Company: SNWV
Filing Date: 2025-05-21
Form Type: 8-K/A
Source: 0001628280-25-027118
Chunk: 0

Company: SANUWAVE Health, Inc.
Filing Date: 2025-05-21
Form: 8-K/A
Chunk 0
---
1

### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

#### FORM 8-K/A

#### Amendment No. 1

### CURRENT REPORT
<div align='center'>Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934</div>

| SANUWAVE Health, Inc.                                  |
| (Exact name of registrant as specified in its charter) |

| Nevada                                         |     | 000-52985               |     | 20-1176000                       |
| (State or other jurisdiction of incorporation) |     | -Commission File Number |     | -IRS Employer Identification No. |

|                                          |     | 11495 Valley View Road, | Eden Prairie, |     | Minnesota |     |     55344 |
| (Address of principal executive offices) |     |                         |               |     |           |     | -Zip Code |

| Registrant’s telephone number, including area code |     | -952 | 656-1029 |

| N/A                                                           |
| (Former name or former address, if changed since last report) |

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):

| ☐ |     | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)                  |
| ☐ |     | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)                 |
| ☐ |     | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) |
| ☐ |     | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) |

<div align='center'>Securities registered pursuant to Section 12(b) of the Act:</div>

| Title of each class                      |     | Trading Symbol(s) |     | Name of each exchange on which 
 registered                     |
| Common stock, par value $0.001 per share |     | SNWV              |     | The Nasdaq Stock Market LLC    |

Indicate by check mark whether the registration is an emerging growth company as defined in