Aura Minerals director sells 14,874 BDRs

Q: At what price were the Aura Minerals (AUGO) BDRs sold in this Form 4?

The BDRs were sold at a weighted average price of $29.89 per BDR. Footnotes state trades occurred in multiple transactions between $29.84 and $29.92 per BDR, and that the weighted average price reflects R$154.22 BRL converted to USD using Banco Central do Brasil’s rate.

Q: What is the relationship between Aura Minerals (AUGO) BDRs and common shares?

The filing explains that Brazilian Depositary Receipts (BDRs) are certificates representing common shares of Aura Minerals, and that three BDRs represent one common share of the issuer, establishing a 3:1 BDR-to-share ratio.

Q: Was the Aura Minerals (AUGO) Form 4 sale made under a Rule 10b5-1 trading plan?

No. The Rule 10b5-1 checkbox is not marked as true in the filing’s data (aff_10b5_one is false), and the footnotes do not state that the transaction was executed under a Rule 10b5-1 trading plan.

Q: Does Bruno Sousa Mauad claim full beneficial ownership of the Aura Minerals (AUGO) BDRs reported?

No. The filing states that each reporting person disclaims beneficial ownership of the reported securities except to the extent of any pecuniary interest, and that the report should not be deemed an admission of beneficial ownership for Section 16 or other purposes.

Aura Minerals Inc. (AUGO) director Bruno Sousa Mauad reported an indirect sale of Brazilian Depositary Receipts (BDRs) held by Kapitalo Investimentos.

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Form Type

Rhea-AI Filing Summary

Aura Minerals Inc. (AUGO) director Bruno Sousa Mauad reported an indirect sale of Brazilian Depositary Receipts (BDRs) held by Kapitalo Investimentos. On 2026-08-27, 14,874 BDRs were sold as a derivative transaction at a weighted average of $29.89 per BDR, representing 4,958 underlying common shares at a 3:1 BDR-to-share ratio. Following the sale, 13,912,369 BDRs remained held indirectly. The reporting person disclaims beneficial ownership beyond any pecuniary interest.

Insider Trade Summary

Net Seller: 14,874 shares

Net Sell 1 txn

Insider Sousa Mauad Bruno

Role Director

Sold 14,874 shs ($445K)

Type	Security	Shares	Price	Value
Sale	Brazilian Depositary Receipts ^{F1, F2}	14,874	$29.89	$445K

Holdings After Transaction: Brazilian Depositary Receipts — 13,912,369 contracts (Indirect, By Kapitalo Investimentos)

Footnotes (2)

F1. BDRs are certificates representing Common Shares of the Issuer. Three BDRs represent one Common Share of the Issuer.
F2. The price reported is a weighted average price. These BDRs were sold in multiple transactions at prices ranging from $29.84 to $29.92, 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$154.22 Brazilian reais ("BRL") per BDR, has been converted to U.S. dollars ("USD") using the Banco Central do Brasil's conversion rate as of August 27, 2026.

Key Figures

BDRs sold: 14,874 Brazilian Depositary Receipts Weighted average sale price per BDR: $29.89 per BDR Weighted average price in BRL: R$154.22 per BDR +3 more

6 metrics

BDRs sold 14,874 Brazilian Depositary Receipts Indirect sale by Kapitalo Investimentos on 2026-08-27

Weighted average sale price per BDR $29.89 per BDR Multiple transactions between $29.84 and $29.92 per BDR

Weighted average price in BRL R$154.22 per BDR Converted to USD using Banco Central do Brasil’s rate as of August 27, 2026

BDRs held after transaction 13,912,369 Brazilian Depositary Receipts Indirect holdings following the 2026-08-27 sale

Underlying common shares per BDR 3 BDRs represent 1 common share BDR-to-common share ratio for Aura Minerals Inc.

Underlying common shares for BDRs sold 4,958 common shares Underlying security shares corresponding to 14,874 BDRs

Key Terms

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

4 terms

Brazilian Depositary Receipts financial

"Brazilian Depositary Receipts (BDRs) are certificates 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. These BDRs were sold"

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

"disclaims beneficial ownership... except to the extent of its pecuniary interest"

Banco Central do Brasil financial

"converted to U.S. dollars ("USD") using the Banco Central do Brasil's conversion rate"

FAQ

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

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

Aura Minerals reported that director Bruno Sousa Mauad, through Kapitalo Investimentos, indirectly sold 14,874 Brazilian Depositary Receipts (BDRs) on 2026-08-27 as a derivative transaction, with each BDR representing common shares of Aura Minerals.

At what price were the Aura Minerals (AUGO) BDRs sold in this Form 4?

The BDRs were sold at a weighted average price of $29.89 per BDR. Footnotes state trades occurred in multiple transactions between $29.84 and $29.92 per BDR, and that the weighted average price reflects R$154.22 BRL converted to USD using Banco Central do Brasil’s rate.

How many Aura Minerals (AUGO) BDRs does the reporting person hold after this transaction?

After the reported sale, the indirect holdings associated with the reporting person totaled 13,912,369 Brazilian Depositary Receipts. These are held indirectly by Kapitalo Investimentos, as indicated in the ownership nature field.

What is the relationship between Aura Minerals (AUGO) BDRs and common shares?

The filing explains that Brazilian Depositary Receipts (BDRs) are certificates representing common shares of Aura Minerals, and that three BDRs represent one common share of the issuer, establishing a 3:1 BDR-to-share ratio.

Was the Aura Minerals (AUGO) Form 4 sale made under a Rule 10b5-1 trading plan?

No. The Rule 10b5-1 checkbox is not marked as true in the filing’s data (aff_10b5_one is false), and the footnotes do not state that the transaction was executed under a Rule 10b5-1 trading plan.

Does Bruno Sousa Mauad claim full beneficial ownership of the Aura Minerals (AUGO) BDRs reported?

No. The filing states that each reporting person disclaims beneficial ownership of the reported securities except to the extent of any pecuniary interest, and that the report should not be deemed an admission of beneficial ownership for Section 16 or other purposes.

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Available on EDGAR 08/28/2026 - 06:16 PM EDT Accepted by SEC EDGAR 08/28/2026 - 06:16 PM EDT

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)
08/27/2026

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)

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)
Brazilian Depositary Receipts	⁽¹⁾	08/27/2026		S			14,874	⁽¹⁾	⁽¹⁾	Common Shares, no par value	4,958	$29.89⁽²⁾	13,912,369	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 $29.84 to $29.92, 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$154.22 Brazilian reais ("BRL") per BDR, has been converted to U.S. dollars ("USD") using the Banco Central do Brasil's conversion rate as of August 27, 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	08/28/2026
	** 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