Mawer Investment Management
WAT icon

Mawer Investment Management’s Waters Corp WAT Stock Holding History

Mawer Investment 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
Q1 		$418M Buy
1,403,627
+104,875
+8% +$35.9M 2.71% 9
2025
Q4 		$493M Sell
1,298,752
-252,258
-16% -$92.8M 2.76% 10
2025
Q3 		$465M Buy
1,551,010
+1,074,449
+225% +$324M 2.41% 13
2025
Q2 		$166M Sell
476,561
-36,953
-7% -$12.7M 0.84% 34
2025
Q1 		$189M Sell
513,514
-6,262
-1% -$2.42M 0.91% 32
2024
Q4 		$193M Sell
519,776
-11,856
-2% -$4.34M 0.88% 30
2024
Q3 		$191M Sell
531,632
-6,420
-1% -$2.09M 0.87% 28
2024
Q2 		$156M Sell
538,052
-45,801
-8% -$14.6M 0.74% 32
2024
Q1 		$201M Sell
583,853
-16,583
-3% -$5.45M 0.93% 28
2023
Q4 		$198M Sell
600,436
-4,216
-0.7% -$1.16M 1.01% 26
2023
Q3 		$166M Sell
604,652
-11,769
-2% -$3.25M 0.89% 31
2023
Q2 		$164M Buy
616,421
+13,807
+2% +$3.84M 0.86% 33
2023
Q1 		$187M Buy
602,614
+2,597
+0.4% +$840K 1.02% 31
2022
Q4 		$206M Buy
600,017
+3,267
+0.5% +$1.03M 1.16% 27
2022
Q3 		$161M Buy
596,750
+39,144
+7% +$12.5M 0.98% 30
2022
Q2 		$185M Sell
557,606
-21,217
-4% -$6.73M 1.05% 27
2022
Q1 		$180M Sell
578,823
-9,630
-2% -$3.13M 0.85% 29
2021
Q4 		$219M Buy
588,453
+7,025
+1% +$2.46M 0.99% 24
2021
Q3 		$208M Buy
581,428
+902
+0.2% +$353K 1% 23
2021
Q2 		$201M Sell
580,526
-13,794
-2% -$4.37M 0.99% 26
2021
Q1 		$169M Sell
594,320
-1,915
-0.3% -$523K 0.92% 29
2020
Q4 		$147M Buy
596,235
+1,377
+0.2% +$312K 0.87% 31
2020
Q3 		$114M Sell
594,858
-9,967
-2% -$2.07M 0.74% 35
2020
Q2 		$109M Buy
604,825
+6,608
+1% +$1.25M 0.8% 33
2020
Q1 		$109M Buy
598,217
+6,979
+1% +$1.47M 1.01% 28
2019
Q4 		$138M Buy
591,238
+48,154
+9% +$10.6M 1.12% 26
2019
Q3 		$121M Buy
543,084
+10,865
+2% +$2.35M 1.11% 26
2019
Q2 		$115M Buy
532,219
+35,506
+7% +$7.76M 0.74% 46
2019
Q1 		$125M Sell
496,713
-17,775
-3% -$4.05M 0.89% 43
2018
Q4 		$97M Sell
514,488
-732
-0.1% -$139K 0.8% 44
2018
Q3 		$100M Buy
515,220
+29,756
+6% +$5.76M 0.75% 49
2018
Q2 		$94M Buy
485,464
+74,165
+18% +$14.6M 0.76% 47
2018
Q1 		$81.7M Sell
411,299
-1,459
-0.4% -$302K 0.68% 50
2017
Q4 		$79.7M Sell
412,758
-3,906
-0.9% -$754K 0.66% 50
2017
Q3 		$74.8M Buy
416,664
+9,173
+2% +$1.66M 0.64% 53
2017
Q2 		$74.9M Sell
407,491
-660
-0.2% -$115K 0.69% 52
2017
Q1 		$63.8M Buy
408,151
+177,661
+77% +$26.5M 0.62% 56
2016
Q4 		$31M Buy
230,490
+146,346
+174% +$20.9M 0.32% 70
2016
Q3 		$13.3M Buy
84,144
+210
+0.3% +$32.5K 0.14% 82
2016
Q2 		$11.8M Buy
83,934
+47,934
+133% +$6.48M 0.17% 66
2016
Q1 		$4.75M Buy
+36,000
New +$4.49M 0.06% 94

Other funds holding WAT

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $298B AUM 21.96% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Fundsmith LLP
Fundsmith LLP London, United Kingdom $12.8B AUM 6.9% 1-Year Est. Return
AllianceBernstein
AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Mawer Investment Management's WAT Position: Q1 2026 in Review

Mawer Investment Management increased its Waters Corp (WAT) stake by 8.1% in Q1 2026, buying an estimated $35.9M and bringing the position to 1,403,627 shares worth $418M. The position accounts for 2.71% of the portfolio, ranked #9.

Mawer Investment Management first reported a position in WAT in Q1 2016 and has held it in 41 quarters since. The position peaked at $493M in Q4 2025. 1,171 funds tracked by Wall St. Rank hold WAT as of Q1 2026.

  • Mawer Investment Management held 1,403,627 shares of Waters Corp worth $418M as of Q1 2026.
  • Mawer Investment Management bought 104,875 Waters Corp shares in Q1 2026, an estimated $35.9M.
  • Waters Corp made up 2.71% of Mawer Investment Management's portfolio in Q1 2026, its #9 holding.
  • Mawer Investment Management first reported a position in Waters Corp in Q1 2016 and has held it in 41 quarters since.
  • Mawer Investment Management's Waters Corp position peaked at $493M in Q4 2025.
  • 1,171 funds tracked by Wall St. Rank held Waters Corp as of Q1 2026.

Based on Mawer Investment Management's 13F filing for Q1 2026, filed 6 May 2026.