Waters Corporation
MX ˙ BMV ˙ US9418481035
SecurityMX:WAT / Waters Corporation
InstitutionAtlas Brown,Inc.
Latest Disclosed Ownership1,515 shares
Latest Disclosed Value $ 451,167
Atlas Brown,Inc. reports 10.99% increase in ownership of WAT / Waters Corporation

On April 17, 2026 - Atlas Brown,Inc. filed a 13F-HR form disclosing ownership of 1,515 shares of Waters Corporation (MX:WAT) valued at $451,167 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 1,365 shares of Waters Corporation. This represents a change in shares of 10.99% 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)
2026-04-17 2026-03-31 13F WATERS CORP COM Stock 941848103 1,515 150 10.99 451 -12.93 0.1348
2026-01-09 2025-12-31 13F WATERS CORP COM Stock 941848103 1,365 -48 -3.40 518 22.46 0.1541
2025-10-17 2025-09-30 13F WATERS CORP COM Stock 941848103 1,413 0 0.00 424 -14.20 0.1252
2025-07-08 2025-06-30 13F WATERS CORP COM Stock 941848103 1,413 -9 -0.63 493 -5.92 0.1583
2025-04-08 2025-03-31 13F WATERS CORP COM Stock 941848103 1,422 8 0.57 524 0.00 0.1839
2025-01-10 2024-12-31 13F WATERS CORP COM Stock 941848103 1,414 1 0.07 525 3.15 0.1794
2024-10-18 2024-09-30 13F WATERS CORP COM Stock 941848103 1,413 -1 -0.07 509 23.90 0.1762
2024-07-23 2024-06-30 13F WATERS CORP COM Stock 941848103 1,414 2 0.14 410 -15.64 0.1471
2024-04-08 2024-03-31 13F WATERS CORP COM Stock 941848103 1,412 0 0.00 486 4.74 0.1769
2024-01-18 2023-12-31 13F WATERS CORP COM Stock 941848103 1,412 0 0.00 465 19.90 0.1927
2023-10-17 2023-09-30 13F WATERS CORP COM Stock 941848103 1,412 0 0.00 387 2.93 0.1766
2023-07-18 2023-06-30 13F WATERS CORP COM Stock 941848103 1,412 0 0.00 376 -13.96 0.1656
2023-04-21 2023-03-31 13F WATERS CORP COM Stock 941848103 1,412 0 0.00 437 -9.52 0.2015
2023-01-05 2022-12-31 13F WATERS CORP COM Stock 941848103 1,412 -907 -39.11 484 -22.72 0.2377
2022-10-06 2022-09-30 13F WATERS CORP COM Stock 941848103 2,319 -30 -1.28 625 -19.56 0.3184
2022-07-15 2022-06-30 13F WATERS CORP COM Stock 941848103 2,349 0 0.00 777 6.58 0.3672
2022-04-14 2022-03-31 13F WATERS CORP COM Stock 941848103 2,349 0 0.00 729 -16.69 0.2973
2022-01-18 2021-12-31 13F WATERS CORP COM Stock 941848103 2,349 0 0.00 875 4.29 0.3390
2021-10-14 2021-09-30 13F WATERS CORP COM Stock 941848103 2,349 0 0.00 839 3.33 0.3646
2021-07-19 2021-06-30 13F WATERS CORP COM Stock 941848103 2,349 0 0.00 812 21.56 0.3510
2021-04-13 2021-03-31 13F WATERS CORP COM Stock 941848103 2,349 0 0.00 668 14.97 0.3165
2021-01-19 2020-12-31 13F WATERS CORP COM Stock 941848103 2,349 0 0.00 581 26.30 0.3005
2020-10-15 2020-09-30 13F WATERS CORP COM Stock 941848103 2,349 0 0.00 460 8.49 0.2721
2020-07-21 2020-06-30 13F WATERS CORP COM Stock 941848103 2,349 0 0.00 424 -0.93 0.2690
2020-04-16 2020-03-31 13F WATERS CORP COM Stock 941848103 2,349 0 0.00 428 -22.04 0.3344
2020-01-14 2019-12-31 13F WATERS CORP COM Stock 941848103 2,349 30 1.29 549 5.98 0.3434
2019-10-29 2019-09-30 13F WATERS CORP COM Stock 941848103 2,319 0 0.00 518 3.81 0.3699
2019-07-24 2019-06-30 13F WATERS CORP COM Stock 941848103 2,319 0 0.00 499 -14.55 0.3448
2019-04-12 2019-03-31 13F WATERS CORP COM Stock 941848103 2,319 0 0.00 584 33.64 0.4136
2019-01-28 2018-12-31 13F WATERS CORP COM Stock 941848103 2,319 -1,050 -31.17 437 -33.38 0.3370
2018-10-26 2018-09-30 13F WATERS CORP COM Stock 941848103 3,369 0 0.00 656 -2.67 0.4029
2018-07-11 2018-06-30 13F WATERS CORP COM Stock 941848103 3,369 0 0.00 674 0.75 0.1572
2018-04-17 2018-03-31 13F WATERS CORP COM COM 941848103 3,369 0 0.00 669 -7.34 0.1217
2018-01-25 2017-12-31 13F WATERS CORP COM Stock 941848103 3,369 0 0.00 722 19.34 0.1289
2017-10-12 2017-09-30 13F WATERS CORP COM Stock 941848103 3,369 0 0.00 605 -2.26 0.1285
2017-07-18 2017-06-30 13F WATERS CORP COM Stock 941848103 3,369 0 0.00 619 17.46 0.5419
2017-04-06 2017-03-31 13F WATERS CORP COM Stock 941848103 3,369 0 0.00 527 -1.31 0.4160
2017-02-01 2016-12-31 13F WATERS CORP COM COM 941848103 3,369 0 0.00 534 0.00 0.2200
2016-10-19 2016-09-30 13F WATERS CORP COM Stock 941848103 3,369 0 0.00 534 12.66 0.2200
2016-07-28 2016-06-30 13F WATERS CORP COM Stock 941848103 3,369 0 0.00 474 6.76 0.1920
2016-04-11 2016-03-31 13F WATERS CORP COM Stock 941848103 3,369 0 0.00 444 8.82 0.1858
2016-01-28 2015-12-31 13F WATERS CORP COM Stock 941848103 3,369 0 0.00 408 2.51 0.2597
2015-11-05 2015-09-30 13F WATERS CORP COM Stock 941848103 3,369 0 0.00 398 -11.75 0.1713
2015-08-11 2015-06-30 13F WATERS CORP COM Stock 941848103 3,369 -275 -7.55 451 -0.44 0.1754
2015-04-20 2015-03-31 13F Waters COM 941848103 3,644 3,644 0.00 453 0.1217
2015-01-30 2014-12-31 13F Waters COM 941848103 0 -4,234 -100.00 0 -100.00
2014-11-12 2014-09-30 13F Waters COM 941848103 4,234 275 6.95 420 1.69 0.1557
2014-08-19 2014-06-30 13F Waters COM 941848103 3,959 797 25.21 413 20.41 0.2040
2014-05-07 2014-03-31 13F Waters COM 941848103 3,162 -1,007 -24.15 343 -17.75 0.1848
2014-01-24 2013-12-31 13F Waters COM 941848103 4,169 -550 -11.66 417 -16.77 0.2919
2013-10-31 2013-09-30 13F Waters COM 941848103 4,719 -2,930 -38.31 501 -34.51 0.3754
2013-08-21 2013-06-30 13F Waters COM 941848103 7,649 7,649 765 0.1634
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.