Watts Water Technologies Inc
Ownership
Ownership Structure
Who owns Watts Water Technologies Inc (WTS)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 98.7% of the shares are freely tradable; institutional investors hold 101.7%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 11.00 | 3,673,720 | +1.9 | 03/31/2026 |
| Kayne Anderson Rudnick Investment Management LLC | 6.37 | 2,127,314 | -0.9 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 4.97 | 1,660,725 | +0.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 3.67 | 1,226,383 | +0.0 | 03/31/2026 |
| Boston Partners Global Investors, Inc | 2.99 | 997,499 | +32.0 | 06/30/2026 |
| State Street Corp | 2.97 | 991,144 | +1.5 | 03/31/2026 |
| Geode Capital Management, LLC | 2.75 | 918,925 | +10.4 | 03/31/2026 |
| T. Rowe Price Associates, Inc. | 2.60 | 868,754 | +7.6 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Mid-Cap ETF | 2.88 | 962,224 | +0.0 | 08/31/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 2.62 | 874,883 | +0.3 | 07/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Raines Merilee | Director | 21,670 | 7,595,335 $ | Aug 3, 2026 | direct |
| Reitmeier Joseph William | Director | 12,144 | 4,256,472 $ | Aug 3, 2026 | direct |
| Melhem Elie | President- APAC, M. East, Afr. | 7,867 | 2,757,384 $ | Sep 4, 2026 | direct |
| Dubose Michael J. | Director | 2,270 | 795,635 $ | Aug 3, 2026 | direct |
| Boll Rebecca | Director | 1,976 | 692,588 $ | Aug 3, 2026 | direct |
| Napolitano Kenneth | Director | 1,810 | 634,405 $ | Aug 3, 2026 | direct |
| Noonan Joseph T | Director | 1,650 | 578,325 $ | Aug 3, 2026 | both |
| Stefany Suzanne | Director | 807 | 282,854 $ | Aug 3, 2026 | direct |
| Dunbar David A. | Director | 456 | 159,828 $ | Aug 3, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 4, 2026 | Melhem Elie | President- APAC, M. East, Afr. | Sell | 1,096 | 359.55 | 394,067 |
| Sep 1, 2026 | Noonan Joseph T | Director | Sell | 1,466 | 353.63 | 518,422 |
| Sep 1, 2026 | Noonan Joseph T | Director | Sell | 1,266 | 354.62 | 448,949 |
| Sep 1, 2026 | Noonan Joseph T | Director | Sell | 918 | 352.62 | 323,705 |
| Aug 20, 2026 | Noonan Joseph T | Director | Other | 3,650 | 0.00 | – |
| Aug 3, 2026 | Raines Merilee | Director | Other | 456 | 0.00 | – |
| Aug 3, 2026 | Napolitano Kenneth | Director | Other | 456 | 0.00 | – |
| Aug 3, 2026 | Stefany Suzanne | Director | Other | 456 | 0.00 | – |
| Aug 3, 2026 | Reitmeier Joseph William | Director | Other | 456 | 0.00 | – |
| Aug 3, 2026 | Noonan Joseph T | Director | Other | 456 | 0.00 | – |
| Aug 3, 2026 | Dubose Michael J. | Director | Other | 456 | 0.00 | – |
| Aug 3, 2026 | Boll Rebecca | Director | Other | 456 | 0.00 | – |
| Aug 3, 2026 | Dunbar David A. | Director | Other | 456 | 0.00 | – |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 17, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.