Niocorp grants 97,720 stock options to executive

NIOCORP DEVELOPMENTS LTD reported that Chief Communications Officer James T. Sims received a grant of employee stock options covering 97,720 common shares.

Rhea-AI Filing Summary

NIOCORP DEVELOPMENTS LTD reported that Chief Communications Officer James T. Sims received a grant of employee stock options covering 97,720 common shares. The options have an exercise price of $4.74 per share and expire on July 6, 2031. According to the vesting terms, 34% of the options vested on the grant date, 33% will vest on the first anniversary of the grant date, and the remaining balance will vest on the second anniversary on July 6, 2028. This is a compensation-related award rather than an open-market purchase or sale.

Insider Trade Summary

Grant/Award: 97,720 shares

Grant/Award 1 txn

Insider Sims James T.

Role Chief Communications Officer

Type	Security	Shares	Price	Value
Grant/Award	Employee Stock Option (Right to Buy)	97,720	$0.00	$0.00

Holdings After Transaction: Employee Stock Option (Right to Buy) — 97,720 contracts (Direct)

Footnotes (1)

1. F1. 34% of the options vested on the grant date, 33% of the options will vest on the first anniversary of the grant date, and the remaining balance will vest on the second anniversary of the grant date (July 6, 2028).

Key Figures

Options granted: 97,720 options Exercise price: $4.74 per share Options after transaction: 97,720 options +4 more

7 metrics

Options granted 97,720 options Employee stock option grant to Chief Communications Officer

Exercise price $4.74 per share Exercise price for granted employee stock options

Options after transaction 97,720 options Total options held by Sims following the grant

Initial vesting portion 34% of options Vested on the grant date

Second vesting portion 33% of options Vest on first anniversary of grant date

Final vesting date July 6, 2028 Remaining balance of options vests

Option expiration July 6, 2031 Expiration date of the employee stock options

Key Terms

Employee Stock Option (Right to Buy), grant date, vested, expiration date, +1 more

5 terms

Employee Stock Option (Right to Buy) financial

"security_title: Employee Stock Option (Right to Buy)"

grant date financial

"34% of the options vested on the grant date, 33% of the options"

The grant date is the day a company formally gives an employee or contractor the right to receive stock-based compensation, such as stock options or restricted shares. It matters to investors because it fixes key terms—like the price, the start of the ownership clock, and when the award will affect the company’s financial statements and share count—so it can influence dilution, reported expenses, and potential future selling pressure.

vested financial

"34% of the options vested on the grant date, 33% of the options will vest"

expiration date financial

"expiration_date: 2031-07-06T00:00:00.000Z"

The expiration date is the deadline after which a financial contract, such as an option or a futures agreement, is no longer valid or can be exercised. It matters to investors because it determines the timeframe during which they can take action or benefit from the contract, similar to how a coupon or a food item has a limited period of usefulness. Once the expiration date passes, the contract loses its value or ability to be used.

underlying security financial

"underlying_security_title: Common Shares"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did NIOCORP (NB) report for James T. Sims?

NIOCORP reported that Chief Communications Officer James T. Sims received 97,720 employee stock options. These options give him the right to buy common shares at a fixed exercise price as part of his compensation package.

What is the exercise price of the new NIOCORP (NB) stock options?

The granted employee stock options have an exercise price of $4.74 per share. This price is the cost at which James T. Sims can purchase NIOCORP common shares if he exercises the options in the future.

How many NIOCORP (NB) options does James T. Sims hold after this grant?

After the reported grant, James T. Sims holds 97,720 employee stock options directly. Each option is linked to one NIOCORP common share, giving him potential future equity exposure if exercised.

What is the vesting schedule for the NIOCORP (NB) options granted to Sims?

The vesting schedule is staged: 34% of the options vested on the grant date, 33% will vest one year after the grant, and the remaining balance vests on July 6, 2028, encouraging longer-term service.

When do the newly granted NIOCORP (NB) stock options expire?

The employee stock options granted to James T. Sims expire on July 6, 2031. After this expiration date, any unexercised options will lapse and can no longer be used to purchase NIOCORP common shares.

Are the NIOCORP (NB) option grants an open-market buy or sell transaction?

No, this filing shows a grant of employee stock options as compensation, coded as an acquisition (A). It is not an open-market purchase or sale of existing NIOCORP common shares by James T. Sims.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 07/08/2026 - 04:02 PM Learn about SEC filing dates

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
Estimated average burden
hours per response:			0.5

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^*

Sims James T.

(Last) (First) (Middle)

C/O NIOCORP DEVELOPMENTS LTD.

7000 YOSEMITE STREET, SUITE 115

(Street)

CENTENNIAL COLORADO 80112

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/06/2026

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

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

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

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
Employee Stock Option (Right to Buy)	$4.74	07/06/2026		A		97,720		(1)	07/06/2031	Common Shares	97,720	$0	97,720	D

Explanation of Responses:

1. 34% of the options vested on the grant date, 33% of the options will vest on the first anniversary of the grant date, and the remaining balance will vest on the second anniversary of the grant date (July 6, 2028).

	/s/ James T. Sims	07/08/2026
	** 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.
* Form 4: SEC 1474 (03-26)