Robeco Institutional Asset Management
WAT icon

Robeco Institutional Asset Management’s Waters Corp WAT Stock Holding History

Robeco Institutional Asset Management’s Portfolio WAT Stock Details WAT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$19.7M Buy
52,523
+11,167
+27% +$3.81M 0.02% 364
2026
Q1 		$12.3M Buy
41,356
+15,415
+59% +$5.27M 0.02% 405
2025
Q4 		$9.85M Sell
25,941
-3,078
-11% -$1.13M 0.01% 439
2025
Q3 		$8.7M Sell
29,019
-486,476
-94% -$147M 0.01% 479
2025
Q2 		$180M Buy
515,495
+72,174
+16% +$24.8M 0.29% 82
2025
Q1 		$163M Buy
443,321
+21,630
+5% +$8.37M 0.32% 72
2024
Q4 		$156M Buy
421,691
+27,801
+7% +$10.2M 0.3% 76
2024
Q3 		$142M Buy
393,890
+100,811
+34% +$32.8M 0.28% 79
2024
Q2 		$85M Buy
293,079
+1,372
+0.5% +$438K 0.18% 117
2024
Q1 		$100M Buy
291,707
+42,210
+17% +$13.9M 0.22% 102
2023
Q4 		$82.1M Buy
249,497
+232,708
+1,386% +$64.3M 0.2% 118
2023
Q3 		$4.6M Sell
16,789
-24,806
-60% -$6.85M 0.01% 560
2023
Q2 		$11.1M Sell
41,595
-38,396
-48% -$10.7M 0.03% 409
2023
Q1 		$24.8M Buy
79,991
+24,557
+44% +$7.94M 0.07% 277
2022
Q4 		$19M Sell
55,434
-158,242
-74% -$50.1M 0.05% 320
2022
Q3 		$57.6M Sell
213,676
-59,496
-22% -$19M 0.19% 123
2022
Q2 		$90.4M Sell
273,172
-7,095
-3% -$2.25M 0.28% 90
2022
Q1 		$87M Sell
280,267
-21,122
-7% -$6.87M 0.2% 119
2021
Q4 		$112M Buy
301,389
+6,539
+2% +$2.29M 0.24% 107
2021
Q3 		$105M Sell
294,850
-49,822
-14% -$19.5M 0.23% 113
2021
Q2 		$119M Buy
344,672
+68,309
+25% +$21.6M 0.26% 103
2021
Q1 		$78.5M Buy
276,363
+27,903
+11% +$7.62M 0.19% 131
2020
Q4 		$61.5M Buy
248,460
+164,122
+195% +$37.2M 0.16% 156
2020
Q3 		$16.5M Buy
84,338
+2,345
+3% +$487K 0.05% 338
2020
Q2 		$14.8M Buy
81,993
+20,683
+34% +$3.91M 0.05% 363
2020
Q1 		$11.2M Buy
61,310
+1,302
+2% +$275K 0.04% 397
2019
Q4 		$14M Sell
60,008
-5,886
-9% -$1.3M 0.04% 415
2019
Q3 		$14.7M Sell
65,894
-3,205
-5% -$692K 0.05% 370
2019
Q2 		$14.9M Sell
69,099
-14,795
-18% -$3.23M 0.05% 390
2019
Q1 		$21.1M Buy
83,894
+41,075
+96% +$9.36M 0.08% 330
2018
Q4 		$8.05M Buy
42,819
+1,680
+4% +$319K 0.04% 455
2018
Q3 		$8.01M Sell
41,139
-74,955
-65% -$14.5M 0.03% 486
2018
Q2 		$22.5M Sell
116,094
-4,862
-4% -$958K 0.1% 252
2018
Q1 		$24M Sell
120,956
-1,046
-0.9% -$216K 0.11% 232
2017
Q4 		$23.6M Buy
122,002
+27,603
+29% +$5.33M 0.12% 209
2017
Q3 		$16.9M Buy
94,399
+25
+0% +$4.53K 0.11% 222
2017
Q2 		$17.3M Sell
94,374
-1,547
-2% -$269K 0.11% 219
2017
Q1 		$15M Sell
95,921
-166,741
-63% -$24.9M 0.1% 235
2016
Q4 		$35.3M Buy
262,662
+48,066
+22% +$6.86M 0.28% 114
2016
Q3 		$34M Buy
214,596
+77,731
+57% +$12M 0.25% 123
2016
Q2 		$19.3M Buy
136,865
+2,750
+2% +$372K 0.15% 178
2016
Q1 		$17.7M Sell
134,115
-19,658
-13% -$2.45M 0.14% 177
2015
Q4 		$20.7M Buy
153,773
+3,867
+3% +$497K 0.18% 164
2015
Q3 		$17.7M Buy
149,906
+91,727
+158% +$11.6M 0.14% 200
2015
Q2 		$7.47M Buy
58,179
+53,899
+1,259% +$6.99M 0.06% 296
2015
Q1 		$532K Sell
4,280
-7
-0.2% -$835 ﹤0.01% 626
2014
Q4 		$483K Buy
4,287
+2,908
+211% +$319K ﹤0.01% 643
2014
Q3 		$137K Hold
1,379
– – ﹤0.01% 718
2014
Q2 		$144K Buy
1,379
+852
+162% +$89.6K ﹤0.01% 697
2014
Q1 		$57K Hold
527
– – ﹤0.01% 689
2013
Q4 		$53K Hold
527
– – ﹤0.01% 625
2013
Q3 		$56K Hold
527
– – ﹤0.01% 616
2013
Q2 		$53K Buy
+527
New +$50.5K ﹤0.01% 595

Other funds holding WAT

Assenagon Asset Management
Assenagon Asset Management Senningerberg, Luxembourg $80.2B AUM 50.57% 1-Year Est. Return
SBWIC
Schaper Benz & Wise Investment Counsel Neenah, Wisconsin $1.5B AUM 31.02% 1-Year Est. Return
Handelsbanken Fonder
Handelsbanken Fonder Stockholm, Sweden $35.1B AUM 47.76% 1-Year Est. Return
Swedbank
Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return
PTPFOECYE
PBU - The Pension Fund of Early Childhood & Youth Educators Copenhagen $4.42B AUM
CNB
Czech National Bank Prague, Czech Republic $18.3B AUM 43.04% 1-Year Est. Return
CAM
Cacti Asset Management Atlanta, Georgia $1.99B AUM 86.33% 1-Year Est. Return
DS
Dudley & Shanley Palm Beach, Florida $662M AUM 10.7% 1-Year Est. Return
II
IFM Investors Melbourne, Australia $15.1B AUM 40.57% 1-Year Est. Return
GIA
GHP Investment Advisors Denver, Colorado $2.72B AUM 27.58% 1-Year Est. Return

Robeco Institutional Asset Management's WAT Position: Q2 2026 in Review

Robeco Institutional Asset Management increased its Waters Corp (WAT) stake by 27% in Q2 2026, buying an estimated $3.81M and bringing the position to 52,523 shares worth $19.7M. The position accounts for 0.02% of the portfolio, ranked #364.

Robeco Institutional Asset Management first reported a position in WAT in Q2 2013 and has held it in 53 quarters since. The position peaked at $180M in Q2 2025. 224 funds tracked by Wall St. Rank hold WAT as of Q2 2026.

  • Robeco Institutional Asset Management held 52,523 shares of Waters Corp worth $19.7M as of Q2 2026.
  • Robeco Institutional Asset Management bought 11,167 Waters Corp shares in Q2 2026, an estimated $3.81M.
  • Waters Corp made up 0.02% of Robeco Institutional Asset Management's portfolio in Q2 2026, its #364 holding.
  • Robeco Institutional Asset Management first reported a position in Waters Corp in Q2 2013 and has held it in 53 quarters since.
  • Robeco Institutional Asset Management's Waters Corp position peaked at $180M in Q2 2025.
  • 224 funds tracked by Wall St. Rank held Waters Corp as of Q2 2026.

Based on Robeco Institutional Asset Management's 13F filing for Q2 2026, filed 21 Jul 2026.