---
schema_version: "secwatch.filing_event.v1"
accession: "0001539497-25-002527"
form_type: "8-K"
ticker: "NB"
cik: "0001512228"
company_name: "NIOCORP DEVELOPMENTS LTD"
filed_at: "2025-09-29T23:59:59+00:00"
generated_at: "2026-05-17T05:23:59.630910+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# NioCorp closes $60M public offering of common shares and pre-funded warrants

## Summary
- Gross proceeds ~$60M from 9.76M shares/pre-funded warrants at $6.15/share; net ~$55.3M.
- Pre-funded warrants exercisable at $0.0001, no expiration, with 4.99% ownership cap.
- Net proceeds to fund working capital and advance the Elk Creek Project construction.
- Maxim Group LLC acted as sole placement agent; insiders subject to 30-day lock-up.
- Company restricted from issuing equity-like securities for 60 days post-closing.

## SEC filing metadata
- accession: 0001539497-25-002527
- form_type: 8-K
- ticker: NB
- cik: 0001512228
- company_name: NIOCORP DEVELOPMENTS LTD
- filed_at: 2025-09-29T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 1.01, 7.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1512228/000153949725002527/0001539497-25-002527-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1512228/000153949725002527/n2574_x289-8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001539497-25-002527
- JSON: https://secwatch.observer/filing/0001539497-25-002527.json
- Plain text: https://secwatch.observer/filing/0001539497-25-002527.txt

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