Waters Corporation
MX ˙ BMV ˙ US9418481035
SecurityMX:WAT / Waters Corporation
InstitutionAmalgamated Bank
Latest Disclosed Ownership18,821 shares
Latest Disclosed Value $ 5,605
Amalgamated Bank reports 54.50% increase in ownership of WAT / Waters Corporation

On May 8, 2026 - Amalgamated Bank filed a 13F-HR form disclosing ownership of 18,821 shares of Waters Corporation (MX:WAT) valued at $5,605 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 12,182 shares of Waters Corporation. This represents a change in shares of 54.50% 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)
2026-05-08 2026-03-31 13F WATERS COM 941848103 18,821 6,639 54.50 6 25.00 0.0429
2026-02-05 2025-12-31 13F WATERS COM 941848103 12,182 -378 -3.01 5 33.33 0.0334
2025-10-29 2025-09-30 13F WATERS COM 941848103 12,560 -1 -0.01 4 -25.00 0.0269
2025-08-04 2025-06-30 13F WATERS COM 941848103 12,561 291 2.37 4 0.00 0.0338
2025-04-25 2025-03-31 13F WATERS COM 941848103 12,270 298 2.49 5 0.00 0.0387
2025-02-04 2024-12-31 13F WATERS COM 941848103 11,972 -172 -1.42 4 0.00 0.0365
2024-10-30 2024-09-30 13F WATERS COM 941848103 12,144 -337 -2.70 4 33.33 0.0360
2024-08-12 2024-06-30 13F WATERS COM 941848103 12,481 -294 -2.30 4 -25.00 0.0308
2024-04-23 2024-03-31 13F WATERS COM 941848103 12,775 -1,846 -12.63 4 0.00 0.0376
2024-02-06 2023-12-31 13F WATERS COM 941848103 14,621 -774 -5.03 5 0.00 0.0384
2023-11-08 2023-09-30 13F WATERS COM 941848103 15,395 -667 -4.15 4 0.00 0.0359
2023-08-11 2023-06-30 13F WATERS COM 941848103 16,062 -1,120 -6.52 4 -20.00 0.0346
2023-05-02 2023-03-31 13F WATERS COM 941848103 17,182 822 5.02 5 0.00 0.0453
2023-02-10 2022-12-31 13F WATERS COM 941848103 16,360 -377 -2.25 6 -99.89 0.0500
2022-11-09 2022-09-30 13F WATERS COM 941848103 16,737 323 1.97 4,511 -16.97 0.0435
2022-08-15 2022-06-30 13F WATERS COM 941848103 16,414 -464 -2.75 5,433 3.70 0.0506
2022-08-25 2022-03-31 13F/A-1 WATERS COM 941848103 16,878 510 3.12 5,239 -14.10 0.0407
2022-06-30 2022-03-31 13F WATERS COM 941848103 16,878 510 5,239 0.0416
2022-02-15 2021-12-31 13F/A-1 WATERS COM 941848103 16,368 1,300 8.63 6,099 13.28 0.0450
2022-02-15 2021-12-31 13F WATERS COM 941848103 16,368 1,300 6,099 0.0450
2021-10-29 2021-09-30 13F WATERS COM 941848103 15,068 -736 -4.66 5,384 -1.43 0.0455
2021-08-16 2021-06-30 13F WATERS COM 941848103 15,804 12,415 366.33 5,462 467.19 0.0438
2021-05-13 2021-03-31 13F WATERS COM 941848103 3,389 -126 -3.58 963 10.69 0.0361
2021-02-12 2020-12-31 13F WATERS COM 941848103 3,515 -4 -0.11 870 26.27 0.0330
2020-10-30 2020-09-30 13F WATERS COM 941848103 3,519 -81 -2.25 689 6.16 0.0300
2020-08-10 2020-06-30 13F WATERS COM 941848103 3,600 -7,005 -66.05 649 -66.39 0.0300
2020-05-13 2020-03-31 13F WATERS COM 941848103 10,605 -385 -3.50 1,931 -24.81 0.0472
2020-02-13 2019-12-31 13F WATERS COM 941848103 10,990 -375 -3.30 2,568 1.22 0.0473
2019-11-13 2019-09-30 13F WATERS COM 941848103 11,365 2,221 24.29 2,537 28.91 0.0533
2019-08-14 2019-06-30 13F WATERS COM 941848103 9,144 -2,165 -19.14 1,968 -30.87 0.0459
2019-05-15 2019-03-31 13F WATERS COM 941848103 11,309 159 1.43 2,847 35.38 0.0690
2019-02-15 2018-12-31 13F WATERS COM 941848103 11,150 -368 -3.19 2,103 -6.20 0.0596
2018-11-14 2018-09-30 13F WATERS COM 941848103 11,518 -468 -3.90 2,242 -3.36 0.0554
2018-07-18 2018-06-30 13F WATERS COM 941848103 11,986 791 7.07 2,320 4.32 0.0567
2018-05-22 2018-03-31 13F WATERS COM 941848103 11,195 1,082 10.70 2,224 13.82 0.0590
2018-02-13 2017-12-31 13F WATERS COM 941848103 10,113 872 9.44 1,954 17.78 0.0529
2017-11-09 2017-09-30 13F WATERS COM 941848103 9,241 197 2.18 1,659 -0.24 0.0517
2017-08-10 2017-06-30 13F WATERS COM 941848103 9,044 3,172 54.02 1,663 81.15 0.0545
2017-05-12 2017-03-31 13F WATERS COM 941848103 5,872 -2,501 -29.87 918 -18.40 0.0457
2017-02-14 2016-12-31 13F WATERS COM 941848103 8,373 1,450 20.94 1,125 2.55 0.0508
2016-11-15 2016-09-30 13F/A-1 WATERS COM 941848103 6,923 4 0.06 1,097 -0.45 0.0637
2016-11-14 2016-09-30 13F WATERS COM 941848103 2,004 318
2016-08-16 2016-06-30 13F WATERS COM 941848103 6,919 3,643 111.20 1,102 155.09 0.0638
2016-05-11 2016-03-31 13F WATERS COM 941848103 3,276 779 31.20 432 28.57 0.0421
2016-02-10 2015-12-31 13F WATERS COM 941848103 2,497 -641 -20.43 336 -9.43 0.0414
2015-11-04 2015-09-30 13F WATERS COM 941848103 3,138 113 3.74 371 -4.38 0.0389
2015-07-10 2015-06-30 13F WATERS COM 941848103 3,025 75 2.54 388 5.72 0.0381
2015-04-22 2015-03-31 13F WATERS COM 941848103 2,950 2,950 0.00 367 0.0448
2015-01-29 2014-12-31 13F WATERS COM 941848103 0 -2,601 -100.00 0 -100.00
2014-11-14 2014-09-30 13F WATERS COM 941848103 2,601 154 6.29 258 0.78 0.0384
2014-08-11 2014-06-30 13F WATERS COM 941848103 2,447 261 11.94 256 8.02 0.0386
2014-05-12 2014-03-31 13F WATERS COM 941848103 2,186 -45 -2.02 237 6.28 0.0408
2014-02-13 2013-12-31 13F WATERS COM 941848103 2,231 2,231 -4.13 223 1.83 0.0379
2013-11-14 2013-09-30 13F WATERS COM 941848103 0 0 0 0.0000
2013-08-15 2013-06-30 13F WATERS COM 941848103 0 -2,327 -100.00 0 -100.00
2014-02-13 2013-03-31 13F WATERS COM 941848103 2,327 2,327 219 0.0621
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.