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Aura Minerals director reports 127K net units sold

(Very High)
(Very Negative)
Form Type
4

Rhea-AI Filing Summary

Aura Minerals Inc. (AUGO) director Bruno Sousa Mauad, through Kapitalo Investimentos, reported a series of indirect trades in August 2026 involving common shares, Brazilian Depositary Receipts (BDRs), cash-settled total return swaps, and listed options on Aura common shares.

The activity included both purchases and sales and derivative conversions, with an aggregate net of 127,681 more units sold than bought across all reported transactions. Several BDR and swap positions were settled or restructured, and certain put and call options expiring October 16, 2026 were voluntarily terminated unexercised. No Rule 10b5-1 trading plan is indicated.

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Insider Sousa Mauad Bruno
Role Director
Bought 478,436 shs
Sold 606,117 shs
Approx. gross sale proceeds $10.35M
Type Security Shares Price Value
Sale Brazilian Depositary Receipts F1 1 $26.7369 $26.74
Sale Cash-Settled Total Return Swap F1, F3 70,153 -- --
Purchase Cash-Settled Total Return Swap F1, F4 70,153 -- --
Sale Cash-Settled Total Return Swap F1, F3 377,987 -- --
Sale Cash-Settled Total Return Swap F1, F3 27,286 -- --
Purchase Cash-Settled Total Return Swap F1, F5 405,273 -- --
Conversion Brazilian Depositary Receipts F1, F9 21,675 $26.7386 $580K
Purchase Call option (right to buy) F11 1,500 $4.53 $7K
Sale Put option (obligation to buy) F10 1,500 $10.33 $15K
Purchase Common Shares 10 $79.89 $798.90
Sale Common Shares 127,500 $81.20 $10.35M
Conversion Common Shares F6 3,225 $80.4232 $259K
Conversion Common Shares F7 3,900 $81.5538 $318K
Conversion Common Shares F8 100 $82.05 $8K
Sale Call option (obligation to sell) 1,500 $7.65 $11K
Purchase Put option (right to sell) 1,500 $7.55 $11K
Sale Cash-Settled Total Return Swap F1, F2 125 -- --
Sale Cash-Settled Total Return Swap F1, F2 65 -- --
Holdings After Transaction: Cash-Settled Total Return Swap — 475,426 contracts (Indirect, By Kapitalo Investimentos); Brazilian Depositary Receipts — 13,597,693 contracts (Indirect, By Kapitalo Investimentos); Call option (obligation to sell) — 1,500 contracts (Indirect, By Kapitalo Investimentos); Put option (right to sell) — 1,500 contracts (Indirect, By Kapitalo Investimentos); Call option (right to buy) — 0 contracts (Indirect, By Kapitalo Investimentos); Put option (obligation to buy) — 0 contracts (Indirect, By Kapitalo Investimentos); Common Shares — 170,591 shares (Indirect, By Kapitalo Investimentos)
Footnotes (11)
  1. F1. BDRs are certificates representing Common Shares of the Issuer. Three BDRs represent one Common Share of the Issuer.
  2. F2. Kapitalo settled their position in a certain cash-settled total return swap agreement pursuant to its terms at a settlement price of $17.74 using the Banco Central do Brasil's conversion rate as of August 18, 2026.
  3. F3. Kapitalo settled their position in a certain cash-settled total return swap agreement pursuant to its terms at a settlement price of $17.82 using the Banco Central do Brasil's conversion rate as of August 31, 2026.
  4. F4. Kapitalo Investimentos entered into a cash-settled total return swap pursuant to which it will pay any increase in, and receive any decrease in, the price of 70,153 Brazilian Depository Receipts, from an initial price per Brazilian Depository Receipt of BRL142.60. The final valuation date (subject to early termination by the parties) is September 30, 2026.
  5. F5. Kapitalo Investimentos entered into a cash-settled total return swap pursuant to which it will pay any increase in, and receive any decrease in, the price of 405,273 Brazilian Depository Receipts, from an initial price per Brazilian Depository Receipt of BRL142.60. The final valuation date (subject to early termination by the parties) is September 30, 2026.
  6. F6. The price reported is a weighted average price. These shares were bought in multiple transactions at prices ranging from $79.89 to $80.67, 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 (6) 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.
  7. F7. The price reported is a weighted average price. These shares were bought in multiple transactions at prices ranging from $81.10 to $82.00, 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 (7) 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.
  8. F8. 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.
  9. F9. The price reported is a weighted average price. These BDRs were sold in multiple transactions at prices ranging from $26.50 to $27.16, 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 (9) to this Form 4. The weighted average price, R$138.55 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 31, 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.
  10. F10. The put option was voluntarily terminated unexercised on August 31, 2026.
  11. F11. The call option was voluntarily terminated unexercised on August 31, 2026.
Aggregate units bought 478,436 units Total units bought across all reported transactions in August 2026
Aggregate units sold 606,117 units Total units sold across all reported transactions in August 2026
Net units sold 127,681 units Net of units sold over units bought across all reported trades
Common shares sold 127,500 shares at $81.20 Indirect sale of Aura Minerals common shares on August 31, 2026
Common shares purchased 10 shares at $79.89 Indirect purchase of Aura Minerals common shares on August 31, 2026
BDR conversion ratio 3 BDRs per 1 common share Relationship between Aura Minerals BDRs and common shares
BDR weighted average sale range $26.50–$27.16 per BDR Prices for BDR sales used to fund common share purchases
Swap initial BDR reference 405,273 BDRs at BRL142.60 Size and initial price of one cash-settled total return swap position
Cash-Settled Total Return Swap financial
"A Cash-Settled Total Return Swap referencing Aura common shares was reported"
Brazilian Depositary Receipts financial
"BDRs are Brazilian Depositary Receipts where three BDRs represent one share"
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 trades in a range"
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
"Each Reporting Person disclaims beneficial ownership except to the extent of pecuniary interest"
cash-settled total return swap agreement financial
"Kapitalo settled their position in a cash-settled total return swap agreement"

FAQ

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

He reported indirect trading via Kapitalo Investimentos in common shares, Brazilian Depositary Receipts, cash-settled total return swaps, and listed options on Aura common shares during August 2026, including purchases, sales, and derivative conversions.

What was the net trading result reported for Aura Minerals (AUGO) securities?

Across all reported instruments, the filing shows 478,436 units bought and 606,117 units sold, for a net of 127,681 more units sold than bought, based on the transaction summary data.

How many Aura Minerals (AUGO) common shares were directly traded?

Indirectly through Kapitalo Investimentos, the filing shows a purchase of 10 common shares at $79.89 per share and a sale of 127,500 common shares at $81.20 per share, plus additional common shares acquired through derivative conversions.

How were Brazilian Depositary Receipts for Aura Minerals (AUGO) used in these transactions?

BDRs, where three BDRs represent one common share, were sold at a weighted average of about $26.50–$27.16 per BDR, with proceeds used to buy an equivalent number of common shares, effectively converting BDR interests into common share interests.

Were any cash-settled total return swaps on Aura Minerals (AUGO) reported?

Yes. The filing reports cash-settled total return swaps referencing Aura common shares, including positions of 70,153 and 405,273 BDRs, with initial prices of BRL142.60 per BDR and final valuation dates on September 30, 2026, subject to early termination.

What happened to the Aura Minerals (AUGO) options positions in this Form 4?

Kapitalo Investimentos held call and put option positions on 150,000 underlying Aura common shares (1,500 contracts each, strikes $95 and $85, expiring October 16, 2026). Footnotes state both the put and the call were voluntarily terminated unexercised on August 31, 2026.

Was a Rule 10b5-1 trading plan used for these Aura Minerals (AUGO) trades?

No. The Rule 10b5-1 plan checkbox is not marked, and the footnotes do not state that any of these transactions were executed under a Rule 10b5-1 or similar pre-arranged trading plan.

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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)
08/18/2026
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 Shares08/31/2026P10A$79.89290,866IBy Kapitalo Investimentos
Common Shares08/31/2026S127,500D$81.2163,366IBy Kapitalo Investimentos
Common Shares08/31/2026C3,225A$80.4232(6)166,591IBy Kapitalo Investimentos
Common Shares08/31/2026C3,900A$81.5538(7)170,491IBy Kapitalo Investimentos
Common Shares08/31/2026C100A$82.05(8)170,591IBy 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 Depositary Receipts(1)08/31/2026S1 (1) (1)Common shares, no par value0.33$26.736913,619,368IBy Kapitalo Investimentos
Cash-Settled Total Return Swap(1)08/18/2026S/K125 (1) (1)Common shares, no par value41.67(2)70,153IBy Kapitalo Investimentos
Cash-Settled Total Return Swap(1)08/18/2026S/K65 (1) (1)Common shares, no par value21.67(2)405,273IBy Kapitalo Investimentos
Cash-Settled Total Return Swap(1)08/31/2026S/K70,153 (1) (1)Common shares, no par value23,384.33(3)0IBy Kapitalo Investimentos
Cash-Settled Total Return Swap(1)08/31/2026P/K70,153 (1) (1)Common shares, no par value23,384.33(4)70,153IBy Kapitalo Investimentos
Cash-Settled Total Return Swap(1)08/31/2026S/K377,987 (1) (1)Common shares, no par value125,995.67(3)27,286IBy Kapitalo Investimentos
Cash-Settled Total Return Swap(1)08/31/2026S/K27,286 (1) (1)Common shares, no par value9,095.33(3)0IBy Kapitalo Investimentos
Cash-Settled Total Return Swap(1)08/31/2026P/K405,273 (1) (1)Common shares, no par value135,091(5)405,273IBy Kapitalo Investimentos
Brazilian Depositary Receipts(1)08/31/2026C21,675 (1) (1)Common shares, no par value7,225$26.7386(9)13,597,693IBy Kapitalo Investimentos
Call option (obligation to sell)$9508/28/2026S1,50010/16/202610/16/2026Common shares, no par value150,000$7.651,500IBy Kapitalo Investimentos
Put option (right to sell)$8508/28/2026P1,50010/16/202610/16/2026Common shares, no par value150,000$7.551,500IBy Kapitalo Investimentos
Call option (right to buy)$9508/31/2026P1,50010/16/202610/16/2026Common shares, no par value150,000$4.53(11)0IBy Kapitalo Investimentos
Put option (obligation to buy)$8508/31/2026S1,50010/16/202610/16/2026Common shares, no par value150,000$10.33(10)0IBy 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. Kapitalo settled their position in a certain cash-settled total return swap agreement pursuant to its terms at a settlement price of $17.74 using the Banco Central do Brasil's conversion rate as of August 18, 2026.
3. Kapitalo settled their position in a certain cash-settled total return swap agreement pursuant to its terms at a settlement price of $17.82 using the Banco Central do Brasil's conversion rate as of August 31, 2026.
4. Kapitalo Investimentos entered into a cash-settled total return swap pursuant to which it will pay any increase in, and receive any decrease in, the price of 70,153 Brazilian Depository Receipts, from an initial price per Brazilian Depository Receipt of BRL142.60. The final valuation date (subject to early termination by the parties) is September 30, 2026.
5. Kapitalo Investimentos entered into a cash-settled total return swap pursuant to which it will pay any increase in, and receive any decrease in, the price of 405,273 Brazilian Depository Receipts, from an initial price per Brazilian Depository Receipt of BRL142.60. The final valuation date (subject to early termination by the parties) is September 30, 2026.
6. The price reported is a weighted average price. These shares were bought in multiple transactions at prices ranging from $79.89 to $80.67, 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 (6) 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.
7. The price reported is a weighted average price. These shares were bought in multiple transactions at prices ranging from $81.10 to $82.00, 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 (7) 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.
8. 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.
9. The price reported is a weighted average price. These BDRs were sold in multiple transactions at prices ranging from $26.50 to $27.16, 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 (9) to this Form 4. The weighted average price, R$138.55 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 31, 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.
10. The put option was voluntarily terminated unexercised on August 31, 2026.
11. The call option was voluntarily terminated unexercised on August 31, 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 Mauad09/02/2026
** 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)