Feeds › Ownership stakes (13D / 13G)
Ownership stakes (13D / 13G)
Investors who own more than 5% of a company, from activists (13D) to passive holders (13G).
About this data
- What it is
- An investor who owns more than 5% of a public company must say so. Investors who may try to influence the company, such as activists, file the longer Schedule 13D; passive holders file the shorter Schedule 13G.
- Who files it
- The investor, within days of crossing 5%, and again whenever the stake changes materially.
- How current
- We collect new filings throughout the day on SEC business days.
- Worth knowing
- 13G filings are far more common than 13D. A 13D usually means the investor intends to push for changes, so it tends to get more attention.
All of this comes from public filings.
Source and freshness · Information, not investment advice (disclaimer).
Filings per day, last 30 days
13D (activist) 13G (passive)
Latest ownership filings
Showing: ticker WTS
| Filed | ScheduleBoth report a stake of more than 5%. A 13D is filed by investors who may try to influence the company, such as activists; a 13G by passive holders. | Company | Investor | Shares | % of shares | Filing |
|---|---|---|---|---|---|---|
| Oct 21, 2026 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Walter J. Flowers | 1.80M | 6.1% | SCHEDULE 13G/A ↗ |
| Oct 21, 2026 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Peter W. Horne | 1.53M | 5.3% | SCHEDULE 13G/A ↗ |
| Oct 21, 2026 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Deborah Horne | 1.67M | 5.7% | SCHEDULE 13G/A ↗ |
| Oct 21, 2026 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Daniel W. Horne | 1.67M | 5.7% | SCHEDULE 13G/A ↗ |
| Oct 21, 2026 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Timothy P. Horne | 5.90M | 17.7% | SCHEDULE 13G/A ↗ |
| Sep 4, 2026 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | BlackRock, Inc. | 2.75M | 10.0% | SCHEDULE 13G/A ↗ |
| Jul 30, 2026 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | BlackRock, Inc. | 2.70M | 9.8% | SCHEDULE 13G/A ↗ |
| Apr 30, 2026 | SCHEDULE 13G | WTS Watts Water Technologies, Inc. | Vanguard Capital Management | 1.44M | 5.2% | SCHEDULE 13G ↗ |
| Apr 30, 2026 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Walter J. Flowers | 1.80M | 6.1% | SCHEDULE 13G/A ↗ |
| Apr 30, 2026 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Peter W. Horne | 1.53M | 5.3% | SCHEDULE 13G/A ↗ |
| Apr 30, 2026 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Deborah Horne | 1.67M | 5.7% | SCHEDULE 13G/A ↗ |
| Apr 30, 2026 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Daniel W. Horne | 1.67M | 5.7% | SCHEDULE 13G/A ↗ |
| Apr 30, 2026 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Timothy P. Horne | 5.90M | 17.7% | SCHEDULE 13G/A ↗ |
| Apr 29, 2026 | SCHEDULE 13G | WTS Watts Water Technologies, Inc. | Vanguard Portfolio Management | 1.69M | 6.1% | SCHEDULE 13G ↗ |
| Mar 27, 2026 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | The Vanguard Group | 0 | 0.0% | SCHEDULE 13G/A ↗ |
| Feb 13, 2026 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Kayne Anderson Rudnick Investment Management, LLC | 2.15M | 7.8% | SCHEDULE 13G/A ↗ |
| Jan 30, 2026 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Walter J. Flowers | 1.80M | 6.2% | SCHEDULE 13G/A ↗ |
| Jan 30, 2026 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Peter W. Horne | 1.53M | 5.3% | SCHEDULE 13G/A ↗ |
| Jan 30, 2026 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Deborah Horne | 1.67M | 5.7% | SCHEDULE 13G/A ↗ |
| Jan 30, 2026 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Daniel W. Horne | 1.67M | 5.7% | SCHEDULE 13G/A ↗ |
| Jan 30, 2026 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Timothy P. Horne | 5.91M | 17.7% | SCHEDULE 13G/A ↗ |
| Jul 29, 2025 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Walter J. Flowers | 1.80M | 6.2% | SCHEDULE 13G/A ↗ |
| Jul 29, 2025 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Peter W. Horne | 1.53M | 5.3% | SCHEDULE 13G/A ↗ |
| Jul 29, 2025 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Deborah Horne | 1.67M | 5.7% | SCHEDULE 13G/A ↗ |
| Jul 29, 2025 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Daniel W. Horne | 1.67M | 5.7% | SCHEDULE 13G/A ↗ |
| Jul 29, 2025 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Timothy P. Horne | 5.93M | 17.8% | SCHEDULE 13G/A ↗ |
| Apr 29, 2025 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | BlackRock, Inc. | 3.50M | 12.8% | SCHEDULE 13G/A ↗ |
| Feb 13, 2025 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Kayne Anderson Rudnick Investment Management, LLC | 2.46M | 9.0% | SCHEDULE 13G/A ↗ |
| Feb 5, 2025 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Impax Asset Management (AIFM) Ltd | 127,050 | 0.5% | SCHEDULE 13G/A ↗ |
| Feb 5, 2025 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Impax Asset Management LTD | 963,992 | 3.5% | SCHEDULE 13G/A ↗ |
| Feb 5, 2025 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Impax Asset Management Group plc | 1.09M | 4.0% | SCHEDULE 13G/A ↗ |
| Jan 31, 2025 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Walter J. Flowers | 1.80M | 6.2% | SCHEDULE 13G/A ↗ |
| Jan 31, 2025 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Peter W. Horne | 1.53M | 5.3% | SCHEDULE 13G/A ↗ |
| Jan 31, 2025 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Deborah Horne | 1.67M | 5.7% | SCHEDULE 13G/A ↗ |
| Jan 31, 2025 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Daniel W. Horne | 1.67M | 5.7% | SCHEDULE 13G/A ↗ |
| Jan 31, 2025 | SCHEDULE 13G/A (amended) | WTS Watts Water Technologies, Inc. | Timothy P. Horne | 5.93M | 17.8% | SCHEDULE 13G/A ↗ |
36 items, most recent first (up to 50). Every row links to its original filing. Updated Nov 15, 2026, 6:42 PM EST.
Download CSV The rows of this feed, with the filters above. A download holds at most 10,000 rows; narrow the filters to get a smaller slice.
Other feeds: Congressional trades · Executive-branch trades · Bills in Congress · Roll-call votes · Corporate PAC donations · Lobbying · Capitol Hires · Lobbying and contracts · Government contracts · Insider trades · Planned insider sales · Executive pay · Institutional holdings (13F) · Short interest · Fails to deliver · Daily short volume · Wikipedia page views · App store ratings · H-1B visa applications · Stock splits · 8-K events · IPO filings · Deals · Private placements (Form D) · Merger clearances (HSR) · Layoff notices (WARN) · SEC enforcement · Patents · Clinical trial updates · FDA approvals and clearances