6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of October 2025

Commission File Number: 001-42744

Aura Minerals Inc. (Translation of registrant's name into English)

3390 Mary St,Suite 116, Coconut Grove,Florida, 33133, United States+1 (305) 239 9332 (Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F. Form 20-F [ X ]      Form 40-F [   ]

EXHIBIT INDEX

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

EdgarFiling

EXHIBIT 99.1

Aura Announces Preliminary Q3 2025 and 9M 2025 Production Results,Reaching Record Highs

ROAD TOWN, British Virgin Islands, Oct. 10, 2025 (GLOBE NEWSWIRE) -- Aura Minerals Inc. (NASDAQ: AUGO and B3:AURA33) (“Aura” or the “Company”) is pleased to announce Q3 2025 preliminary production results from the Company’s operating mines: Aranzazu, Apoena, Minosa, Almas and Borborema. Total production in Q3 2025, at current prices reached 74,227 gold equivalent ounces (“GEO”)^1^^,^^2^, 16% higher than Q2 2025 and also 9% higher when compared to Q3 2024. At constant prices, Aura’s quarterly production was a record high, increasing by 17% compared to Q2 2025 and 15% above the Q3 2024. In the 9M 2025, the total production reached 198,347 GEO at current prices. At 2025 Production Guidance Prices^3^, the 9M 2025 production was 203,592 GEO, 3% above 9M 2024, and on track to achieve the 2025 guidance.

Rodrigo Barbosa, CEO and President commented: “We are pleased to announce a record high quarter of strong performance across our operations, achieving 74,227 gold equivalent ounces (GEO) in Q3, contributing to 265,000 GEO over the last twelve months. For the first nine months of 2025, our production of 203,592 GEO at guidance prices positions us firmly within our 2025 guidance of 266,000–300,000 GEO. A key milestone was the start of commercial production at Borborema, which delivered over 10,000 ounces with a recovery rate above 92%, setting the stage for a steady ramp-up. Delivered on time and on budget, Borborema, as the model of Almas, embodies our Aura 360 commitment to disciplined execution, operational excellence, and sustainable value creation for all stakeholders.”

Q3 2025 | 9M 2025 Highlights:

• At Aranzazu, production reached 21,534 GEO, representing a 3% decrease compared to the previous quarter, resulting mainly from metal prices since higher gold prices negatively impact the conversion to GEO. When compared to Q3 2024, production decreased by 12% due to the sharp increase in gold prices between the periods which also impacted GEO conversion. At constant prices^4^, Aranzazu production was in line when compared to Q2 2025 and 4% higher when compared to the Q3 2024, also due to higher grades of copper and silver. In the 9M 2025, total production decreased by 16% compared to the previous quarter, reaching 64,271, in line with the negative impact of the metals price conversion. At constant prices, Aranzazu produced 62,046 GEO, 4% higher than the same period of the previous year, mainly due to higher grades and commercial molybdenum production.
• At Minosa, production totaled 18,138 GEO, another stable quarter and in line when compared to the previous quarter, resulting from higher grades processed during the quarter and higher recovery rate, which achieved 68%. When compared to the same quarter last year, production decreased by 13%, due to lower stacking in Q3 2025 compared to Q3 2024 due to higher rainfall in Q3 2025. In the 9M 2025, production decreased 9% mainly due to lower ore feed to the plant, reflecting mine sequencing and weather-related constraints, and was consistent with Aura’s expectations.
• At Almas, production reached 15,088 GEO, 17% higher than Q2 2025 (12,917 GEO), driven by higher ore processed volumes and improved mine performance, reflecting the results of the plant expansion. Production was in line when compared to Q3 2024, although the higher ore processed, due to the grades decrease due to mine sequencing. In the 9M 2025, production increased 10%, driven by a higher volume of ore processed, supported by the implementation of larger equipment, which expanded the mine’s operational capacity and enhanced process efficiency.
• At Apoena, production was 9,248 GEO, 13% higher than Q2 2025, driven by higher recovery rates of 95%. Compared with Q3 2024, production increased 15%, primarily because of higher recovery rates and higher processed tonnage feed. In the 9M 2025, production decreased 12% when compared to the same period of the last year, attributable to higher grades in 9M 2024, especially Q1 2024, due to the higher grade of Ernesto pit. So far, 2025’s performance has been above Company expectations.
• At Borborema, production totaled 10,219 GEO, reflecting progress along the ramp-up curve, reaching commercial production in September as planned by the Company.

Production Results

Preliminary GEO^5^^6^ production volume for the three months ended September 30, 2025, when compared to the previous quarter and the same period of the previous year is presented below by operating mine:

The table below shows production by each type of metal at Aranzazu.

The chart below displays the consolidated quarterly GEO production measured at current and constant prices since Q1 2023, as well as the last twelve months at the end of each reporting period:

Qualified Person

The scientific and technical information contained in this press release has been reviewed and approved by Farshid Ghazanfari, P.Geo., Geology and Mineral Resources Manager, an employee of Aura and a “qualified person” within the meaning of NI 43-101 and SK-1300.

About Aura 360° Mining

Aura is focused on mining in complete terms – thinking holistically about how its business impacts and benefits every one of our stakeholders: our company, our shareholders, our employees, and the countries and communities we serve. We call this 360° Mining.

Aura is a company focused on the development and operation of gold and base metal projects in the Americas. The Company's five operating assets include the Minosa gold mine in Honduras; the Almas, Apoena, and Borborema gold mines in Brazil; and the Aranzazu copper, gold, and silver mine in Mexico. Additionally, the Company owns Era Dorada, a gold project in Guatemala; Tolda Fria, a gold project in Colombia; and three projects in Brazil: Matupá, which is under development; São Francisco, which is in care and maintenance; and the Carajás copper project in the Carajás region, in the exploration phase.

The information contained in this press release is preliminary in nature and is provided for informational purposes only. It is based on current estimates, assumptions, and expectations, which remain subject to ongoing review, verification, and possible revision. Final Q3 2025 Production Results may differ from those set forth herein, and no assurance is given as to the accuracy or completeness of the information at this stage. Readers are cautioned not to place undue reliance on this preliminary results.

Forward-Looking Information

This press release contains “forward-looking information” and “forward-looking statements”, as defined in applicable securities laws (collectively, “forward-looking statements”) which may include, but is not limited to, statements with respect to the activities, events or developments that the Company expects or anticipates will or may occur in the future. Often, but not always, forward-looking statements can be identified by the use of words and phrases such as “plans,” “expects,” “is expected,” “budget,” “scheduled,” “estimates,” “forecasts,” “intends,” “anticipates,” or “believes” or variations (including negative variations) of such words and phrases, or state that certain actions, events or results “may,” “could,” “would,” “might” or “will” be taken, occur or be achieved.

Known and unknown risks, uncertainties and other factors, many of which are beyond the Company’s ability to predict or control, could cause actual results to differ materially from those contained in the forward-looking statements. Specific reference is made to the most recent Annual Information Form on file with certain Canadian provincial securities regulatory authorities for a discussion of some of the factors underlying forward-looking statements, which include, without limitation, volatility in the prices of gold, copper and certain other commodities, changes in debt and equity markets, the uncertainties involved in interpreting geological data, increases in costs, environmental compliance and changes in environmental legislation and regulation, interest rate and exchange rate fluctuations, general economic conditions and other risks involved in the mineral exploration and development industry. Readers are cautioned that the foregoing list of factors is not exhaustive of the factors that may affect the forward-looking statements.

All forward-looking statements herein are qualified by this cautionary statement. Accordingly, readers should not place undue reliance on forward-looking statements. The Company undertakes no obligation to update publicly or otherwise revise any forward-looking statements whether as a result of new information or future events or otherwise, except as may be required by law. If the Company does update one or more forward-looking statements, no inference should be drawn that it will make additional updates with respect to those or other forward-looking statements.

^1 Gold equivalent ounces, or GEO, is calculated by converting the production of silver, copper and molybdenuminto gold using a ratio of the prices of these metals to that of gold. The prices used to determine the GEO are based on the weightedaverage price of silver and copper realized from sales at the Aranzazu Mine during the relevant period.^ ^2 Applies the metalsale prices in Aranzazu realized during Q3 2025: Copper price = US$4.45/lb; Gold Price = US$3,477/oz; Silver Price = US$40.03/oz and MolybdenumPrice = US$25.02/oz.^ ^3 Applies the metal sale prices of the 2025 Guidance in Aranzazu: Copper price = US$4.30/lb; GoldPrice = US$2,636/oz.^ ^4 Constant Price" is a method of converting our copper, silver and molybdenum production or salesvolume into GEO based on fixed metal prices. This approach eliminates the impact of metal price fluctuations, when comparing productionor sales figures across different periods. Using constant prices allows for a consistent and meaningful comparison of gold equivalentproduction or sales over time. It ensures that differences in GEO production or sales between two periods reflect changes in actual physicalmetal production or metal sales and not changes due to fluctuations in commodity prices among the periods. GEO at constant price for previousperiod, to be compared to GEO for current period, is copper production or sales volume previous period multiplied by copper prices currentperiod plus silver production or sales volume for previous period multiplied by silver prices from current period plus molybdenum productionor sales volume for previous period multiplied by molybdenum prices from current period divided by gold price for current period.^^5The total may not add due to rounding.^ ^6 Applies the metal sale prices in Aranzazu realized at each relevant quarter.^

A photo accompanying this announcement is available at https://www.globenewswire.com/NewsRoom/AttachmentNg/48d857f3-6e9b-4667-b2db-6dd622fd79f8

For more information, please contact:

Investor Relations ri@auraminerals.com www.auraminerals.com