Beneficial Ownership Report · SCHEDULE 13G/A
Fortuna Mining Corp.
Beneficial Ownership Report
Structured filing — SCHEDULE 13G/A
primary_doc.xml
Amendment · This filing reports the amendment as submitted.
Subject company
- Company
- Fortuna Mining Corp
- Company CIK
- 0001341335
- Street
- 200 Burrard St
- Street (continued)
- Suite 650
- City
- Vancouver
- State / country code
- Z4
- Postal code
- V6C 3L6
Statement details
- Amendment number
- 1
- Security class
- Common Stock
- Event date
- 09/30/2026
- Rule designation
- Rule 13d-1(b)
Reporting person 1
- Name
- Dimensional Fund Advisors LP
- Citizenship / organization
- X1
- Reporting person type
- IA
- Group designation
- b
- Aggregate amount owned
- 18,429,523.00
- Percent of class
- 6.2
- Sole voting power
- 18,358,464
- Shared voting power
- 0
- Sole dispositive power
- 18,429,523
- Shared dispositive power
- 0
Item 1
Issuer
Fortuna Mining Corp
Principal executive office address
200 Burrard St, Suite 650, Vancouver, BC V6C 3L6, Canada
Item 2
Citizenship
Delaware Limited Partnership
Filing person
Dimensional Fund Advisors LP
Principal business or residence address
6300 Bee Cave Road, Building One, Austin, TX 78746
Item 3
Not applicable indication
N
Type of filing person
IA
Item 4
Percent of class
6.2
Amount beneficially owned
18,429,523 ** see Note 1 ** ** Note 1 ** Dimensional Fund Advisors LP, an investment adviser registered under Section 203 of the Investment Advisors Act of 1940, furnishes investment advice to four investment companies registered under the Investment Company Act of 1940, and serves as investment manager or sub-adviser to certain other commingled funds, group trusts and separate accounts (such investment companies, trusts and accounts, collectively referred to as the "Funds"). In certain cases, subsidiaries of Dimensional Fund Advisors LP may act as an adviser or sub-adviser to certain Funds. In its role as investment advisor, sub-adviser and/or manager, Dimensional Fund Advisors LP or its subsidiaries (collectively, "Dimensional") may possess voting and/or investment power over the securities of the Issuer that are owned by the Funds, and may be deemed to be the beneficial owner of the shares of the Issuer held by the Funds. However, all securities reported in this schedule are owned by the Funds. Dimensional disclaims beneficial ownership of such securities. In addition, the filing of this Schedule 13G shall not be construed as an admission that the reporting person or any of its affiliates is the beneficial owner of any securities covered by this Schedule 13G for any other purposes than Section 13(d) of the Securities Exchange Act of 1934.
Sole voting power
18,358,464** see Note 1 **
Shared voting power
0
Sole dispositive power
18,429,523** see Note 1 **
Shared dispositive power
0
Item 5
Not applicable indication
Y
Item 6
Not applicable indication
N
Ownership on behalf of another person
The Funds described in Note 1 above have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of the securities held in their respective accounts. To the knowledge of Dimensional, the interest of any one such Fund does not exceed 5% of the class of securities. Dimensional Fund Advisors LP disclaims beneficial ownership of all such securities.
Item 7
Not applicable indication
Y
Item 8
Not applicable indication
Y
Item 9
Not applicable indication
Y
Item 10
Not applicable indication
N
Certifications
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.
Signature 1
- Reporting person
- Dimensional Fund Advisors LP
- Signed
- Selwyn Notelovitz
- Title
- Global Chief Compliance Officer
- Date
- 10/08/2026
Company context
Fortuna Mining Corp. is a Canadian precious metals mining company with three operating mines in Argentina, Côte d’Ivoire, and Peru, and the feasibility-stage Diamba Sud Gold Project in Senegal. Our exploration portfolio spans our operating jurisdictions as well as Guinea and Guyana. Sustainability is at the core of our operations and stakeholder relationships. We produce gold and silver while creating long-term shared value through efficient production, environmental stewardship, and social responsibility. For more information, please visit our website at www.fortunamining.com