6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of April 2026

Commission File Number 001-41836

Birkenstock Holding plc

(Translation of registrant’s name into English)

1-2 Berkeley Square

London W1J 6EA

United Kingdom (Address of principal executive office)

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 ☒ Form 40-F ☐

Explanatory Note

On April 13, 2026, Birkenstock Holding plc (the "Company") issued a press release announcing to report its fiscal second quarter 2026 (ended March 31, 2026) financial results on Wednesday, May 13, 2026 before US market open. The Company will host a conference call and live webcast with the investment community at 8:00 a.m. Eastern Time that same day. A copy of the press release is furnished as Exhibit 99.1 to this Report on Form 6-K and incorporated by reference herein.

The information in this Report on Form 6-K (including Exhibit 99.1 hereto) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (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, as amended, or the Exchange Act, except as expressly set forth by specific reference in such a filing.

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.

EX-99.1

Exhibit 99.1

BIRKENSTOCK ANNOUNCES fiscal second quarter (ended march 31, 2026) results date and conference call scheduled for may 13, 2026

Birkenstock Holding plc (“BIRKENSTOCK” or the “Company”, NYSE: BIRK), announced today that the Company will report its fiscal second quarter 2026 (ended March 31, 2026) financial results on Wednesday, May 13, 2026 before the US market open. The Company will host a conference call and live webcast with the investment community at 8:00 a.m. Eastern Time that day.

The webcast will be accessible on the Company’s Investor Relations website at https://www.birkenstock-holding.com. To join the event please register via the general audience webcast link Birkenstock Fiscal Second Quarter 2026 Results - Events Platform - Q4. Covering analysts who wish to participate in the live Q&A session are required to pre-register to receive a dedicated link. An archive of the webcast will also be available on BIRKENSTOCK’s Investor Relations website.

ABOUT BIRKENSTOCK

Birkenstock Holding plc is the ultimate parent Company of Birkenstock Group B.V. & Co. KG and its subsidiaries (the "Birkenstock Group"). BIRKENSTOCK is a global brand which embraces all consumers regardless of geography, gender, age and income and which is committed to a clear purpose - encouraging proper foot health. Deeply rooted in studies of the biomechanics of the human foot and backed by a family tradition of shoemaking that can be traced back to 1774, BIRKENSTOCK is a timeless «super brand» with a brand universe that transcends product categories and ranges from entry-level to luxury price points while addressing the growing need for a conscious and active lifestyle. Function, quality and tradition are the core values of the Zeitgeist brand which features products in the footwear, sleep systems and natural cosmetics categories. BIRKENSTOCK is the inventor of the footbed and has shaped the principle of walking as intended by nature ("Naturgewolltes Gehen").

INVESTOR & MEDIA CONTACT

Birkenstock Holding plc

ir@birkenstock-holding.com