Aura Minerals holder plans sale of 156 BDRs

Kapitalo K10 Master fund filed a Rule 144 notice to sell Aura Minerals Brazilian depositary receipts on B3, continuing recent secondary-market BDR sales.

Rhea-AI Filing Summary

Aura Minerals Inc. (AUGO) is the issuer for a proposed resale of its securities by Kapitalo K10 Master Fundo de Investimento Multimercado under Rule 144. The selling holder has filed to potentially sell 156 Brazilian depositary receipts (BDRs), held through Morgan Stanley and listed on B3.

The BDRs are certificates representing common shares of Aura Minerals, and three BDRs represent one common share. The notice also lists multiple prior sales of BDRs in the past three months by the same holder, reflecting ongoing secondary-market activity in Aura Minerals–linked BDRs.

Key Figures

BDRs to be sold: 156 Brazilian depositary receipts BDR sale on August 20, 2026: 12,237 Brazilian depositary receipts for 351,422.42 BDR sale on September 3, 2026: 32,000 Brazilian depositary receipts for 938,354.10 +4 more

7 metrics

BDRs to be sold 156 Brazilian depositary receipts Proposed Rule 144 sale position listed with Morgan Stanley on B3

BDR sale on August 20, 2026 12,237 Brazilian depositary receipts for 351,422.42 Sale during the past three months by Kapitalo K10 Master fund

BDR sale on September 3, 2026 32,000 Brazilian depositary receipts for 938,354.10 Sale during the past three months by Kapitalo K10 Master fund

BDR sale on August 28, 2026 24,749 Brazilian depositary receipts for 687,611.60 Reported prior sale within three months of the notice

BDR-to-share ratio 3 Brazilian depositary receipts per 1 common share Relationship between BDRs and Aura Minerals common shares

Acquisition date of BDRs June 22, 2021 Shares covered by the notice were acquired via open market purchases

Date of notice September 17, 2026 Form 144 notice date signed by Joao Carlos T Pinho

Key Terms

Rule 144, Brazilian depositary receipts, open market purchases, affiliate, +1 more

5 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Brazilian depositary receipts financial

"Brazilian depositary receipts 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.

open market purchases financial

"Shares were acquired in the open market trades"

Open market purchases are buys of a company’s shares (or other securities) made on public exchanges at prevailing market prices rather than through private deals. For investors this matters because when a company buys back its own stock it reduces the number of shares available, which can boost per-share earnings and often signals management’s confidence; it also affects supply, demand and short-term liquidity much like someone quietly buying up items from a crowded marketplace.

affiliate regulatory

"May be deemed affiliate"

B3 market

"83789223 | 09/17/2026 | B3"

b3 is the main stock exchange and market operator in Brazil, running the marketplace where shares, bonds and derivatives are bought, sold and finalized. Think of it as the town square and the cashier combined: it provides the trading floor, sets basic rules, and makes sure trades are completed and records are kept. Investors care because its rules, technology and stability affect liquidity, transaction costs, market access and the reliability of settlements.

FAQ

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

What does the Form 144 filing mean for Aura Minerals Inc. (AUGO)?

The filing reports that Kapitalo K10 Master Fundo de Investimento Multimercado intends to sell Aura Minerals–linked Brazilian depositary receipts (BDRs) under Rule 144. This is a secondary sale by an existing holder and does not involve Aura Minerals issuing new securities.

How many Aura Minerals Brazilian depositary receipts are proposed to be sold?

The notice covers a proposed sale of 156 Brazilian depositary receipts of Aura Minerals Inc. These BDRs are held through Morgan Stanley and are listed for trading on B3 as stated in the filing.

What are Aura Minerals Brazilian depositary receipts and how do they relate to common shares?

The filing states that Brazilian depositary receipts are certificates representing common shares of Aura Minerals Inc. It further specifies that three BDRs represent one common share of the issuer.

What recent sales of Aura Minerals BDRs has the Kapitalo K10 Master fund reported?

Over the past three months, the fund reported multiple BDR sales, including 12,237 BDRs on August 20, 2026 for 351,422.42 and 32,000 BDRs on September 3, 2026 for 938,354.10, along with several other transactions on nearby dates.

On which exchange are Aura Minerals Brazilian depositary receipts traded in this filing?

The Brazilian depositary receipts referenced are traded on B3, as specified in the securities information section of the filing. Morgan Stanley’s Institutional Equity Division is listed as the broker for these BDRs.

When were the Aura Minerals Brazilian depositary receipts originally acquired by the seller?

The BDRs covered by the notice were acquired on June 22, 2021 through open market purchases. The filing notes that these shares were acquired in open market trades and that the form is being filed for a planned Rule 144 sale.

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

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Available on EDGAR 09/17/2026 - 07:41 PM Accepted by SEC EDGAR 09/17/2026 - 07:41 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0002126755
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Aura Minerals Inc.
SEC File Number	001-42744
Address of Issuer	3390 Mary St Suite 116 Coconut Grove FLORIDA 33133
Phone	1-305-239-9332
Name of Person for Whose Account the Securities are To Be Sold	Kapitalo K10 Master Fundo de Investimento Multimercado
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	May be deemed affiliate

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Brazilian depositary receipts	Morgan Stanley | Institutional EquityDivision Avenida Brigadeiro Faria Lima 3600 Faria Lima Square SAO PAULO D5 4538132	156	4834.55	83789223	09/17/2026	B3

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Brazilian depositary receipts	06/22/2021	Open Market Purchases	Shares were acquired in the open market trades			156	06/24/2021	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
KAPITALO K10 MASTER FIM Avenida Brigadeiro Faria Lima 3144 11 floor Sao Paulo D5 01451-000	Brazilian depositary receipts	08/20/2026	12237	351422.42
KAPITALO K10 MASTER FIM Avenida Brigadeiro Faria Lima 3144 11 floor Sao Paulo D5 01451-000	Brazilian depositary receipts	08/24/2026	368	10909.71
KAPITALO K10 MASTER FIM Avenida Brigadeiro Faria Lima 3144 11 floor Sao Paulo D5 01451-000	Brazilian depositary receipts	08/25/2026	4506	134990.14
KAPITALO K10 MASTER FIM Avenida Brigadeiro Faria Lima 3144 11 floor Sao Paulo D5 01451-000	Brazilian depositary receipts	08/26/2026	9118	271509.11
KAPITALO K10 MASTER FIM Avenida Brigadeiro Faria Lima 3144 11 floor Sao Paulo D5 01451-000	Brazilian depositary receipts	08/27/2026	3745	111834.75
KAPITALO K10 MASTER FIM Avenida Brigadeiro Faria Lima 3144 11 floor Sao Paulo D5 01451-000	Brazilian depositary receipts	08/28/2026	24749	687611.60
KAPITALO K10 MASTER FIM Avenida Brigadeiro Faria Lima 3144 11 floor Sao Paulo D5 01451-000	Brazilian depositary receipts	09/02/2026	2970	83478.30
KAPITALO K10 MASTER FIM Avenida Brigadeiro Faria Lima 3144 11 floor Sao Paulo D5 01451-000	Brazilian depositary receipts	09/03/2026	32000	938354.10
KAPITALO K10 MASTER FIM Avenida Brigadeiro Faria Lima 3144 11 floor Sao Paulo D5 01451-000	Brazilian depositary receipts	09/08/2026	449	12958.65
KAPITALO K10 MASTER FIM Avenida Brigadeiro Faria Lima 3144 11 floor Sao Paulo D5 01451-000	Brazilian depositary receipts	09/09/2026	3789	111542.87
KAPITALO K10 MASTER FIM Avenida Brigadeiro Faria Lima 3144 11 floor Sao Paulo D5 01451-000	Brazilian depositary receipts	09/11/2026	14423	421773.91

144: Remarks and Signature

Remarks	Brazilian Depositary Receipts are certificates representing Common Shares of the Issuer. Three BDRs represent one Common Share of the Issuer
Date of Notice	09/17/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	Joao Carlos T Pinho
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)