WTS Institutional Ownership & Shareholders
WATTS WATER TECHNOLOGIES-A (WTS) is currently held by 566 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $10.00B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of WTS tracked by InsiderSet, reporting ownership valued at approximately $1.10B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $980.26M, representing an estimated loss of -11.20% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 47% of the total disclosed WTS value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Kayne Anderson Rudnick Investment Management Llc, Vanguard Portfolio Management Llc, and several other long-term asset managers with concentrated positions in WATTS WATER TECHNOLOGIES-A (WTS).
This page ranks the largest institutional WTS shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
566
Total Reported Value
$10.00B
Largest Holder
Blackrock, Inc.
Largest Position
$1.10B
Insider Transactions (90d)
5
Latest Filing Quarter
Q2 2026
New Institutional Positions
74
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.02% | 2,820,067 | $1,103,915,116 | $980,255,289 | -$123,659,827 | -11.20% | |
| Kayne Anderson Rudnick Investment Management Llc | 2.41% | 1,984,087 | $776,670,862 | $689,668,641 | -$87,002,221 | -11.20% | |
| Vanguard Portfolio Management Llc | 0.03% | 1,496,689 | $585,878,909 | $520,249,096 | -$65,629,813 | -11.20% | |
| Vanguard Capital Management Llc | 0.01% | 1,235,782 | $483,746,864 | $429,557,823 | -$54,189,041 | -11.20% | |
| Boston Partners | 0.35% | 997,499 | $389,900,757 | $346,730,652 | -$43,170,105 | -11.07% | |
| State Street Corp | 0.01% | 852,511 | $333,616,895 | $296,332,824 | -$37,284,071 | -11.18% | |
| Geode Capital Management, Llc | 0.02% | 767,575 | $300,519,517 | $266,809,070 | -$33,710,447 | -11.22% | |
| Price T Rowe Associates Inc | 0.03% | 673,229 | $263,536,000 | $234,014,400 | -$29,521,600 | -11.20% | |
| Capital World Investors | 0.03% | 659,012 | $257,970,247 | $229,072,571 | -$28,897,676 | -11.20% | |
| First Trust Advisors Lp | 0.13% | 546,475 | $213,917,638 | $189,954,710 | -$23,962,928 | -11.20% | |
| Impax Asset Management Group Plc | 1.38% | 543,412 | $212,718,627 | $188,890,011 | -$23,828,616 | -11.20% | |
| Dimensional Fund Advisors Lp | 0.04% | 526,726 | $206,127,014 | $183,089,958 | -$23,037,056 | -11.18% | |
| Invesco Ltd. | 0.02% | 509,483 | $199,437,120 | $177,096,291 | -$22,340,829 | -11.20% | |
| Pictet Asset Management Holding Sa | 0.18% | 489,605 | $191,600,073 | $170,186,698 | -$21,413,375 | -11.18% | |
| Mirova Us Llc | 1.73% | 412,095 | $161,314,588 | $143,244,222 | -$18,070,366 | -11.20% | |
| Aqr Capital Management Llc | 0.06% | 416,533 | $159,323,904 | $144,786,871 | -$14,537,033 | -9.12% | |
| Gamco Investors, Inc. Et Al | 1.40% | 399,032 | $156,201,076 | $138,703,523 | -$17,497,553 | -11.20% | |
| Morgan Stanley | 0.01% | 327,665 | $128,265,174 | $113,896,354 | -$14,368,820 | -11.20% | |
| Charles Schwab Investment Management Inc | 0.02% | 325,015 | $127,227,122 | $112,975,214 | -$14,251,908 | -11.20% | |
| Boston Trust Walden Corp | 1.01% | 352,775 | $124,945,849 | $122,624,590 | -$2,321,259 | -1.86% | |
| Northern Trust Corp | 0.01% | 260,683 | $102,044,359 | $90,613,411 | -$11,430,948 | -11.20% | |
| Port Capital Llc | 3.98% | 248,896 | $97,430,339 | $86,516,250 | -$10,914,089 | -11.20% | |
| Norges Bank | 0.01% | 241,492 | $94,532,043 | $83,942,619 | -$10,589,424 | -11.20% | |
| Ubs Group Ag | 0.01% | 239,210 | $93,638,754 | $83,149,396 | -$10,489,358 | -11.20% | |
| Goldman Sachs Group Inc | 0.01% | 226,766 | $88,767,772 | $78,823,862 | -$9,943,910 | -11.20% | |
| Bank Of New York Mellon Corp | 0.01% | 194,384 | $76,091,669 | $67,567,878 | -$8,523,791 | -11.20% | |
| Wells Fargo & Company/Mn | 0.01% | 192,471 | $75,342,557 | $66,902,920 | -$8,439,637 | -11.20% | |
| Cartenna Capital, Lp | 2.75% | 190,000 | $74,375,500 | $66,044,000 | -$8,331,500 | -11.20% | |
| Renaissance Technologies LLC | Jim Simons | 0.10% | 179,940 | $70,437,513 | $62,547,144 | -$7,890,369 | -11.20% |
| Vanguard Fiduciary Trust Co | 0.01% | 173,611 | $67,960,026 | $60,347,184 | -$7,612,842 | -11.20% | |
| Victory Capital Management Inc | 0.04% | 171,183 | $67,009,585 | $59,503,211 | -$7,506,374 | -11.20% | |
| Birch Hill Investment Advisors Llc | 2.75% | 188,553 | $66,781,702 | $65,541,023 | -$1,240,679 | -1.86% | |
| Polar Capital Holdings Plc | 0.18% | 163,097 | $63,844,321 | $56,692,517 | -$7,151,804 | -11.20% | |
| Jpmorgan Chase & Co | 0.00% | 169,527 | $61,291,253 | $58,927,585 | -$2,363,668 | -3.86% | |
| Gabelli Funds Llc | 0.39% | 156,556 | $61,283,846 | $54,418,866 | -$6,864,980 | -11.20% | |
| Raymond James Financial Inc | 0.02% | 148,332 | $58,064,595 | $51,560,203 | -$6,504,392 | -11.20% | |
| Hrt Financial Lp | 0.10% | 146,402 | $57,309,000 | $50,889,335 | -$6,419,665 | -11.20% | |
| Bnp Paribas Asset Management Holding S.A. | 0.06% | 144,758 | $56,665,519 | $50,317,881 | -$6,347,638 | -11.20% | |
| D. E. Shaw & Co., Inc. | 0.03% | 127,649 | $49,968,201 | $44,370,792 | -$5,597,409 | -11.20% | |
| Bank Of America Corp | 0.00% | 127,125 | $49,763,230 | $44,188,650 | -$5,574,580 | -11.20% | |
| Eulav Asset Management | 1.77% | 138,766 | $49,148,167 | $48,235,062 | -$913,105 | -1.86% | |
| Susquehanna International Group, Llp | 0.04% | 125,419 | $49,095,267 | $43,595,644 | -$5,499,623 | -11.20% | |
| Voya Investment Management Llc | 0.04% | 112,779 | $44,147,340 | $39,201,980 | -$4,945,360 | -11.20% | |
| Millennium Management Llc | 0.03% | 108,110 | $42,319,659 | $37,579,036 | -$4,740,623 | -11.20% | |
| Triodos Investment Management Bv | 2.50% | 105,000 | $41,102,250 | $36,498,000 | -$4,604,250 | -11.20% | |
| Legal & General Group Plc | 0.01% | 104,876 | $41,036,279 | $36,454,898 | -$4,581,381 | -11.16% | |
| Squarepoint Ops Llc | 0.08% | 104,815 | $41,029,832 | $36,433,694 | -$4,596,138 | -11.20% | |
| Aegon Asset Management Uk Plc | 0.40% | 95,231 | $37,278,175 | $33,102,296 | -$4,175,879 | -11.20% | |
| Lazard Asset Management Llc | 0.06% | 95,078 | $37,218,283 | $33,049,113 | -$4,169,170 | -11.20% | |
| Storebrand Asset Management As | 0.09% | 94,813 | $37,114,549 | $32,956,999 | -$4,157,550 | -11.20% |
Frequently asked questions about WTS
Who are the largest institutional holders of WTS?
The largest institutional holders of WTS reported in the latest SEC Form 13F filings include Blackrock, Inc., Kayne Anderson Rudnick Investment Management Llc, Vanguard Portfolio Management Llc, Vanguard Capital Management Llc, and Boston Partners. InsiderSet ranks institutional holders by their latest reported WTS position.
What is WTS institutional ownership?
This page tracks WTS positions reported by institutional investment managers through SEC Form 13F. WATTS WATER TECHNOLOGIES-A (WTS) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own WTS?
InsiderSet currently tracks 566 institutional managers reporting WTS holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of WTS shareholders.
How much WTS stock do institutions own?
Institutional investment managers disclosed approximately $10.00B in WTS holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was WTS institutional ownership last updated?
The latest WTS institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional WTS holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its WTS position after the reporting date.
Are institutions buying or selling WTS?
Institutional buying and selling can be analyzed by comparing WTS positions across consecutive 13F reporting periods. InsiderSet's WTS Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View WTS ownership changes.
How has WTS institutional ownership changed over time?
InsiderSet tracks WTS institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.