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 NIOBW
| 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 |
|---|---|---|---|---|---|---|
| Jul 29, 2026 | SCHEDULE 13G | NB NioCorp Developments Ltd. | BlackRock, Inc. | 9.01M | 6.2% | SCHEDULE 13G ↗ |
| Apr 27, 2026 | SCHEDULE 13G/A (amended) | NB NioCorp Developments Ltd. | BlackRock, Inc. | 6.81M | 4.8% | SCHEDULE 13G/A ↗ |
| Apr 8, 2026 | SCHEDULE 13G | NB NioCorp Developments Ltd. | Kenneth Griffin | 6.22M | 4.3% | SCHEDULE 13G ↗ |
| Apr 8, 2026 | SCHEDULE 13G | NB NioCorp Developments Ltd. | Citadel Securities GP LLC | 1.28M | 0.9% | SCHEDULE 13G ↗ |
| Apr 8, 2026 | SCHEDULE 13G | NB NioCorp Developments Ltd. | Citadel Securities Group LP | 1.28M | 0.9% | SCHEDULE 13G ↗ |
| Apr 8, 2026 | SCHEDULE 13G | NB NioCorp Developments Ltd. | Citadel Securities LLC | 441,050 | 0.3% | SCHEDULE 13G ↗ |
| Apr 8, 2026 | SCHEDULE 13G | NB NioCorp Developments Ltd. | Citadel GP LLC | 4.93M | 3.4% | SCHEDULE 13G ↗ |
| Apr 8, 2026 | SCHEDULE 13G | NB NioCorp Developments Ltd. | Citadel Advisors Holdings LP | 4.93M | 3.4% | SCHEDULE 13G ↗ |
| Apr 8, 2026 | SCHEDULE 13G | NB NioCorp Developments Ltd. | Citadel Advisors LLC | 4.93M | 3.4% | SCHEDULE 13G ↗ |
| Feb 17, 2026 | SCHEDULE 13G/A (amended) | NB NioCorp Developments Ltd. | Kenneth Griffin | 507,790 | 0.4% | SCHEDULE 13G/A ↗ |
| Feb 17, 2026 | SCHEDULE 13G/A (amended) | NB NioCorp Developments Ltd. | Citadel Securities GP LLC | 471,602 | 0.4% | SCHEDULE 13G/A ↗ |
| Feb 17, 2026 | SCHEDULE 13G/A (amended) | NB NioCorp Developments Ltd. | Citadel Securities Group LP | 471,602 | 0.4% | SCHEDULE 13G/A ↗ |
| Feb 17, 2026 | SCHEDULE 13G/A (amended) | NB NioCorp Developments Ltd. | Citadel Securities LLC | 308,483 | 0.3% | SCHEDULE 13G/A ↗ |
| Feb 17, 2026 | SCHEDULE 13G/A (amended) | NB NioCorp Developments Ltd. | Citadel GP LLC | 36,188 | 0.0% | SCHEDULE 13G/A ↗ |
| Feb 17, 2026 | SCHEDULE 13G/A (amended) | NB NioCorp Developments Ltd. | Citadel Advisors Holdings LP | 36,188 | 0.0% | SCHEDULE 13G/A ↗ |
| Feb 17, 2026 | SCHEDULE 13G/A (amended) | NB NioCorp Developments Ltd. | Citadel Advisors LLC | 36,188 | 0.0% | SCHEDULE 13G/A ↗ |
| Jan 21, 2026 | SCHEDULE 13G | NB NioCorp Developments Ltd. | BlackRock, Inc. | 6.18M | 5.2% | SCHEDULE 13G ↗ |
| Nov 14, 2025 | SCHEDULE 13G/A (amended) | NB NioCorp Developments Ltd. | Kenneth Griffin | 7.95M | 8.2% | SCHEDULE 13G/A ↗ |
| Nov 14, 2025 | SCHEDULE 13G/A (amended) | NB NioCorp Developments Ltd. | Citadel Securities GP LLC | 345,182 | 0.4% | SCHEDULE 13G/A ↗ |
| Nov 14, 2025 | SCHEDULE 13G/A (amended) | NB NioCorp Developments Ltd. | Citadel Securities Group LP | 345,182 | 0.4% | SCHEDULE 13G/A ↗ |
| Nov 14, 2025 | SCHEDULE 13G/A (amended) | NB NioCorp Developments Ltd. | Citadel Securities LLC | 345,182 | 0.4% | SCHEDULE 13G/A ↗ |
| Nov 14, 2025 | SCHEDULE 13G/A (amended) | NB NioCorp Developments Ltd. | Citadel GP LLC | 7.61M | 7.9% | SCHEDULE 13G/A ↗ |
| Nov 14, 2025 | SCHEDULE 13G/A (amended) | NB NioCorp Developments Ltd. | Citadel Advisors Holdings LP | 7.61M | 7.9% | SCHEDULE 13G/A ↗ |
| Nov 14, 2025 | SCHEDULE 13G/A (amended) | NB NioCorp Developments Ltd. | Citadel Advisors LLC | 7.61M | 7.9% | SCHEDULE 13G/A ↗ |
| Jul 25, 2025 | SCHEDULE 13G | NB NioCorp Developments Ltd. | Kenneth Griffin | 3.90M | 5.4% | SCHEDULE 13G ↗ |
| Jul 25, 2025 | SCHEDULE 13G | NB NioCorp Developments Ltd. | Citadel Securities GP LLC | 130,423 | 0.2% | SCHEDULE 13G ↗ |
| Jul 25, 2025 | SCHEDULE 13G | NB NioCorp Developments Ltd. | Citadel Securities Group LP | 130,423 | 0.2% | SCHEDULE 13G ↗ |
| Jul 25, 2025 | SCHEDULE 13G | NB NioCorp Developments Ltd. | Citadel Securities LLC | 130,423 | 0.2% | SCHEDULE 13G ↗ |
| Jul 25, 2025 | SCHEDULE 13G | NB NioCorp Developments Ltd. | Citadel GP LLC | 3.77M | 5.2% | SCHEDULE 13G ↗ |
| Jul 25, 2025 | SCHEDULE 13G | NB NioCorp Developments Ltd. | Citadel Advisors Holdings LP | 3.77M | 5.2% | SCHEDULE 13G ↗ |
| Jul 25, 2025 | SCHEDULE 13G | NB NioCorp Developments Ltd. | Citadel Advisors LLC | 3.77M | 5.2% | SCHEDULE 13G ↗ |
31 items, most recent first (up to 50). Every row links to its original filing. Updated Nov 15, 2026, 6:41 PM EST.
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