Michael G. Maselli - 18 Aug 2025 Form 4 Insider Report for NIOCORP DEVELOPMENTS LTD (NB)

Role
Director
Signature
/s/ Neal S. Shah, as attorney-in-fact
Issuer symbol
NB
Transactions as of
18 Aug 2025
Net transactions value
$0
Form type
4
Filing time
20 Aug 2025, 16:42:26 UTC
Previous filing
23 Dec 2024
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Maselli Michael G. Director C/O NIOCORP DEVELOPMENTS LTD., 7000 YOSEMITE STREETE, SUITE 115, CENTENNIAL /s/ Neal S. Shah, as attorney-in-fact 20 Aug 2025 0001614590

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 Director Stock Option (Right to Buy) Award $0 +50,000 $0.000000 50,000 18 Aug 2025 Common Shares 50,000 $4.35 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 34% of the options vested on the grant date and the remainder will vest in equal installments on each anniversary of the grant date until August 18, 2027.

Remarks:

Exhibit 24.1 - Power of Attorney