와츠 워터 테크놀로지스, Inc.
MX ˙ BMV ˙ US9427491025
SecurityMX:WTS / Watts Water Technologies, Inc.
InstitutionJupiter Asset Management Ltd
Latest Disclosed Ownership84,308 shares
Latest Disclosed Value $ 24,473,769
Jupiter Asset Management Ltd reports 0.55% increase in ownership of WTS / Watts Water Technologies, Inc.

On May 12, 2026 - Jupiter Asset Management Ltd filed a 13F-HR form disclosing ownership of 84,308 shares of Watts Water Technologies, Inc. (MX:WTS) valued at $24,473,769 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 83,846 shares of Watts Water Technologies, Inc.. This represents a change in shares of 0.55% 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)
2026-05-12 2026-03-31 13F WATTS WATER TECHNOLOGIES CL A* 942749102 84,308 462 0.55 24,474 5.75 0.1031
2026-02-10 2025-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 83,846 16 0.02 23,143 -1.15 0.1853
2025-11-10 2025-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 83,830 -24,093 -22.32 23,412 -11.78 0.2010
2025-08-08 2025-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 107,923 -2,075 -1.89 26,537 18.31 0.2214
2025-05-09 2025-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 109,998 -3,047 -2.70 22,431 -2.40 0.2150
2025-02-10 2024-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 113,045 0 0.00 22,982 -1.87 0.2241
2024-11-12 2024-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 113,045 0 0.00 23,422 12.99 0.2052
2024-08-08 2024-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 113,045 -24,128 -17.59 20,729 -28.90 0.1959
2024-05-10 2024-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 137,173 27,929 25.57 29,156 28.11 0.2783
2024-02-09 2023-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 109,244 -27,015 -19.83 22,760 -3.35 0.2256
2023-11-09 2023-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 136,259 0 0.00 23,548 -5.94 0.2606
2023-08-10 2023-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 136,259 0 0.00 25,035 9.27 0.2736
2023-05-10 2023-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 136,259 5,631 4.31 22,912 20.01 0.3166
2023-02-10 2022-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 130,628 0 0.00 19,091 16.24 0.2792
2022-11-10 2022-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 130,628 0 0.00 16,424 2.36 0.2539
2022-08-10 2022-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 130,628 -556 -0.42 16,045 -12.32 0.2257
2022-05-11 2022-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 131,184 0 0.00 18,300 -27.72 0.2171
2022-02-11 2021-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 131,184 764 0.59 25,319 15.46 0.2778
2021-11-10 2021-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 130,420 -472 -0.36 21,929 14.82 0.2484
2021-08-10 2021-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 130,892 0 0.00 19,098 127,220.00 0.1967
2021-05-12 2021-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 130,892 0 0.00 16 0.00 0.1529
2021-02-10 2020-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 130,892 981 0.76 16 15.38 0.1606
2020-11-10 2020-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 129,911 0 0.00 13 -99.88 0.1371
2020-08-11 2020-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 129,911 0 0.00 10,523 -4.28 0.3508
2020-05-12 2020-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 129,911 574 0.44 10,994 -14.76 0.4758
2020-02-11 2019-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 129,337 0 0.00 12,897 6.43 0.3979
2019-11-13 2019-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 129,337 0 0.00 12,118 0.68 0.3963
2019-08-12 2019-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 129,337 0 0.00 12,036 15.14 0.3815
2019-05-13 2019-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 129,337 -150 -0.12 10,453 25.95 0.3383
2019-02-11 2018-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 129,487 0 0.00 8,299 -22.78 0.2912
2018-11-09 2018-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 129,487 0 0.00 10,747 5.80 0.3077
2018-08-13 2018-06-30 13F/A-1 WATTS WATER TECHNOLOGIES CL A 942749102 129,487 0 0.00 10,158 0.96 0.2972
2018-08-10 2018-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 129,487 0 10,158
2018-05-11 2018-03-31 13F WATTS WATER TECHNOLOGIES CLA 942749102 129,487 4,044 3.22 10,061 5.61 0.3061
2018-02-12 2017-12-31 13F WATTS WATER TECHNOLOGIES COM 942749102 125,443 0 0.00 9,527 9.75 0.2742
2017-11-13 2017-09-30 13F WATTS WATER TECHNOLOGIES COM 942749102 125,443 0 0.00 8,681 9.50 0.2959
2017-08-11 2017-06-30 13F WATTS WATER TECHNOLOGIES COM 942749102 125,443 0 0.00 7,928 1.37 0.2750
2017-05-11 2017-03-31 13F WATTS WATER TECHNOLOGIES COM 942749102 125,443 -67 -0.05 7,821 -4.42 0.2856
2017-02-10 2016-12-31 13F WATTS WATER TECHNOLOGIES COM 942749102 125,510 0 0.00 8,183 0.55 0.3056
2016-11-14 2016-09-30 13F WATTS WATER TECHNOLOGIES-A COM 942749102 125,510 0 0.00 8,138 11.30 0.3073
2016-08-10 2016-06-30 13F WATTS WATER TECHNOLOGIES-A COM 942749102 125,510 0 0.00 7,312 5.68 0.2794
2016-05-11 2016-03-31 13F WATTS WATER TECHNOLOGIES-A COM 942749102 125,510 0 0.00 6,919 10.99 0.2629
2016-02-12 2015-12-31 13F WATTS WATER TECHNOLOGIES-A COM 942749102 125,510 35,500 39.44 6,234 31.13 0.2286
2015-11-12 2015-09-30 13F WATTS WATER TECHNOLOGIES-A COM 942749102 90,010 80 0.09 4,754 1.95 0.1858
2015-11-06 2015-06-30 13F/A-1 WATTS WATER TECHNOLOGIES-A COM 942749102 89,930 0 0.00 4,663 -5.78 0.1636
2015-08-10 2015-06-30 13F WATTS WATER TECHNOLOGIES-A COM 942749102 89,930 4,663
2015-05-14 2015-03-31 13F WATTS WATER TECHNOLOGIES-A COM 942749102 89,930 0 0.00 4,949 -13.25 0.1724
2015-02-09 2014-12-31 13F WATTS WATER TECHNOLOGIES-A COM 942749102 89,930 200 0.22 5,705 9.14 0.1848
2014-11-07 2014-09-30 13F WATTS WATER TECHNOLOGIES-A COM 942749102 89,730 100 0.11 5,227 -5.51 0.1747
2014-08-11 2014-06-30 13F WATTS WATER TECHNOLOGIES-A COM 942749102 89,630 400 0.45 5,533 5.63 0.1753
2014-04-03 2014-03-31 13F WATTS WATER TECHNOLOGIES-A COM 942749102 89,230 91 0.10 5,237 -5.04 0.1686
2014-01-07 2013-12-31 13F WATTS WATER TECHNOLOGIES-A COM 942749102 89,139 -131 -0.15 5,515 9.60 0.2141
2013-10-09 2013-09-30 13F WATTS WATER TECHNOLOGIES-A COM 942749102 89,270 450 0.51 5,032 24.96 0.2214
2013-07-25 2013-06-30 13F WATTS WATER TECHNOLOGIES-A COM 942749102 88,820 88,820 4,027 0.1798
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.