Mark A. Smith - 01 Mar 2022 Form 4 Insider Report for NIOCORP DEVELOPMENTS LTD (NB)

Role: President & CEO, Director
Signature: /s/ Mark A. Smith
Issuer symbol: NB
Transactions as of: 01 Mar 2022
Net transactions value: -$11.69
Form type: 4
Filing time: 03 Mar 2022, 15:01:21 UTC
Previous filing: 17 Dec 2021
Next filing: 29 Nov 2022
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	NB	Common Shares	Options Exercise	$389,025	+650,000	+3.4%	$0.5985	20,002,564	01 Mar 2022	Direct	F1
transaction	NB	Common Shares	Tax liability	$389,037	-437,169	-2.2%	$0.8899	19,565,395	01 Mar 2022	Direct	F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	NB	Employee Stock Option (right to buy)	Options Exercise	$0	-650,000	-100%	$0.000000^*	0	01 Mar 2022	Common Shares	650,000	$0.5985	Direct	F1, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Option exercise price reflected was converted from Canadian exercise price of C$0.76 using an exchange rate of C$1.2698 = US$1.00 as reported by the Bank of Canada on February 28, 2022.
F2	Sale price of common shares withheld in satisfaction of option exercise price is based on the closing price of the common shares on the Toronto Stock Exchange on February 28, 2022 of C$1.13, which was converted using an exchange rate of C$1.2698 = US$1.00 as reported by the Bank of Canada on February 28, 2022.
F3	The option, representing a right to purchase a total of 650,000 Common Shares, became exercisable in installments as follows: 50% on September 2, 2017; 25% March 6, 2018; and the remaining balance on September 2, 2018.