Watts Water Technologies, Inc.
US ˙ NYSE ˙ US9427491025

SecurityWTS / Watts Water Technologies, Inc.
InstitutionMan Group plc
Latest Disclosed Ownership8,622 shares
Latest Disclosed Value $ 2,502,881
Man Group plc reports 4.91% decrease in ownership of WTS / Watts Water Technologies, Inc.

On May 15, 2026 - Man Group plc filed a 13F-HR form disclosing ownership of 8,622 shares of Watts Water Technologies, Inc. (US:WTS) valued at $2,502,880 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 9,067 shares of Watts Water Technologies, Inc.. This represents a change in shares of -4.91% during the quarter. The current value of the position is $2,712,912 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)
2026-05-15 2026-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 8,622 -445 -4.91 2,503 0.00 0.0028
2026-02-17 2025-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 9,067 4,532 99.93 2,503 97.63 0.0043
2025-11-14 2025-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 4,535 -3,489 -43.48 1,267 -35.83 0.0022
2025-08-14 2025-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 8,024 -11,723 -59.37 1,973 -50.99 0.0038
2025-05-15 2025-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 19,747 12,963 191.08 4,027 191.95 0.0102
2025-02-14 2024-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 6,784 -5,379 -44.22 1,379 -45.28 0.0036
2024-11-14 2024-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 12,163 -14,063 -53.62 2,520 -47.60 0.0066
2024-08-14 2024-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 26,226 18,402 235.20 4,809 189.35 0.0121
2024-05-15 2024-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 7,824 3,160 67.75 1,663 71.16 0.0042
2024-02-14 2023-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 4,664 972 -61.98 0.0027
2023-11-14 2023-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 2,554 -41.78 0.0079
2023-08-14 2023-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 23,881 4,388 5.28 0.0135
2023-05-15 2023-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 4,168 69.60 0.0148
2023-02-14 2022-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 16,808 -2,193 -11.54 2,458 2.85 0.0088
2022-11-14 2022-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 19,001 2,389 -19.45 0.0111
2022-08-15 2022-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 2,966 -62.86 0.0126
2022-05-16 2022-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 57,206 -15,543 -21.37 7,986 -43.46 0.0278
2022-02-14 2021-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 72,749 296 0.41 14,125 15.99 0.0454
2021-11-15 2021-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 72,453 2,258 3.22 12,178 18.90 0.0427
2021-08-16 2021-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 70,195 2,512 3.71 10,242 27.37 0.0361
2021-05-17 2021-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 67,683 32,421 91.94 8,041 87.39 0.0354
2021-02-16 2020-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 35,262 18,676 112.60 4,291 158.34 0.0188
2020-11-16 2020-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 16,586 -75,841 -82.06 1,661 -77.81 0.0065
2020-08-14 2020-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 92,427 -17,322 -15.78 7,486 -19.42 0.0377
2020-05-15 2020-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 109,749 -99,700 -47.60 9,290 -55.54 0.0602
2020-02-18 2019-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 209,449 88,242 72.80 20,895 83.92 0.0687
2019-11-14 2019-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 121,207 56,534 87.42 11,361 88.53 0.0422
2019-08-14 2019-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 64,673 37,405 137.18 6,026 173.54 0.0218
2019-05-15 2019-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 27,268 3,499 14.72 2,203 43.61 0.0084
2019-02-14 2018-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 23,769 -90,066 -79.12 1,534 -83.76 0.0068
2018-11-14 2018-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 113,835 76,570 205.47 9,448 223.34 0.0345
2018-08-14 2018-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 37,265 199 0.54 2,922 1.46 0.0120
2018-05-15 2018-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 37,066 37,066 2,880 0.0132
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.