Form 8-K

8-K — McEwen Inc.

Accession: 0001104659-26-079394

Filed: 2026-06-30

Period: 2026-06-29

CIK: 0000314203

SIC: 1040 (GOLD & SILVER ORES)

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — tm2619394d1_8k.htm (Primary)

EX-99.1 — EXHIBIT 99.1 (tm2619394d1_ex99-1.htm)

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of

the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):

June 29, 2026

McEWEN INC.

(Exact name of registrant as specified in

its charter)

Colorado

001-33190

84-0796160

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

150 King Street West, Suite 2800

Toronto,

Ontario, Canada

M5H 1J9

(Address of principal executive offices)

(Zip Code)

Registrant’s telephone number including area code:

(866) 441-0690

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing

is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨  Written communications pursuant to Rule 425 under the

Securities Act (17 CFR 230.425)

¨  Soliciting material pursuant to Rule 14a-12 under the

Exchange Act (17 CFR 240.14a-12)

¨  Pre-commencement

communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨  Pre-commencement

communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of

the Act:

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Common Stock

MUX

New York Stock Exchange

Indicate by check mark whether the registrant is an emerging

growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of

the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth

company ¨

If an emerging

growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with

any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Item 7.01

Regulation FD Disclosure.

On June 29, 2026, McEwen Inc. (the “Company”)

announced that its common stock has been added to the Russell 2000® Index. A copy of the press release is furnished with this report

as Exhibit 99.1. Investors and other interested parties are encouraged to read in its entirety the press release because

it contains important information not otherwise described herein.

The information furnished

under this Item 7.01, including the referenced exhibit, shall not be deemed “filed” for purposes of Section 18 of the

Securities Exchange Act of 1934, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, except

as shall be expressly set forth by reference to such filing.

Item 9.01 Financial Statements and

Exhibits.

(d) Exhibits.

The following exhibits are furnished or filed with this report, as applicable:

Exhibit No.

Description

99.1

Press Release, dated June 29, 2026

104

Cover Page Interactive Data File – the cover page XBRL tags are embedded within the Inline XBRL document

Cautionary Statement

With the exception of

historical matters, the press release contains certain forward-looking statements and information, including "forward-looking statements"

within the meaning of the Private Securities Litigation Reform Act of 1995. The forward-looking statements and information expressed,

as of the date of the press release, are estimates, forecasts, projections, expectations, or beliefs as to future events and results.

Forward-looking statements and information are necessarily based upon a number of estimates and assumptions that, while considered reasonable

by management, are inherently subject to significant business, economic, and competitive uncertainties, risks, and contingencies, and

there can be no assurance that such statements and information will prove to be accurate. Therefore, actual results and future events

could differ materially from those anticipated in such statements and information. Risks and uncertainties that could cause results or

future events to differ materially from current expectations expressed or implied by the forward-looking statements and information include,

but are not limited to, fluctuations in the market price of precious and base metals, mining industry risks, political, economic, social

and security risks associated with foreign operations, the ability of the Company to receive or receive in a timely manner permits or

other approvals required in connection with operations, risks associated with the construction of mining operations and commencement of

production and the projected costs thereof, risks related to litigation, the state of the capital markets, environmental risks and hazards,

uncertainty as to calculation of mineral resources and reserves, foreign exchange volatility, foreign exchange controls, foreign currency

risk, and other risks. Readers should not place undue reliance on forward-looking statements or information included in the press release,

which speak only as of the date thereof. The Company undertakes no obligation to reissue or update forward-looking statements or information

as a result of new information or events after the date hereof except as may be required by law. See the Company’s Annual Report

on Form 10-K for the fiscal year ended December 31, 2025, and other filings with the Securities and Exchange Commission, under

the caption "Risk Factors", for additional information on risks, uncertainties and other factors relating to the forward-looking

statements and information regarding the Company. All forward-looking statements and information made in the press release are qualified

by this cautionary statement.

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 hereunto duly authorized.

McEWEN INC.

Date: June 30, 2026

By:

/s/ Carmen Diges

Carmen Diges, General Counsel

EX-99.1 — EXHIBIT 99.1

EX-99.1

Filename: tm2619394d1_ex99-1.htm · Sequence: 2

Exhibit 99.1

McEwen Inc. Joins Russell 2000®

Index

TORONTO, ONTARIO, June 29,

2026 – McEwen Inc. (NYSE/TSX: MUX) today announced that it has been added to the Russell 2000® Index

as part of the June 2026 Russell Reconstitution. The reconstitution becomes effective upon the opening of US equity markets on June 29,

2026. Membership in the Russell 2000® Index is based on inclusion in the broad-market Russell 3000®

Index.

The Russell 3000®

Index represents approximately 98% of the investable US equity market by market capitalization and serves as the foundation for the Russell

1000® and Russell 2000® indexes. The Russell 1000® Index measures the performance of the

largest 1,000 companies within the Russell 3000® Index, while the Russell 2000® Index measures the performance

of the smallest 2,000 companies within that universe.

Rob McEwen, Chairman

and Chief Owner of McEwen Inc., comments:

“We are delighted

that McEwen has been added to the Russell 2000® Index. We believe this inclusion will increase McEwen’s visibility

among institutional investors and index-tracking strategies. As we continue advancing our portfolio of gold, silver and copper assets,

we remain focused on executing our growth plans, strengthening operating performance and creating long-term value for our shareholders.”

Russell indexes are global

benchmarks widely used by investment managers and institutional investors for index funds and active investment strategies. According

to data as of the end of June 2025, about $12.2 trillion in assets are benchmarked against the Russell US indexes, which belong

to FTSE Russell, the global index provider.

Fiona Bassett, CEO of FTSE Russell, an LSEG Business,

comments:

“The Russell indexes have continuously

adapted to the evolving dynamic US economy, and it’s crucial to fully recalibrate the suite of Russell US Indexes, ensuring the

indexes maintain an accurate representation of the market. The transition to a semi-annual reconstitution frequency this year will ensure

our indexes continue to represent the market and maintain the purpose of the index as a portfolio benchmark.”

For more information regarding the Russell indexes

and the reconstitution process, visit the “Russell Reconstitution” section on the FTSE Russell website.

ABOUT MCEWEN

McEwen is a diversified gold, silver

and copper company trading on the NYSE and TSX under

the ticker symbol “MUX”.

The Company provides shareholders

exposure to a growing base of gold and silver production in prolific mineral-rich regions throughout the Americas including

the Cortez Trend in Nevada, USA, the Timmins district of Ontario and Flin Flon in Manitoba, Canada, and the Deseado Massif in Santa

Cruz province, Argentina. McEwen is also advancing the reactivation of its El Gallo gold and silver mine in Mexico. The Company’s

near-term objective is to double its total annual production to 250,000–300,000 gold equivalent ounces by 2030.

McEwen Inc. Page 1

In addition,

McEwen provides exposure to copper through its 46.3% interest in McEwen Copper, which owns the large, long-life, advanced-stage

Los Azules development project in San Juan, Argentina. Based on the last equity financing for McEwen Copper, the implied

value of McEwen’s ownership interest is US$457 million.

Los Azules

is being developed with the goal of becoming one of the world’s first regenerative copper mines and achieving carbon neutrality

by 2038. The Feasibility Study released on October 7, 2025 highlights the project's strong economics and focus on environmental

stewardship.

McEwen also

recently purchased 27.3% of Paragon Advanced Labs Inc., a publicly traded company deploying PhotonAssay™ units around

the world, a technology that the Company believes is poised to become the new industry standard for assaying precious and base metals,

with Paragon seeking to become a leading service provider in the sector.

Chairman

and Chief Owner Rob McEwen has invested over US$290 million personally and takes a salary of $1 per

year, aligning his interests with those of our shareholders. He is a recipient of the Order of Canada, a member of the Canadian Mining

Hall of Fame and winner of the EY Entrepreneur of the Year (Energy) award. His goal is to significantly multiply the value of our shareholders’

investments and his own, as he did while building Goldcorp Inc.

About

FTSE Russell

FTSE Russell is a global index leader that

provides innovative benchmarking, analytics and data solutions for investors worldwide. FTSE Russell calculates thousands of indexes that

measure and benchmark markets and asset classes in more than 70 countries, covering 98% of the investable market globally.

FTSE Russell index expertise and products are

used extensively by institutional and retail investors globally. Approximately $21.2 trillion is benchmarked to FTSE Russell indexes.

Leading asset owners, asset managers, ETF providers and investment banks choose FTSE Russell indexes to benchmark their investment performance

and create ETFs, structured products and index-based derivatives.

A core set of universal principles guides FTSE

Russell index design and management: a transparent rules-based methodology is informed by independent committees of leading market participants.

FTSE Russell is focused on applying the highest industry standards in index design and governance and embraces the Principles of

the International Organization of Securities Commissions. FTSE Russell is also focused on index innovation and customer partnerships as

it seeks to enhance the breadth, depth and reach of its offering.

FTSE Russell is wholly owned by LSEG.

For more information, visit FTSE Russell.

McEwen Inc. Page 2

CAUTION CONCERNING

FORWARD-LOOKING STATEMENTS

This news release contains certain forward-looking

statements and information, including "forward-looking statements" within the meaning of the Private Securities Litigation Reform

Act of 1995. The forward-looking statements and information expressed are as at the date of this news release and are McEwen Inc.'s (the

"Company") estimates, forecasts, projections, expectations or beliefs as to future events and results. Forward-looking statements

and information are necessarily based upon a number of estimates and assumptions that, while considered reasonable by management, are

inherently subject to significant business, economic and competitive uncertainties, risks and contingencies, and there can be no assurance

that such statements and information will prove to be accurate. Therefore, actual results and future events could differ materially from

those anticipated in such statements and information. Risks and uncertainties that could cause results or future events to differ materially

from current expectations expressed or implied by the forward-looking statements and information include, but are not limited to, fluctuations

in the market price of precious metals, mining industry risks, political, economic, social and security risks associated with foreign

operations, the ability of the Company to receive or receive in a timely manner permits or other approvals required in connection with

operations, risks associated with the construction of mining operations and commencement of production and the projected costs thereof,

risks related to litigation, the state of the capital markets, environmental risks and hazards, uncertainty as to calculation of mineral

resources and reserves, foreign exchange volatility, foreign exchange controls, foreign currency risk, and other risks. Readers should

not place undue reliance on forward-looking statements or information included herein, which speak only as of the date hereof. The Company

undertakes no obligation to reissue or update forward-looking statements or information as a result of new information or events after

the date hereof except as may be required by law. See McEwen Inc.'s Annual Report on Form 10-K for the fiscal year ended December 31,

2025, and other filings with the Securities and Exchange Commission, under the caption "Risk Factors", for additional information

on risks, uncertainties and other factors relating to the forward-looking statements and information regarding the Company. All forward-looking

statements and information made in this news release are qualified by this cautionary statement.

The NYSE and TSX have not reviewed and do not

accept responsibility for the adequacy or accuracy of the contents of this news release, which has been prepared by the management of

McEwen.

Want News Fast?

Subscribe to our email list:

https://www.mcewenmining.com/contact-us/#section=followUs

and receive news as it happens!

WEB SITE

SOCIAL MEDIA

www.mcewenmining.com

McEwen

Facebook:

facebook.com/mceweninc

LinkedIn:

linkedin.com/company/mceweninc

CONTACT INFORMATION

X.com/mceweninc

150 King Street West

Instagram:

instagram.com/mceweninc

Suite 2800, PO Box 24

Toronto, ON, Canada

McEwen Copper

Facebook:

facebook.com/

mcewencopper

M5H 1J9

LinkedIn:

linkedin.com/company/mcewencopper

X.com/mcewencopper

Investor Relations

Instagram:

instagram.com/mcewencopper

(866)-441-0690 - Toll free line

(647)-258-0395

Rob McEwen

Facebook:

facebook.com/mcewenrob

Mihaela Iancu ext. 2006

LinkedIn:

linkedin.com/in/robert-mcewen-646ab24

info@mcewenmining.com

X.com/robmcewenmux

McEwen Inc. Page 3

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