{"schema_version":"secwatch.filing_event.v1","accession":"0001539497-25-003036","form_type":"8-K","ticker":"NB","cik":"0001512228","company_name":"NIOCORP DEVELOPMENTS LTD","filed_at":"2025-11-21T23:59:59+00:00","discovered_at":"2026-05-14T18:02:39.594944+00:00","generated_at":"2026-05-16T17:37:04.295308+00:00","sec_items":["1.01","3.03","7.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"NioCorp adopts six-month shareholder rights plan with 20% trigger","bullets":["Rights plan effective Nov 21, 2025, expires May 21, 2026.","Trigger: any person acquiring 20%+ of outstanding common shares without complying with permitted bid provisions.","Permitted bid must be to all shareholders, open 105 days, require >50% independent shareholder tender.","Upon Flip-in Event, holders (other than Acquiring Person) can buy additional shares at 50% discount.","Plan not adopted in response to any specific takeover bid; company unaware of any pending bids."],"urls":{"canonical":"https://secwatch.observer/filing/0001539497-25-003036","json":"https://secwatch.observer/filing/0001539497-25-003036.json","markdown":"https://secwatch.observer/filing/0001539497-25-003036.md","text":"https://secwatch.observer/filing/0001539497-25-003036.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1512228/000153949725003036/0001539497-25-003036-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1512228/000153949725003036/n2574_x299-8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T17:37:04.295308+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}