Waters Corporation
MX ˙ BMV ˙ US9418481035
SecurityMX:WAT / Waters Corporation
InstitutionStifel Financial Corp
Latest Disclosed Ownership54,401 shares
Latest Disclosed Value $ 16,200,982
Stifel Financial Corp reports 115.86% increase in ownership of WAT / Waters Corporation

On May 12, 2026 - Stifel Financial Corp filed a 13F-HR form disclosing ownership of 54,401 shares of Waters Corporation (MX:WAT) valued at $16,200,982 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 25,202 shares of Waters Corporation. This represents a change in shares of 115.86% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-12 2026-03-31 13F WATERS COM 941848103 54,401 29,199 115.86 16,201 69.24 0.0035
2026-02-13 2025-12-31 13F WATERS COM 941848103 25,202 463 1.87 9,572 29.07 0.0086
2025-11-12 2025-09-30 13F WATERS COM 941848103 24,739 321 1.31 7,417 -12.98 0.0068
2025-08-14 2025-06-30 13F WATERS COM 941848103 24,418 -236 -0.96 8,523 -6.21 0.0083
2025-05-14 2025-03-31 13F WATERS COM 941848103 24,654 475 1.96 9,087 1.30 0.0097
2025-02-13 2024-12-31 13F WATERS COM 941848103 24,179 1,484 6.54 8,970 9.82 0.0093
2024-11-14 2024-09-30 13F WATERS COM 941848103 22,695 720 3.28 8,168 28.11 0.0086
2024-08-13 2024-06-30 13F WATERS COM 941848103 21,975 -215 -0.97 6,375 -16.54 0.0072
2024-05-14 2024-03-31 13F WATERS COM 941848103 22,190 -3,725 -14.37 7,638 -10.47 0.0087
2024-02-12 2023-12-31 13F WATERS COM 941848103 25,915 7,681 42.12 8,532 70.65 0.0107
2023-11-13 2023-09-30 13F WATERS COM 941848103 18,234 3,698 25.44 5,000 29.04 0.0070
2023-08-14 2023-06-30 13F WATERS COM 941848103 14,536 8,585 144.26 3,874 110.31 0.0053
2023-05-12 2023-03-31 13F WATERS COM 941848103 5,951 -347 -5.51 1,843 -14.60 0.0026
2023-02-13 2022-12-31 13F WATERS COM 941848103 6,298 -538 -7.87 2,158 17.10 0.0032
2022-11-14 2022-09-30 13F WATERS COM 941848103 6,836 -209 -2.97 1,842 -20.98 0.0030
2022-08-15 2022-06-30 13F WATERS COM 941848103 7,045 -37 -0.52 2,331 6.05 0.0036
2022-05-13 2022-03-31 13F WATERS COM 941848103 7,082 624 9.66 2,198 -8.68 0.0030
2022-02-14 2021-12-31 13F WATERS COM 941848103 6,458 -729 -10.14 2,407 -6.27 0.0032
2021-11-15 2021-09-30 13F WATERS COM 941848103 7,187 -118 -1.62 2,568 1.74 0.0038
2021-08-13 2021-06-30 13F WATERS COM 941848103 7,305 -810 -9.98 2,524 9.45 0.0038
2021-05-14 2021-03-31 13F WATERS COM 941848103 8,115 -794 -8.91 2,306 4.58 0.0038
2021-02-12 2020-12-31 13F WATERS COM 941848103 8,909 -296 -3.22 2,205 22.43 0.0039
2020-11-16 2020-09-30 13F WATERS COM 941848103 9,205 1,793 24.19 1,801 34.70 0.0037
2020-08-14 2020-06-30 13F WATERS COM 941848103 7,412 -1,467 -16.52 1,337 -17.47 0.0031
2020-05-14 2020-03-31 13F WATERS COM 941848103 8,879 -9,517 -51.73 1,620 -62.28 0.0045
2020-02-13 2019-12-31 13F WATERS COM 941848103 18,396 2,620 16.61 4,295 22.33 0.0089
2019-11-19 2019-09-30 13F/A-1 WATERS COM 941848103 15,776 10,499 198.96 3,511 208.52 0.0090
2019-11-13 2019-09-30 13F WATERS COM 941848103 15,791 10,514 3,514 1,969.7731
2019-08-14 2019-06-30 13F WATERS COM 941848103 5,277 -6,318 -54.49 1,138 -61.00 0.0029
2019-05-14 2019-03-31 13F WATERS COM 941848103 11,595 7,937 216.98 2,918 323.51 0.0082
2019-02-13 2018-12-31 13F WATERS COM 941848103 3,658 347 10.48 689 6.99 0.0022
2018-11-13 2018-09-30 13F WATERS COM 941848103 3,311 -286 -7.95 644 -7.60 0.0018
2018-08-14 2018-06-30 13F WATERS COM 941848103 3,597 67 1.90 697 -0.99 0.0021
2018-05-11 2018-03-31 13F WATERS COM 941848103 3,530 69 1.99 704 5.07 0.0022
2018-02-14 2017-12-31 13F WATERS COM 941848103 3,461 0 0.00 670 7.89 0.0021
2017-11-13 2017-09-30 13F WATERS COM 941848103 3,461 -835 -19.44 621 -21.29 0.0022
2017-08-14 2017-06-30 13F WATERS COM 941848103 4,296 -250 -5.50 789 10.66 0.0029
2017-05-10 2017-03-31 13F WATERS COM 941848103 4,546 -64 -1.39 713 15.56 0.0028
2017-02-16 2016-12-31 13F WATERS COM 941848103 4,610 130 2.90 617 -13.46 0.0026
2016-11-15 2016-09-30 13F WATERS COM 941848103 4,480 -175 -3.76 713 8.52 0.0032
2016-08-17 2016-06-30 13F WATERS COM 941848103 4,655 140 3.10 657 10.42 0.0030
2016-05-16 2016-03-31 13F WATERS COM 941848103 4,515 73 1.64 595 -0.17 0.0032
2016-03-21 2015-12-31 13F/A-2 WATERS COM 941848103 4,442 -73 -1.62 596 11.82 0.0031
2016-02-26 2015-12-31 13F/A-1 WATERS COM 941848103 4,442 0 596 0.0031
2016-02-16 2015-12-31 13F WATERS COM 941848103 4,442 596
2015-11-16 2015-09-30 13F WATERS COM 941848103 4,515 -300 -6.23 533 -13.75 0.0030
2015-08-17 2015-06-30 13F/A-1 WATERS COM 941848103 4,815 -566 -10.52 618 -7.62 0.0032
2015-08-17 2015-06-30 13F WATERS COM 941848103 4,815 618
2015-05-14 2015-03-31 13F WATERS COM 941848103 5,381 -4 -0.07 669 10.40 0.0037
2015-02-13 2014-12-31 13F WATERS COM 941848103 5,385 2,853 112.68 606 141.43 0.0034
2014-11-13 2014-09-30 13F WATERS COM 941848103 2,532 -1,272 -33.44 251 -36.78 0.0022
2014-08-14 2014-06-30 13F WATERS COM 941848103 3,804 -90 -2.31 397 -5.92 0.0036
2014-05-15 2014-03-31 13F WATERS COM 941848103 3,894 3,894 422 0.0040
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.