---
schema_version: "secwatch.filing_event.v1"
accession: "0001539497-25-000227"
form_type: "8-K"
ticker: "NB"
cik: "0001512228"
company_name: "NIOCORP DEVELOPMENTS LTD"
filed_at: "2025-01-31T23:59:59+00:00"
generated_at: "2026-05-27T04:39:56.672336+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# NioCorp closes $5M underwritten offering of common shares and warrants

## Summary
- Offering of 2,577,320 units at $1.94 each, each unit comprising one common share, one Series A warrant (exercise $1.98), and one-half Series B warrant (exercise $2.05).
- Gross proceeds ~$5.0 million; net proceeds ~$4.28 million after underwriting discount and expenses.
- Net proceeds to repay portion of unsecured notes from April 2024 and fund working capital for Elk Creek critical minerals project.
- Maxim Group LLC acted as sole book-running manager; 60-day lock-up for company and executives on share sales.
- Offering closed on January 31, 2025; Series A warrants expire August 2027, Series B warrants expire January 2029.

## SEC filing metadata
- accession: 0001539497-25-000227
- form_type: 8-K
- ticker: NB
- cik: 0001512228
- company_name: NIOCORP DEVELOPMENTS LTD
- filed_at: 2025-01-31T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 1.01, 7.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1512228/000153949725000227/0001539497-25-000227-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1512228/000153949725000227/n2574_x246-8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001539497-25-000227
- JSON: https://secwatch.observer/filing/0001539497-25-000227.json
- Plain text: https://secwatch.observer/filing/0001539497-25-000227.txt

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