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 WRB
| 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 30, 2026 | SCHEDULE 13G/A (amended) | WRB W.R. Berkley Corporation | Vanguard Capital Management | 16.50M | 4.4% | SCHEDULE 13G/A ↗ |
| Oct 27, 2026 | SCHEDULE 13G/A (amended) | WRB W.R. Berkley Corporation | BlackRock, Inc. | 17.22M | 4.6% | SCHEDULE 13G/A ↗ |
| Jul 21, 2026 | SCHEDULE 13D/A (amended) | WRB W.R. Berkley Corporation | The William R. Berkley 2022 Family Trust f/b/o Lauren Berkley and Her Issue | 95.56M | 25.7% | SCHEDULE 13D/A ↗ |
| Jul 21, 2026 | SCHEDULE 13D/A (amended) | WRB W.R. Berkley Corporation | The William R. Berkley 2022 Family Trust f/b/o William R. Berkley, Jr. and His Issue | 95.56M | 25.7% | SCHEDULE 13D/A ↗ |
| Jul 21, 2026 | SCHEDULE 13D/A (amended) | WRB W.R. Berkley Corporation | The William R. Berkley 2011 GST Trust u/a dated December 20, 2011 | 95.56M | 25.7% | SCHEDULE 13D/A ↗ |
| Jul 21, 2026 | SCHEDULE 13D/A (amended) | WRB W.R. Berkley Corporation | W. Robert Berkley, Jr. | 95.56M | 25.7% | SCHEDULE 13D/A ↗ |
| Jul 21, 2026 | SCHEDULE 13D/A (amended) | WRB W.R. Berkley Corporation | Marjorie J. Berkley | 95.56M | 25.7% | SCHEDULE 13D/A ↗ |
| Jul 21, 2026 | SCHEDULE 13D/A (amended) | WRB W.R. Berkley Corporation | Estate of William R. Berkley | 95.56M | 25.7% | SCHEDULE 13D/A ↗ |
| Jul 21, 2026 | SCHEDULE 13D/A (amended) | WRB W.R. Berkley Corporation | WR Berkley & Others 2 LLC | 95.56M | 25.7% | SCHEDULE 13D/A ↗ |
| Jul 21, 2026 | SCHEDULE 13D/A (amended) | WRB W.R. Berkley Corporation | WR Berkley & Others LLC | 95.56M | 25.7% | SCHEDULE 13D/A ↗ |
| Jun 4, 2026 | SCHEDULE 13D/A (amended) | WRB W.R. Berkley Corporation | MS&AD Insurance Group Holdings, Inc. | 58.78M | 15.8% | SCHEDULE 13D/A ↗ |
| Jun 4, 2026 | SCHEDULE 13D/A (amended) | WRB W.R. Berkley Corporation | Mitsui Sumitomo Insurance Co., Ltd. | 58.78M | 15.8% | SCHEDULE 13D/A ↗ |
| Apr 30, 2026 | SCHEDULE 13G | WRB W.R. Berkley Corporation | Vanguard Capital Management | 21.73M | 5.8% | SCHEDULE 13G ↗ |
| Mar 27, 2026 | SCHEDULE 13G/A (amended) | WRB W.R. Berkley Corporation | The Vanguard Group | 0 | 0.0% | SCHEDULE 13G/A ↗ |
| Mar 5, 2026 | SCHEDULE 13D/A (amended) | WRB W.R. Berkley Corporation | The William R. Berkley 2022 Family Trust f/b/o Lauren Berkley and Her Issue | 95.55M | 25.5% | SCHEDULE 13D/A ↗ |
| Mar 5, 2026 | SCHEDULE 13D/A (amended) | WRB W.R. Berkley Corporation | The William R. Berkley 2022 Family Trust f/b/o William R. Berkley, Jr. and His Issue | 95.55M | 25.5% | SCHEDULE 13D/A ↗ |
| Mar 5, 2026 | SCHEDULE 13D/A (amended) | WRB W.R. Berkley Corporation | The William R. Berkley 2011 GST Trust u/a dated December 20, 2011 | 95.55M | 25.5% | SCHEDULE 13D/A ↗ |
| Mar 5, 2026 | SCHEDULE 13D/A (amended) | WRB W.R. Berkley Corporation | W. Robert Berkley, Jr. | 95.55M | 25.5% | SCHEDULE 13D/A ↗ |
| Mar 5, 2026 | SCHEDULE 13D/A (amended) | WRB W.R. Berkley Corporation | Marjorie J. Berkley | 95.55M | 25.5% | SCHEDULE 13D/A ↗ |
| Mar 5, 2026 | SCHEDULE 13D/A (amended) | WRB W.R. Berkley Corporation | William R. Berkley | 95.55M | 25.5% | SCHEDULE 13D/A ↗ |
| Mar 5, 2026 | SCHEDULE 13D/A (amended) | WRB W.R. Berkley Corporation | WR Berkley & Others 2 LLC | 95.55M | 25.5% | SCHEDULE 13D/A ↗ |
| Mar 5, 2026 | SCHEDULE 13D/A (amended) | WRB W.R. Berkley Corporation | WR Berkley & Others LLC | 95.55M | 25.5% | SCHEDULE 13D/A ↗ |
| Mar 5, 2026 | SCHEDULE 13D/A (amended) | WRB W.R. Berkley Corporation | MS&AD Insurance Group Holdings, Inc. | 58.78M | 15.7% | SCHEDULE 13D/A ↗ |
| Mar 5, 2026 | SCHEDULE 13D/A (amended) | WRB W.R. Berkley Corporation | Mitsui Sumitomo Insurance Co., Ltd. | 58.78M | 15.7% | SCHEDULE 13D/A ↗ |
| Feb 6, 2026 | SCHEDULE 13D/A (amended) | WRB W.R. Berkley Corporation | MS&AD Insurance Group Holdings, Inc. | 56.46M | 14.9% | SCHEDULE 13D/A ↗ |
| Feb 6, 2026 | SCHEDULE 13D/A (amended) | WRB W.R. Berkley Corporation | Mitsui Sumitomo Insurance Co., Ltd. | 56.46M | 14.9% | SCHEDULE 13D/A ↗ |
| Jan 14, 2026 | SCHEDULE 13D/A (amended) | WRB W.R. Berkley Corporation | MS&AD Insurance Group Holdings, Inc. | 52.73M | 13.9% | SCHEDULE 13D/A ↗ |
| Jan 14, 2026 | SCHEDULE 13D/A (amended) | WRB W.R. Berkley Corporation | Mitsui Sumitomo Insurance Co., Ltd. | 52.73M | 13.9% | SCHEDULE 13D/A ↗ |
| Dec 11, 2025 | SCHEDULE 13D | WRB W.R. Berkley Corporation | The William R. Berkley 2022 Family Trust f/b/o Lauren Berkley and Her Issue | 95.55M | 25.1% | SCHEDULE 13D ↗ |
| Dec 11, 2025 | SCHEDULE 13D | WRB W.R. Berkley Corporation | The William R. Berkley 2022 Family Trust f/b/o William R. Berkley, Jr. and His Issue | 95.55M | 25.1% | SCHEDULE 13D ↗ |
| Dec 11, 2025 | SCHEDULE 13D | WRB W.R. Berkley Corporation | The William R. Berkley 2011 GST Trust u/a dated December 20, 2011 | 95.55M | 25.1% | SCHEDULE 13D ↗ |
| Dec 11, 2025 | SCHEDULE 13D | WRB W.R. Berkley Corporation | W. Robert Berkley, Jr. | 95.55M | 25.1% | SCHEDULE 13D ↗ |
| Dec 11, 2025 | SCHEDULE 13D | WRB W.R. Berkley Corporation | Marjorie J. Berkley | 95.55M | 25.1% | SCHEDULE 13D ↗ |
| Dec 11, 2025 | SCHEDULE 13D | WRB W.R. Berkley Corporation | William R. Berkley | 95.55M | 25.1% | SCHEDULE 13D ↗ |
| Dec 11, 2025 | SCHEDULE 13D | WRB W.R. Berkley Corporation | WR Berkley & Others 2 LLC | 95.55M | 25.1% | SCHEDULE 13D ↗ |
| Dec 11, 2025 | SCHEDULE 13D | WRB W.R. Berkley Corporation | WR Berkley & Others LLC | 95.55M | 25.1% | SCHEDULE 13D ↗ |
| Dec 11, 2025 | SCHEDULE 13D | WRB W.R. Berkley Corporation | MS&AD Insurance Group Holdings, Inc. | 48.60M | 12.8% | SCHEDULE 13D ↗ |
| Dec 11, 2025 | SCHEDULE 13D | WRB W.R. Berkley Corporation | Mitsui Sumitomo Insurance Co., Ltd. | 48.60M | 12.8% | SCHEDULE 13D ↗ |
38 items, most recent first (up to 50). Every row links to its original filing. Updated Nov 15, 2026, 6:46 PM EST.
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