NioCorp (NB) CEO Mark A. Smith awarded 293,160 stock options expiring 2031

Rhea-AI Filing Summary

NioCorp Developments Ltd reported that President & CEO Mark A. Smith received an award of 293,160 employee stock options to buy common shares at an exercise price of $4.74 per share. The options expire on July 6, 2031 and represent direct ownership.

According to the vesting terms, 34% of these 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 grant, not an open-market transaction.

Insights

Equity compensation analyst

CEO receives time-vested stock option grant as routine equity compensation.

The filing shows Mark A. Smith, President & CEO of NioCorp Developments Ltd, was granted 293,160 stock options with a strike price of $4.74 per share, expiring on July 6, 2031. This is a typical long-term incentive award rather than a market purchase.

The vesting schedule is staged: 34% vested immediately, 33% on the first anniversary, and the rest on July 6, 2028. Such time-based vesting is designed to align executive retention and performance over several years but does not itself signal a change in management’s outlook on the stock.

There are no sales, exercises, or tax-withholding events reported in this filing, and the total derivative position visible here is the newly granted options. Future filings may show when portions are exercised or additional awards are made.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Smith Mark A.

Role President & CEO

Type	Security	Shares	Price	Value
Grant/Award	Employee Stock Option (Right to Buy)	293,160	$0.00	$0.00

Holdings After Transaction: Employee Stock Option (Right to Buy) — 293,160 shares (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

Option grant size: 293,160 options Exercise price: $4.74 per share Expiration date: July 6, 2031 +5 more

8 metrics

Option grant size 293,160 options Employee Stock Option (Right to Buy) granted to CEO

Exercise price $4.74 per share Strike price for the employee stock options

Expiration date July 6, 2031 Option term end for granted derivatives

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

First anniversary vesting 33% of options Vests on first anniversary of grant date

Final vesting date July 6, 2028 Remaining balance vests on second anniversary

Shares underlying options 293,160 shares Underlying common shares linked to the options

Post-transaction derivative holdings 293,160 options Total options held following this grant

Key Terms

Employee Stock Option (Right to Buy), grant, award, or other acquisition, exercise price, vested on the grant date, +2 more

6 terms

Employee Stock Option (Right to Buy) financial

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

grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

exercise price financial

"conversion_or_exercise_price: 4.7400"

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

vested on the grant date financial

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

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

What did NioCorp (NB) CEO Mark A. Smith report in this Form 4?

He reported a grant of 293,160 employee stock options to buy NioCorp common shares at an exercise price of $4.74, expiring July 6, 2031. This is a compensation-related award, not an open-market share purchase or sale.

What are the key terms of Mark A. Smith’s new stock options from NioCorp (NB)?

The options cover 293,160 common shares at a $4.74 exercise price and expire July 6, 2031. They are held directly by Smith and classified as an Employee Stock Option (Right to Buy) derivative security in the Form 4.

How do the NioCorp (NB) CEO’s new stock options vest over time?

According to the footnote, 34% of the options vested on the grant date, 33% will vest on the first anniversary, and the remaining balance will vest on the second anniversary, which falls on July 6, 2028, creating a staggered vesting schedule.

Does this NioCorp (NB) Form 4 show any insider share sales or open-market buys?

No. The filing only reports an acquisition of derivative securities via a stock option grant coded as “A” for grant, award, or other acquisition. There are no open-market purchases, sales, gifts, or tax-withholding dispositions reported in this Form 4.

How many shares could NioCorp (NB) CEO acquire if he exercises all new options?

If fully exercised, the 293,160 stock options would allow purchase of 293,160 NioCorp common shares at $4.74 per share. Actual share ownership will depend on future exercise decisions and any additional equity awards or transactions.

What does the expiration date mean for NioCorp (NB) CEO’s stock options?

The options expire on July 6, 2031, meaning Smith can exercise them at $4.74 per share only until that date. After expiration, any unexercised options become worthless, so timing of exercise matters for realizing potential value.

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

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/08/2026 - 04:03 PM 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^*

Smith Mark A.

(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)

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

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		293,160		(1)	07/06/2031	Common Shares	293,160	$0	293,160	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/ Mark A. Smith	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)