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, 99.2 and 99.3 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Form S-8 (File No. 333-266881) and to be a part thereof from the date on which this Report is filed, to the extent not superseded by documents or reports subsequently filed or furnished.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, 99.2 and 99.3 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.

Company Announcements

On January 6, 2026, the Company announced that according to a form filed with the Luxembourg Commission de Surveillance du Secteur Financier (CSSF) regarding transactions of managers and closely associated persons, Alvogen Lux Holdings S.a. r.l. had reported the acquisition of 7,007,321 shares in Alvotech at a price of SEK 44.06 per share. The date of the transaction was December 17, 2025. A copy of the form is furnished herewith as Exhibit 99.1.

On January 6, 2026, the Company also announced that according to a form filed with the Luxembourg Commission de Surveillance du Secteur Financier (CSSF) regarding transactions of managers and closely associated persons, ATP Holdings ehf. had reported the acquisition of 4,812,257 shares in Alvotech on December 17, 2025, at SEK 44.06 per share and 2,110,640 shares in Alvotech on December 19, 2025, at SEK 44.06 per share. Copies of these forms are furnished herewith as Exhibit 99.2 and Exhibit 99.3.

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.