Was the Aura Minerals (AUGO) CFO’s share disposition an open-market sale?

The 2,964-share disposition on May 27, 2026 was a tax-withholding transaction, not an open-market sale. It was classified as payment of tax liability by delivering securities, commonly used to satisfy taxes on equity compensation.

Aura Minerals (AUGO) CFO exercises options, withholds shares to cover taxes

Filing Impact

(Very High)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Aura Minerals Inc. reported insider equity transactions by CFO and Corporate Secretary Joao Kleber Dos Santos Cardoso. On May 11, 2026, he exercised stock options to acquire 26,158 Common Shares at C$17.35 per share, increasing his direct holdings to 181,075 Common Shares. A corresponding derivative entry shows his stock option position at 69,248 options following this exercise, with an exercise price of C$17.35 and an expiration on January 10, 2032. On May 27, 2026, 2,964 Common Shares were disposed of at C$76.42 per share to cover tax obligations, a tax-withholding transaction rather than an open-market sale, leaving him with 178,111 Common Shares held directly. Footnotes clarify these amounts are in Canadian dollars and that the options were granted on January 10, 2025 and vest in three equal annual installments starting January 10, 2026.

Insider Trade Summary

26,158 shares exercised/converted

Mixed 3 txns

Insider Dos Santos Cardoso Joao Kleber

Role CFO and Corporate Secretary

Type	Security	Shares	Price	Value
Tax Withholding	Common Shares	2,964	$76.42	$227K
Exercise	Stock Option (right to buy)	26,158	$17.35	$454K
Exercise	Common Shares	26,158	$17.35	$454K

Holdings After Transaction: Common Shares — 178,111 shares (Direct, null); Stock Option (right to buy) — 69,248 shares (Direct, null)

Footnotes (1)

Canadian Dollars. 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

Option exercise shares: 26,158 Common Shares Exercise price: C$17.35 per share Tax-withholding shares: 2,964 Common Shares +3 more

6 metrics

Option exercise shares 26,158 Common Shares Exercised on May 11, 2026 at C$17.35 per share

Exercise price <money>C$17.35</money> per share Stock option exercise for Common Shares

Tax-withholding shares 2,964 Common Shares Disposed May 27, 2026 at C$76.42 per share for taxes

Tax-withholding price <money>C$76.42</money> per share Share value used to satisfy tax liability

Shares held after transactions 178,111 Common Shares Direct ownership after May 27, 2026 disposition

Options remaining 69,248 stock options Outstanding after May 11, 2026 exercise, expiring January 10, 2032

Key Terms

Stock Option (right to buy), tax-withholding disposition, Exercise or conversion of derivative security, Common Shares, +1 more

5 terms

Stock Option (right to buy) financial

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

tax-withholding disposition financial

"transaction_action: "tax-withholding disposition""

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

Exercise or conversion of derivative security financial

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

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.

Canadian Dollars financial

"footnote: "Canadian Dollars.""

Form 4 Insider Transactions: What Each Field Means →

05/29/2026 - 04:43 PM

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)
05/11/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Shares	05/11/2026		M		26,158	A	$17.35⁽¹⁾	181,075	D
Common Shares	05/27/2026		F		2,964	D	$76.42	178,111	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Stock Option (right to buy)	$17.35⁽¹⁾	05/11/2026		M			26,158	⁽²⁾	01/10/2032	Common Shares	26,158	$17.35⁽¹⁾	69,248	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	05/29/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transactions did Aura Minerals (AUGO) report for its CFO?

Aura Minerals reported its CFO exercised stock options for 26,158 Common Shares and later disposed of 2,964 shares to cover tax obligations. Both transactions involved directly held shares and reflect routine equity compensation and related tax withholding.

How many Aura Minerals (AUGO) shares does the CFO hold after these transactions?

After the reported transactions, the CFO holds 178,111 Common Shares directly. This figure reflects the May 11, 2026 option exercise and the subsequent May 27, 2026 tax-withholding share disposition recorded in the Form 4 filing.

What was the exercise price of the Aura Minerals (AUGO) stock options?

The stock options were exercised at an exercise price of C$17.35 per Common Share. These options were granted on January 10, 2025 and are part of an award vesting in three equal annual installments beginning January 10, 2026.

How many Aura Minerals (AUGO) stock options remain after the CFO’s exercise?

Following the May 11, 2026 exercise, 69,248 stock options remain outstanding for the CFO. These options carry a C$17.35 exercise price and are scheduled to expire on January 10, 2032, according to the Form 4 disclosure.