NIOCORP DEVELOPMENTS LTD (NB) Insider Trading & SEC Filings

Updated Jul 16, 2026 · Last SEC filing 2026-07-08

NIOCORP DEVELOPMENTS LTD (NB) has filed 5 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-08. 1 Form 8-K material event filings were reported by NB in the last 90 days. InsiderAlpha tracks every NB SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.

About NIOCORP DEVELOPMENTS LTD (NB)

SEC CIK	0001512228

90-Day SEC Filing Activity

Form 4 filings (90d)	5
Form 8-K filings (90d)	1
Latest Form 4 filing	2026-07-08

Recent NB Insider Transactions (Form 4)

Date	Insider	Role	Transaction	Shares	Price	Value	Filing
2024-12-20	Maselli Michael G.	Director	J — Other acquisition / disposition	323.1K	—	—	SEC
2024-11-13	Smith Mark A.	President & CEO	P — Open-market purchase	183.4K	—	—	SEC
2024-11-13	Kehler Dean C	Director	P — Open-market purchase	56.6K	—	—	SEC

All transactions sourced from SEC EDGAR Form 4 filings for NIOCORP DEVELOPMENTS LTD (NB). Updated in real time as new filings are submitted to the SEC.

Most-Active NB Insiders — Last 90 Days

Insider	Form 4 filings	Total transaction value
Smith Mark A.	1	—
Honan Scott	1	—
Shah Neal S.	1	—
Sims James T.	1	—
Cleave Ernest M.	1	—

Recent NB Form 8-K Material Events

2026-07-08 — Item 5.02 [SEC]
2026-04-06 — Item 1.01, 3.03, 5.02, 5.07, 9.01 · Other · neutral [SEC]
NioCorp Developments Ltd. entered into an Amended and Restated Shareholder Rights Plan Agreement on April 6, 2026, following shareholder approval at the Annual Meeting. The amended plan extends and modifies the company's poison pill defense mechanism, which was originally set to
2026-02-25 — Item 1.01, 7.01, 8.01, 9.01 · Financing · mixed [SEC]
NioCorp Developments Ltd. completed a public equity offering on February 25, 2026, issuing 17.4 million common shares at $5.00/share and 2.6 million pre-funded warrants at $4.9999/warrant, raising approximately $87 million in gross proceeds. For a development-stage mining company

Recent Insider Filings

2026-07-08 — Smith Mark A. (President & CEO)
2026-07-08 — Sims James T. (Chief Communications Officer)
2026-07-08 — Honan Scott (Chief Operating Officer)
2026-07-08 — Cleave Ernest M. (Senior VP Business Development)
2026-07-08 — Shah Neal S. (Chief Financial Officer)

Form 4 Transaction Code Reference

SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in NB insider filings:

P	Open-market purchase by the insider
S	Open-market sale by the insider
A	Grant, award, or other acquisition from the issuer
M	Exercise or conversion of derivative security (e.g. options)
F	Payment of exercise price or tax liability via share withholding
G	Bona-fide gift of securities
D	Disposition to the issuer (e.g. share buyback participation)
J	Other acquisition or disposition
X	Exercise of in-the-money or at-the-money derivative security
C	Conversion of derivative security
V	Transaction voluntarily reported earlier than required

NB Insider Trading — FAQ

What is the latest insider trade for NB?: NIOCORP DEVELOPMENTS LTD (NB) had 5 insider filings in the last 90 days, with the most recent on 2026-07-08. InsiderAlpha tracks every Form 4, 10-K, 10-Q, and 8-K filing in real time.
How many insiders are buying NB stock?: 0 insider purchases of NB were filed in the last 90 days.
How many insiders are selling NB stock?: 0 insider sales of NB were filed in the last 90 days.
Where can I see NB SEC filings (Form 4, 10-K, 10-Q, 8-K)?: InsiderAlpha aggregates every NB SEC filing — Form 4 insider transactions, 10-K and 10-Q quarterly reports, and 8-K material event disclosures — in one timeline.

Learn More

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