Waters Corporation
MX ˙ BMV ˙ US9418481035
SecurityMX:WAT / Waters Corporation
InstitutionRockefeller Capital Management L.P.
Latest Disclosed Ownership4,996 shares
Latest Disclosed Value $ 1,487,809
Rockefeller Capital Management L.P. reports 81.61% increase in ownership of WAT / Waters Corporation

On May 14, 2026 - Rockefeller Capital Management L.P. filed a 13F-HR form disclosing ownership of 4,996 shares of Waters Corporation (MX:WAT) valued at $1,487,809 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 16, 2026 disclosing 2,751 shares of Waters Corporation. This represents a change in shares of 81.61% 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)
2026-05-14 2026-03-31 13F WATERS COM 941848103 4,996 2,245 81.61 1,488 42.43 0.0014
2026-03-16 2025-12-31 13F/A-1 WATERS COM 941848103 2,751 1,420 106.69 1,045 161.65 0.0019
2026-02-14 2025-12-31 13F WATERS COM 941848103 2,751 1,420 1,045 0.0010
2025-11-14 2025-09-30 13F WATERS COM 941848103 1,331 1,331 399 0.0008
2023-08-14 2023-06-30 13F WATERS COM 941848103 0 -1,235 -100.00 0 0.0000
2023-05-16 2023-03-31 13F WATERS COM 941848103 1,235 87 7.58 0 -100.00 0.0016
2023-03-06 2022-12-31 13F WATERS COM 941848103 1,148 -49 -4.09 393 22.05 0.0020
2022-11-02 2022-09-30 13F WATERS COM 941848103 1,197 477 66.25 322 35.29 0.0017
2022-08-12 2022-06-30 13F WATERS COM 941848103 720 -104 -12.62 238 -6.67 0.0013
2022-05-13 2022-03-31 13F WATERS COM 941848103 824 147 21.71 255 1.59 0.0012
2022-02-14 2021-12-31 13F WATERS COM 941848103 677 -939 -58.11 251 -56.50 0.0012
2021-11-12 2021-09-30 13F WATERS COM 941848103 1,616 168 11.60 577 15.40 0.0030
2021-08-10 2021-06-30 13F WATERS COM 941848103 1,448 -3,178 -68.70 500 -61.92 0.0028
2021-05-11 2021-03-31 13F WATERS COM 941848103 4,626 25 0.54 1,313 15.48 0.0089
2021-02-12 2020-12-31 13F WATERS COM 941848103 4,601 5 0.11 1,137 26.61 0.0086
2020-11-13 2020-09-30 13F WATERS COM 941848103 4,596 470 11.39 898 20.70 0.0084
2020-08-12 2020-06-30 13F WATERS COM 941848103 4,126 -9 -0.22 744 -1.20 0.0078
2020-05-12 2020-03-31 13F WATERS COM 941848103 4,135 39 0.95 753 -21.32 0.0099
2020-02-07 2019-12-31 13F WATERS COM 941848103 4,096 -445 -9.80 957 -5.62 0.0119
2019-11-12 2019-09-30 13F WATERS COM 941848103 4,541 5 0.11 1,014 3.79 0.0138
2019-08-09 2019-06-30 13F WATERS COM 941848103 4,536 -61 -1.33 977 -15.56 0.0136
2019-05-10 2019-03-31 13F WATERS COM 941848103 4,597 -21 -0.45 1,157 32.84 0.0165
2019-02-12 2018-12-31 13F WATERS COM 941848103 4,618 3,158 216.30 871 205.61 0.0153
2018-11-02 2018-09-30 13F Waters Common 941848103 1,460 90 6.57 285 7.55 0.0043
2018-07-31 2018-06-30 13F Waters Common 941848103 1,370 0 0.00 265 -2.57 0.0043
2018-05-09 2018-03-31 13F Waters Common 941848103 1,370 1,370 272 0.0045
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.