---
schema_version: "secwatch.filing_event.v1"
accession: "0001539497-25-001476"
form_type: "8-K"
ticker: "NB"
cik: "0001512228"
company_name: "NIOCORP DEVELOPMENTS LTD"
filed_at: "2025-05-21T23:59:59+00:00"
generated_at: "2026-05-20T22:27:14.730678+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.1
calibrated_materiality_score: 0.1
confidence: "low"
source: SEC EDGAR
---

# NioCorp posts updated investor presentation; no specific updates in exhibit

## Summary
- NioCorp posted an updated investor presentation on its website on May 21, 2025.
- The attached Exhibit 99.1 contains only disclaimers and forward-looking statements, not the actual presentation content.
- No specific financial results, project milestones, or financing updates were disclosed in the filed exhibit.
- Investors should refer to the company's website for the full presentation details.

## SEC filing metadata
- accession: 0001539497-25-001476
- form_type: 8-K
- ticker: NB
- cik: 0001512228
- company_name: NIOCORP DEVELOPMENTS LTD
- filed_at: 2025-05-21T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.1
- calibrated_materiality_score: 0.1
- confidence: low
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1512228/000153949725001476/0001539497-25-001476-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1512228/000153949725001476/n2574_x262-8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001539497-25-001476
- JSON: https://secwatch.observer/filing/0001539497-25-001476.json
- Plain text: https://secwatch.observer/filing/0001539497-25-001476.txt

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