Notice of Proposed Sale · 144

Aura Minerals Inc.

AUGONASDAQEQUITYCurrent

Notice of Proposed Sale

Filed Sep 29, 2026Accepted Sep 29, 2026, 6:46 PM EDTFiling CIK 2126752Accession 0002126752-26-000025

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Structured filing — 144

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Notice of proposed sale. The proposed amounts below do not establish that a sale occurred.

Proposed-sale notice

Issuer: Aura Minerals Inc.
Issuer CIK: 0001468642
SEC file number: 001-42744
Phone: 1-305-239-9332
Person for whose account securities are to be sold: Kapitalo Master III Fundo de Investimento Multimercado
Relationships to issuer: May be deemed affiliate
Street: 3390 Mary St
Street (continued): Suite 116
City: Coconut Grove
State / country code: FL
Postal code: 33133

Securities proposed for sale

Securities proposed for sale · 1 reported row
Security	Proposed units	Aggregate market value	Units outstanding	Approximate sale date	Exchange	Broker / market maker
Brazilian depositary receipts	6,739	179,036.20	83,789,223	09/29/2026	B3	BTG PACTUAL CORRETORA DE TITULOS E VALORES MOBILIARIOS S.A.

Broker / market maker — proposed row 1, entry 1

Name: BTG PACTUAL CORRETORA DE TITULOS E VALORES MOBILIARIOS S.A.
Street: AV BRIGADEIRO FARIA LIMA 3477
Street (continued): Edificio Patio Victor Malzoni
City: SAO PAULO
State / country code: D5
Postal code: 4538133

Acquisition of securities to be sold

Acquisition of securities to be sold · 1 reported row
Security	Acquired	Nature of acquisition	Acquired from	Amount acquired	Gift transaction	Payment date	Nature of payment
Brazilian depositary receipts	06/12/2025	Open Market Purchases	Shares were acquired in the open market trades	6,739	N	06/16/2025	Cash

Sales reported in the preceding three months

Sales reported in the preceding three months · 19 reported rows
Seller	Security	Sale date	Amount sold	Gross proceeds
KAPITALO MASTER III FIM IE	Brazilian depositary receipts	08/19/2026	25,703	719,258.00
KAPITALO MASTER III FIM IE	Brazilian depositary receipts	08/20/2026	61,433	1,764,234.17
KAPITALO MASTER III FIM IE	Brazilian depositary receipts	08/21/2026	22,386	661,761.69
KAPITALO MASTER III FIM IE	Brazilian depositary receipts	08/24/2026	113	3,349.99
KAPITALO MASTER III FIM IE	Brazilian depositary receipts	08/25/2026	31,106	931,869.36
KAPITALO MASTER III FIM IE	Brazilian depositary receipts	08/26/2026	43,133	1,284,383.05
KAPITALO MASTER III FIM IE	Brazilian depositary receipts	08/27/2026	9,387	280,318.51
KAPITALO MASTER III FIM IE	Brazilian depositary receipts	08/28/2026	67,783	1,883,242.84
KAPITALO MASTER III FIM IE	Brazilian depositary receipts	08/31/2026	1	26.74
KAPITALO MASTER III FIM IE	Brazilian depositary receipts	09/01/2026	2	53.65
KAPITALO MASTER III FIM IE	Brazilian depositary receipts	09/02/2026	21,990	618,076.73
KAPITALO MASTER III FIM IE	Brazilian depositary receipts	09/03/2026	100,083	2,934,790.42
KAPITALO MASTER III FIM IE	Brazilian depositary receipts	09/08/2026	1,354	39,077.99
KAPITALO MASTER III FIM IE	Brazilian depositary receipts	09/09/2026	5,635	165,886.53
KAPITALO MASTER III FIM IE	Brazilian depositary receipts	09/11/2026	37,560	1,098,372.59
KAPITALO MASTER III FIM IE	Brazilian depositary receipts	09/16/2026	17	490.33
KAPITALO MASTER III FIM IE	Brazilian depositary receipts	09/17/2026	386	11,959.11
KAPITALO MASTER III FIM IE	Brazilian depositary receipts	09/21/2026	22,369	662,582.63
KAPITALO MASTER III FIM IE	Brazilian depositary receipts	09/22/2026	253,428	7,664,405.18

Seller — prior-sale row 1, entry 1

Name: KAPITALO MASTER III FIM IE
Street: Avenida Brigadeiro Faria Lima 3144
Street (continued): 11 floor
City: Sao Paulo
State / country code: D5
Postal code: 01451-000

Seller — prior-sale row 2, entry 1

Name: KAPITALO MASTER III FIM IE
Street: Avenida Brigadeiro Faria Lima 3144
Street (continued): 11 floor
City: Sao Paulo
State / country code: D5
Postal code: 01451-000

Seller — prior-sale row 3, entry 1

Name: KAPITALO MASTER III FIM IE
Street: Avenida Brigadeiro Faria Lima 3144
Street (continued): 11 floor
City: Sao Paulo
State / country code: D5
Postal code: 01451-000

Seller — prior-sale row 4, entry 1

Name: KAPITALO MASTER III FIM IE
Street: Avenida Brigadeiro Faria Lima 3144
Street (continued): 11 floor
City: Sao Paulo
State / country code: D5
Postal code: 01451-000

Seller — prior-sale row 5, entry 1

Name: KAPITALO MASTER III FIM IE
Street: Avenida Brigadeiro Faria Lima 3144
Street (continued): 11 floor
City: Sao Paulo
State / country code: D5
Postal code: 01451-000

Seller — prior-sale row 6, entry 1

Name: KAPITALO MASTER III FIM IE
Street: Avenida Brigadeiro Faria Lima 3144
Street (continued): 11 floor
City: Sao Paulo
State / country code: D5
Postal code: 01451-000

Seller — prior-sale row 7, entry 1

Name: KAPITALO MASTER III FIM IE
Street: Avenida Brigadeiro Faria Lima 3144
Street (continued): 11 floor
City: Sao Paulo
State / country code: D5
Postal code: 01451-000

Seller — prior-sale row 8, entry 1

Name: KAPITALO MASTER III FIM IE
Street: Avenida Brigadeiro Faria Lima 3144
Street (continued): 11 floor
City: Sao Paulo
State / country code: D5
Postal code: 01451-000

Seller — prior-sale row 9, entry 1

Name: KAPITALO MASTER III FIM IE
Street: Avenida Brigadeiro Faria Lima 3144
Street (continued): 11 floor
City: Sao Paulo
State / country code: D5
Postal code: 01451-000

Seller — prior-sale row 10, entry 1

Name: KAPITALO MASTER III FIM IE
Street: Avenida Brigadeiro Faria Lima 3144
Street (continued): 11 floor
City: Sao Paulo
State / country code: D5
Postal code: 01451-000

Seller — prior-sale row 11, entry 1

Name: KAPITALO MASTER III FIM IE
Street: Avenida Brigadeiro Faria Lima 3144
Street (continued): 11 floor
City: Sao Paulo
State / country code: D5
Postal code: 01451-000

Seller — prior-sale row 12, entry 1

Name: KAPITALO MASTER III FIM IE
Street: Avenida Brigadeiro Faria Lima 3144
Street (continued): 11 floor
City: Sao Paulo
State / country code: D5
Postal code: 01451-000

Seller — prior-sale row 13, entry 1

Name: KAPITALO MASTER III FIM IE
Street: Avenida Brigadeiro Faria Lima 3144
Street (continued): 11 floor
City: Sao Paulo
State / country code: D5
Postal code: 01451-000

Seller — prior-sale row 14, entry 1

Name: KAPITALO MASTER III FIM IE
Street: Avenida Brigadeiro Faria Lima 3144
Street (continued): 11 floor
City: Sao Paulo
State / country code: D5
Postal code: 01451-000

Seller — prior-sale row 15, entry 1

Name: KAPITALO MASTER III FIM IE
Street: Avenida Brigadeiro Faria Lima 3144
Street (continued): 11 floor
City: Sao Paulo
State / country code: D5
Postal code: 01451-000

Seller — prior-sale row 16, entry 1

Name: KAPITALO MASTER III FIM IE
Street: Avenida Brigadeiro Faria Lima 3144
Street (continued): 11 floor
City: Sao Paulo
State / country code: D5
Postal code: 01451-000

Seller — prior-sale row 17, entry 1

Name: KAPITALO MASTER III FIM IE
Street: Avenida Brigadeiro Faria Lima 3144
Street (continued): 11 floor
City: Sao Paulo
State / country code: D5
Postal code: 01451-000

Seller — prior-sale row 18, entry 1

Name: KAPITALO MASTER III FIM IE
Street: Avenida Brigadeiro Faria Lima 3144
Street (continued): 11 floor
City: Sao Paulo
State / country code: D5
Postal code: 01451-000

Seller — prior-sale row 19, entry 1

Name: KAPITALO MASTER III FIM IE
Street: Avenida Brigadeiro Faria Lima 3144
Street (continued): 11 floor
City: Sao Paulo
State / country code: D5
Postal code: 01451-000

Prior-sale reporting

Nothing to report for the preceding three months: N

Remarks

Brazilian Depositary Receipts are certificates representing Common Shares of the Issuer. Three BDRs represent one Common Share of the Issuer

Notice signature

Notice date: 09/29/2026
Signed: Joao Carlos T Pinho

Company context

We are an Americas gold and copper production company with a significant portfolio of mining operations. Our mission is to deliver long-term value by unlocking operational efficiencies, responsibly growing our portfolio with a focus on return on invested capital, responsible mining practices and a commitment to sustainability. We operate with a decentralized culture, supported by a lean corporate team that ensures agile and dynamic management and decision-making processes, focused on high operational sustainability compliance standards.

Current securities

AUGONASDAQ · EQUITY · Current

Historical securities (2)

ARMZFOTC · EQUITY · Historical · closed Oct 11, 2022 ORAAFOTC · EQUITY · Historical · closed Jul 15, 2025

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