Aura Minerals director sells 41K BDRs, converts

Director Bruno Sousa Mauad, via Kapitalo Investimentos, rebalanced indirect holdings by selling BDRs and acquiring Aura Minerals common shares.

Rhea-AI Filing Summary

Aura Minerals Inc. (AUGO) reported that director Bruno Sousa Mauad, through Kapitalo Investimentos, executed related transactions on September 21, 2026 involving Brazilian Depositary Receipts (BDRs) and common shares. A total of 41,334 BDRs were sold and 1,600 common shares were acquired via conversion, resulting in 136,041 common shares held indirectly after the transactions. The prices reported are weighted average prices, and no Rule 10b5-1 trading plan is indicated.

Insider Trade Summary

Net Seller: 41,334 shares

Net Sell 3 txns

Insider Sousa Mauad Bruno

Role Director

Sold 41,334 shs ($1.22M)

Type	Security	Shares	Price	Value
Sale	Brazilian Depositary Receipts F1, F2	41,334	$29.6206	$1.22M
Conversion	Brazilian Depositary Receipts F1, F4	4,800	$29.1538	$140K
Conversion	Common Shares F3	1,600	$87.3906	$140K

Holdings After Transaction: Brazilian Depositary Receipts — 12,743,176 contracts (Indirect, By Kapitalo Investimentos); Common Shares — 136,041 shares (Indirect, By Kapitalo Investimentos)

Footnotes (4)

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 $29.34 to $29.76, 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$151.41 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 21, 2026.
3. F3. The price reported is a weighted average price. These shares were bought in multiple transactions at prices ranging from $86.90 to $87.85, 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 shares bought at each separate price within the ranges set forth in footnote (3) to this Form 4. The source of funds for the purchase was the sale of an equivalent number of BDRs, therefore effectively converting the interest in BDRs to an equivalent interest in common shares. See corresponding transaction in table II below.
4. F4. The price reported is a weighted average price. These BDRs were sold in multiple transactions at prices ranging from $28.97 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$149.03 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 21, 2026. The proceeds of the sale were used to purchase an equivalent number of common shares, therefore effectively converting the interest in BDRs to an equivalent interest in common shares. See corresponding transaction in table I above.

Key Figures

BDRs sold: 41,334 Brazilian Depositary Receipts BDR weighted average sale price: $29.6206 per BDR BDRs converted: 4,800 Brazilian Depositary Receipts +4 more

7 metrics

BDRs sold 41,334 Brazilian Depositary Receipts Indirect sale on September 21, 2026

BDR weighted average sale price $29.6206 per BDR Indirect BDR sale on September 21, 2026

BDRs converted 4,800 Brazilian Depositary Receipts Conversion of derivative security on September 21, 2026

Common shares acquired via conversion 1,600 common shares Non-derivative acquisition through conversion on September 21, 2026

Common share purchase weighted average price $87.3906 per share Indirect acquisition of 1,600 common shares

Indirect common share holdings after transaction 136,041 common shares Held indirectly through Kapitalo Investimentos after September 21, 2026 transactions

BDR-to-common share ratio 3 BDRs per 1 common share Relationship between BDRs and common shares as stated in footnotes

Key Terms

Brazilian Depositary Receipts, weighted average price, conversion of derivative security, indirect ownership, +1 more

5 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 for multiple transactions."

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.

conversion of derivative security financial

"The transaction code description is Conversion of derivative security."

indirect ownership financial

"The holdings are reported as indirect with nature of ownership By Kapitalo Investimentos."

pecuniary interest financial

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

FAQ

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

What insider transactions did Aura Minerals Inc. (AUGO) report for September 21, 2026?

Aura Minerals reported that director Bruno Sousa Mauad, through Kapitalo Investimentos, sold 41,334 Brazilian Depositary Receipts and acquired 1,600 common shares via conversion on September 21, 2026, effectively shifting exposure from BDRs to common shares.

How many Aura Minerals (AUGO) BDRs were sold in this Form 4 filing?

The filing shows indirect sales of 41,334 Brazilian Depositary Receipts at a weighted average price of $29.6206 per BDR. The BDRs were sold in multiple trades within a disclosed price range, as detailed in the footnotes.

What Aura Minerals (AUGO) common shares were acquired in the reported transactions?

The reporting person, via Kapitalo Investimentos, acquired 1,600 common shares of Aura Minerals through a conversion of BDRs at a weighted average price of $87.3906 per share, funded by the sale of an equivalent number of BDRs.

What are Bruno Sousa Mauad’s indirect Aura Minerals (AUGO) holdings after these transactions?

After the September 21, 2026 transactions, the filing reports 136,041 Aura Minerals common shares held indirectly through Kapitalo Investimentos. This figure reflects holdings of common shares only, not BDRs.

Were the Aura Minerals (AUGO) insider trades made under a Rule 10b5-1 trading plan?

No. The filing indicates that no Rule 10b5-1 trading plan is reported for these transactions, and the document-level 10b5-1 checkbox is not marked as being made under such a plan.

How do Aura Minerals (AUGO) BDRs relate to common shares in this Form 4?

The footnotes state that three BDRs represent one common share of Aura Minerals. The reported sales and conversions reflect movements between BDRs and underlying common shares using this 3-to-1 ratio.

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

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Available on EDGAR 09/22/2026 - 05:42 PM Accepted by SEC EDGAR 09/22/2026 - 05:41 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^*

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)
09/21/2026

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	09/21/2026		C		1,600	A	$87.3906(3)	136,041	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Brazilian Depositary Receipts	(1)	09/21/2026		S			41,334	(1)	(1)	Common shares, no par value	13,778	$29.6206(2)	12,747,976	I	By Kapitalo Investimentos
Brazilian Depositary Receipts	(1)	09/21/2026		C			4,800	(1)	(1)	Common shares, no par value	1,600	$29.1538(4)	12,743,176	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 $29.34 to $29.76, 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$151.41 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 21, 2026.

3. The price reported is a weighted average price. These shares were bought in multiple transactions at prices ranging from $86.90 to $87.85, 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 shares bought at each separate price within the ranges set forth in footnote (3) to this Form 4. The source of funds for the purchase was the sale of an equivalent number of BDRs, therefore effectively converting the interest in BDRs to an equivalent interest in common shares. See corresponding transaction in table II below.

4. The price reported is a weighted average price. These BDRs were sold in multiple transactions at prices ranging from $28.97 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$149.03 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 21, 2026. The proceeds of the sale were used to purchase an equivalent number of common shares, therefore effectively converting the interest in BDRs to an equivalent interest in common shares. See corresponding transaction in table I above.

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	09/22/2026
	** 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)