[Form 4] NioCorp Developments Ltd. Insider Trading Activity

Rhea-AI Filing Summary

NioCorp Developments Ltd. director Oliver Peter Robert reported acquiring 60,000 common shares via stock options exercisable at $4.35 per share. The transaction date is 08/18/2025 and the Form 4 was signed 08/20/2025. The filing shows this was an acquisition through a Director Stock Option (right to buy) with 60,000 underlying common shares and a $0 reported cash price for the shares following exercise. The option grant vests 34% on the grant date with the balance vesting in equal annual installments through 08/18/2027. The filing indicates direct ownership following the transaction and was submitted by an attorney-in-fact on behalf of the reporting person.

Positive

• Director acquired 60,000 shares through exercise of options, increasing insider alignment with shareholders
• Vesting schedule (34% immediate, remainder through 08/18/2027) ties future value to continued service

Negative

• None.

Insights

Securities Analyst

TL;DR: Director exercised stock options to acquire 60,000 shares at $4.35, with staged vesting to align incentives.

The filing documents a standard insider option exercise by a director rather than an open-market purchase or sale. Acquiring 60,000 shares via a Director Stock Option at a $4.35 exercise price increases the director's direct stake and aligns management incentives with shareholders. The vesting schedule—34% immediately and remainder vesting annually through 2027—ties future value realization to continued service. This disclosure is routine and informative for monitoring insider alignment but does not on its own indicate a material change to company fundamentals.

Corporate Governance Expert

TL;DR: Exercise and vesting terms are typical for director compensation and show continued alignment with shareholder interests.

The Form 4 shows a director-level equity grant being exercised with an initial partial vesting and subsequent annual vesting until 08/18/2027. Such schedules are commonly used to retain executives and directors. The direct ownership post-exercise is clearly reported, and the use of an attorney-in-fact to file is procedural. From a governance perspective, the filing is a transparent disclosure of insider activity and consistent with standard compensation practices.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Oliver Peter Robert

(Last) (First) (Middle)

C/O NIOCORP DEVELOPMENTS LTD.

7000 S YOSEMITE STREET SUITE 115

(Street)

CENTENNIAL CO 80112

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
NIOCORP DEVELOPMENTS LTD [ NB ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
08/18/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Director Stock Option (Right to Buy)	$4.35	08/18/2025		A		60,000		(1)	08/19/2030	Common Shares	60,000	$0	60,000	D

Explanation of Responses:

1. 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.

	/s/ Neal S. Shah, as attorney-in-fact	08/20/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did NioCorp (NB) director Oliver Peter Robert report on Form 4?

He reported acquiring 60,000 common shares via a Director Stock Option exercise at an exercise price of $4.35 per share on 08/18/2025.

How much of the option grant vested immediately for Oliver Peter Robert?

34% of the options vested on the grant date; the remainder vests in equal annual installments through 08/18/2027.

What is the ownership form reported after the transaction?

The filing reports direct ownership of the 60,000 common shares following the reported transaction.

When was the Form 4 signed and filed?

The signature block shows the filing was executed by an attorney-in-fact and dated 08/20/2025.

Does the Form 4 show cash proceeds or price paid for the exercised shares?

The report lists the option exercise price as $4.35 and shows $0 under the reported cash amount following the transaction in the table, consistent with an exercise disclosure format.