Aura Minerals CFO exercises options for 7,926 shares

Aura Minerals Inc. CFO and Corporate Secretary Joao Kleber Dos Santos Cardoso exercised stock options to acquire 7,926 Common Shares at C$17.35 per share.

Rhea-AI Filing Summary

Aura Minerals Inc. CFO and Corporate Secretary Joao Kleber Dos Santos Cardoso exercised stock options to acquire 7,926 Common Shares at C$17.35 per share. Following the transaction, he directly holds 154,917 Common Shares and 95,406 stock options. The filing shows an exercise-and-hold pattern with no share sales reported.

Insider Trade Summary

7,926 shares exercised/converted

Exercise 2 txns

Insider Dos Santos Cardoso Joao Kleber

Role CFO and Corporate Secretary

Type	Security	Shares	Price	Value
Exercise	Stock Option (right to buy)	7,926	$17.35	$138K
Exercise	Common Shares	7,926	$17.35	$138K

Holdings After Transaction: Stock Option (right to buy) — 95,406 contracts (Direct); Common Shares — 154,917 shares (Direct)

Footnotes (2)

1. F1. Canadian Dollars.
2. F2. Reflects stock options to purchase Common Shares. These stock options were granted on January 10, 2025 and vest in three equal annual installments starting on January 10, 2026.

Key Figures

Options exercised: 7,926 shares Exercise price: C$17.35 per share Shares held after: 154,917 Common Shares +3 more

6 metrics

Options exercised 7,926 shares Common Shares acquired via option exercise on 2026-05-25

Exercise price C$17.35 per share Stock Option (right to buy) exercise price

Shares held after 154,917 Common Shares Direct ownership following transaction

Options remaining 95,406 stock options Derivative holdings following transaction

Option expiration January 10, 2032 Stock option expiration date

Grant date January 10, 2025 Stock options grant date per footnote

Key Terms

Stock Option (right to buy), Common Shares, derivative security, Canadian Dollars

4 terms

Stock Option (right to buy) financial

"security_title: "Stock Option (right to buy)""

Common Shares financial

"security_title: "Common Shares""

Common shares are the basic units of ownership in a company that give holders a claim on profits and a right to vote on key matters, like electing the board. Think of them as membership cards in a club: they let you share in successes and losses, but in a bankruptcy or liquidation they are paid after creditors and preferred shareholders, so their value can swing more and matters for assessing risk and potential return.

derivative security financial

"transaction_code_description: "Exercise or conversion of derivative security""

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

Canadian Dollars financial

"footnote: "Canadian Dollars.""

FAQ

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

What insider activity did Aura Minerals (AUGO) report in this Form 4?

Aura Minerals reported that its CFO and Corporate Secretary, Joao Kleber Dos Santos Cardoso, exercised stock options to acquire 7,926 Common Shares at C$17.35 per share. This increased his direct share ownership while leaving a sizeable remaining option position outstanding.

Did the Aura Minerals (AUGO) CFO sell any shares in this Form 4?

No share sales were reported. The Form 4 shows only an exercise of stock options for 7,926 Common Shares at C$17.35, with no corresponding sale transaction code. This reflects an exercise-and-hold pattern rather than an exercise-and-sell sequence.

How many Aura Minerals (AUGO) shares does the CFO hold after this transaction?

After exercising options, the CFO directly holds 154,917 Common Shares. He also retains 95,406 stock options, giving him both current equity exposure and additional potential exposure through remaining options, according to the reported post-transaction holdings data.

What were the terms of the Aura Minerals (AUGO) stock options exercised?

The exercised stock options covered 7,926 Common Shares at an exercise price of C$17.35 per share and expire on January 10, 2032. Footnotes state these options were granted on January 10, 2025 and vest in three equal annual installments beginning January 10, 2026.

What does the Form 4 reveal about remaining Aura Minerals (AUGO) CFO stock options?

Following the reported exercise, the CFO holds 95,406 stock options. These options relate to Common Shares and carry an exercise price of C$17.35, with an expiration date of January 10, 2032, indicating substantial remaining derivative-based exposure to Aura Minerals shares.

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

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Accepted by SEC EDGAR 05/26/2026 - 07:45 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^*

Dos Santos Cardoso Joao Kleber

(Last) (First) (Middle)

C/O AURA TECHNICAL SERVICES INC.

3390 MARY ST, SUITE 116

(Street)

COCONUT GROVE FLORIDA 33133

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Aura Minerals Inc. [ AUGO ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CFO and Corporate Secretary

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/25/2026

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
Common Shares	05/25/2026		M		7,926	A	$17.35(1)	154,917	D

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
Stock Option (right to buy)	$17.35(1)	05/25/2026		M			7,926	(2)	01/10/2032	Common Shares	7,926	$17.35(1)	95,406	D

Explanation of Responses:

1. Canadian Dollars.

2. Reflects stock options to purchase Common Shares. These stock options were granted on January 10, 2025 and vest in three equal annual installments starting on January 10, 2026.

	/s/ Joao Kleber Dos Santos Cardoso	05/26/2026
	** 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)