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 ACU
| 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 22, 2026 | SCHEDULE 13G/A (amended) | ACU Acme United Corporation. | The Capital Management Corporation | 375,161 | 9.8% | SCHEDULE 13G/A ↗ |
| Apr 2, 2026 | SCHEDULE 13G/A (amended) | ACU Acme United Corporation. | The Capital Management Corporation | 500,967 | 13.2% | SCHEDULE 13G/A ↗ |
| Feb 2, 2026 | SCHEDULE 13G/A (amended) | ACU Acme United Corporation. | North Star Investment Management Corporation | 252,624 | 6.6% | SCHEDULE 13G/A ↗ |
| Jan 30, 2026 | SCHEDULE 13G/A (amended) | ACU Acme United Corporation. | The Capital Management Corporation | 540,341 | 14.2% | SCHEDULE 13G/A ↗ |
| May 12, 2025 | SCHEDULE 13G/A (amended) | ACU Acme United Corporation. | William Mueller | 359,932 | 9.5% | SCHEDULE 13G/A ↗ |
| May 12, 2025 | SCHEDULE 13G/A (amended) | ACU Acme United Corporation. | Mink Brook Capital GP LLC | 359,932 | 9.5% | SCHEDULE 13G/A ↗ |
| May 12, 2025 | SCHEDULE 13G/A (amended) | ACU Acme United Corporation. | Mink Brook Asset Management LLC | 359,932 | 9.5% | SCHEDULE 13G/A ↗ |
| May 12, 2025 | SCHEDULE 13G/A (amended) | ACU Acme United Corporation. | Mink Brook Opportunity Fund LP | 138,637 | 3.7% | SCHEDULE 13G/A ↗ |
| May 12, 2025 | SCHEDULE 13G/A (amended) | ACU Acme United Corporation. | Mink Brook Partners LP | 221,295 | 5.8% | SCHEDULE 13G/A ↗ |
| Apr 15, 2025 | SCHEDULE 13G/A (amended) | ACU Acme United Corporation. | Dimensional Fund Advisors LP | 174,338 | 4.6% | SCHEDULE 13G/A ↗ |
| Feb 6, 2025 | SCHEDULE 13G/A (amended) | ACU Acme United Corporation. | The Capital Management Corporation | 569,849 | 15.3% | SCHEDULE 13G/A ↗ |
| Jan 7, 2025 | SCHEDULE 13G/A (amended) | ACU Acme United Corporation. | North Star Investment Management Corporation | 299,403 | 8.0% | SCHEDULE 13G/A ↗ |
12 items, most recent first (up to 50). Every row links to its original filing. Updated Nov 15, 2026, 6:45 PM EST.
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