WATTS WATER TECHNOLOGIES-A (WTS) Institutional Shareholders
WATTS WATER TECHNOLOGIES-A (WTS) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $10.29B in WTS holdings during the latest filing period.
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 $988.88M, representing an estimated loss of -10.42% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 46% 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
559
Total Reported Value
$10.29B
Largest Holder
Blackrock, Inc.
Largest Position
$1.10B
Insider Transactions (90d)
13
Latest Filing Quarter
Q2 2026
New Institutional Positions
82
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 | $988,884,694 | -$115,030,422 | -10.42% | |
| Kayne Anderson Rudnick Investment Management Llc | 2.41% | 1,984,087 | $776,670,862 | $695,739,947 | -$80,930,915 | -10.42% | |
| Vanguard Portfolio Management Llc | 0.03% | 1,496,689 | $585,878,909 | $524,828,965 | -$61,049,944 | -10.42% | |
| Vanguard Capital Management Llc | 0.01% | 1,235,782 | $483,746,864 | $433,339,316 | -$50,407,548 | -10.42% | |
| Boston Partners | 0.35% | 997,499 | $389,900,757 | $349,782,999 | -$40,117,758 | -10.29% | |
| State Street Corp | 0.01% | 852,511 | $333,616,895 | $298,941,507 | -$34,675,388 | -10.39% | |
| Geode Capital Management, Llc | 0.02% | 767,575 | $300,519,517 | $269,157,850 | -$31,361,668 | -10.44% | |
| Price T Rowe Associates Inc | 0.03% | 673,229 | $263,536,000 | $236,074,481 | -$27,461,519 | -10.42% | |
| Capital World Investors | 0.03% | 659,012 | $257,970,247 | $231,089,148 | -$26,881,099 | -10.42% | |
| First Trust Advisors Lp | 0.13% | 546,475 | $213,917,638 | $191,626,924 | -$22,290,715 | -10.42% | |
| Impax Asset Management Group Plc | 1.38% | 543,412 | $212,718,627 | $190,552,852 | -$22,165,775 | -10.42% | |
| Dimensional Fund Advisors Lp | 0.04% | 526,726 | $206,127,014 | $184,701,739 | -$21,425,275 | -10.39% | |
| Invesco Ltd. | 0.02% | 509,483 | $199,437,120 | $178,655,309 | -$20,781,811 | -10.42% | |
| Pictet Asset Management Holding Sa | 0.18% | 489,605 | $191,600,073 | $171,684,889 | -$19,915,184 | -10.39% | |
| Mirova Us Llc | 1.73% | 412,095 | $161,314,588 | $144,505,233 | -$16,809,355 | -10.42% | |
| Aqr Capital Management Llc | 0.06% | 416,533 | $159,323,904 | $146,061,462 | -$13,262,442 | -8.32% | |
| Gamco Investors, Inc. Et Al | 1.40% | 399,032 | $156,201,076 | $139,924,561 | -$16,276,515 | -10.42% | |
| Boston Trust Walden Corp | 1.10% | 368,967 | $144,432,132 | $129,381,968 | -$15,050,164 | -10.42% | |
| Morgan Stanley | 0.01% | 327,665 | $128,265,174 | $114,899,009 | -$13,366,165 | -10.42% | |
| Charles Schwab Investment Management Inc | 0.02% | 325,015 | $127,227,122 | $113,969,760 | -$13,257,362 | -10.42% | |
| Neuberger Berman Group Llc | 0.08% | 314,261 | $123,017,468 | $110,198,762 | -$12,818,706 | -10.42% | |
| Northern Trust Corp | 0.01% | 260,683 | $102,044,359 | $91,411,101 | -$10,633,258 | -10.42% | |
| Port Capital Llc | 3.98% | 248,896 | $97,430,339 | $87,277,871 | -$10,152,468 | -10.42% | |
| Norges Bank | 0.01% | 241,492 | $94,532,043 | $84,681,585 | -$9,850,458 | -10.42% | |
| Ubs Group Ag | 0.01% | 239,210 | $93,638,754 | $83,881,379 | -$9,757,375 | -10.42% | |
| Goldman Sachs Group Inc | 0.01% | 226,766 | $88,767,772 | $79,517,766 | -$9,250,006 | -10.42% | |
| Kbc Group Nv | 0.18% | 214,737 | $84,059,000 | $75,299,676 | -$8,759,324 | -10.42% | |
| Bank Of New York Mellon Corp | 0.01% | 194,384 | $76,091,669 | $68,162,693 | -$7,928,976 | -10.42% | |
| Birch Hill Investment Advisors Llc | 3.08% | 194,171 | $76,008,238 | $68,088,003 | -$7,920,235 | -10.42% | |
| Wells Fargo & Company/Mn | 0.01% | 192,471 | $75,342,557 | $67,491,881 | -$7,850,676 | -10.42% | |
| Cartenna Capital, Lp | 2.75% | 190,000 | $74,375,500 | $66,625,400 | -$7,750,100 | -10.42% | |
| Renaissance Technologies LLC | Jim Simons | 0.10% | 179,940 | $70,437,513 | $63,097,760 | -$7,339,753 | -10.42% |
| Vanguard Fiduciary Trust Co | 0.01% | 173,611 | $67,960,026 | $60,878,433 | -$7,081,593 | -10.42% | |
| Victory Capital Management Inc | 0.04% | 171,183 | $67,009,585 | $60,027,031 | -$6,982,554 | -10.42% | |
| Polar Capital Holdings Plc | 0.18% | 163,097 | $63,844,321 | $57,191,594 | -$6,652,727 | -10.42% | |
| Jpmorgan Chase & Co | 0.00% | 169,527 | $61,291,253 | $59,446,338 | -$1,844,915 | -3.01% | |
| Gabelli Funds Llc | 0.39% | 156,556 | $61,283,846 | $54,897,927 | -$6,385,919 | -10.42% | |
| Raymond James Financial Inc | 0.02% | 148,332 | $58,064,595 | $52,014,099 | -$6,050,496 | -10.42% | |
| Hrt Financial Lp | 0.10% | 146,402 | $57,309,000 | $51,337,325 | -$5,971,675 | -10.42% | |
| Bnp Paribas Asset Management Holding S.A. | 0.06% | 144,758 | $56,665,519 | $50,760,840 | -$5,904,679 | -10.42% | |
| Eulav Asset Management | 1.73% | 138,766 | $54,319,972 | $48,659,686 | -$5,660,286 | -10.42% | |
| D. E. Shaw & Co., Inc. | 0.03% | 127,649 | $49,968,201 | $44,761,398 | -$5,206,803 | -10.42% | |
| Bank Of America Corp | 0.00% | 127,125 | $49,763,230 | $44,577,653 | -$5,185,578 | -10.42% | |
| Susquehanna International Group, Llp | 0.04% | 125,419 | $49,095,267 | $43,979,427 | -$5,115,840 | -10.42% | |
| Voya Investment Management Llc | 0.04% | 112,779 | $44,147,340 | $39,547,084 | -$4,600,256 | -10.42% | |
| Millennium Management Llc | 0.03% | 108,110 | $42,319,659 | $37,909,853 | -$4,409,806 | -10.42% | |
| Triodos Investment Management Bv | 2.50% | 105,000 | $41,102,250 | $36,819,300 | -$4,282,950 | -10.42% | |
| Legal & General Group Plc | 0.01% | 104,876 | $41,036,279 | $36,775,818 | -$4,260,461 | -10.38% | |
| Squarepoint Ops Llc | 0.08% | 104,815 | $41,029,832 | $36,754,428 | -$4,275,404 | -10.42% | |
| Aegon Asset Management Uk Plc | 0.40% | 95,231 | $37,278,175 | $33,393,702 | -$3,884,473 | -10.42% |
Frequently asked questions about WTS
Who owns the most WTS stock?
The largest holders of WTS are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for WATTS WATER TECHNOLOGIES-A (WTS).
Is WTS widely held by superinvestors?
Many widely followed stocks like WTS appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly WTS is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.