Waters Corporation
MX ˙ BMV ˙ US9418481035
SecurityMX:WAT / Waters Corporation
InstitutionM&t Bank Corp
Latest Disclosed Ownership10,052 shares
Latest Disclosed Value $ 2,993,487
M&t Bank Corp reports 138.26% increase in ownership of WAT / Waters Corporation

On May 12, 2026 - M&t Bank Corp filed a 13F-HR form disclosing ownership of 10,052 shares of Waters Corporation (MX:WAT) valued at $2,993,487 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on January 30, 2026 disclosing 4,219 shares of Waters Corporation. This represents a change in shares of 138.26% during the quarter.

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)
2026-05-12 2026-03-31 13F WATERS COM 941848103 10,052 5,833 138.26 2,993 86.83 0.0024
2026-01-30 2025-12-31 13F/A-1 WATERS COM 941848103 4,219 572 15.68 1,602 46.57 0.0051
2026-01-28 2025-12-31 13F WATERS COM 941848103 64,273 60,626 5,016 0.0030
2025-11-14 2025-09-30 13F WATERS COM 941848103 3,647 -680 -15.72 1,093 -27.62 0.0037
2025-08-13 2025-06-30 13F WATERS COM 941848103 4,327 -727 -14.38 1,510 -18.90 0.0052
2025-04-30 2025-03-31 13F WATERS COM 941848103 5,054 -565 -10.06 1,863 -10.65 0.0068
2025-02-06 2024-12-31 13F WATERS COM 941848103 5,619 -90 -1.58 2,085 1.46 0.0070
2024-11-19 2024-09-30 13F/A-1 WATERS COM 941848103 5,709 1,485 35.16 2,055 67.67 0.0068
2024-11-15 2024-09-30 13F WATERS COM 941848103 5,709 1,485 2,055 0.0012
2024-07-31 2024-06-30 13F WATERS COM 941848103 4,224 11 0.26 1,226 -15.52 0.0042
2024-05-07 2024-03-31 13F WATERS COM 941848103 4,213 -208 -4.70 1,451 -0.34 0.0050
2024-02-06 2023-12-31 13F WATERS COM 941848103 4,421 -230 -4.95 1,455 14.12 0.0053
2023-11-02 2023-09-30 13F WATERS COM 941848103 4,651 202 4.54 1,275 7.50 0.0051
2023-08-09 2023-06-30 13F WATERS COM 941848103 4,449 318 7.70 1,186 -7.20 0.0044
2023-05-11 2023-03-31 13F WATERS COM 941848103 4,131 -35 -0.84 1,279 -10.38 0.0050
2023-02-13 2022-12-31 13F/A-1 WATERS COM 941848103 4,166 -20 -0.48 1,427 26.42 0.0057
2023-02-13 2022-12-31 13F WASTE MGMT INC DEL COM 941848103 3,158 -1,028 1,080 0.0043
2022-11-17 2022-09-30 13F/A-1 WATERS COM 941848103 4,186 -101 -2.36 1,128 -11.39 0.0050
2022-11-14 2022-09-30 13F WATERS COM 941848103 4,186 -101 1,068 0.0009
2022-08-05 2022-06-30 13F WATERS COM 941848103 4,287 938 28.01 1,273 22.64 0.0060
2022-05-09 2022-03-31 13F WATERS COM 941848103 3,349 41 1.24 1,038 -15.82 0.0046
2022-02-07 2021-12-31 13F WATERS COM 941848103 3,308 -91 -2.68 1,233 1.48 0.0052
2021-10-28 2021-09-30 13F WATERS COM 941848103 3,399 0 0.00 1,215 3.49 0.0055
2021-08-13 2021-06-30 13F WATERS COM 941848103 3,399 -139 -3.93 1,174 16.70 0.0052
2021-05-06 2021-03-31 13F WATERS COM 941848103 3,538 -419 -10.59 1,006 2.65 0.0043
2021-02-12 2020-12-31 13F WATERS COM 941848103 3,957 878 28.52 980 62.52 0.0043
2020-11-06 2020-09-30 13F WATERS COM 941848103 3,079 -144 -4.47 603 3.79 0.0030
2020-07-29 2020-06-30 13F WATERS COM 941848103 3,223 -69 -2.10 581 -3.01 0.0031
2020-05-14 2020-03-31 13F WATERS COM 941848103 3,292 -413 -11.15 599 -30.83 0.0035
2020-02-07 2019-12-31 13F WATERS COM 941848103 3,705 -329 -8.16 866 -3.78 0.0041
2019-11-12 2019-09-30 13F WATERS COM 941848103 4,034 51 1.28 900 5.02 0.0045
2019-08-12 2019-06-30 13F WATERS COM 941848103 3,983 -264 -6.22 857 -19.83 0.0045
2019-05-15 2019-03-31 13F WATERS COM 941848103 4,247 -325 -7.11 1,069 24.01 0.0056
2019-02-01 2018-12-31 13F WATERS COM 941848103 4,572 -53 -1.15 862 -4.22 0.0049
2018-11-09 2018-09-30 13F WATERS COM 941848103 4,625 0 0.00 900 0.56 0.0045
2018-08-10 2018-06-30 13F WATERS COM 941848103 4,625 -105 -2.22 895 -4.69 0.0048
2018-05-04 2018-03-31 13F WATERS COM 941848103 4,730 -167 -3.41 939 -0.84 0.0050
2018-02-06 2017-12-31 13F WATERS COM 941848103 4,897 -211 -4.13 947 3.16 0.0050
2017-11-13 2017-09-30 13F WATERS COM 941848103 5,108 -30 -0.58 918 -2.96 0.0050
2017-08-11 2017-06-30 13F WATERS COM 941848103 5,138 -409 -7.37 946 9.11 0.0056
2017-05-10 2017-03-31 13F WATERS COM 941848103 5,547 -816 -12.82 867 1.29 0.0052
2017-02-14 2016-12-31 13F WATERS COM 941848103 6,363 -285 -4.29 856 -18.79 0.0053
2016-11-04 2016-09-30 13F WATERS COM 941848103 6,648 -2,729 -29.10 1,054 -20.09 0.0067
2016-08-04 2016-06-30 13F WATERS COM 941848103 9,377 1,363 17.01 1,319 24.67 0.0089
2016-05-11 2016-03-31 13F WATERS COM 941848103 8,014 -1,408 -14.94 1,058 -16.56 0.0072
2016-02-12 2015-12-31 13F WATERS COM 941848103 9,422 1,038 12.38 1,268 27.82 0.0084
2015-11-13 2015-09-30 13F WATERS COM 941848103 8,384 811 10.71 992 2.06 0.0068
2015-08-14 2015-06-30 13F WATERS COM 941848103 7,573 -530 -6.54 972 -3.48 0.0059
2015-05-14 2015-03-31 13F WATERS COM 941848103 8,103 -1,336 -14.15 1,007 -5.27 0.0063
2015-02-12 2014-12-31 13F WATERS COM 941848103 9,439 1,624 20.78 1,063 37.16 0.0067
2014-11-14 2014-09-30 13F WATERS COM 941848103 7,815 5,615 255.23 775 236.96 0.0054
2014-08-13 2014-06-30 13F WATERS CORP COMMON COMMON 941848103 2,200 0 0.00 230 -3.77 0.0096
2014-05-14 2014-03-31 13F WATERS CORP COMMON COMMON STOCK 941848103 2,200 0 0.00 239 8.64 0.0099
2014-02-12 2013-12-31 13F WATERS CORP COMMON COMMON STOCK 941848103 2,200 0 0.00 220 -5.98 0.0092
2013-11-13 2013-09-30 13F WATERS CORP COMMON COMMON STOCK 941848103 2,200 0 0.00 234 6.36 0.0112
2013-07-30 2013-06-30 13F WATERS CORP COMMON COMMON STOCK 941848103 2,200 2,200 220 0.0107
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.