Watts Water Technologies, Inc.
MX ˙ BMV ˙ US9427491025
SecurityMX:WTS / Watts Water Technologies, Inc.
InstitutionXTX Topco Ltd
Latest Disclosed Ownership4,206 shares
Latest Disclosed Value $ 1,220,960
XTX Topco Ltd reports 196.41% increase in ownership of WTS / Watts Water Technologies, Inc.

On May 15, 2026 - XTX Topco Ltd filed a 13F-HR form disclosing ownership of 4,206 shares of Watts Water Technologies, Inc. (MX:WTS) valued at $1,220,960 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,419 shares of Watts Water Technologies, Inc.. This represents a change in shares of 196.41% 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)
2026-05-15 2026-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 4,206 2,787 196.41 1,221 212.02 0.0212
2026-02-17 2025-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 1,419 1,419 392 0.0103
2025-11-14 2025-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 0 -5,454 -100.00 0 -100.00
2025-08-12 2025-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 5,454 1,153 26.81 1,341 52.91 0.0556
2025-05-08 2025-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 4,301 1,180 37.81 877 38.33 0.0449
2025-02-13 2024-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 3,121 542 21.02 634 18.73 0.0521
2024-11-14 2024-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 2,579 2,579 534 0.0386
2024-02-13 2023-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 0 -2,707 -100.00 0 -100.00
2023-11-13 2023-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 2,707 2,707 468 0.0799
2023-08-14 2023-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 0 -1,236 -100.00 0 -100.00
2023-05-12 2023-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 1,236 1,236 208 0.0436
2023-02-14 2022-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 0 -3,139 -100.00 0 -100.00
2022-11-14 2022-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 3,139 3,139 395 0.0978
2022-05-13 2022-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 0 -1,569 -100.00 0 -100.00
2022-02-11 2021-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 1,569 1,569 305 0.1725
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.