Watts Water Technologies, Inc.
US ˙ NYSE ˙ US9427491025

SecurityWTS / Watts Water Technologies, Inc.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership1,343 shares
Latest Disclosed Value $ 390,265
Advisor Group Holdings, Inc. reports 55.44% increase in ownership of WTS / Watts Water Technologies, Inc.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 1,343 shares of Watts Water Technologies, Inc. (US:WTS) valued at $389,859 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 864 shares of Watts Water Technologies, Inc.. This represents a change in shares of 55.44% during the quarter. The current value of the position is $422,575 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 1,343 479 55.44 390 63.87 0.0003
2026-02-17 2025-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 864 -3,426 -79.86 239 -80.10 0.0003
2025-11-14 2025-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 4,290 2,114 97.15 1,196 153.93 0.0017
2025-09-04 2025-06-30 13F/A-1 ATTS WATER TECHNOLOGIES CL A 942749102 2,176 1,076 97.82 471 110.27 0.0008
2025-08-13 2025-06-30 13F ATTS WATER TECHNOLOGIES CL A 942749102 2,669 1,569 550 0.0006
2025-05-12 2025-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 1,100 -412 -27.25 225 -27.04 0.0005
2025-06-06 2024-12-31 13F/A-1 WATTS WATER TECHNOLOGIES CL A 942749102 1,512 -1,137 -42.92 308 -43.98 0.0007
2025-02-07 2024-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 1,508 -1,141 311 0.0008
2024-11-13 2024-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 2,649 -132 -4.75 549 7.45 0.0012
2024-08-13 2024-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 2,781 -724 -20.66 510 -31.54 0.0012
2024-05-10 2024-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 3,505 -1,449 -29.25 745 -27.81 0.0017
2024-02-12 2023-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 4,954 3,162 176.45 1,032 233.98 0.0018
2023-11-13 2023-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 1,792 158 9.67 310 3.00 0.0005
2023-08-21 2023-06-30 13F/A-1 WATTS WATER TECHNOLOGIES CL A 942749102 1,634 36 2.25 300 11.94 0.0005
2023-08-10 2023-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 1,634 36 300 0.0001
2023-05-12 2023-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 1,598 -170 -9.62 269 3.88 0.0005
2023-02-10 2022-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 1,768 19 1.09 258 17.27 0.0005
2022-11-14 2022-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 1,749 -414 -19.14 220 -17.29 0.0005
2022-08-10 2022-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 2,163 319 17.30 266 3.10 0.0006
2022-05-04 2022-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 1,844 -94 -4.85 258 -31.38 0.0005
2022-02-03 2021-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 1,938 86 4.64 376 20.90 0.0007
2021-11-05 2021-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 1,852 100 5.71 311 21.96 0.0006
2021-08-02 2021-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 1,752 197 12.67 255 37.84 0.0006
2021-05-13 2021-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 1,555 -144 -8.48 185 -10.63 0.0004
2021-02-10 2020-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 1,699 -587 -25.68 207 -9.61 0.0006
2020-11-12 2020-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 2,286 -1,019 -30.83 229 -13.91 0.0007
2020-08-14 2020-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 3,305 1,178 55.38 266 47.78 0.0009
2020-05-18 2020-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 2,127 2,127 180 0.0007
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.