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 AVLN
| 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 |
|---|---|---|---|---|---|---|
| Aug 14, 2026 | SCHEDULE 13G | AVLN Avalyn Pharma Inc. | Novo Holdings A/S | 3.88M | 8.8% | SCHEDULE 13G ↗ |
| Aug 11, 2026 | SCHEDULE 13G | AVLN Avalyn Pharma Inc. | Jon Erik Kossow | 2.27M | 5.1% | SCHEDULE 13G ↗ |
| Aug 11, 2026 | SCHEDULE 13G | AVLN Avalyn Pharma Inc. | Jeffrey Crowe | 2.27M | 5.1% | SCHEDULE 13G ↗ |
| Aug 11, 2026 | SCHEDULE 13G | AVLN Avalyn Pharma Inc. | NVP Associates, LLC | 2.27M | 5.1% | SCHEDULE 13G ↗ |
| Aug 11, 2026 | SCHEDULE 13G | AVLN Avalyn Pharma Inc. | Genesis VC Partners XV, LLC | 2.27M | 5.1% | SCHEDULE 13G ↗ |
| Aug 11, 2026 | SCHEDULE 13G | AVLN Avalyn Pharma Inc. | Norwest Venture Partners XV, LP | 2.27M | 5.1% | SCHEDULE 13G ↗ |
| Aug 6, 2026 | SCHEDULE 13G/A (amended) | AVLN Avalyn Pharma Inc. | Abigail P. Johnson | 5.84M | 13.2% | SCHEDULE 13G/A ↗ |
| Aug 6, 2026 | SCHEDULE 13G/A (amended) | AVLN Avalyn Pharma Inc. | FMR LLC | 5.84M | 13.2% | SCHEDULE 13G/A ↗ |
| May 8, 2026 | SCHEDULE 13D | AVLN Avalyn Pharma Inc. | George Simeon | 3.31M | 7.5% | SCHEDULE 13D ↗ |
| May 8, 2026 | SCHEDULE 13D | AVLN Avalyn Pharma Inc. | SR One Capital SMA Partners, LP | 1.12M | 2.5% | SCHEDULE 13D ↗ |
| May 8, 2026 | SCHEDULE 13D | AVLN Avalyn Pharma Inc. | Amzl, LP | 1.12M | 2.5% | SCHEDULE 13D ↗ |
| May 8, 2026 | SCHEDULE 13D | AVLN Avalyn Pharma Inc. | SR One Capital Partners II, LP | 2.19M | 4.9% | SCHEDULE 13D ↗ |
| May 8, 2026 | SCHEDULE 13D | AVLN Avalyn Pharma Inc. | SR One Capital Fund II Aggregator, LP | 2.19M | 4.9% | SCHEDULE 13D ↗ |
| May 8, 2026 | SCHEDULE 13D | AVLN Avalyn Pharma Inc. | SR One Capital Management, LLC | 3.31M | 7.5% | SCHEDULE 13D ↗ |
| May 8, 2026 | SCHEDULE 13D | AVLN Avalyn Pharma Inc. | Aaron Cowen | 2.50M | 5.6% | SCHEDULE 13D ↗ |
| May 8, 2026 | SCHEDULE 13D | AVLN Avalyn Pharma Inc. | Averill Madison Master Fund, Ltd. | 323,826 | 0.7% | SCHEDULE 13D ↗ |
| May 8, 2026 | SCHEDULE 13D | AVLN Avalyn Pharma Inc. | Averill Master Fund, Ltd. | 2.18M | 4.9% | SCHEDULE 13D ↗ |
| May 8, 2026 | SCHEDULE 13D | AVLN Avalyn Pharma Inc. | Suvretta Capital Management, LLC | 2.50M | 5.6% | SCHEDULE 13D ↗ |
| May 7, 2026 | SCHEDULE 13G | AVLN Avalyn Pharma Inc. | Perceptive Xontogeny Venture Fund II, L.P | 2.25M | 5.1% | SCHEDULE 13G ↗ |
| May 7, 2026 | SCHEDULE 13G | AVLN Avalyn Pharma Inc. | Perceptive Life Sciences Master Fund, Ltd. | 425,000 | 1.0% | SCHEDULE 13G ↗ |
| May 7, 2026 | SCHEDULE 13G | AVLN Avalyn Pharma Inc. | Joseph Edelman | 2.68M | 6.0% | SCHEDULE 13G ↗ |
| May 7, 2026 | SCHEDULE 13G | AVLN Avalyn Pharma Inc. | Perceptive Advisors LLC | 2.68M | 6.0% | SCHEDULE 13G ↗ |
| May 5, 2026 | SCHEDULE 13G | AVLN Avalyn Pharma Inc. | Abigail P. Johnson | 4.79M | 11.5% | SCHEDULE 13G ↗ |
| May 5, 2026 | SCHEDULE 13G | AVLN Avalyn Pharma Inc. | FMR LLC | 4.79M | 11.5% | SCHEDULE 13G ↗ |
24 items, most recent first (up to 50). Every row links to its original filing. Updated Nov 15, 2026, 6:51 PM EST.
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