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  4. [Form 4] Aura Minerals Inc. Insider Trading Activity

Aura Minerals (AUGO) director logs mixed share and BDR trades

Filing Impact
(Very High)
Filing Sentiment
(Very Negative)
Form Type
4

Rhea-AI Filing Summary

Aura Minerals Inc. (AUGO) director Bruno Sousa Mauad reported indirect transactions through Kapitalo Investimentos involving Brazilian Depository Receipts (BDRs) and common shares. On 2026-08-24, 270,000 BDRs representing 90,000 common shares were exchanged into common shares and 4,587 BDRs (1,529 underlying common shares) were sold. On the same date, 120,757 common shares were sold and 90,000 common shares were acquired via the BDR exchange, all held indirectly. Each reporting person disclaims beneficial ownership beyond any pecuniary interest.

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Insider Sousa Mauad Bruno
Role Director
Sold 125,344 shs ($10.82M)
Approx. gross sale proceeds $10.68M
Type Security Shares Price Value
Conversion Brazilian Depository Receipts F2, F5, F4 270,000 $29.03 $7.84M
Sale Brazilian Depository Receipts F2, F3 4,587 $29.65 $136K
Sale Common Shares 120,757 $88.45 $10.68M
Conversion Common Shares F1 90,000 $87.18 $7.85M
Holdings After Transaction: Brazilian Depository Receipts — 14,098,199 shares (Indirect, By Kapitalo Investimentos); Common Shares — 165,356 shares (Indirect, By Kapitalo Investimentos)
Footnotes (5)
  1. F1. 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. F2. BDRs are certificates representing Common Shares of the Issuer. Three BDRs represent one Common Share of the Issuer.
  3. F3. The price reported is a weighted average price. These BDRs were sold in multiple transactions at prices ranging from $29.61 to $29.68, 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$152.71 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 24, 2026.
  4. F4. The price reported is a weighted average price. These BDRs were sold in multiple transactions, all at the price of $ 29.03. 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$149.54 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 24, 2026.
  5. F5. These BDRs were disposed through the exchange of BDRs into Common Shares of the Issuer.
BDRs converted 270,000 Brazilian Depository Receipts Disposed through exchange into common shares on 2026-08-24
Common shares received from BDR exchange 90,000 common shares Three BDRs represent one common share; exchange on 2026-08-24
BDRs sold 4,587 Brazilian Depository Receipts Sold on 2026-08-24 at weighted average price
Weighted average BDR sale price $29.65 per BDR Multiple transactions between $29.61 and $29.68 on 2026-08-24
Common shares sold 120,757 common shares Indirect sale on 2026-08-24
Common share sale price $88.45 per common share Price reported for 120,757 common shares sold
Common share conversion price $87.18 per common share Price reported for 90,000 common shares acquired via BDR exchange
BDR-to-common share ratio 3 BDRs per 1 common share Footnote states three BDRs represent one common share
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"
Section 16 regulatory
"beneficial owner of such securities for purposes of Section 16 or"
Section 16 is a U.S. securities law rule that governs the trading and disclosure obligations of company insiders — typically officers, directors and large shareholders — to promote transparency and deter unfair profit-taking. It requires insiders to publicly report their stock trades and allows companies or the issuer to reclaim quick, short-term profits from certain insider trades, like a scoreboard and a refund policy that help investors see and limit possible insider advantage.
Rule 10b5-1 regulatory
"aff_10b5_one indicates the Rule 10b5-1 checkbox status"
Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

FAQ

What insider transactions did Aura Minerals Inc. (AUGO) report on 2026-08-24?
On 2026-08-24, director Bruno Sousa Mauad reported indirect transactions via Kapitalo Investimentos: a conversion of 270,000 BDRs into 90,000 common shares, the sale of 4,587 BDRs, the sale of 120,757 common shares, and the acquisition of 90,000 common shares from the BDR exchange.

How many Aura Minerals (AUGO) Brazilian Depository Receipts were converted and sold?
Kapitalo Investimentos converted 270,000 Brazilian Depository Receipts (BDRs) into 90,000 common shares and sold 4,587 BDRs on 2026-08-24. Each BDR represents one-third of a common share, so 4,587 BDRs correspond to 1,529 underlying common shares.

What common share transactions were reported for Aura Minerals (AUGO)?
On 2026-08-24, 90,000 common shares of Aura Minerals were acquired through the exchange of BDRs, and 120,757 common shares were sold, all held indirectly by Kapitalo Investimentos. The filing does not show post-transaction share balances for these positions.

What prices were involved in the Aura Minerals (AUGO) BDR transactions?
The 270,000 BDRs disposed in exchange for common shares carried a reported price of $29.03 per BDR. The 4,587 BDRs sold carried a weighted average price of $29.65 per BDR, based on trades between $29.61 and $29.68 and converted from R$152.71 per BDR.

At what price were Aura Minerals (AUGO) common shares sold and acquired?
The filing reports 120,757 common shares sold at $88.45 per share on 2026-08-24. The 90,000 common shares received from exchanging BDRs are shown with a transaction price of $87.18 per share tied to that conversion event.

Were the Aura Minerals (AUGO) insider transactions under a Rule 10b5-1 trading plan?
The Rule 10b5-1 checkbox for this Form 4 is not checked, and the footnotes do not state that these trades occurred under a Rule 10b5-1 trading plan. The reporting persons also disclaim beneficial ownership beyond any pecuniary interest.

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Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED 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)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/24/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Shares08/24/2026S120,757D$88.4575,356IBy Kapitalo Investimentos
Common Shares08/24/2026C90,000(1)A$87.18165,356IBy 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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Brazilian Depository Receipts(2)08/24/2026C270,000(5) (2) (2)Common shares, no par value90,000$29.03(4)14,102,786IBy Kapitalo Investimentos
Brazilian Depository Receipts(2)08/24/2026S4,587 (2) (2)Common shares, no par value1,529$29.65(3)14,098,199IBy Kapitalo Investimentos
Explanation of Responses:
1. 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 $29.61 to $29.68, 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$152.71 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 24, 2026.
4. The price reported is a weighted average price. These BDRs were sold in multiple transactions, all at the price of $ 29.03. 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$149.54 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 24, 2026.
5. These BDRs were disposed through the exchange of BDRs into Common Shares of the Issuer.
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 Mauad08/26/2026
** Signature of Reporting PersonDate
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