Q3 		$20.4M Sell
141,483
-15,169
-10% -$2.46M 0.06% 301
2022
Q2 		$24.1M Buy
156,652
+12,308
+9% +$2.04M 0.06% 306
2022
Q1 		$25.5M Buy
144,344
+20,582
+17% +$3.87M 0.05% 358
2021
Q4 		$29M Sell
123,762
-851
-0.7% -$192K 0.06% 357
2021
Q3 		$26M Buy
124,613
+8,502
+7% +$1.86M 0.05% 377
2021
Q2 		$23.9M Sell
116,111
-5,157
-4% -$1.12M 0.05% 393
2021
Q1 		$26M Sell
121,268
-12,238
-9% -$2.6M 0.06% 362
2020
Q4 		$28.9M Sell
133,506
-2,735
-2% -$571K 0.07% 312
2020
Q3 		$27.2M Buy
136,241
+580
+0.4% +$116K 0.07% 298
2020
Q2 		$27M Buy
135,661
+8,660
+7% +$1.68M 0.07% 287
2020
Q1 		$19.8M Sell
127,001
-66,414
-34% -$12.5M 0.07% 310
2019
Q4 		$37.3M Buy
193,415
+21,653
+13% +$4.11M 0.09% 233
2019
Q3 		$34M Sell
171,762
-19,077
-10% -$3.82M 0.09% 237
2019
Q2 		$37.7M Sell
190,839
-44,038
-19% -$8.19M 0.11% 217
2019
Q1 		$41.5M Buy
234,877
+18,659
+9% +$3.03M 0.12% 187
2018
Q4 		$31.9M Sell
216,218
-38,250
-15% -$5.84M 0.1% 212
2018
Q3 		$39.9M Sell
254,468
-20,178
-7% -$2.99M 0.11% 196
2018
Q2 		$38.5M Buy
274,646
+2,398
+0.9% +$346K 0.11% 198
2018
Q1 		$37.3M Buy
272,248
+294
+0.1% +$39.5K 0.11% 199
2017
Q4 		$36.5M Sell
271,954
-39
-0% -$5.19K 0.1% 222
2017
Q3 		$35M Buy
271,993
+13,239
+5% +$1.74M 0.1% 214
2017
Q2 		$34.4M Buy
258,754
+54,970
+27% +$7.1M 0.11% 210
2017
Q1 		$25.5M Buy
203,784
+20,594
+11% +$2.52M 0.1% 231
2016
Q4 		$21.5M Sell
183,190
-57,224
-24% -$6.7M 0.09% 228
2016
Q3 		$29.3M Sell
240,414
-6,800
-3% -$821K 0.12% 198
2016
Q2 		$29.3M Sell
247,214
-13,840
-5% -$1.61M 0.12% 183
2016
Q1 		$29.1M Buy
261,054
+52,570
+25% +$5.59M 0.11% 199
2015
Q4 		$23.8M Sell
208,484
-31,110
-13% -$3.66M 0.09% 241
2015
Q3 		$26.3M Buy
239,594
+39,960
+20% +$4.47M 0.1% 231
2015
Q2 		$22.6M Sell
199,634
-2,780
-1% -$320K 0.08% 299
2015
Q1 		$23.2M Sell
202,414
-5,550
-3% -$608K 0.08% 298
2014
Q4 		$21.7M Buy
207,964
+31,870
+18% +$3.49M 0.07% 317
2014
Q3 		$20.2M Sell
176,094
-12,680
-7% -$1.43M 0.07% 317
2014
Q2 		$21M Buy
188,774
+10,320
+6% +$1.11M 0.08% 313
2014
Q1 		$19.3M Sell
178,454
-8,790
-5% -$921K 0.07% 326
2013
Q4 		$19.5M Sell
187,244
-2,356
-1% -$245K 0.08% 310
2013
Q3 		$18.7M Sell
189,600
-18,154
-9% -$1.69M 0.08% 313
2013
Q2 		$17.7M Buy
+207,754
New +$17.5M 0.07% 326

Other funds holding ECL

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Gates Foundation Trust
Gates Foundation Trust Kirkland, Washington $31.7B AUM 20.52% 1-Year Est. Return
Aristotle Capital Management
Aristotle Capital Management Los Angeles, California $47.8B AUM 13.38% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $481B AUM 26.39% 1-Year Est. Return

State of Wisconsin Investment Board's ECL Position: Q1 2026 in Review

State of Wisconsin Investment Board increased its Ecolab (ECL) stake by 4.4% in Q1 2026, buying an estimated $1.65M and bringing the position to 138,121 shares worth $36.7M. The position accounts for 0.08% of the portfolio, ranked #210.

State of Wisconsin Investment Board first reported a position in ECL in Q2 2013 and has held it in 52 quarters since. The position peaked at $67.5M in Q2 2024. 1,694 funds tracked by Wall St. Rank hold ECL as of Q1 2026.

  • State of Wisconsin Investment Board held 138,121 shares of Ecolab worth $36.7M as of Q1 2026.
  • State of Wisconsin Investment Board bought 5,852 Ecolab shares in Q1 2026, an estimated $1.65M.
  • Ecolab made up 0.08% of State of Wisconsin Investment Board's portfolio in Q1 2026, its #210 holding.
  • State of Wisconsin Investment Board first reported a position in Ecolab in Q2 2013 and has held it in 52 quarters since.
  • State of Wisconsin Investment Board's Ecolab position peaked at $67.5M in Q2 2024.
  • 1,694 funds tracked by Wall St. Rank held Ecolab as of Q1 2026.

Based on State of Wisconsin Investment Board's 13F filing for Q1 2026, filed 15 May 2026.