WATTS WATER TECHNOLOGIES INC WTS
CL A · Common Stock · CUSIP 942749102 · ISIN US9427491025
American manufacturing company
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($44.5m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $388.39. Options: 6 managers hold calls ($82.3m notional), 4 hold puts ($4.0m).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 302 |
| Q4 2022 | 313 |
| Q1 2023 | 334 |
| Q2 2023 | 337 |
| Q3 2023 | 355 |
| Q4 2023 | 393 |
| Q1 2024 | 400 |
| Q2 2024 | 411 |
| Q3 2024 | 405 |
| Q4 2024 | 416 |
| Q1 2025 | 434 |
| Q2 2025 | 462 |
| Q3 2025 | 473 |
| Q4 2025 | 490 |
| Q1 2026 | 520 |
| Q2 2026 | 578 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 178 | 203 |
| Q4 2024 | 179 | 164 |
| Q1 2025 | 211 | 180 |
| Q2 2025 | 233 | 194 |
| Q3 2025 | 215 | 200 |
| Q4 2025 | 197 | 213 |
| Q1 2026 | 269 | 183 |
| Q2 2026 | 285 | 239 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $7.4m | $6.3m | 0.85 |
| Q4 2025 | $6.0m | $7.1m | 1.19 |
| Q1 2026 | $6.3m | $4.8m | 0.77 |
| Q2 2026 | $82.3m | $4.0m | 0.05 |
Biggest buyers
| Capital World Investors | New | +659.0k |
| Pictet Asset Management Holding SA | Added | +470.7k |
| Boston Partners | Added | +241.6k |
| UBS Group AG | Added | +160.2k |
| HRT FINANCIAL LP | New | +146.4k |
| MORGAN STANLEY | Added | +129.1k |
| D. E. Shaw & Co., Inc. | Added | +124.6k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | +116.4k |
| Squarepoint Ops LLC | Added | +103.6k |
| MILLENNIUM MANAGEMENT LLC | Added | +101.9k |
Biggest sellers
| BlackRock, Inc. | Reduced | -853.7k |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | -195.5k |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | -164.0k |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | -151.3k |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | Reduced | -143.2k |
| STATE STREET CORP | Reduced | -138.6k |
| LAZARD ASSET MANAGEMENT LLC | Reduced | -123.8k |
| ALGERT GLOBAL LLC | Reduced | -105.0k |
| NORTHERN TRUST CORP | Reduced | -100.3k |
| Nuveen, LLC | Reduced | -80.7k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $29.8m76.1k shares |
| JANE STREET GROUP, LLC | Added | $26.5m67.7k shares |
| PEAK6 LLC | Added | $20.2m51.7k shares |
| CITADEL ADVISORS LLC | Added | $4.3m11.1k shares |
| SIMPLEX TRADING, LLC | Added | $1.3m3.4k shares |
| GROUP ONE TRADING LLC | New | $117.4k300 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $1.6m4.0k shares |
| PEAK6 LLC | Unchanged | $1.5m3.8k shares |
| CITADEL ADVISORS LLC | Reduced | $900.3k2.3k shares |
| SIMPLEX TRADING, LLC | New | $39.1k100 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| HORNE TIMOTHY P 13G · exempt (held before listing) no change · filed 2026-10-21 | 17.7% |
| BlackRock, Inc. 13G · institution +0.2 pts · filed 2026-09-04 | 10.0% |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 13G · institution -1.2 pts · filed 2026-02-13 | 7.8% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 6.1% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 | 5.2% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 4 | $8.2m | — |
| Q1 2025 | 0 | — | 1 | $925.7k | — |
| Q2 2025 | 0 | — | 2 | $2.1m | — |
| Q3 2025 | 0 | — | 2 | $396.9k | — |
| Q4 2025 | 0 | — | 1 | $167.5k | — |
| Q1 2026 | 0 | — | 4 | $8.1m | $1.1m |
| Q2 2026 | 0 | — | 2 | $802.6k | — |
| Q3 2026 | 0 | — | 2 | $1.7m | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-09-04 | Melhem Elie President- APAC, M. East, Afr. | Sold | $394.1k1.1k shares |
| 2026-09-01 | Noonan Joseph T Director · By Trust | Sold | $1.3m3.6k shares |
| 2026-05-28 | Dubose Michael J. Director | Sold | $123.2k398 shares |
| 2026-05-13 | Melhem Elie President- APAC, M. East, Afr. | Sold | $679.4k2.3k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.02% of their portfolio | 2.8m $1.1bn | Reduced -853.7k |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 2.41% of their portfolio | 2.0m $776.7m | Reduced -143.2k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.03% of their portfolio | 1.5m $585.9m | Reduced -164.0k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 1.2m $483.7m | Added +9.4k |
| Boston Partners 0.35% of their portfolio | 997.5k $389.9m | Added +241.6k |
| STATE STREET CORP 0.01% of their portfolio | 852.5k $333.6m | Reduced -138.6k |
| GEODE CAPITAL MANAGEMENT, LLC 0.02% of their portfolio | 767.6k $300.5m | Reduced -151.3k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.03% of their portfolio | 673.2k $263.5m | Reduced -195.5k |
| Capital World Investors 0.03% of their portfolio | 659.0k $258.0m | New |
| FIRST TRUST ADVISORS LP 0.13% of their portfolio | 546.5k $213.9m | Added +1.1k |
| Impax Asset Management Group plc 1.38% of their portfolio | 543.4k $212.7m | Reduced -44.6k |
| DIMENSIONAL FUND ADVISORS LP 0.04% of their portfolio | 526.7k $206.1m | Added +5.4k |
| Invesco Ltd. 0.02% of their portfolio | 509.5k $199.4m | Added +38.3k |
| Pictet Asset Management Holding SA 0.18% of their portfolio | 489.6k $191.6m | Added +470.7k |
| AQR CAPITAL MANAGEMENT LLC 0.06% of their portfolio | 416.5k $159.3m | Reduced -6.1k |
| Mirova US LLC 1.73% of their portfolio | 412.1k $161.3m | Reduced -25.8k |
| GAMCO INVESTORS, INC. ET AL 1.40% of their portfolio | 399.0k $156.2m | Reduced -5.1k |
| Boston Trust Walden Corp 1.10% of their portfolio | 369.0k $144.4m | Reduced -10.1k |
| MORGAN STANLEY 0.01% of their portfolio | 327.7k $128.3m | Added +129.1k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.02% of their portfolio | 325.0k $127.2m | Reduced -59.6k |
| NEUBERGER BERMAN GROUP LLC 0.08% of their portfolio | 314.3k $123.0m | Added +48.2k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 260.7k $102.0m | Reduced -100.3k |
| Port Capital LLC 3.98% of their portfolio | 248.9k $97.4m | Reduced -8.5k |
| NORGES BANK 0.01% of their portfolio | 241.5k $94.5m | Not comparable |
| UBS Group AG 0.01% of their portfolio | 239.2k $93.6m | Added +160.2k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 226.8k $88.8m | Reduced -54.6k |
| KBC Group NV 0.18% of their portfolio | 214.7k $84.1m | Reduced -75 |
| Bank of New York Mellon Corp 0.01% of their portfolio | 194.4k $76.1m | Reduced -33.9k |
| Birch Hill Investment Advisors LLC 3.08% of their portfolio | 194.2k $76.0m | Added +4.9k |
| WELLS FARGO & COMPANY/MN 0.01% of their portfolio | 192.5k $75.3m | Reduced -19.9k |
| Cartenna Capital, LP 2.75% of their portfolio | 190.0k $74.4m | Reduced -50.0k |
| Amundi 0.02% of their portfolio | 184.8k $72.3m | Added +28.1k |
| RENAISSANCE TECHNOLOGIES LLC 0.10% of their portfolio | 179.9k $70.4m | Added +44.8k |
| VANGUARD FIDUCIARY TRUST CO 0.01% of their portfolio | 173.6k $68.0m | Reduced -17.1k |
| VICTORY CAPITAL MANAGEMENT INC 0.04% of their portfolio | 171.2k $67.0m | Added +12.1k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 169.5k $61.3m | Reduced -5.2k |
| Polar Capital Holdings Plc 0.18% of their portfolio | 163.1k $63.8m | Added +36.6k |
| AE Wealth Management LLC 0.29% of their portfolio | 157.1k $61.5m | Added +11.6k |
| GABELLI FUNDS LLC 0.39% of their portfolio | 156.6k $61.3m | Added +2.5k |
| RAYMOND JAMES FINANCIAL INC 0.02% of their portfolio | 148.3k $58.1m | Reduced -1.9k |
| HRT FINANCIAL LP 0.14% of their portfolio | 146.4k $57.3m | New |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.06% of their portfolio | 144.8k $56.7m | Reduced -32.9k |
| Livforsakringsbolaget Skandia, Omsesidigt 0.28% of their portfolio | 141.2k $8.6m | Unchanged |
| EULAV Asset Management 1.73% of their portfolio | 138.8k $54.3m | Added +9.9k |
| D. E. Shaw & Co., Inc. 0.03% of their portfolio | 127.6k $50.0m | Added +124.6k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 127.1k $49.8m | Reduced -6.7k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.04% of their portfolio | 125.4k $49.1m | Added +116.4k |
| VOYA INVESTMENT MANAGEMENT LLC 0.04% of their portfolio | 112.8k $44.1m | Added +60.5k |
| MILLENNIUM MANAGEMENT LLC 0.03% of their portfolio | 108.1k $42.3m | Added +101.9k |
| Triodos Investment Management BV 2.50% of their portfolio | 105.0k $41.1m | Added +19.0k |
| Legal & General Group Plc 0.01% of their portfolio | 104.9k $41.0m | Added +1.3k |
| Squarepoint Ops LLC 0.08% of their portfolio | 104.8k $41.0m | Added +103.6k |
| OP Asset Management Ltd 0.41% of their portfolio | 98.1k $38.4m | Added +52.0k |
| AEGON ASSET MANAGEMENT UK Plc 0.40% of their portfolio | 95.2k $37.3m | Added +24.9k |
| LAZARD ASSET MANAGEMENT LLC 0.06% of their portfolio | 95.1k $37.2m | Reduced -123.8k |
| STOREBRAND ASSET MANAGEMENT AS 0.09% of their portfolio | 94.8k $37.1m | Added +5.3k |
| Allianz Asset Management GmbH 0.03% of their portfolio | 94.8k $27.5m | Added +24 |
| PRINCIPAL FINANCIAL GROUP INC 0.02% of their portfolio | 86.4k $33.8m | Added +2.4k |
| Robeco Schweiz AG 0.53% of their portfolio | 85.1k $33.3m | Added +22.1k |
| Alyeska Investment Group, L.P. 0.08% of their portfolio | 84.2k $33.0m | New |
| Schonfeld Strategic Advisors LLC 0.17% of their portfolio | 84.1k $32.9m | Added +82.4k |
| RHUMBLINE ADVISERS 0.02% of their portfolio | 82.5k $32.3m | Reduced -6.1k |
| FEDERATED HERMES, INC. 0.05% of their portfolio | 81.8k $32.0m | Added +1.9k |
| Russell Investments Group, Ltd. 0.03% of their portfolio | 78.5k $30.7m | Reduced -756 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.01% of their portfolio | 78.5k $30.7m | Added +6.6k |
| FIL Ltd 0.02% of their portfolio | 76.5k $30.0m | Reduced -842 |
| E. Ohman J:or Asset Management AB 0.70% of their portfolio | 76.4k $29.9m | Added +11.9k |
| Jupiter Topco LLC 0.01% of their portfolio | 75.1k $29.4m | First filing |
| LORD, ABBETT & CO. LLC 0.08% of their portfolio | 75.0k $29.4m | New |
| GROUPAMA ASSET MANAGMENT 0.37% of their portfolio | 74.9k $29.3m | Reduced -7.7k |
| FULLER & THALER ASSET MANAGEMENT, INC. 0.07% of their portfolio | 70.2k $27.5m | Added +26.6k |
| JUPITER ASSET MANAGEMENT LTD 0.14% of their portfolio | 69.9k $27.4m | Reduced -14.4k |
| California Public Employees Retirement System 0.01% of their portfolio | 65.7k $25.7m | Added +5.4k |
| SEI INVESTMENTS CO 0.02% of their portfolio | 64.2k $25.1m | Added +3.6k |
| Point72 Asset Management, L.P. 0.04% of their portfolio | 62.2k $24.3m | Added +42.7k |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.05% of their portfolio | 61.6k $24.1m | Reduced -1.3k |
| Perpetual Ltd 0.34% of their portfolio | 61.0k $23.9m | Added +181 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.01% of their portfolio | 57.1k $22.4m | Added +33.4k |
| Erste Asset Management GmbH 0.15% of their portfolio | 55.5k $19.9m | Added +19.9k |
| Swiss National Bank 0.01% of their portfolio | 53.7k $21.0m | Reduced -520 |
| PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO 0.07% of their portfolio | 53.1k $20.8m | Added +12.7k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.39% of their portfolio | 52.6k $20.6m | Added +51.8k |
| OBERWEIS ASSET MANAGEMENT INC/ 0.41% of their portfolio | 50.8k $19.9m | New |
| DEUTSCHE BANK AG\ 0.01% of their portfolio | 47.9k $18.7m | Reduced -42.2k |
| FMR LLC 0.00% of their portfolio | 47.3k $18.5m | Reduced -5.9k |
| FRONTIER CAPITAL MANAGEMENT CO LLC 0.17% of their portfolio | 47.0k $18.4m | New |
| North Growth Management Ltd. 2.35% of their portfolio | 47.0k $18.4m | Unchanged |
| DUFF & PHELPS INVESTMENT MANAGEMENT CO 0.17% of their portfolio | 46.6k $18.3m | Added +9.3k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 46.5k $18.2m | Added +5.3k |
| Champlain Investment Partners, LLC 0.47% of their portfolio | 46.4k $18.2m | Reduced -8.4k |
| Montanaro Asset Management Ltd 5.69% of their portfolio | 46.1k $18.0m | Added +19.6k |
| DekaBank Deutsche Girozentrale 0.02% of their portfolio | 46.1k $13.0m | Unchanged |
| Retirement Systems of Alabama 0.05% of their portfolio | 45.5k $17.8m | Reduced -5.2k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 45.5k $13.2m | Reduced -22.1k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.04% of their portfolio | 45.4k $17.8m | Reduced -5.0k |
| Handelsbanken Fonder AB 0.05% of their portfolio | 44.7k $17.5m | Reduced -4.7k |
| Weiss Asset Management LP 0.19% of their portfolio | 44.3k $17.4m | Not comparable |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main 0.01% of their portfolio | 43.8k $17.1m | Added +270 |
| MARSHALL WACE, LLP 0.01% of their portfolio | 43.6k $17.1m | New |
| Nuveen, LLC 0.00% of their portfolio | 42.4k $16.6m | Reduced -80.7k |