Aura Minerals director sells 1,803 BDRs

A director associated with Aura Minerals reported an indirect sale of Brazilian Depositary Receipts while retaining a large remaining indirect position.

Available on EDGAR 09/09/2026 - 08:42 PM EDT Accepted by SEC EDGAR 09/09/2026 - 08:41 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Aura Minerals Inc. (AUGO) director Sousa Mauad Bruno reported an indirect sale of 1,803 Brazilian Depositary Receipts (BDRs) representing 601 common shares on September 8, 2026, through Kapitalo Investimentos. The weighted average sale price was $28.8611 per BDR, and indirect holdings after the transaction were 13,307,357 BDRs. No Rule 10b5-1 trading plan is reported, and beneficial ownership is disclaimed except to the extent of any pecuniary interest.

Insider Trade Summary

Net Seller: 1,803 shares

Net Sell 1 txn

Insider Sousa Mauad Bruno

Role Director

Sold 1,803 shs ($52K)

Type	Security	Shares	Price	Value
Sale	Brazilian Depositary Receipts F1, F2	1,803	$28.8611	$52K

Holdings After Transaction: Brazilian Depositary Receipts — 13,307,357 contracts (Indirect, By Kapitalo Investimentos)

Holdings Before and After: Brazilian Depositary Receipts, 13,309,160 to 13,307,357 contracts (Indirect, By Kapitalo Investimentos)

Footnotes (2)

1. F1. BDRs are certificates representing Common Shares of the Issuer. Three BDRs represent one Common Share of the Issuer.
2. F2. The price reported is a weighted average price. These BDRs were sold in multiple transactions at prices ranging from $28.82 to $28.94, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of BDRs sold at each separate price within the ranges set forth in footnote (2) to this Form 4. The weighted average price, R$146.79 Brazilian reais ("BRL") per BDR, has been converted to U.S. dollars ("USD") using the Banco Central do Brasil's conversion rate as of September 8, 2026.

Key Figures

BDRs sold: 1,803 Brazilian Depositary Receipts Underlying common shares sold: 601 common shares Weighted average sale price: $28.8611 per BDR +3 more

6 metrics

BDRs sold 1,803 Brazilian Depositary Receipts Indirect sale reported for September 8, 2026

Underlying common shares sold 601 common shares Three BDRs represent one common share

Weighted average sale price $28.8611 per BDR Multiple trades between $28.82 and $28.94 on September 8, 2026

Weighted average price in BRL R$146.79 per BDR Converted using Banco Central do Brasil rate as of September 8, 2026

Indirect holdings after transaction 13,307,357 Brazilian Depositary Receipts Position attributed to the reporting person through Kapitalo Investimentos

BDR to common share ratio 3 BDRs per 1 common share Each Brazilian Depositary Receipt represents one-third of a common share

Key Terms

Brazilian Depositary Receipts, weighted average price, pecuniary interest, Banco Central do Brasil

4 terms

Brazilian Depositary Receipts financial

"The security title reported is Brazilian Depositary Receipts representing common shares"

Brazilian Depositary Receipts (BDRs) are certificates traded on Brazilian exchanges that represent ownership of shares in foreign companies, allowing local investors to buy and sell exposure to those overseas stocks without opening foreign brokerage accounts. They matter because they let investors diversify across global companies using local currency and trading hours, similar to buying a locally issued voucher for a foreign product, while still exposing portfolios to the performance and risks of the underlying foreign shares.

weighted average price financial

"The price reported is a weighted average price based on multiple trades"

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

pecuniary interest financial

"Each Reporting Person disclaims beneficial ownership except to the extent of its pecuniary interest"

Banco Central do Brasil financial

"The BRL price was converted to USD using the Banco Central do Brasil's rate"

FAQ

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

What insider transaction did Aura Minerals (AUGO) disclose in this Form 4?

Aura Minerals disclosed that director Sousa Mauad Bruno indirectly sold 1,803 Brazilian Depositary Receipts (BDRs) on September 8, 2026, through Kapitalo Investimentos, at a weighted average price of $28.8611 per BDR.

How many Aura Minerals (AUGO) shares were represented by the BDRs sold?

The 1,803 BDRs sold represent 601 common shares of Aura Minerals, as three BDRs represent one common share according to the filing’s footnote.

What is the insider’s remaining indirect position in Aura Minerals (AUGO) after the sale?

After the reported sale, the filing states an indirect holding of 13,307,357 Brazilian Depositary Receipts (BDRs) for the reporting person through Kapitalo Investimentos.

At what price were the Aura Minerals (AUGO) BDRs sold?

The filing reports a weighted average price of $28.8611 per BDR, based on multiple transactions between $28.82 and $28.94 per BDR. The weighted average corresponds to R$146.79 per BDR converted using Banco Central do Brasil’s rate on September 8, 2026.

Was the Aura Minerals (AUGO) insider sale made under a Rule 10b5-1 plan?

No. The Form 4 indicates no Rule 10b5-1 trading plan for this transaction, and there is no footnote stating that the sale was made pursuant to such a pre-arranged plan.

How does the filing describe the insider’s beneficial ownership of Aura Minerals (AUGO) securities?

Each reporting person disclaims beneficial ownership of the reported securities except to the extent of any pecuniary interest. The BDRs are held indirectly through Kapitalo Investimentos as noted in the nature of ownership.

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

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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^*

Sousa Mauad Bruno

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/08/2026

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
Brazilian Depositary Receipts	(1)	09/08/2026		S			1,803	(1)	(1)	Common shares, no par value	601	$28.8611(2)	13,307,357	I	By Kapitalo Investimentos

Explanation of Responses:

1. BDRs are certificates representing Common Shares of the Issuer. Three BDRs represent one Common Share of the Issuer.

2. The price reported is a weighted average price. These BDRs were sold in multiple transactions at prices ranging from $28.82 to $28.94, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of BDRs sold at each separate price within the ranges set forth in footnote (2) to this Form 4. The weighted average price, R$146.79 Brazilian reais ("BRL") per BDR, has been converted to U.S. dollars ("USD") using the Banco Central do Brasil's conversion rate as of September 8, 2026.

Remarks:

Each Reporting Person disclaims beneficial ownership in the securities reported on this Form 4 except to the extent of its pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

	Bruno Sousa Mauad	09/09/2026
	** 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)