Overview
The following update outlines the recent changes to Lundin Mining Corporation‘s issued share count and related disclosures. As of May 29, 2026, the company’s total issued and outstanding common shares with voting rights decreased to 855,378,907. This press-style summary explains the drivers behind the movement in share capital and points readers to the company’s filed transparency report.
Investors and stakeholders should note that the figures presented reflect combined effects from the company’s repurchase program and normal employee equity activity. The information below keeps the numerical facts intact while clarifying the mechanisms that produced the change.
What changed in the share count
Between May 1, 2026 and May 29, 2026, the number of issued and outstanding shares decreased by 231,484. The net reduction stems primarily from the company’s participation in share repurchases under its normal course issuer bid (NCIB), offset to a degree by the exercise of employee stock options and the vesting of employee share units. In short, the company bought back more shares than were newly issued through employee equity plans during this period.
Normal course issuer bid (NCIB) activity
Under its shareholder distribution framework, Lundin Mining allocates up to US$150 million annually for share repurchases executed through the NCIB. During 2026 to date, the company has repurchased 1,850,094 common shares at an aggregate cost of approximately US$51 million. These purchases are intended to return capital to shareholders and manage the company’s equity base in line with its distribution policy.
Employee equity effects
Offsetting part of the repurchase activity were issuances arising from employee compensation programs. The exercise of stock options and the vesting of share units resulted in additional common shares being issued to employees, which partially counterbalanced the reduction from buybacks. The net movement—an overall decrease of 231,484 shares—reflects the interplay of these two routine corporate activities.
ESTMA report filing and where to find it
Lundin Mining has filed its Extractive Sector Transparency Measures Act (ESTMA) report for the year ended December 31, 2026. The report provides disclosures required under Canadian transparency rules for extractive companies and is intended to show payments and related information for the extractive sector. Stakeholders can download the full ESTMA report directly from the company’s website at lundinmining.com.
Purpose of the ESTMA disclosure
The ESTMA report is designed to increase transparency about payments to governments and similar disclosures in jurisdictions where extractive activities occur. For Lundin Mining, publishing this report aligns with regulatory obligations and with broader corporate transparency expectations. The filing complements the share capital update by providing another regular disclosure that investors and civil society monitor.
About Lundin Mining and trading information
Lundin Mining Corporation is headquartered in Vancouver, Canada, and operates multiple mines in South America. The company produces metals that support infrastructure, electrification, and technology. Its strategic objective includes becoming a top-ten global copper producer, and its portfolio features significant development opportunities such as the Vicuña District project (50% interest) and a 31% interest in the Los Helados project adjacent to the Caserones mine, reflecting longer-term growth optionality.
The company’s shares trade on the Toronto Stock Exchange under the symbol LUN, and on Nasdaq Stockholm under the symbol LUMI. Lundin Mining emphasizes a track record of resource growth and operational delivery, combined with a focus on responsible development.
Regulatory notes and publication
The update on share capital and voting rights is provided in compliance with the disclosure obligations under the Swedish Financial Instruments Trading Act. The information regarding the ESTMA report is provided under the Swedish Securities Market Act. The company submitted these disclosures for publication through authorized contacts on May 29, 2026 at 4:00 Pacific Time.
For additional materials and to download any related multimedia, readers may consult the company’s official news distribution or visit the press release archive. The core numerical facts—share totals, buyback volumes, and the ESTMA filing date—are preserved here for reference and clarity.