Waters Corporation
MX ˙ BMV ˙ US9418481035
SecurityMX:WAT / Waters Corporation
InstitutionArgyle Capital Management Inc.
Latest Disclosed Ownership7,595 shares
Latest Disclosed Value $ 2,261,791
Argyle Capital Management Inc. reports 0.60% increase in ownership of WAT / Waters Corporation

On April 28, 2026 - Argyle Capital Management Inc. filed a 13F-HR form disclosing ownership of 7,595 shares of Waters Corporation (MX:WAT) valued at $2,261,791 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 7,550 shares of Waters Corporation. This represents a change in shares of 0.60% 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)
2026-04-28 2026-03-31 13F Waters COM 941848103 7,595 45 0.60 2,262 -21.14 0.7350
2026-01-29 2025-12-31 13F Waters COM 941848103 7,550 0 0.00 2,868 26.69 0.9575
2025-10-27 2025-09-30 13F Waters COM 941848103 7,550 0 0.00 2,264 -14.12 0.7827
2025-07-24 2025-06-30 13F Waters COM 941848103 7,550 -200 -2.58 2,635 -7.74 0.9555
2025-04-29 2025-03-31 13F Waters COM 941848103 7,750 0 0.00 2,856 -0.66 1.0610
2025-02-05 2024-12-31 13F Waters COM 941848103 7,750 0 0.00 2,875 3.08 1.1327
2024-10-25 2024-09-30 13F Waters COM 941848103 7,750 -400 -4.91 2,789 17.98 1.1104
2024-07-29 2024-06-30 13F Waters COM 941848103 8,150 -1,050 -11.41 2,364 -25.33 0.9730
2024-04-29 2024-03-31 13F Waters COM 941848103 9,200 -200 -2.13 3,167 2.33 1.2255
2024-02-05 2023-12-31 13F Waters COM 941848103 9,400 -400 -4.08 3,095 15.15 1.2825
2023-10-26 2023-09-30 13F Waters COM 941848103 9,800 0 0.00 2,687 2.87 0.9843
2023-07-27 2023-06-30 13F Waters COM 941848103 9,800 -1,900 -16.24 2,612 -27.89 0.9415
2023-04-27 2023-03-31 13F Waters COM 941848103 11,700 -300 -2.50 3,623 -11.87 1.2734
2023-02-06 2022-12-31 13F Waters COM 941848103 12,000 -100 -0.83 4,111 26.03 1.4133
2022-10-21 2022-09-30 13F Waters COM 941848103 12,100 0 0.00 3,261 -18.58 1.2702
2022-07-20 2022-06-30 13F Waters COM 941848103 12,100 0 0.00 4,005 6.63 1.4363
2022-04-27 2022-03-31 13F Waters COM 941848103 12,100 -1,000 -7.63 3,756 -23.05 1.2222
2022-01-25 2021-12-31 13F Waters COM 941848103 13,100 -400 -2.96 4,881 1.18 1.5231
2021-10-25 2021-09-30 13F Waters COM 941848103 13,500 -215 -1.57 4,824 1.77 1.5975
2021-07-27 2021-06-30 13F Waters COM 941848103 13,715 -35 -0.25 4,740 21.32 1.5317
2021-04-27 2021-03-31 13F Waters COM 941848103 13,750 0 0.00 3,907 14.84 1.3166
2021-01-28 2020-12-31 13F Waters COM 941848103 13,750 -150 -1.08 3,402 25.07 1.2661
2020-10-27 2020-09-30 13F Waters COM 941848103 13,900 0 0.00 2,720 8.45 1.1140
2020-07-22 2020-06-30 13F Waters COM 941848103 13,900 0 0.00 2,508 -0.87 1.0520
2020-04-27 2020-03-31 13F Waters COM 941848103 13,900 0 0.00 2,530 -22.11 1.1952
2020-01-24 2019-12-31 13F Waters COM 941848103 13,900 0 0.00 3,248 4.67 1.1532
2019-10-25 2019-09-30 13F Waters COM 941848103 13,900 -425 -2.97 3,103 0.65 1.1728
2019-07-25 2019-06-30 13F Waters COM 941848103 14,325 -100 -0.69 3,083 -15.09 1.1698
2019-04-24 2019-03-31 13F Waters COM 941848103 14,425 -2,550 -15.02 3,631 13.40 1.3956
2019-01-28 2018-12-31 13F Waters COM 941848103 16,975 -150 -0.88 3,202 -3.96 1.3560
2018-10-26 2018-09-30 13F Waters COM 941848103 17,125 0 0.00 3,334 0.57 1.2478
2018-08-14 2018-06-30 13F Waters COM 941848103 17,125 -175 -1.01 3,315 -3.55 1.3145
2018-04-25 2018-03-31 13F Waters COM 941848103 17,300 0 0.00 3,437 2.84 1.3625
2018-01-25 2017-12-31 13F Waters COM 941848103 17,300 -800 -4.42 3,342 2.86 1.2519
2017-10-26 2017-09-30 13F Waters COM 941848103 18,100 -200 -1.09 3,249 -3.42 1.2749
2017-07-26 2017-06-30 13F Waters COM 941848103 18,300 0 0.00 3,364 17.62 1.3659
2017-04-26 2017-03-31 13F Waters COM 941848103 18,300 0 0.00 2,860 16.31 1.1674
2017-01-27 2016-12-31 13F Waters COM 941848103 18,300 -400 -2.14 2,459 -17.04 1.0454
2016-10-24 2016-09-30 13F Waters COM 941848103 18,700 0 0.00 2,964 12.70 1.2850
2016-07-26 2016-06-30 13F Waters COM 941848103 18,700 0 0.00 2,630 6.61 1.1168
2016-04-26 2016-03-31 13F Waters COM 941848103 18,700 -500 -2.60 2,467 -4.53 1.1215
2016-01-29 2015-12-31 13F Waters COM 941848103 19,200 0 0.00 2,584 13.83 1.1900
2015-10-27 2015-09-30 13F Waters COM 941848103 19,200 -250 -1.29 2,270 -9.09 1.1091
2015-07-29 2015-06-30 13F Waters COM 941848103 19,450 0 0.00 2,497 3.27 1.1423
2015-04-29 2015-03-31 13F Waters COM 941848103 19,450 19,450 0.00 2,418 1.0816
2015-01-26 2014-12-31 13F Waters COM 941848103 0 -20,050 -100.00 0 -100.00
2014-10-22 2014-09-30 13F Waters COM 941848103 20,050 0 0.00 1,987 -5.11 0.9152
2014-07-25 2014-06-30 13F Waters COM 941848103 20,050 0 0.00 2,094 -3.68 0.9763
2014-04-24 2014-03-31 13F Waters COM 941848103 20,050 0 0.00 2,174 8.43 1.0674
2014-01-31 2013-12-31 13F Waters COM 941848103 20,050 -500 -2.43 2,005 -8.15 1.0094
2013-10-31 2013-09-30 13F Waters COM 941848103 20,550 0 0.00 2,183 6.18 1.1982
2013-07-31 2013-06-30 13F Waters COM 941848103 20,550 20,550 2,056 1.1784
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.