Watts Water Technologies, Inc.
US ˙ NYSE ˙ US9427491025

SecurityWTS / Watts Water Technologies, Inc.
InstitutionQuilter Plc
Latest Disclosed Ownership18,789 shares
Latest Disclosed Value $ 5,454,259
Quilter Plc reports 23.65% decrease in ownership of WTS / Watts Water Technologies, Inc.

On May 13, 2026 - Quilter Plc filed a 13F-HR form disclosing ownership of 18,789 shares of Watts Water Technologies, Inc. (US:WTS) valued at $5,454,259 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 24,609 shares of Watts Water Technologies, Inc.. This represents a change in shares of -23.65% during the quarter. The current value of the position is $5,911,959 USD.

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)
2026-05-13 2026-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 18,789 -5,820 -23.65 5,454 -19.70 0.0958
2026-01-21 2025-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 24,609 -410 -1.64 6,793 -2.79 0.1140
2025-10-31 2025-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 25,019 -4,455 -15.12 6,987 -3.59 0.1200
2025-08-12 2025-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 29,474 -2,307 -7.26 7,247 11.84 0.1323
2025-04-24 2025-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 31,781 -685 -2.11 6,481 -1.82 0.1346
2025-01-29 2024-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 32,466 770 2.43 6,600 0.50 0.1304
2024-11-12 2024-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 31,696 1,229 4.03 6,567 17.56 0.1340
2024-08-09 2024-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 30,467 1,799 6.28 5,587 -8.32 0.1253
2024-05-15 2024-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 28,668 8,245 40.37 6,093 41.93 0.1441
2024-02-14 2023-12-31 13F/A-1 WATTS WATER TECHNOLOGIES CL A 942749102 20,423 240 1.19 4,293 -78.68 0.1450
2024-01-24 2023-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 20,423 240 20,305 0.0637
2023-11-01 2023-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 20,183 0 0.00 20,139 0.55 0.0794
2023-07-19 2023-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 20,183 1,560 8.38 20,027 8.30 0.0778
2023-05-16 2023-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 18,623 -11,464 -38.10 18,493 320.37 0.0710
2023-02-08 2022-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 30,087 290 0.97 4,400 17.43 0.1448
2022-11-02 2022-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 29,797 983 3.41 3,746 5.82 0.1344
2022-08-04 2022-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 28,814 0 0.00 3,540 -11.98 0.1198
2022-05-20 2022-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 28,814 0 0.00 4,022 -27.22 0.1093
2022-02-14 2021-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 28,814 0 0.00 5,526 14.10 0.1439
2021-11-04 2021-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 28,814 0 0.00 4,843 15.20 0.1351
2021-08-12 2021-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 28,814 0 0.00 4,204 22.82 0.1209
2021-05-14 2021-03-31 13F/A-1 WATTS WATER TECHNOLOGIES CL A 942749102 28,814 0 0.00 3,423 -2.40 0.1082
2021-05-12 2021-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 28,814 0 3,423 0.0500
2021-02-12 2020-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 28,814 -14,406 -33.33 3,507 -18.97 0.1201
2020-11-12 2020-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 43,220 0 0.00 4,328 23.62 0.1714
2020-08-12 2020-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 43,220 0 0.00 3,501 -4.32 0.1715
2020-05-08 2020-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 43,220 0 0.00 3,659 -15.14 0.2421
2020-02-13 2019-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 43,220 43,220 4,312 0.2531
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.