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): March 1017, 2026

Nuwellis, Inc.

(Exact Name of Registrant as Specified in its Charter)

Delaware	001-35312	No. 68-0533453
(State or Other Jurisdiction of Incorporation or Organization)	(Commission File Number)	(I.R.S. Employer Identification No.)
12988 Valley View Road, Eden Prairie, MN (Address of Principal Executive Offices)		55344 (Zip Code)

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~~Not ~~registered pursuant to Section 12(b) of the Act:~~Applicable

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, par value $0.0001 per share	NUWE	Nasdaq Capital Market

(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:

☐

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))

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

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, par value $0.0001 per share	NUWE	Nasdaq Capital Market

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. ☐

Item 28.0201. ~~Results~~Other ~~of Operations and Financial Condition~~Events.

On March 1017, 2026, Nuwellis, Inc. (the “Company”) ~~issued~~announced the aclosing ~~press~~of ~~release reporting~~ its ~~financial~~previously ~~results~~announced ~~for~~acquisition ~~the~~of ~~three and twelve months ended December 31~~Rendiatech, ~~2025~~Inc., Aan ~~copy~~Israeli-based developer of ~~the~~automated ~~press~~kidney ~~release~~function ismonitoring ~~attached~~technology ~~hereto~~designed asto ~~Exhibit~~support ~~99.1~~clinical ~~and~~decision-making isin ~~incorporated~~critically ~~herein~~ill ~~by reference~~patients.

In accordance with General Instruction B.2 of Form 8-K, the information included in this Current Report on Form 8-K (including Exhibit 99.1) is furnished pursuant to Item 2.02 and shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934, as amended, 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 Securities Exchange Act of 1934, as amended, except as expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit No. Description

99.1	Press Release, dated March 10, 2026, reporting the financial results of Nuwellis, Inc. for the three and twelve months ended December 31, 2025.
104	Cover Page Interactive Data File (embedded within Inline XBRL document).

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.

Date: March 10, 2026	NUWELLIS, INC.
Date: March 17, 2026	NUWELLIS, INC.
	By:	/s/ John L. Erb
	Name:	John L. Erb
	Title:	President and Chief Executive Officer

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