What BDR-to-share conversion did Aura Minerals (AUGO) disclose in this Form 4?

The Form 4 states that three BDRs represent one common share of Aura Minerals. One transaction converted 750,000 BDRs, corresponding to 250,000 underlying common shares, from BDRs into common shares of the issuer.

What common share trades of Aura Minerals (AUGO) were reported on August 20, 2026?

Indirect holdings sold 125,000 common shares at $86.00 per share and acquired 250,000 common shares at $86.57 per share, with the acquisition described as shares obtained through the exchange of Brazilian Depositary Receipts into common shares.

Aura Minerals director sells net 239,617 shares

Q: Were the Aura Minerals (AUGO) Form 4 trades executed under a Rule 10b5-1 trading plan?

No. The Form 4 indicates the Rule 10b5-1 checkbox is not affirmed (aff_10b5_one is false), and no footnote states that the transactions were made pursuant to a Rule 10b5-1 or pre-arranged trading plan.

Q: How many Brazilian Depository Receipts of Aura Minerals (AUGO) were sold and at what prices?

Indirect holdings sold 39,533 BDRs at a weighted average of $28.32 and 75,084 BDRs at a weighted average of $29.06, each in multiple trades within stated price ranges, with prices converted from Brazilian reais using the Banco Central do Brasil rate on August 20, 2026.

Q: Who actually holds the Aura Minerals (AUGO) securities reported for Bruno Sousa Mauad?

All transactions are reported as indirect ownership "By Kapitalo Investimentos". The reporting person disclaims beneficial ownership of the securities except to the extent of any pecuniary interest, so the positions are attributed to Kapitalo Investimentos for these trades.

Aura Minerals Inc. (AUGO) director Bruno Sousa Mauad, through indirect holdings "By Kapitalo Investimentos", reported multiple transactions on August 20, 2026 involving Brazilian Depository Receipts (BDRs) and common shares.

Filing Impact

(Neutral)

Filing Sentiment

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Sentiment and the balance of points

Rhea-AI Sentiment reads the wording of the document, how positive or negative its language is on a 1 to 5 scale. The balance of points shown with the takes weighs what the document actually discloses, so the two can disagree, for example when a trial that missed its main goal is described in upbeat language.

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Form Type

Rhea-AI Filing Summary

Aura Minerals Inc. (AUGO) director Bruno Sousa Mauad, through indirect holdings "By Kapitalo Investimentos", reported multiple transactions on August 20, 2026 involving Brazilian Depository Receipts (BDRs) and common shares. Indirect holdings sold 114,617 BDRs in two weighted-average priced open-market transactions and converted 750,000 BDRs into 250,000 common shares. On the same date, the indirect holder sold 125,000 common shares and acquired 250,000 common shares through the BDR exchange. The reporting person disclaims beneficial ownership beyond any pecuniary interest.

Insider Trade Summary

Exercise and sale activity reported; no spread calculated

Exercise and Sale 5 txns

Insider Sousa Mauad Bruno

Role Director

Sold 239,617 shs ($14.05M)

Approx. gross sale proceeds $10.75M

Type	Security	Shares	Price	Value
Sale	Brazilian Depository Receipts ^{F2, F3}	39,533	$28.32	$1.12M
Sale	Brazilian Depository Receipts ^{F2, F4}	75,084	$29.06	$2.18M
Conversion	Brazilian Depository Receipts ^{F2, F5, F6}	750,000	$28.93	$21.70M
Sale	Common Shares	125,000	$86.00	$10.75M
Conversion	Common Shares ^F1	250,000	$86.57	$21.64M

Holdings After Transaction: Brazilian Depository Receipts — 30,290,344 contracts (Indirect, By Kapitalo Investimentos); Common Shares — 293,765 shares (Indirect, By Kapitalo Investimentos)

Footnotes (6)

F1. The shares were acquired through the exchange of Brazilian Depositary Receipts ("BDRs") into Common Shares, no par value ("Common Shares"), of the Issuer.
F2. BDRs are certificates representing Common Shares of the Issuer. Three BDRs represent one Common Share of the Issuer.
F3. The price reported is a weighted average price. These BDRs were sold in multiple transactions at prices ranging from $27.88 to $28.83, 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 (3) to this Form 4. The weighted average price, R$146,43 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 20, 2026.
F4. The price reported is a weighted average price. These BDRs were sold in multiple transactions at prices ranging from $28.84 to $29.30, 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 (4) to this Form 4. The weighted average price, R$150.25 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 20, 2026.
F5. These BDRs were disposed through the exchange of BDRs into Common Shares of the Issuer.
F6. The stated price in USD of $28.93 has been converted from Brazilian Reais to USD using the Banco Central do Brasil's conversion rate as of August 20, 2026.

Key Figures

BDRs sold (first block): 39,533.0000 BDRs BDRs sold (second block): 75,084.0000 BDRs BDRs converted: 750,000.0000 BDRs +4 more

7 metrics

BDRs sold (first block) 39,533.0000 BDRs Indirect sale on 2026-08-20 at weighted average price $28.3200 per BDR

BDRs sold (second block) 75,084.0000 BDRs Indirect sale on 2026-08-20 at weighted average price $29.0600 per BDR

BDRs converted 750,000.0000 BDRs Indirect conversion on 2026-08-20 into 250,000.0000 underlying common shares

Common shares sold 125,000.0000 shares Indirect sale on 2026-08-20 at $86.0000 per share

Common shares acquired 250,000.0000 shares Indirect acquisition on 2026-08-20 via BDR exchange at $86.5700 per share

BDR ratio 3 BDRs per 1 common share Footnote states three BDRs represent one common share of the issuer

Net buy/sell shares 239,617 shares (net sell) Form 4 transaction summary netBuySellShares and netBuySellDirection

Key Terms

Brazilian Depository Receipts, weighted average price, pecuniary interest, Conversion of derivative security, +1 more

5 terms

Brazilian Depository Receipts financial

"The shares were acquired through the exchange of Brazilian Depositary Receipts"

Brazilian Depositary Receipts are financial certificates issued in Brazil that represent ownership of shares in companies listed outside Brazil, allowing local investors to buy and sell foreign stocks without using a foreign exchange. They matter because they let investors easily access international companies while trading in local currency and under domestic rules, exposing portfolios to foreign business performance and currency moves much like buying a locally labeled version of a foreign product.

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"

Conversion of derivative security financial

"transaction_code_description": "Conversion of derivative security""

indirect ownership financial

"direct_or_indirect": "I", "nature_of_ownership": "By Kapitalo Investimentos""

FAQ

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

What insider transactions did Aura Minerals Inc. (AUGO) report on August 20, 2026?

On August 20, 2026, an indirect holder associated with director Bruno Sousa Mauad sold 114,617 BDRs, converted 750,000 BDRs into 250,000 common shares, sold 125,000 common shares, and acquired 250,000 common shares, all reported as indirect ownership "By Kapitalo Investimentos".

Were the Aura Minerals (AUGO) Form 4 trades executed under a Rule 10b5-1 trading plan?

No. The Form 4 indicates the Rule 10b5-1 checkbox is not affirmed (aff_10b5_one is false), and no footnote states that the transactions were made pursuant to a Rule 10b5-1 or pre-arranged trading plan.

How many Brazilian Depository Receipts of Aura Minerals (AUGO) were sold and at what prices?

Indirect holdings sold 39,533 BDRs at a weighted average of $28.32 and 75,084 BDRs at a weighted average of $29.06, each in multiple trades within stated price ranges, with prices converted from Brazilian reais using the Banco Central do Brasil rate on August 20, 2026.

Who actually holds the Aura Minerals (AUGO) securities reported for Bruno Sousa Mauad?

All transactions are reported as indirect ownership "By Kapitalo Investimentos". The reporting person disclaims beneficial ownership of the securities except to the extent of any pecuniary interest, so the positions are attributed to Kapitalo Investimentos for these trades.

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

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Available on EDGAR 08/24/2026 - 06:50 PM EDT Accepted by SEC EDGAR 08/24/2026 - 06:49 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)
08/20/2026

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	08/20/2026		S		125,000	D	$86	43,765	I	By Kapitalo Investimentos
Common Shares	08/20/2026		C		250,000⁽¹⁾	A	$86.57	293,765	I	By Kapitalo Investimentos

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 Depository Receipts	⁽²⁾	08/20/2026		S			39,533	⁽²⁾	⁽²⁾	Common shares, no par value	13,177.67	$28.32⁽³⁾	15,595,256	I	By Kapitalo Investimentos
Brazilian Depository Receipts	⁽²⁾	08/20/2026		S			75,084	⁽²⁾	⁽²⁾	Common shares, no par value	25,028	$29.06⁽⁴⁾	15,520,172	I	By Kapitalo Investimentos
Brazilian Depository Receipts	⁽²⁾	08/20/2026		C		750,000⁽⁵⁾		⁽²⁾	⁽²⁾	Common shares, no par value	250,000	$28.93⁽⁶⁾	14,770,172	I	By Kapitalo Investimentos

Explanation of Responses:

1. The shares were acquired through the exchange of Brazilian Depositary Receipts ("BDRs") into Common Shares, no par value ("Common Shares"), of the Issuer.

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

3. The price reported is a weighted average price. These BDRs were sold in multiple transactions at prices ranging from $27.88 to $28.83, 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 (3) to this Form 4. The weighted average price, R$146,43 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 20, 2026.

4. The price reported is a weighted average price. These BDRs were sold in multiple transactions at prices ranging from $28.84 to $29.30, 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 (4) to this Form 4. The weighted average price, R$150.25 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 20, 2026.

5. These BDRs were disposed through the exchange of BDRs into Common Shares of the Issuer.

6. The stated price in USD of $28.93 has been converted from Brazilian Reais to USD using the Banco Central do Brasil's conversion rate as of August 20, 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	08/24/2026
	** 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