Company: SNWV
Filing Date: 2025-05-21
Form Type: 8-K/A
Source: 0001628280-25-027118
Chunk: 1

Company: SANUWAVE Health, Inc.
Filing Date: 2025-05-21
Form: 8-K/A
Chunk 1
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 Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934.

Emerging growth company o

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. o

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#### Explanatory Note
This Current Report on Form 8-K/A (the “Report”) supplements the Current Report on Form 8-K filed with the Securities and Exchange Commission on May 15, 2025 (the “Original Form 8-K”) by Sanuwave Health, Inc. (the “Company”) disclosing, among other things, that on May 12, 2025, the Company dismissed CBIZ CPAs P.C. as the Company’s independent registered public accounting firm, and notified Baker Tilly US, LLP (“Baker Tilly”) of its formal decision to engage Baker Tilly to serve as the independent registered public accounting firm of the Company for the year ending December 31, 2025, effective beginning with the review of the Company’s condensed consolidated financial statements for the quarter ending June 30, 2025, and subject to completion of Baker Tilly’s client acceptance procedures.

This Report is being filed now that Baker Tilly has completed its client acceptance procedures. This Report does not amend or change any of the information previously disclosed in the Original Form 8-K.

Item 4.01 Changes in Registrant's Certifying Accountant.

Baker Tilly has completed its client acceptance procedures as referenced in the Original Form 8-K, and the Company and Baker Tilly entered into an engagement letter on May 20, 2025. There have been no changes to the disclosures regarding consultations, reports, disagreements (as described in Item 304(a)(1)(iv) of Regulation S-K and the related instructions) or a “reportable event” (as described in Item 304(a)(1)(v) of Regulation S-K and the related instructions) related to the Company and Baker Tilly from those in the Original Form 8-K.

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### 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.

| Dated: May 21, 2025 |     |