UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): April 28, 2026

Nuwellis, Inc.

(Exact Name of Registrant as Specified in its Charter)

12988 Valley View Road, Eden Prairie, MN 55344

(Address of Principal Executive Offices) (Zip Code)

(952) 345-4200

(Registrant’s Telephone Number, Including Area Code)

Securities registered pursuant to Section 12(b) of the Act:

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:

☐	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))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

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. ☐

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(a) At the annual meeting of stockholders (the “Annual Meeting”) of the Company held on April 28, 2026, stockholders (i) elected two Class I director nominees to the Company’s board of directors to serve three-year terms until the 2029 annual meeting of stockholders or until his successor has been duly elected and qualified or such director’s earlier death, resignation, or removal (“Proposal 1”); and (ii) ratified the appointment of Baker Tilly US, LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026 (“Proposal 2”).

A total of 1,078,020 shares of the Company’s common stock were present at the Annual Meeting virtually or by proxy, which represents approximately 43.81% of the shares of common stock outstanding as of the record date for the Annual Meeting.

(b) The results of the voting are shown below.

Proposal 1 - Election of Directors

Proposal 2--Ratification of Appointment of Independent Registered Public Accounting Firm for 2026

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.

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