Waters Corporation
US ˙ NYSE ˙ US9418481035

SecurityWAT / Waters Corporation
InstitutionMackenzie Financial Corp
Latest Disclosed Ownership145,950 shares
Latest Disclosed Value $ 43,463,910
Mackenzie Financial Corp reports 13.04% increase in ownership of WAT / Waters Corporation

On May 13, 2026 - Mackenzie Financial Corp filed a 13F-HR form disclosing ownership of 145,950 shares of Waters Corporation (US:WAT) valued at $43,463,910 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 18, 2026 disclosing 129,108 shares of Waters Corporation. This represents a change in shares of 13.04% during the quarter. The current value of the position is $55,427,432 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F WATERS COM 941848103 145,950 16,842 13.04 43,464 -12.16 0.0522
2026-02-18 2025-12-31 13F WATERS COM 941848103 129,108 -102,744 -44.31 49,479 -28.82 0.0586
2025-11-13 2025-09-30 13F WATERS COM 941848103 231,852 25,182 12.18 69,512 -3.64 0.0842
2025-08-13 2025-06-30 13F WATERS COM 941848103 206,670 96,506 87.60 72,136 77.66 0.0935
2025-05-07 2025-03-31 13F WATERS COM 941848103 110,164 -27,485 -19.97 40,603 -20.49 0.0577
2025-05-02 2024-12-31 13F/A-2 WATERS COM 941848103 137,649 -71,579 -34.21 51,065 -32.18 0.0696
2025-02-20 2024-12-31 13F/A-1 WATERS COM 941848103 137,649 -71,579 51,065 0.0664
2025-02-14 2024-12-31 13F Waters Common Stock 941848103 137,649 -71,579 20,612 0.0296
2024-11-13 2024-09-30 13F WATERS COM 941848103 209,228 -310 -0.15 75,299 23.87 0.1048
2024-08-14 2024-06-30 13F WATERS COM 941848103 209,538 14,949 7.68 60,791 -9.24 0.0903
2024-05-10 2024-03-31 13F WATERS COM 941848103 194,589 3,087 1.61 66,983 6.24 0.0965
2024-01-30 2023-12-31 13F WATERS COM 941848103 191,502 18,959 10.99 63,048 37.89 0.0951
2023-10-25 2023-09-30 13F WATERS COM 941848103 172,543 -246 -0.14 45,726 -0.05 0.0769
2023-08-03 2023-06-30 13F WATERS COM 941848103 172,789 165,948 2,425.79 45,749 2,060.01 0.0694
2023-04-24 2023-03-31 13F WATERS COM 941848103 6,841 -6,297 -47.93 2,118 -52.93 0.0033
2023-02-14 2022-12-31 13F WATERS COM 941848103 13,138 1,199 10.04 4,501 39.84 0.0075
2022-10-07 2022-09-30 13F Waters Common Stock 941848103 11,939 3,444 40.54 3,218 14.44 0.0055
2022-08-10 2022-06-30 13F WATERS COM 941848103 8,495 1,819 27.25 2,812 35.71 0.0045
2022-05-13 2022-03-31 13F WATERS COM 941848103 6,676 55 0.83 2,072 -16.01 0.0028
2022-02-14 2021-12-31 13F WATERS COM 941848103 6,621 -38 -0.57 2,467 3.70 0.0033
2021-11-08 2021-09-30 13F WATERS COM 941848103 6,659 2,921 78.14 2,379 84.13 0.0034
2021-08-11 2021-06-30 13F WATERS COM 941848103 3,738 -236,118 -98.44 1,292 -98.10 0.0018
2021-05-14 2021-03-31 13F WATERS COM 941848103 239,856 -355,019 -59.68 68,160 -53.69 0.1039
2021-02-10 2020-12-31 13F WATERS COM 941848103 594,875 1,631 0.27 147,184 26.79 0.3178
2020-11-13 2020-09-30 13F WATERS COM 941848103 593,244 -28,120 -4.53 116,086 3.56 0.2884
2020-08-13 2020-06-30 13F WATERS COM 941848103 621,364 114,863 22.68 112,094 21.57 0.3000
2020-05-14 2020-03-31 13F WATERS COM 941848103 506,501 -114,440 -18.43 92,209 -36.44 0.2965
2020-02-13 2019-12-31 13F WATERS COM 941848103 620,941 388 0.06 145,083 4.73 0.3569
2019-11-14 2019-09-30 13F WATERS COM 941848103 620,553 -17,522 -2.75 138,526 0.86 0.3640
2019-08-23 2019-06-30 13F/A-1 WATERS COM 941848103 638,075 457,218 252.81 137,339 201.68 0.3543
2019-08-14 2019-06-30 13F WATERS COM 941848103 638,075 457,218 137,339
2019-05-15 2019-03-31 13F WATERS COM 941848103 180,857 -116,025 -39.08 45,524 -18.72 0.1098
2019-02-06 2018-12-31 13F WATERS COM 941848103 296,882 -74,323 -20.02 56,007 -22.50 0.1472
2018-11-15 2018-09-30 13F WATERS COM 941848103 371,205 -122,940 -24.88 72,266 -24.46 0.1758
2018-08-13 2018-06-30 13F WATERS COM 941848103 494,145 -14,694 -2.89 95,662 -5.36 0.2441
2018-05-14 2018-03-31 13F/A-1 WATERS COM 941848103 508,839 -245,714 -32.56 101,081 -30.66 0.2576
2018-05-14 2018-03-31 13F WATERS COM 941848103 508,839 101,081
2018-02-13 2017-12-31 13F WATERS COM 941848103 754,553 103,153 15.84 145,772 24.66 0.3519
2017-11-13 2017-09-30 13F WATERS COM 941848103 651,400 398,438 157.51 116,939 151.45 0.6306
2017-08-14 2017-06-30 13F WATERS COM 941848103 252,962 4,769 1.92 46,505 19.87 0.2589
2017-05-25 2017-03-31 13F/A-1 WATERS COM 941848103 248,193 2,825 1.15 38,795 17.65 0.2269
2017-05-12 2017-03-31 13F WATERS COM 941848103 248,193 38,795
2017-02-14 2016-12-31 13F WATERS COM 941848103 245,368 -10,380 -4.06 32,975 -18.65 0.1975
2016-11-15 2016-09-30 13F WATERS COM 941848103 255,748 -150,552 -37.05 40,534 -29.07 0.2531
2016-08-12 2016-06-30 13F WATERS COM 941848103 406,300 52,701 14.90 57,146 22.51 0.3228
2016-05-12 2016-03-31 13F WATERS COM 941848103 353,599 88,812 33.54 46,647 30.90 0.4231
2016-02-12 2015-12-31 13F WATERS COM 941848103 264,787 8,900 3.48 35,635 17.81 0.2211
2015-11-13 2015-09-30 13F WATERS COM 941848103 255,887 19,119 8.07 30,248 -0.49 0.1835
2015-08-13 2015-06-30 13F WATERS COM 941848103 236,768 6,600 2.87 30,396 6.23 0.1648
2015-05-13 2015-03-31 13F WATERS COM 941848103 230,168 109,424 90.62 28,614 110.24 0.1508
2015-02-11 2014-12-31 13F WATERS COM 941848103 120,744 120,744 13,610 0.0694
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.