Form 8-K LINCOLN ELECTRIC HOLDING For: Aug 10

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): August 10, 2026

LINCOLN ELECTRIC HOLDINGS, INC.

(Exact name of registrant as specified in its charter)

22801 St Clair Avenue Cleveland, Ohio 44117

(Address of principal executive offices, with zip code)

(216) 481-8100

(Registrant’s telephone number, including area code)

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 (see General Instruction A.2. below):

Securities registered pursuant to Section 12(b) of the Act:

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. ☐

On August 10, 2026, Michael J. Whitehead, Executive Vice President, President of Americas Welding, notified Lincoln Electric Holdings, Inc. (the “Company”) of his decision to resign from the Company, effective August 28, 2026, to pursue other business opportunities outside of the Company. Mr. Whitehead’s resignation did not result from any disagreement with the Company, its Board of Directors or management regarding the Company’s operations, policies, or practices.

In the interim, Americas Welding will be jointly led by Gary Konarska, Vice President, Global Product Strategy, and Albert Castillo, Vice President, Americas Welding, Sales & LATAM Operations, until a successor is named. Mr. Konarska and Mr. Castillo are both seasoned leaders with the Company and will continue to advance the Company’s RISE strategic priorities and maintain a customer-first approach.

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.