Welcome to our dedicated page for Niocorp Developm SEC filings (Ticker: NB), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
NioCorp Developments Ltd. filings document the governance, capital structure, and financing disclosures of a British Columbia critical-minerals developer focused on the Elk Creek project. Recent 8-K reports cover material definitive agreements, registered offerings of common shares and pre-funded warrants, standby equity purchase agreement exhibits, preliminary financial results, and Regulation FD updates.
Proxy and rights-plan filings describe annual shareholder voting matters, board governance, security-holder rights, and common share purchase rights. The company’s Nasdaq-listed securities disclosures also identify common shares and warrants that are exercisable for common shares.
David Coates Beling, a director of NioCorp Developments Ltd. (NB), was granted a stock option to buy 50,000 common shares with a $4.35 exercise price. The option becomes exercisable beginning 08/19/2025 and expires 08/19/2030, and is held directly by the reporting person. Thirty-four percent of the options vested on the grant date, with the remainder vesting in equal annual installments until August 18, 2027. The grant therefore provides immediate partial ownership potential and staged future alignment with the company through a five-year exercise window.
Mark A. Smith, President & CEO and a Director of NioCorp Developments Ltd. (NB), acquired 375,000 employee stock options on 08/18/2025. The options have an exercise price of $4.35 and 34% vested on the grant date; the remainder vests in equal installments each anniversary through 08/18/2027. The options are exercisable beginning 08/19/2025 and expire 08/19/2030. After the transaction, Mr. Smith beneficially owns 375,000 options reported as direct ownership.
Insider option grant reported for NioCorp Developments Ltd. (NB). Director Michael G. Maselli was granted a non-qualified stock option to purchase 50,000 common shares at an exercise price of $4.35 with an exercise/expiration schedule through August 19, 2030. The filing states 34% of the options vested on the grant date and the remainder vests in equal annual installments until August 18, 2027. The transaction date is 08/18/2025 and the Form 4 was signed by an attorney-in-fact on 08/20/2025. The options are held directly by the reporting person and no cash proceeds were reported for underlying shares at the time of the filing.
NioCorp Developments Ltd. reported that its Board of Directors appointed Tony Fulton to fill an existing vacancy on the board effective August 9, 2025. He will serve an initial term that runs until the company’s 2025 Annual General Meeting of Shareholders, at which point shareholders would typically vote on board membership.
Fulton will also serve on the Board’s Nominating and Corporate Governance Committee and its Audit Committee, giving him roles in overseeing director nominations, governance practices, and financial reporting oversight. As a non-employee director, he will receive compensation on the same basis as the company’s other non-employee directors, consistent with the pay program described in NioCorp’s definitive proxy statement filed on February 3, 2025.
On 4 Aug 2025, NioCorp Developments Ltd. (Nasdaq: NB) filed an 8-K reporting that its 92%-owned subsidiary, Elk Creek Resources Corp. (ECRC), executed a Project Sub-Agreement with Advanced Technology International on behalf of the U.S. Department of Defense (DoD). The Sub-Agreement incorporates a 23 Jul 2025 Base Agreement and supports ongoing work at the Elk Creek Critical Minerals Project in Nebraska.
The DoD will reimburse ECRC for up to ≈US$10 million of eligible costs, payable after specific milestones are reached:
- completion of new drilling operations
- completion of engineering studies for scandium metal, scandium master-alloy and aluminum-scandium master-alloy
- delivery of an updated feasibility study
No equity issuance, debt financing, or earnings data accompanies this filing; the disclosure is limited to Item 1.01 (Material Definitive Agreement).
On 1 Aug 2025, NioCorp Developments Ltd. (ticker NB) filed an 8-K announcing that its wholly owned subsidiary, Elk Creek Resources Corp. (ECRC), closed on the purchase of three land parcels in Johnson County, Nebraska under option agreements signed in 2009 and 2014 with Roger and Nancy Woltemath. The acquisition delivers surface rights to the Woltemath80S parcel and both surface and mineral rights to approximately 1.66 acres of the Woltemath002 parcel.
The aggregate purchase price was about US$2.7 million. At closing the company reduced cash (current assets) by the same amount and capitalized the cost as “land” within non-current assets, producing a neutral impact on total assets. No additional financial metrics, debt financing, or forward-looking statements were disclosed.
The filing reports no other material events or changes to previously reported guidance.
On 1 Aug 2025, NioCorp Developments Ltd. (ticker NB) filed an 8-K announcing that its wholly owned subsidiary, Elk Creek Resources Corp. (ECRC), closed on the purchase of three land parcels in Johnson County, Nebraska under option agreements signed in 2009 and 2014 with Roger and Nancy Woltemath. The acquisition delivers surface rights to the Woltemath80S parcel and both surface and mineral rights to approximately 1.66 acres of the Woltemath002 parcel.
The aggregate purchase price was about US$2.7 million. At closing the company reduced cash (current assets) by the same amount and capitalized the cost as “land” within non-current assets, producing a neutral impact on total assets. No additional financial metrics, debt financing, or forward-looking statements were disclosed.
The filing reports no other material events or changes to previously reported guidance.
Citadel entities and founder Kenneth Griffin have crossed the 5 % ownership threshold in NioCorp Developments Ltd. (NB) and therefore filed this Schedule 13G.
The filing discloses aggregated beneficial ownership of 3,903,395 common shares, equal to ≈5.4 % of the 72.65 million shares outstanding as cited in NioCorp’s 18 Jul 2025 prospectus. Within this total, Citadel Advisors LLC, Citadel Advisors Holdings LP and Citadel GP LLC jointly report 3,772,972 shares (5.2 %), while Citadel Securities controls 130,423 shares (0.2 %). All voting and dispositive powers are shared; no party reports sole power.
The position is reported under Rule 13d-1(b), signalling a passive investment. Certification language states the shares were “not acquired … to change or influence control.” The stake includes 69 shares issuable upon warrant conversion.
This is Citadel’s first publicly reported ownership above the 5 % threshold in NB, potentially indicating incremental institutional interest, but the filing provides no operational or financial commentary.