WTS · Insider trading · 13F holders · Congress trades
Watts Water Technologies Inc (WTS)
Who is buying and selling WTS: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 31
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $1.7M
- Congress trades, 12 months
- 1
WTS at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 2 WTS insiders filed 2 sales worth $1.7M on SEC Form 4, and no open-market purchases.
- 31 13F filers hold WTS among their 50 largest positions, worth $1.9B combined, including Mario Gabelli. The biggest bets by portfolio weight are Montanaro Asset Management Ltd (5.7%), Port Capital LLC (4.0%) and Cartenna Capital, LP (2.8%). In their latest 13Fs, 2 managers opened a new position and 4 added to one.
- Members of Congress have disclosed 4 WTS trades since 2014, 0 purchases and 1 sale in the past year; the latest was Donna E. Shalala (D-FL), selling $1K–15K on Jun 24, 2019.
- WTS last closed at $350.89 on Oct 29, 2026.
WTS insider trading
Between Aug 1, 2026 and Oct 29, 2026, 2 WTS insiders filed 2 sales worth $1.7M on SEC Form 4, and no open-market purchases.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Sep 8, 2026 | Melhem Elie | President- APAC, M. East, Afr. | Sale | 1,096 | $359.55 | $394K | SEC |
| Sep 2, 2026 | Noonan Joseph T | Director | Sale | 3,650 | $353.72 | $1.3M | SEC |
Who owns WTS? Hedge funds and superinvestors
31 13F filers hold WTS among their 50 largest positions, worth $1.9B combined, including Mario Gabelli. The biggest bets by portfolio weight are Montanaro Asset Management Ltd (5.7%), Port Capital LLC (4.0%) and Cartenna Capital, LP (2.8%). In their latest 13Fs, 2 managers opened a new position and 4 added to one.
Superinvestors holding WTS: Mario Gabelli 1.4%
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Kayne Anderson Rudnick Investment Management LLCAsset manager | 2.4% | $776.7M | 1,984,087 | -6.7% shares | Q2 2026 |
| Impax Asset Management Group plcMutual fund manager | 1.4% | $212.7M | 543,412 | -7.6% shares | Q2 2026 |
| Mirova US LLCHedge fund | 1.7% | $161.3M | 412,095 | -5.9% shares | Q2 2026 |
| Mario GabelliCorporation | 1.4% | $156.2M | 399,032 | -1.3% shares | Q2 2026 |
| Boston Trust Walden CorpMutual fund manager | 1.1% | $144.4M | 368,967 | -2.7% shares | Q2 2026 |
| Port Capital LLCHedge fund | 4.0% | $97.4M | 248,896 | -3.3% shares | Q2 2026 |
| Cartenna Capital, LPHedge fund | 2.8% | $74.4M | 190,000 | -20.8% shares | Q2 2026 |
| Birch Hill Investment Advisors LLCWealth manager | 2.7% | $66.8M | 188,553 | -2.9% shares | Q3 2026 |
| EULAV Asset ManagementMutual fund manager | 1.8% | $49.1M | 138,766 | +0.0% shares | Q3 2026 |
| Triodos Investment Management BVAsset manager | 2.5% | $41.1M | 105,000 | +22.1% shares | Q2 2026 |
| OP Asset Management LtdAsset manager | 0.4% | $38.4M | 98,085 | — | Q2 2026 |
| E. Ohman J:or Asset Management ABAsset manager | 0.6% | $26.4M | 74,667 | -2.3% shares | Q3 2026 |
| Montanaro Asset Management LtdAsset manager | 5.7% | $18.0M | 46,100 | +74.0% shares | Q2 2026 |
| North Growth Management Ltd.Investment manager | 2.3% | $16.9M | 48,000 | +2.1% shares | Q3 2026 |
| Burney Co/Wealth manager | 0.3% | $10.9M | 30,667 | -18.3% shares | Q3 2026 |
| Catalyst Funds Management Pty LtdHedge fund | 0.5% | $8.4M | 21,360 | — | Q2 2026 |
| Coppell Advisory Solutions LLCWealth manager | 0.4% | $5.0M | 22,407 | New | Q2 2026 |
| HWG Holdings LPHedge fund | 1.1% | $4.7M | 13,217 | +18.9% shares | Q3 2026 |
| Future Fund LLCSovereign wealth fund | 1.1% | $3.9M | 10,014 | +6.1% shares | Q2 2026 |
| Freedom Day Solutions, LLCWealth manager | 0.8% | $3.7M | 10,362 | -1.8% shares | Q3 2026 |
| Paralel Advisors LLCMutual fund manager | 0.1% | $3.1M | 7,958 | -39.3% shares | Q2 2026 |
| Ironwood Investment Management LLCWealth manager | 1.0% | $2.8M | 7,210 | +0.0% shares | Q2 2026 |
| Aster Capital Management (DIFC) LtdAsset manager | 0.6% | $2.7M | 6,921 | — | Q2 2026 |
| Weik Capital ManagementWealth manager | 0.9% | $2.3M | 5,850 | +0.0% shares | Q2 2026 |
| Laurus Global Equity Management Inc.Institutional asset manager | 1.4% | $1.5M | 5,100 | +0.0% shares | Q1 2026 |
| Ables, Iannone, Moore & Associates, Inc.Wealth manager | 0.7% | $1.3M | 3,704 | -1.2% shares | Q3 2026 |
| Vancity Investment Management LtdAsset manager | 0.2% | $1.3M | 3,304 | -17.2% shares | Q2 2026 |
| Richmond Brothers, Inc.Wealth manager | 0.7% | $1.3M | 3,212 | New | Q2 2026 |
| Michael J. Porro & Co. Financial Advisors, Inc.Wealth manager | 0.7% | $1.2M | 3,386 | +0.0% shares | Q3 2026 |
| Expressive Wealth LLCWealth manager | 0.7% | $763K | 1,950 | — | Q2 2026 |
The 30 largest of 31 positions, by value. Each manager counts with its latest 13F (Q3 2026: 9, Q2 2026: 21, Q1 2026: 1). Screen WTS in the grand portfolio →
WTS stock trades by members of Congress
Members of Congress have disclosed 4 WTS trades since 2014, 0 purchases and 1 sale in the past year; the latest was Donna E. Shalala (D-FL), selling $1K–15K on Jun 24, 2019.
| Filed | Member | Trade | Amount | Traded | Since |
|---|---|---|---|---|---|
| Apr 27, 2020 | Donna E. ShalalaD-FL · House | Sale | $1K–15K | Jun 24, 2019 | +281.8% |
| Jul 13, 2016 | Suzan K. DelBeneD-WA · House | Sale | $15K–50K | Jun 9, 2016 | +492.1% |
| Aug 10, 2015 | Suzan K. DelBeneD-WA · House | Buy | $1K–15K | Jul 27, 2015 | +622.9% |
| Jul 9, 2014 | Suzan K. DelBeneD-WA · House | Buy | $15K–50K | Jun 18, 2014 | +464.2% |
2 members have traded WTS: Donna E. Shalala, Suzan K. DelBene.
WTS questions and answers
Are insiders buying WTS stock?
Between Aug 1, 2026 and Oct 29, 2026, 2 WTS insiders filed 2 sales worth $1.7M on SEC Form 4, and no open-market purchases.
Which hedge funds own WTS?
31 13F filers hold WTS among their 50 largest positions, worth $1.9B combined, including Mario Gabelli. The biggest bets by portfolio weight are Montanaro Asset Management Ltd (5.7%), Port Capital LLC (4.0%) and Cartenna Capital, LP (2.8%). In their latest 13Fs, 2 managers opened a new position and 4 added to one.
Has Congress traded WTS?
Members of Congress have disclosed 4 WTS trades since 2014, 0 purchases and 1 sale in the past year; the latest was Donna E. Shalala (D-FL), selling $1K–15K on Jun 24, 2019.
Who is the largest holder of WTS?
Among 13F filers, Kayne Anderson Rudnick Investment Management LLC reports the largest WTS position, $776.7M (1,984,087 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Montanaro Asset Management Ltd's: 5.7% of its portfolio.
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