Waters Corporation
MX ˙ BMV ˙ US9418481035
SecurityMX:WAT / Waters Corporation
InstitutionQuantinno Capital Management LP
Latest Disclosed Ownership72,709 shares
Latest Disclosed Value $ 21,652,790
Quantinno Capital Management LP reports 8.43% increase in ownership of WAT / Waters Corporation

On May 15, 2026 - Quantinno Capital Management LP filed a 13F-HR form disclosing ownership of 72,709 shares of Waters Corporation (MX:WAT) valued at $21,652,790 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 67,057 shares of Waters Corporation. This represents a change in shares of 8.43% 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)
2026-05-15 2026-03-31 13F WATERS COM 941848103 72,709 5,652 8.43 21,653 -14.99 0.0361
2026-02-17 2025-12-31 13F WATERS COM 941848103 67,057 18,736 38.77 25,471 75.81 0.0512
2025-11-14 2025-09-30 13F WATERS COM 941848103 48,321 14,978 44.92 14,487 24.48 0.0395
2025-08-14 2025-06-30 13F WATERS COM 941848103 33,343 -9,410 -22.01 11,638 -26.14 0.0503
2025-05-12 2025-03-31 13F WATERS COM 941848103 42,753 13,042 43.90 15,758 42.96 0.1026
2025-02-14 2024-12-31 13F WATERS COM 941848103 29,711 4,916 19.83 11,022 23.52 0.1084
2024-11-14 2024-09-30 13F WATERS COM 941848103 24,795 708 2.94 8,923 27.69 0.1160
2024-08-14 2024-06-30 13F WATERS COM 941848103 24,087 324 1.36 6,988 -14.57 0.1257
2024-05-14 2024-03-31 13F WATERS COM 941848103 23,763 15,268 179.73 8,180 192.46 0.1778
2024-02-14 2023-12-31 13F WATERS COM 941848103 8,495 141 1.69 2,797 22.09 0.0979
2023-11-14 2023-09-30 13F WATERS COM 941848103 8,354 2,556 44.08 2,291 48.28 0.1043
2023-08-04 2023-06-30 13F WATERS COM 941848103 5,798 -1,351 -18.90 1,545 -30.22 0.0882
2023-05-03 2023-03-31 13F WATERS COM 941848103 7,149 -592 -7.65 2,214 -16.52 0.1464
2023-02-13 2022-12-31 13F WATERS COM 941848103 7,741 1,384 21.77 2,652 54.82 0.1978
2022-11-08 2022-09-30 13F WATERS COM 941848103 6,357 190 3.08 1,713 -16.07 0.2206
2022-08-15 2022-06-30 13F WATERS COM 941848103 6,167 553 9.85 2,041 17.10 0.2944
2022-05-12 2022-03-31 13F WATERS COM 941848103 5,614 -56 -0.99 1,743 -17.51 0.2658
2022-02-14 2021-12-31 13F WATERS COM 941848103 5,670 4,221 291.30 2,113 307.92 0.3826
2021-11-15 2021-09-30 13F WATERS COM 941848103 1,449 18 1.26 518 4.65 0.5783
2021-08-16 2021-06-30 13F WATERS COM 941848103 1,431 0 0.00 495 21.62 0.5612
2021-05-17 2021-03-31 13F WATERS COM 941848103 1,431 0 0.00 407 14.97 0.4436
2021-02-09 2020-12-31 13F WATERS COM 941848103 1,431 -466 -24.57 354 -4.58 0.2737
2020-11-16 2020-09-30 13F WATERS COM 941848103 1,897 -46 -2.37 371 5.70 0.2481
2020-08-14 2020-06-30 13F WATERS COM 941848103 1,943 797 69.55 351 67.94 0.3461
2020-05-15 2020-03-31 13F WATERS COM 941848103 1,146 153 15.41 209 -9.91 0.1305
2020-02-14 2019-12-31 13F WATERS COM 941848103 993 993 232 0.1460
2019-08-14 2019-06-30 13F WATERS COM 941848103 0 -1,887 -100.00 0 -100.00
2019-05-14 2019-03-31 13F WATERS COM 941848103 1,887 -98 -4.94 475 27.01 0.3043
2019-02-14 2018-12-31 13F WATERS COM 941848103 1,985 1,985 374 0.3046
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.