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 CLFD
| 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 19, 2026 | SCHEDULE 13G/A (amended) | CLFD Clearfield, Inc. | AIGH Capital Management LLC | 1.22M | 9.0% | SCHEDULE 13G/A ↗ |
| Oct 19, 2026 | SCHEDULE 13G/A (amended) | CLFD Clearfield, Inc. | Orin Hirschman | 1.22M | 9.0% | SCHEDULE 13G/A ↗ |
| Jul 27, 2026 | SCHEDULE 13G | CLFD Clearfield, Inc. | AIGH Capital Management LLC | 1.01M | 7.4% | SCHEDULE 13G ↗ |
| Jul 27, 2026 | SCHEDULE 13G | CLFD Clearfield, Inc. | Orin Hirschman | 1.01M | 7.4% | SCHEDULE 13G ↗ |
| Apr 15, 2026 | SCHEDULE 13G | CLFD Clearfield, Inc. | John Reilly | 710,200 | 5.1% | SCHEDULE 13G ↗ |
| Apr 15, 2026 | SCHEDULE 13G | CLFD Clearfield, Inc. | Richard Meisenberg | 710,200 | 5.1% | SCHEDULE 13G ↗ |
| Apr 15, 2026 | SCHEDULE 13G | CLFD Clearfield, Inc. | ACK Asset Management LLC | 710,200 | 5.1% | SCHEDULE 13G ↗ |
| Mar 26, 2026 | SCHEDULE 13G/A (amended) | CLFD Clearfield, Inc. | The Vanguard Group | 0 | 0.0% | SCHEDULE 13G/A ↗ |
| Feb 13, 2026 | SCHEDULE 13G/A (amended) | CLFD Clearfield, Inc. | Ronald G. Roth | 1.46M | 10.5% | SCHEDULE 13G/A ↗ |
| May 15, 2025 | SCHEDULE 13G | CLFD Clearfield, Inc. | Mairs and Power, Inc. | 852,255 | 6.0% | SCHEDULE 13G ↗ |
| May 13, 2025 | SCHEDULE 13G/A (amended) | CLFD Clearfield, Inc. | John Reilly | 687,200 | 4.9% | SCHEDULE 13G/A ↗ |
| May 13, 2025 | SCHEDULE 13G/A (amended) | CLFD Clearfield, Inc. | Richard Meisenberg | 687,200 | 4.9% | SCHEDULE 13G/A ↗ |
| May 13, 2025 | SCHEDULE 13G/A (amended) | CLFD Clearfield, Inc. | ACK Asset Management LLC | 687,200 | 4.9% | SCHEDULE 13G/A ↗ |
| Feb 14, 2025 | SCHEDULE 13G | CLFD Clearfield, Inc. | John Reilly | 720,000 | 5.0% | SCHEDULE 13G ↗ |
| Feb 14, 2025 | SCHEDULE 13G | CLFD Clearfield, Inc. | Richard Meisenberg | 720,000 | 5.0% | SCHEDULE 13G ↗ |
| Feb 14, 2025 | SCHEDULE 13G | CLFD Clearfield, Inc. | ACK Asset Management LLC | 720,000 | 5.0% | SCHEDULE 13G ↗ |
| Feb 12, 2025 | SCHEDULE 13G/A (amended) | CLFD Clearfield, Inc. | Ronald G. Roth | 1.44M | 10.2% | SCHEDULE 13G/A ↗ |
17 items, most recent first (up to 50). Every row links to its original filing. Updated Nov 15, 2026, 5:03 PM EST.
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