| 2026-08-10 | Press release | NioCorp to Host Webcast on Aug. 11 to Discuss Elk Creek Feasibility Study Results |
| 2026-08-10 | Press release | NioCorp Project to Expand Production to 8 Made-in-USA Critical Minerals Over a 40-Year Mine Life with an Estimated $4.1 |
| 2026-08-10 | Press release | NioCorp to Host Webcast on Aug. 11 to Discuss Elk Creek Feasibility Study Results |
| 2026-08-04 | Press release | Lockheed Martin and NioCorp Sign MOU |
| 2026-08-04 | Press release | Lockheed Martin and NioCorp Sign MOU |
| 2026-07-13 | Press release | NioCorp to Appear on CNBC’s “Squawk Box Asia” Program Today at 8:30 p.m. ET |
| 2026-07-13 | Press release | NioCorp to Appear on CNBC’s “Squawk Box Asia” Program Today at 8:30 p.m. ET |
| 2026-07-08 | 8-K | Form 8-K, Item 5.02 |
| 2026-06-01 | Press release | China Is Closing the Door on Heavy Rare Earth Exports for Good, NioCorp CEO Warns in Fox News Op-Ed |
| 2026-05-20 | Deck | Investor presentation · May 2026 |
| 2026-05-14 | 10-Q | Form 10-Q for the quarter ended Mar 31 |
| 2026-04-20 | Press release | Nebraska Passes Law Giving NioCorp More Flexibility in Achieving State Tax Incentives |
| 2026-04-20 | Press release | Nebraska Passes Law Giving NioCorp More Flexibility in Achieving State Tax Incentives |
| 2026-04-15 | Press release | NioCorp to Participate in Maxim Group’s “Mining the Industrial Supply Chain” Conference on Apr. 21 |
| 2026-04-15 | Press release | NioCorp to Participate in Maxim Group’s “Mining the Industrial Supply Chain” Conference on Apr. 21 |
| 2026-04-09 | Press release | NioCorp Reaches Non-Binding Agreement with Traxys North America for Potential Purchase of All of NioCorp’s Remaining Pla |
| 2026-04-09 | Press release | NioCorp Reaches Non-Binding Agreement with Traxys North America for Potential Purchase of All of NioCorp’s Remaining Pla |
| 2026-04-06 | 8-K | Form 8-K, Item 1.01 |
| 2026-03-19 | Document | April 2026 |
| 2026-03-04 | Press release | NioCorp to Host Live Webinar on Construction of Elk Creek Critical Minerals Project Mine Portal |
| 2026-03-04 | Press release | Congressman Adrian Smith Starts Dig of NioCorp’s Elk Creek Project Mine Portal |
| 2026-03-04 | Press release | NioCorp to Host Live Webinar on Construction of Elk Creek Critical Minerals Project Mine Portal |
| 2026-03-04 | Press release | Congressman Adrian Smith Starts Dig of NioCorp’s Elk Creek Project Mine Portal |
| 2026-02-26 | Press release | NioCorp Launches Construction of Elk Creek Critical Minerals Project Mine Portal |
| 2026-02-26 | Press release | NioCorp Launches Construction of Elk Creek Critical Minerals Project Mine Portal |
| 2026-02-25 | Press release | NioCorp Announces Closing of $100.0 Million Public Offering of Common Shares |
| 2026-02-25 | Press release | NioCorp Announces Closing of $100.0 Million Public Offering of Common Shares |
| 2026-02-25 | Proxy | Definitive proxy statement |
| 2026-02-25 | 8-K | Form 8-K, Item 1.01 |
| 2026-02-24 | Press release | NioCorp Announces Pricing of $100.0 Million Public Offering of Common Shares |
| 2026-02-24 | Press release | NioCorp Announces Pricing of $100.0 Million Public Offering of Common Shares |
| 2026-02-06 | 10-Q | Form 10-Q for the quarter ended Dec 31 |
| 2026-02-04 | Press release | NioCorp Applauds White House and EXIM For Bold “Project Vault” Initiative |
| 2026-02-04 | Press release | NioCorp Applauds White House and EXIM For Bold “Project Vault” Initiative |
| 2026-01-20 | 8-K | Form 8-K, Item 8.01 |
| 2026-01-14 | Press release | NioCorp Issues 2025 Year in Review Report |
| 2026-01-14 | Press release | NioCorp Issues 2025 Year in Review Report |
| 2026-01-12 | Press release | NioCorp Reports Final Assay Results From the Department of War-Funded Elk Creek Drilling Campaign |
| 2026-01-12 | Press release | NioCorp Provides Preliminary Unaudited Financial Results for the Three- and Six-Month Periods Ended December 31, 2025 |
| 2026-01-12 | Press release | NioCorp Reports Final Assay Results From the Department of War-Funded Elk Creek Drilling Campaign |