---
schema_version: "secwatch.filing_event.v1"
accession: "0001539497-25-001179"
form_type: "8-K"
ticker: "NB"
cik: "0001512228"
company_name: "NIOCORP DEVELOPMENTS LTD"
filed_at: "2025-04-21T23:59:59+00:00"
generated_at: "2026-05-23T10:08:39.504839+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# NioCorp closes public offering of common shares and warrants for $20.8M gross

## Summary
- Sold 7,692,308 common shares at $2.60 per share plus 323,504 over-allotment shares.
- Total gross proceeds $20.8 million; net proceeds estimated at $18.9 million after discounts and expenses.
- Maxim Group LLC acted as sole book-running manager; offering closed April 21, 2025.
- Proceeds expected to fund development of the Elk Creek niobium, scandium, and titanium project.

## SEC filing metadata
- accession: 0001539497-25-001179
- form_type: 8-K
- ticker: NB
- cik: 0001512228
- company_name: NIOCORP DEVELOPMENTS LTD
- filed_at: 2025-04-21T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 7.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1512228/000153949725001179/0001539497-25-001179-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1512228/000153949725001179/n2574_x260-8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001539497-25-001179
- JSON: https://secwatch.observer/filing/0001539497-25-001179.json
- Plain text: https://secwatch.observer/filing/0001539497-25-001179.txt

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