SEC Form 6-K filed by Alvotech

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.
Form 20-F [ X ]      Form 40-F [   ]

Incorporation by Reference

This Report on Form 6-K (this “Report”) of Alvotech (the “Company”) excluding Exhibit 99.1 attached hereto, shall be deemed to be incorporated by reference into the Company’s registration statements on Forms F-3 (File Nos. 333-266136, 333-273262, 333-275111 and 333-281684), the Company’s registration statement on Form F-3ASR (File No. 333-289006), and the Company’s registration statement on Form S-8 (File No. 333-266881) and to be a part thereof from the date on which this Report is filed, to the extent not superseded by documents or reports subsequently filed or furnished. Exhibit 99.1 to this Report is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (the “Exchange Act”) or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Exchange Act.

Press Releases

On October 6, 2025, Alvotech issued a Press Release announcing that the European Medicines Agency has accepted a Marketing Authorization Application for AVT23, a proposed biosimilar to Xolair®. Alvotech developed AVT23 in collaboration with Kashiv BioSciences LLC, and has licensed commercialization rights to its partner Advanz Pharma Holdco Limited, for the European Economic Area (European Union, Norway, Iceland and Lichtenstein), UK, Switzerland, Canada, Australia and New Zealand. A copy of the Press Release is furnished herewith as exhibit 99.1.

EXHIBIT INDEX

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, thereunto duly authorized.