Waters Corporation
US ˙ NYSE ˙ US9418481035

SecurityWAT / Waters Corporation
InstitutionParallel Advisors, LLC
Latest Disclosed Ownership606 shares
Latest Disclosed Value $ 230,443
Parallel Advisors, LLC reports 9.82% decrease in ownership of WAT / Waters Corporation

On February 11, 2026 - Parallel Advisors, LLC filed a 13F-HR form disclosing ownership of 606 shares of Waters Corporation (US:WAT) valued at $230,177 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 672 shares of Waters Corporation. This represents a change in shares of -9.82% during the quarter. The current value of the position is $230,141 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)
2026-02-11 2025-12-31 13F WATERS CP Stock 941848103 606 -66 -9.82 230 14.43 0.0042
2025-11-13 2025-09-30 13F WATERS CP Stock 941848103 672 -177 -20.85 201 -32.09 0.0037
2025-07-08 2025-06-30 13F WATERS CP Stock 941848103 849 43 5.33 296 -0.34 0.0059
2025-04-08 2025-03-31 13F WATERS CP Stock 941848103 806 -50 -5.84 297 -6.31 0.0067
2025-02-10 2024-12-31 13F WATERS CP Stock 941848103 856 136 18.89 318 22.39 0.0071
2024-11-13 2024-09-30 13F WATERS CP Stock 941848103 720 108 17.65 259 46.33 0.0061
2024-08-08 2024-06-30 13F WATERS CP Stock 941848103 612 160 35.40 178 14.19 0.0045
2024-05-06 2024-03-31 13F WATERS CP Stock 941848103 452 7 1.57 156 6.16 0.0042
2024-02-12 2023-12-31 13F WATERS CP Stock 941848103 445 -69 -13.42 147 4.29 0.0043
2024-05-20 2023-09-30 13F/A-1 WATERS CP Stock 941848103 514 18 3.63 141 6.06 0.0047
2023-11-14 2023-09-30 13F WATERS CP Stock 941848103 514 18 141 0.0047
2024-05-20 2023-06-30 13F/A-1 WATERS CP Stock 941848103 496 16 3.33 132 -10.81 0.0043
2023-08-04 2023-06-30 13F WATERS CP Stock 941848103 496 16 132 0.0043
2024-05-20 2023-03-31 13F/A-1 WATERS CP Stock 941848103 480 246 105.13 149 85.00 0.0050
2023-04-25 2023-03-31 13F WATERS CP Stock 941848103 480 246 149 0.0050
2023-02-06 2022-12-31 13F WATERS CP Stock 941848103 234 10 4.46 80 33.33 0.0035
2022-11-10 2022-09-30 13F WATERS CP Stock 941848103 224 -114 -33.73 60 -46.43 0.0028
2022-08-01 2022-06-30 13F WATERS CP Stock 941848103 338 -162 -32.40 112 -30.43 0.0051
2022-04-28 2022-03-31 13F WATERS CP Stock 941848103 500 58 13.12 161 -2.42 0.0064
2022-01-20 2021-12-31 13F WATERS CP Stock 941848103 442 2 0.45 165 5.10 0.0061
2021-11-02 2021-09-30 13F/A-1 WATERS CP Stock 941848103 440 16 3.77 157 6.80 0.0063
2021-10-22 2021-09-30 13F WATERS CP Stock 941848103 424 0 147 0.0062
2021-08-06 2021-06-30 13F WATERS CP Stock 941848103 424 48 12.77 147 37.38 0.0062
2021-04-23 2021-03-31 13F WATERS CP Stock 941848103 376 245 187.02 107 234.38 0.0050
2021-02-02 2020-12-31 13F WATERS CP Stock 941848103 131 -33 -20.12 32 0.00 0.0017
2020-10-27 2020-09-30 13F WATERS CP Stock 941848103 164 -20 -10.87 32 -3.03 0.0020
2020-07-16 2020-06-30 13F WATERS CP Stock 941848103 184 -130 -41.40 33 -42.11 0.0022
2020-04-27 2020-03-31 13F WATERS CP Stock 941848103 314 -359 -53.34 57 -63.69 0.0046
2020-01-30 2019-12-31 13F WATERS CP Stock 941848103 673 553 460.83 157 481.48 0.0118
2019-11-01 2019-09-30 13F WATERS CP Stock 941848103 120 0 0.00 27 3.85 0.0023
2019-08-05 2019-06-30 13F WATERS CP Stock 941848103 120 -285 -70.37 26 -74.51 0.0025
2019-05-01 2019-03-31 13F WATERS CP Stock 941848103 405 300 285.71 102 436.84 0.0114
2019-02-05 2018-12-31 13F WATERS CP Stock 941848103 105 -41 -28.08 19 -32.14 0.0026
2018-11-01 2018-09-30 13F WATERS CP Stock 941848103 146 -36 -19.78 28 -20.00 0.0035
2018-07-30 2018-06-30 13F WATERS CP Stock 941848103 182 -2,146 -92.18 35 -92.42 0.0050
2018-05-08 2018-03-31 13F WATERS CP Stock 941848103 2,328 -160 -6.43 462 -3.95 0.0722
2018-02-13 2017-12-31 13F WATERS CORP COM Stock 941848103 2,488 -100 -3.86 481 -4.56 0.0787
2017-11-15 2017-09-30 13F/A-1 WATERS CORP COM Stock 941848103 2,588 113 4.57 504 17.48 0.0867
2017-08-07 2017-06-30 13F WATERS CORP COM Stock 941848103 2,475 643 35.10 429 35.76 0.0809
2017-05-12 2017-03-31 13F/A-1 WATERS CORP COM Stock 941848103 1,832 518 39.42 316 78.53 0.0628
2017-05-12 2017-03-31 13F WATERS CORP COM Stock 941848103 1,832 316
2017-02-14 2016-12-31 13F WATERS CORP COM Stock 941848103 1,314 1,314 177 0.0416
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.