Waters Corporation
MX ˙ BMV ˙ US9418481035
SecurityMX:WAT / Waters Corporation
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership257,380 shares
Latest Disclosed Value $ 76,648
Natixis Advisors, L.p. reports 5.10% increase in ownership of WAT / Waters Corporation

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 257,380 shares of Waters Corporation (MX:WAT) valued at $76,648 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 244,898 shares of Waters Corporation. This represents a change in shares of 5.10% 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)
2026-05-13 2026-03-31 13F WATERS COM 941848103 257,380 12,482 5.10 77 -18.28 0.1066
2026-02-10 2025-12-31 13F WATERS COM 941848103 244,898 46,225 23.27 93 57.63 0.1318
2025-11-13 2025-09-30 13F WATERS CORP COM 941848103 198,673 -3,519 -1.74 60 -15.71 0.0869
2025-08-13 2025-06-30 13F WATERS COM 941848103 202,192 29,155 16.85 71 11.11 0.1120
2025-05-08 2025-03-31 13F WATERS COM 941848103 173,037 16,423 10.49 64 8.62 0.1179
2025-02-10 2024-12-31 13F WATERS COM 941848103 156,614 15,622 11.08 58 16.00 0.1086
2024-11-06 2024-09-30 13F WATERS COM 941848103 140,992 58,983 71.92 51 117.39 0.0989
2024-08-01 2024-06-30 13F WATERS COM 941848103 82,009 18,328 28.78 24 9.52 0.0517
2024-04-25 2024-03-31 13F WATERS COM 941848103 63,681 28,416 80.58 22 90.91 0.0504
2024-02-06 2023-12-31 13F WATERS COM 941848103 35,265 2,818 8.68 12 37.50 0.0306
2023-11-13 2023-09-30 13F WATERS COM 941848103 32,447 7,816 31.73 9 33.33 0.0272
2023-08-15 2023-06-30 13F WATERS COM 941848103 24,631 7,410 43.03 7 20.00 0.0203
2023-05-11 2023-03-31 13F WATERS COM 941848103 17,221 -664 -3.71 5 -16.67 0.0183
2023-01-27 2022-12-31 13F WATERS COM 941848103 17,885 898 5.29 6 -99.87 0.0232
2022-11-14 2022-09-30 13F WATERS COM 941848103 16,987 -1,199 -6.59 4,579 -23.92 0.0194
2022-08-12 2022-06-30 13F WATERS COM 941848103 18,186 703 4.02 6,019 10.91 0.0265
2022-05-12 2022-03-31 13F WATERS COM 941848103 17,483 -714 -3.92 5,427 -19.96 0.0207
2022-02-08 2021-12-31 13F WATERS COM 941848103 18,197 785 4.51 6,780 8.99 0.0259
2021-11-15 2021-09-30 13F WATERS COM 941848103 17,412 -1,985 -10.23 6,221 -7.20 0.0256
2021-08-12 2021-06-30 13F WATERS COM 941848103 19,397 -768 -3.81 6,704 17.02 0.0313
2021-05-05 2021-03-31 13F WATERS COM 941848103 20,165 647 3.31 5,729 18.64 0.0299
2021-02-12 2020-12-31 13F WATERS COM 941848103 19,518 1,183 6.45 4,829 34.59 0.0278
2020-11-12 2020-09-30 13F WATERS COM 941848103 18,335 -1,162 -5.96 3,588 2.02 0.0226
2020-08-11 2020-06-30 13F WATERS COM 941848103 19,497 1,789 10.10 3,517 9.09 0.0233
2020-04-27 2020-03-31 13F WATERS COM 941848103 17,708 4,718 36.32 3,224 6.23 0.0263
2020-02-10 2019-12-31 13F WATERS COM 941848103 12,990 -119 -0.91 3,035 3.73 0.0214
2019-11-12 2019-09-30 13F WATERS COM 941848103 13,109 13,109 2,926 0.0232
2016-02-12 2015-12-31 13F WATERS COM 941848103 0 0 0 0.0000
2015-11-12 2015-09-30 13F WATERS COM 941848103 0 0 0 0.0000
2014-11-03 2014-09-30 13F WATERS COM 941848103 0 -4,755 -100.00 0 -100.00
2014-08-13 2014-06-30 13F WATERS COM 941848103 4,755 -61 -1.27 497 -4.79 0.0071
2014-05-13 2014-03-31 13F WATERS COM 941848103 4,816 4,816 522 0.0080
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.