NB insider transaction filings

NIOCORP DEVELOPMENTS LTD — 45 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2026-07-08. Screen NB transaction legs live →

Insider transaction summary — last 90 days

2026-06-24 to 2026-09-22, from the filings listed below: 4 Form 4 filings. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.

By insider — same window

Open-market purchase/sale legs on non-derivative securities, grouped by the filing's reporting owner(s); joint filings appear once. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.

InsiderFilingsPurchases (P)Sales (S)Other legs
Cleave Ernest M. — Senior VP Business Development11
Honan Scott — Chief Operating Officer11
Shah Neal S. — Chief Financial Officer11
Smith Mark A. — President & CEO, Director11

Recent Form 4 filings — NIOCORP DEVELOPMENTS LTD

FiledFormInsiderReported transactionsSource
2026-07-084Honan Scott — Chief Operating OfficerGrant/award (A): 162,866 (derivative) @ $0EDGAR
2026-07-084Cleave Ernest M. — Senior VP Business DevelopmentGrant/award (A): 97,720 (derivative) @ $0EDGAR
2026-07-084Shah Neal S. — Chief Financial OfficerGrant/award (A): 114,007 (derivative) @ $0EDGAR
2026-07-084Smith Mark A. — President & CEO, DirectorGrant/award (A): 293,160 (derivative) @ $0EDGAR
2025-12-154Shah Neal S. — Chief Financial OfficerOption exercise/expiry (X): 9,361 @ $3.54 · Option exercise/expiry (X): 9,361 (derivative) @ $0EDGAR
2025-12-154Smith Mark A. — President & CEO, DirectorOption exercise/expiry (X): 46,801 @ $3.54 · Option exercise/expiry (X): 46,801 (derivative) @ $0EDGAR
2025-12-154Kehler Dean C — DirectorOption exercise/expiry (X): 78,003 @ $3.54 · Option exercise/expiry (X): 78,003 (derivative) @ $0EDGAR
2025-09-054Cleave Ernest M. — Senior VP Business DevelopmentGrant/award (A): 100,000 (derivative) @ $0EDGAR
2025-09-024Fulton Anthony W — DirectorGrant/award (A): 50,000 (derivative) @ $0EDGAR
2025-08-204Sims James T. — Chief Communications OfficerGrant/award (A): 250,000 (derivative) @ $0EDGAR
2025-08-204Shah Neal S. — Chief Financial OfficerGrant/award (A): 250,000 (derivative) @ $0EDGAR
2025-08-204Oliver Peter Robert — DirectorGrant/award (A): 60,000 (derivative) @ $0EDGAR
2025-08-204Honan Scott — Chief Operating OfficerGrant/award (A): 250,000 (derivative) @ $0EDGAR
2025-08-204Guerrero-Mahon Nilsa — DirectorGrant/award (A): 55,000 (derivative) @ $0EDGAR
2025-08-204Maselli Michael G. — DirectorGrant/award (A): 50,000 (derivative) @ $0EDGAR
2025-08-204Smith Mark A. — President & CEO, DirectorGrant/award (A): 375,000 (derivative) @ $0EDGAR
2025-08-204BELING DAVID COATES — DirectorGrant/award (A): 50,000 (derivative) @ $0EDGAR
2025-08-204Kehler Dean C — DirectorGrant/award (A): 50,000 (derivative) @ $0EDGAR
2024-12-234Honan Scott — Chief Operating OfficerGrant/award (A): 100,000 (derivative) @ $0EDGAR
2024-12-234Guerrero-Mahon Nilsa — DirectorGrant/award (A): 75,000 (derivative) @ $0EDGAR
2024-12-234Maselli Michael G. — DirectorGrant/award (A): 50,000 (derivative) @ $0EDGAR
2024-12-234Oliver Peter Robert — DirectorGrant/award (A): 50,000 (derivative) @ $0EDGAR
2024-12-234Shah Neal S. — Chief Financial OfficerGrant/award (A): 100,000 (derivative) @ $0EDGAR
2024-12-234Sims James T. — Chief Communications OfficerGrant/award (A): 100,000 (derivative) @ $0EDGAR
2024-12-234Maselli Michael G. — DirectorOther (J): 323,085 · Other (J): 323,085 (derivative)EDGAR
2024-12-234Smith Mark A. — President & CEO, DirectorGrant/award (A): 150,000 (derivative) @ $0EDGAR
2024-12-234BELING DAVID COATES — DirectorGrant/award (A): 50,000 (derivative) @ $0EDGAR
2024-12-234Morris Michael James — DirectorGrant/award (A): 75,000 (derivative) @ $0EDGAR
2024-12-234Kehler Dean C — DirectorGrant/award (A): 50,000 (derivative) @ $0EDGAR
2024-11-134Smith Mark A. — President & CEO, DirectorPurchase (P): 183,422 · Purchase (P): 183,422 (derivative) · Purchase (P): 91,711 (derivative)EDGAR
2024-11-134Kehler Dean C — DirectorPurchase (P): 56,577 · Purchase (P): 56,577 (derivative) · Purchase (P): 28,288 (derivative)EDGAR
2024-02-204/AMaselli Michael G. — DirectorGrant/award (A): 50,000 (derivative) @ $0EDGAR
2024-02-164Maselli Michael G. — DirectorGrant/award (A): 50,000 (derivative) @ $0EDGAR
2024-02-154Sims James T. — Chief Communications OfficerGrant/award (A): 250,000 (derivative) @ $0EDGAR
2024-02-154Shah Neal S. — Chief Financial OfficerGrant/award (A): 250,000 (derivative) @ $0EDGAR
2024-02-154Oliver Peter Robert — DirectorGrant/award (A): 50,000 (derivative) @ $0EDGAR
2024-02-154Honan Scott — Chief Operating OfficerGrant/award (A): 250,000 (derivative) @ $0EDGAR
2024-02-154Guerrero-Mahon Nilsa — DirectorGrant/award (A): 75,000 (derivative) @ $0EDGAR
2024-02-154Smith Mark A. — President & CEO, DirectorGrant/award (A): 375,000 (derivative) @ $0EDGAR
2024-02-154BELING DAVID COATES — DirectorGrant/award (A): 50,000 (derivative) @ $0EDGAR
2024-02-154Morris Michael James — DirectorGrant/award (A): 75,000 (derivative) @ $0EDGAR
2024-02-154Kehler Dean C — DirectorGrant/award (A): 50,000 (derivative) @ $0EDGAR
2023-12-224Shah Neal S. — Chief Financial OfficerPurchase (P): 9,360 · Purchase (P): 9,360 (derivative)EDGAR
2023-12-224Smith Mark A. — President & CEOPurchase (P): 46,801 · Purchase (P): 46,801 (derivative)EDGAR
2023-12-224Kehler Dean C — DirectorPurchase (P): 78,003 · Purchase (P): 78,003 (derivative)EDGAR

Recent 8-K events — NIOCORP DEVELOPMENTS LTD

FiledFormItems reportedSource
2026-07-088-K5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain OfficersEDGAR
2026-04-068-K1.01 — Entry into a Material Definitive Agreement
3.03 — Material Modification to Rights of Security Holders
5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers
5.07 — Submission of Matters to a Vote of Security Holders
9.01 — Financial Statements and Exhibits
EDGAR
2026-02-258-K1.01 — Entry into a Material Definitive Agreement
7.01 — Regulation FD Disclosure
8.01 — Other Events
9.01 — Financial Statements and Exhibits
EDGAR
2026-01-208-K8.01 — Other Events
9.01 — Financial Statements and Exhibits
EDGAR
2026-01-128-K2.02 — Results of Operations and Financial Condition
7.01 — Regulation FD Disclosure
9.01 — Financial Statements and Exhibits
EDGAR
2025-12-048-K1.01 — Entry into a Material Definitive Agreement
2.01 — Completion of Acquisition or Disposition of Assets
7.01 — Regulation FD Disclosure
9.01 — Financial Statements and Exhibits
EDGAR
2025-11-218-K1.01 — Entry into a Material Definitive Agreement
3.03 — Material Modification to Rights of Security Holders
7.01 — Regulation FD Disclosure
9.01 — Financial Statements and Exhibits
EDGAR
2025-10-158-K1.01 — Entry into a Material Definitive Agreement
8.01 — Other Events
9.01 — Financial Statements and Exhibits
EDGAR
2025-10-148-K2.02 — Results of Operations and Financial Condition
7.01 — Regulation FD Disclosure
9.01 — Financial Statements and Exhibits
EDGAR
2025-10-068-K2.01 — Completion of Acquisition or Disposition of Assets
9.01 — Financial Statements and Exhibits
EDGAR
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