Aura Minerals director sells 152K shares, BDRs

Rhea-AI Filing Summary

Aura Minerals Inc. (AUGO) director Bruno Sousa Mauad, through investment manager Kapitalo Investimentos, reported multiple indirect trades on September 11, 2026, including purchases and sales of Brazilian Depositary Receipts (BDRs), sales of common shares, a cash-settled total return swap settlement, and related BDR-for-share conversions. Overall activity represented a net reduction in exposure, and no Rule 10b5-1 trading plan is reported. Each reporting person disclaims beneficial ownership beyond any economic interest.

Insider Trade Summary

Exercise and sale activity reported; no spread calculated

Exercise and Sale 7 txns

Insider Sousa Mauad Bruno

Role Director

Bought 14,725 shs ($424K)

Sold 167,582 shs ($8.08M)

Approx. gross sale proceeds $4.81M

Type	Security	Shares	Price	Value
Purchase	Brazilian Depositary Receipts F1	14,725	$28.8228	$424K
Sale	Brazilian Depositary Receipts F1, F4	97,866	$29.2431	$2.86M
Sale	Cash-Settled Total Return Swap F1, F5	14,725	$28.0058	$412K
Conversion	Brazilian Depositary Receipts F1, F7	21,000	$29.0844	$611K
Sale	Common Shares F2	41,089	$87.1993	$3.58M
Sale	Common Shares F3	13,902	$88.0116	$1.22M
Conversion	Common Shares F6	7,000	$86.8703	$608K

Holdings After Transaction: Cash-Settled Total Return Swap — 369,446 contracts (Indirect, By Kapitalo Investimentos); Brazilian Depositary Receipts — 13,191,487 contracts (Indirect, By Kapitalo Investimentos); Common Shares — 77,040 shares (Indirect, By Kapitalo Investimentos)

Footnotes (7)

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 shares were sold 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 sold at each separate price within the ranges set forth in footnote (2) to this Form 4.
3. F3. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $87.86 to $88.31, 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 sold at each separate price within the ranges set forth in footnote (3) to this Form 4.
4. F4. The price reported is a weighted average price. These BDRs were sold in multiple transactions at prices ranging from $29.07 to $29.45, 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$148.90 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 11, 2026.
5. F5. Kapitalo settled their position in a certain cash-settled total return swap agreement pursuant to its terms at a settlement price of $28.01 using the Banco Central do Brasil's conversion rate as of September 11, 2026.
6. F6. 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.
7. F7. The price reported is a weighted average price. These BDRs were sold in multiple transactions at prices ranging from $29.00 to $29.24, 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 (7) to this Form 4. The weighted average price, R$148.09 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 11, 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: 14,725 BDRs BDRs sold: 97,866 BDRs Common shares sold: 41,089 shares +5 more

8 metrics

BDRs purchased 14,725 BDRs Indirectly purchased on September 11, 2026 at about $28.82 per BDR

BDRs sold 97,866 BDRs Indirectly sold on September 11, 2026 at about $29.24 per BDR

Common shares sold 41,089 shares Indirect sale on September 11, 2026 at about $87.20 per share

Additional common shares sold 13,902 shares Indirect sale on September 11, 2026 at about $88.01 per share

BDRs converted to common shares 21,000 BDRs into 7,000 shares Conversion reported on September 11, 2026, three BDRs per common share

Swap notional BDRs settled 14,725 BDRs Cash-settled total return swap tied to 4,908.33 underlying common shares settled at about $28.01 per BDR

Swap position remaining 369,446 BDR-equivalent units Indirect swap exposure remaining after the September 11, 2026 settlement

Net share activity 152,857 more shares/BDRs sold than bought Netted across reported transactions, indicating a net-sell direction

Key Terms

Brazilian Depositary Receipts, cash-settled total return swap, weighted average price, pecuniary interest, +1 more

5 terms

Brazilian Depositary Receipts financial

"BDRs are certificates representing Common Shares of the Issuer."

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.

cash-settled total return swap financial

"Kapitalo settled their position in a certain cash-settled total return swap agreement"

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 financial

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

beneficial ownership financial

"disclaims beneficial ownership in the securities reported"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

FAQ

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

What did Aura Minerals (AUGO) director Bruno Sousa Mauad report on this Form 4?

The director, via Kapitalo Investimentos, reported indirect trades on September 11, 2026 involving BDRs, common shares, a cash-settled total return swap, and related conversions, resulting in an overall net reduction in Aura Minerals exposure.

How many Aura Minerals BDRs were bought and sold in this Form 4 for AUGO?

Kapitalo Investimentos purchased 14,725 BDRs at about $28.82 each and sold 97,866 BDRs at about $29.24 each on September 11, 2026, all indirectly attributed to director Bruno Sousa Mauad.

How many Aura Minerals (AUGO) common shares were sold in this Form 4?

Indirectly through Kapitalo Investimentos, the reporting person sold 41,089 common shares at about $87.20 and 13,902 common shares at about $88.01 on September 11, 2026.

What derivative positions related to Aura Minerals (AUGO) are disclosed?

The filing reports BDRs and a cash-settled total return swap. A swap on 14,725 notional BDRs tied to 4,908.33 underlying common shares was settled at about $28.01 per BDR, leaving 369,446 BDR-equivalent units under swap outstanding.

Were any Aura Minerals BDRs converted into common shares in this Form 4?

Yes. The report shows a conversion of 21,000 BDRs into 7,000 common shares, reflecting that three BDRs represent one common share, effectively shifting exposure from BDRs to common shares.

Were these Aura Minerals (AUGO) trades under a Rule 10b5-1 plan?

No. The filing indicates that no Rule 10b5-1 trading plan is reported for these transactions on September 11, 2026.

Does the director claim full beneficial ownership of the Aura Minerals securities reported?

No. The reporting persons state they disclaim beneficial ownership of the securities except to the extent of any pecuniary interest, and the filing says it should not be viewed as an admission of beneficial ownership.

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

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Available on EDGAR 09/14/2026 - 05:05 PM Accepted by SEC EDGAR 09/14/2026 - 05:03 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)
09/11/2026

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	09/11/2026		S		41,089	D	$87.1993(2)	83,942	I	By Kapitalo Investimentos
Common Shares	09/11/2026		S		13,902	D	$88.0116(3)	70,040	I	By Kapitalo Investimentos
Common Shares	09/11/2026		C		7,000	A	$86.8703(6)	77,040	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)	09/11/2026		P		14,725		(1)	(1)	Common shares, no par value	4,908.33	$28.8228	13,310,353	I	By Kapitalo Investimentos
Brazilian Depositary Receipts	(1)	09/11/2026		S			97,866	(1)	(1)	Common shares, no par value	32,622	$29.2431(4)	13,212,487	I	By Kapitalo Investimentos
Cash-Settled Total Return Swap	(1)	09/11/2026		S/K			14,725	(1)	(1)	Common shares, no par value	4,908.33	$28.0058(5)	369,446	I	By Kapitalo Investimentos
Brazilian Depositary Receipts	(1)	09/11/2026		C			21,000	(1)	(1)	Common shares, no par value	7,000	$29.0844(7)	13,191,487	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 shares were sold 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 sold at each separate price within the ranges set forth in footnote (2) to this Form 4.

3. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $87.86 to $88.31, 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 sold at each separate price within the ranges set forth in footnote (3) to this Form 4.

4. The price reported is a weighted average price. These BDRs were sold in multiple transactions at prices ranging from $29.07 to $29.45, 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$148.90 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 11, 2026.

5. Kapitalo settled their position in a certain cash-settled total return swap agreement pursuant to its terms at a settlement price of $28.01 using the Banco Central do Brasil's conversion rate as of September 11, 2026.

6. 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.

7. The price reported is a weighted average price. These BDRs were sold in multiple transactions at prices ranging from $29.00 to $29.24, 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 (7) to this Form 4. The weighted average price, R$148.09 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 11, 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	09/14/2026
	** 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)