Watts Water Technologies, Inc.
MX ˙ BMV ˙ US9427491025
SecurityMX:WTS / Watts Water Technologies, Inc.
InstitutionFirst Trust Advisors Lp
Latest Disclosed Ownership545,404 shares
Latest Disclosed Value $ 158,325,326
First Trust Advisors Lp reports 6.73% increase in ownership of WTS / Watts Water Technologies, Inc.

On May 13, 2026 - First Trust Advisors Lp filed a 13F-HR form disclosing ownership of 545,404 shares of Watts Water Technologies, Inc. (MX:WTS) valued at $158,325,326 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 511,023 shares of Watts Water Technologies, Inc.. This represents a change in shares of 6.73% 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)
2026-05-13 2026-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 545,404 34,381 6.73 158,325 12.25 0.1128
2026-02-13 2025-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 511,023 -2,638 -0.51 141,053 -1.68 0.1025
2025-11-12 2025-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 513,661 -32,063 -5.88 143,455 6.91 0.1066
2025-08-13 2025-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 545,724 4,689 0.87 134,188 21.63 0.1079
2025-05-14 2025-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 541,035 311,489 135.70 110,328 136.42 0.0977
2025-02-13 2024-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 229,546 14,239 6.61 46,667 4.61 0.0411
2024-11-13 2024-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 215,307 -65,380 -23.29 44,609 -13.33 0.0425
2024-08-13 2024-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 280,687 401 0.14 51,470 -13.60 0.0525
2024-05-13 2024-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 280,286 83,109 42.15 59,575 45.02 0.0605
2024-02-13 2023-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 197,177 -16,499 -7.72 41,080 11.24 0.0448
2023-11-13 2023-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 213,676 -67,961 -24.13 36,927 -28.64 0.0438
2023-08-14 2023-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 281,637 19,005 7.24 51,745 17.05 0.0588
2023-05-15 2023-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 262,632 41,772 18.91 44,206 36.88 0.0510
2023-02-09 2022-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 220,860 -9,200 -4.00 32,296 11.65 0.0384
2022-11-14 2022-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 230,060 44,007 23.65 28,925 26.56 0.0375
2022-08-12 2022-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 186,053 -56,320 -23.24 22,855 -32.45 0.0282
2022-05-13 2022-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 242,373 -64,968 -21.14 33,833 -43.31 0.0346
2022-02-08 2021-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 307,341 14,778 5.05 59,676 21.35 0.0581
2021-11-15 2021-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 292,563 119,322 68.88 49,177 94.55 0.0529
2021-10-12 2021-06-30 13F/A-1 WATTS WATER TECHNOLOGIES CL A 942749102 173,241 6,020 3.60 25,277 27.22 0.0274
2021-08-16 2021-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 173,241 6,020 25,277 0.0261
2021-05-14 2021-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 167,221 32,436 24.06 19,869 21.13 0.0241
2021-02-02 2020-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 134,785 19,093 16.50 16,403 41.56 0.0217
2020-11-05 2020-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 115,692 -89,088 -43.50 11,587 -30.14 0.0186
2020-07-22 2020-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 204,780 157 0.08 16,587 -4.24 0.0288
2020-05-06 2020-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 204,623 14,994 7.91 17,321 -8.44 0.0392
2020-02-03 2019-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 189,629 26,975 16.58 18,917 24.08 0.0323
2019-11-04 2019-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 162,654 22,538 16.09 15,246 16.77 0.0287
2019-07-30 2019-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 140,116 -24,025 -14.64 13,056 -1.58 0.0246
2019-06-19 2019-03-31 13F/A-1 WATTS WATER TECHNOLOGIES CL A 942749102 164,141 -2,072 -1.25 13,266 23.68 0.0264
2019-05-09 2019-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 164,141 -2,072 13,266
2019-02-07 2018-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 166,213 3,730 2.30 10,726 -20.47 0.0254
2018-10-25 2018-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 162,483 5,230 3.33 13,486 9.38 0.0251
2018-08-02 2018-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 157,253 26,663 20.42 12,329 21.50 0.0256
2018-04-23 2018-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 130,590 37,061 39.63 10,147 42.84 0.0233
2018-02-08 2017-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 93,529 1,620 1.76 7,104 11.70 0.0169
2017-10-24 2017-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 91,909 -33,733 -26.85 6,360 -19.91 0.0164
2017-08-02 2017-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 125,642 31,835 33.94 7,941 35.77 0.0212
2017-05-02 2017-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 93,807 -3,479 -3.58 5,849 -7.79 0.0162
2017-02-06 2016-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 97,286 22,226 29.61 6,343 30.33 0.0189
2016-11-01 2016-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 75,060 8,370 12.55 4,867 25.28 0.0145
2016-08-04 2016-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 66,690 -3,803 -5.39 3,885 -0.03 0.0122
2016-05-10 2016-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 70,493 -15,305 -17.84 3,886 -8.82 0.0125
2016-05-04 2015-12-31 13F/A-1 WATTS WATER TECHNOLOGIES CL A 942749102 85,798 -3,677 -4.11 4,262 -9.82 0.0111
2016-02-03 2015-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 85,798 4,262
2015-11-05 2015-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 89,475 -54,334 -37.78 4,726 -36.61 0.0137
2015-08-04 2015-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 143,809 14,534 11.24 7,456 4.81 0.0194
2015-05-04 2015-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 129,275 -15,167 -10.50 7,114 -22.36 0.0209
2015-02-13 2014-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 144,442 -12,158 -7.76 9,163 0.45 0.0309
2014-11-12 2014-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 156,600 19,404 14.14 9,122 7.71 0.0359
2014-08-11 2014-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 137,196 -3,317 -2.36 8,469 2.69 0.0352
2014-05-12 2014-03-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 140,513 4,987 3.68 8,247 -1.65 0.0362
2014-08-08 2013-12-31 13F/A-1 WATTS WATER TECHNOLOGIES CL A 942749102 135,526 18,582 15.89 8,385 27.20 0.0407
2014-02-13 2013-12-31 13F WATTS WATER TECHNOLOGIES CL A 942749102 135,526 8,385
2013-11-12 2013-09-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 116,944 5,558 4.99 6,592 30.53 0.0357
2013-08-12 2013-06-30 13F WATTS WATER TECHNOLOGIES CL A 942749102 111,386 111,386 5,050 0.0329
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.