---
schema_version: "secwatch.filing_event.v1"
accession: "0001539497-23-000997"
form_type: "8-K"
ticker: "NB"
cik: "0001512228"
company_name: "NIOCORP DEVELOPMENTS LTD"
filed_at: "2023-05-24T23:59:59+00:00"
generated_at: "2026-06-14T15:55:58.973860+00:00"
event_type: "regulatory"
sentiment: "negative"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# NioCorp receives Nasdaq delisting notice for late Q3 FY2023 10-Q filing

## Summary
- Received Nasdaq notification on May 24, 2023 for failure to timely file Form 10-Q for quarter ended March 31, 2023 under Rule 5250(c)(1).
- No immediate effect on listing or trading; company has 60 days to submit compliance plan.
- Filing delay due to complexities in integrating GX Acquisition Corp. II and accounting for business combination.
- Also expects management cease trade order in Canada restricting insider trading until Canadian filings are made.
- Company expects to regain compliance within the 60-day period.

## SEC filing metadata
- accession: 0001539497-23-000997
- form_type: 8-K
- ticker: NB
- cik: 0001512228
- company_name: NIOCORP DEVELOPMENTS LTD
- filed_at: 2023-05-24T23:59:59+00:00
- event_type: regulatory
- sentiment: negative
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 3.01, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1512228/000153949723000997/0001539497-23-000997-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1512228/000153949723000997/n2574_x141-8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001539497-23-000997
- JSON: https://secwatch.observer/filing/0001539497-23-000997.json
- Plain text: https://secwatch.observer/filing/0001539497-23-000997.txt

## Key facts
- Listing & Compliance Notices
  NIOCORP DEVELOPMENTS LTD received a nasdaq deficiency notice notice regarding late filing (rules 5250(c)(1)).
  - Exchange: nasdaq
  - Notice: deficiency notice
  - Deficiency: late filing
  - Rules: 5250(c)(1)
  source text: May 24, 2023, NioCorp Developments Ltd. (“NioCorp” or the “Company”) received a letter from the Listing Qualifications Department of The Nasdaq Stock Market LLC (“Nasdaq”) indicating that, because the Company has not filed its Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2023 (the “Form 10-Q”) within the prescribed time period, the Company is not in compliance with the timely filing requirement for continued listing under Nasdaq Listing Rule 5250(c)(1). The Nasdaq notification letter has no immediate effect on the listing or trading of the Company’s common shares on N
  evidence_url: https://www.sec.gov/Archives/edgar/data/1512228/000153949723000997/0001539497-23-000997-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.