Aura Minerals: 181,500 shares bought with BDR sales

Proceeds from BDR sales funded purchases of an equivalent number of common shares, converting the reported interest from BDRs to common shares.

Rhea-AI Filing Summary

Aura Minerals Inc. director Sousa Mauad Bruno reported indirect transactions by Kapitalo Investimentos on September 23, 2026: a purchase of 3,000 BDRs at $28.4942 each, a sale of 544,500 BDRs at a weighted average $28.8821 each, and purchases of 30,900 and 150,600 common shares at weighted-average prices of $85.6419 and $86.8274, respectively. The common-share purchases were funded by sales of equivalent BDRs. No Rule 10b5-1 plan is reported. Bruno disclaimed beneficial ownership except to the extent of any pecuniary interest.

Insider Trade Summary

Net Buyer: 3,000 shares

Net Buy 4 txns

Insider Sousa Mauad Bruno

Role Director

Bought 3,000 shs ($85K)

Type	Security	Shares	Price	Value
Purchase	Brazilian Depositary Receipts F3	3,000	$28.4942	$85K
Conversion	Brazilian Depositary Receipts F3, F4	544,500	$28.8821	$15.73M
Conversion	Common Shares F1	30,900	$85.6419	$2.65M
Conversion	Common Shares F2	150,600	$86.8274	$13.08M

Holdings After Transaction: Brazilian Depositary Receipts — 11,458,676 contracts (Indirect, By Kapitalo Investimentos); Common Shares — 182,541 shares (Indirect, By Kapitalo Investimentos)

Footnotes (4)

1. F1. The price reported is a weighted average price. These shares were bought in multiple transactions at prices ranging from $85.10 to $86.00, 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 (1) 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.
2. F2. The price reported is a weighted average price. These shares were bought in multiple transactions at prices ranging from $86.11 to $86.83, 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 shares bought at each separate price within the ranges set forth in footnote (2) 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.
3. F3. BDRs are certificates representing Common Shares of the Issuer. Three BDRs represent one Common Share of the Issuer.
4. F4. The price reported is a weighted average price. These BDRs were sold in multiple transactions at prices ranging from $28.42 to $28.93, 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$148.49 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 23, 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 purchased: 3,000 BDRs at $28.4942 per BDR BDRs sold: 544,500 BDRs at a weighted average $28.8821 per BDR Common shares purchased: 30,900 shares at a weighted average $85.6419 per share +2 more

5 metrics

BDRs purchased 3,000 BDRs at $28.4942 per BDR September 23, 2026

BDRs sold 544,500 BDRs at a weighted average $28.8821 per BDR September 23, 2026

Common shares purchased 30,900 shares at a weighted average $85.6419 per share September 23, 2026

Common shares purchased 150,600 shares at a weighted average $86.8274 per share September 23, 2026

BDR conversion ratio 3 BDRs per common share As stated in the transaction footnote

Key Terms

Brazilian Depositary Receipts, weighted average price, pecuniary interest

3 terms

Brazilian Depositary Receipts technical

"Brazilian Depositary Receipts"

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."

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 regulatory

"except to the extent of its pecuniary interest"

FAQ

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

What price ranges applied to AUGO's September 23, 2026 trades?

The 544,500 BDR sale occurred at prices ranging from $28.42 to $28.93 per BDR; the 30,900 common-share purchase ranged from $85.10 to $86.00, inclusive, and the 150,600-share purchase ranged from $86.11 to $86.83, inclusive. The reported BDR sale average was converted from R$148.49 per BDR to U.S. dollars using Banco Central do Brasil's September 23, 2026 conversion rate.

How did the AUGO BDR sale relate to the common-share purchases?

Three BDRs represent one common share. The footnotes state that proceeds from sales of equivalent BDRs were used to purchase common shares, effectively converting the interest from BDRs to common shares.

Did AUGO director Sousa Mauad Bruno report a Rule 10b5-1 plan?

No Rule 10b5-1 plan is reported for these transactions.

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

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 09/24/2026 - 04:35 PM Accepted by SEC EDGAR 09/24/2026 - 04:35 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)
09/23/2026

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	09/23/2026		C		30,900	A	$85.6419(1)	31,941	I	By Kapitalo Investimentos
Common Shares	09/23/2026		C		150,600	A	$86.8274(2)	182,541	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	(3)	09/23/2026		P		3,000		(3)	(3)	Common shares, no par value	1,000	$28.4942	12,003,176	I	By Kapitalo Investimentos
Brazilian Depositary Receipts	(3)	09/23/2026		C			544,500	(3)	(3)	Common shares, no par value	181,500	$28.8821(4)	11,458,676	I	By Kapitalo Investimentos

Explanation of Responses:

1. The price reported is a weighted average price. These shares were bought in multiple transactions at prices ranging from $85.10 to $86.00, 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 (1) 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.

2. The price reported is a weighted average price. These shares were bought in multiple transactions at prices ranging from $86.11 to $86.83, 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 shares bought at each separate price within the ranges set forth in footnote (2) 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.

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

4. The price reported is a weighted average price. These BDRs were sold in multiple transactions at prices ranging from $28.42 to $28.93, 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$148.49 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 23, 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	09/24/2026
	** 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)