# EDGAR Filing Document

**Accession Number:** 0001506492
**File Stem:** 0001140361-26-024103
**Filing Date:** 2026-6
**Character Count:** 15446
**Document Hash:** 68fb79455b98723c110ddbacd3e4819b
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001140361-26-024103.hdr.sgml**: 20260605

**ACCESSION NUMBER**: 0001140361-26-024103

**CONFORMED SUBMISSION TYPE**: S-1MEF

**PUBLIC DOCUMENT COUNT**: 12

**FILED AS OF DATE**: 20260605

**DATE AS OF CHANGE**: 20260605

**EFFECTIVENESS DATE**: 20260605

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Nuwellis, Inc.
- **CENTRAL INDEX KEY:** 0001506492
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTROMEDICAL & ELECTROTHERAPEUTIC APPARATUS [3845]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 680533453
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** S-1MEF
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-296518
- **FILM NUMBER:** 261066876

**BUSINESS ADDRESS:**
- **STREET 1:** 12988 VALLEY VIEW ROAD
- **CITY:** EDEN PRAIRIE
- **STATE:** MN
- **ZIP:** 55344
- **BUSINESS PHONE:** 952-345-4200

**MAIL ADDRESS:**
- **STREET 1:** 12988 VALLEY VIEW ROAD
- **CITY:** EDEN PRAIRIE
- **STATE:** MN
- **ZIP:** 55344

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** CHF Solutions, Inc.
- **DATE OF NAME CHANGE:** 20170523

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Sunshine Heart, Inc.
- **DATE OF NAME CHANGE:** 20101124

As filed with the Securities and Exchange Commission on June 5, 2026

Registration No. 333-

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### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

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### FORM S-1

#### REGISTRATION STATEMENT
*UNDER*

*THE SECURITIES ACT OF 1933*

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## NUWELLIS, INC.
(Exact name of registrant as specified in its charter)

---

| | | |
|:---|:---|:---|
| **Delaware** | **3845** | **68-0533453** |
| (State or other jurisdiction of incorporation or organization) | (Primary Standard Industrial Classification Code Number) | (I.R.S. Employer Identification No.) |

---

#### <br>

#### 12988 Valley View Road

#### Eden Prairie, Minnesota 55344
(952) 345-4200

(Address, including zip code, and telephone number, including area code, of Registrant's principal executive offices)

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#### <br>

#### John L. Erb

#### Chief Executive Officer

#### Nuwellis, Inc.

#### 12988 Valley View Road

#### Eden Prairie, Minnesota 55344
(952) 345-4200

(Name, address, including zip code, and telephone

number, including area code, of agent for service)

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***Copies to:***<br>

** 

<br> ---

| | | |
|:---|:---|:---|
| **Phillip D. Torrence, Esq.<br> Jessica M. Herron, Esq.<br> N. Danny Shulman, Esq.<br> Michael J. Rosenberg, Esq.<br> Honigman LLP<br> 650 Trade Centre Way, Suite 200<br> Kalamazoo, Michigan 49002<br> Tel: (269) 337-7700<br> Fax: (269) 337-7703** | **Neil Ayotte<br> Senior Vice President, General Counsel, Secretary<br> and Chief Compliance Officer<br> Nuwellis, Inc.<br> 12988 Valley View Road<br> Eden Prairie, Minnesota 55344<br> Tel: (952) 345-4200** | **Michael F. Nertney, Esq.<br> Ellenoff Grossman & Schole LLP<br> 1345 Avenue of the Americas<br> New York, New York 10105<br> Tel: (212) 370-1300<br> Fax: (212) 401-4741** |
| **Phillip D. Torrence, Esq.<br> Jessica M. Herron, Esq.<br> N. Danny Shulman, Esq.<br> Michael J. Rosenberg, Esq.<br> Honigman LLP<br> 650 Trade Centre Way, Suite 200<br> Kalamazoo, Michigan 49002<br> Tel: (269) 337-7700<br> Fax: (269) 337-7703** | **Neil Ayotte<br> Senior Vice President, General Counsel, Secretary<br> and Chief Compliance Officer<br> Nuwellis, Inc.<br> 12988 Valley View Road<br> Eden Prairie, Minnesota 55344<br> Tel: (952) 345-4200** | **Michael F. Nertney, Esq.<br> Ellenoff Grossman & Schole LLP<br> 1345 Avenue of the Americas<br> New York, New York 10105<br> Tel: (212) 370-1300<br> Fax: (212) 401-4741** |

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#### Approximate date of commencement of proposed sale to the public: As soon as practicable after this Registration Statement becomes effective.

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, check the following box: ☒

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☒ (File No. **333-296198)**

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Exchange Act:

Large accelerated filer ☐ Accelerated filer ☐ Non-accelerated filer ☒ Smaller reporting company ☒ <br> 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 7(a)(2)(B) of the Securities Act. ☐

**This Registration Statement shall become effective upon filing with the Securities and Exchange Commission in accordance with Rule 462(b) under the Securities Act of 1933, as amended.**

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#### EXPLANATORY NOTE

This Registration Statement is being filed pursuant to Rule 462(b) as promulgated under the Securities Act of 1933, as amended, and includes the registration statement facing page, this page, the signature page, an exhibit index and the required opinion and consents solely to register up to an aggregate of (i) $1,000,000 in additional shares of common stock of the Company, par value $0.0001 per share (the "Common Stock"), (ii) $2,000,000 in additional shares of common stock issuable upon the exercise of Series C Warrants ("Series C Warrants"), (iii) $2,000,000 in additional shares of Common Stock issuable upon the exercise of Series D Warrants ("Series D Warrants"), (iv) $49,500 in additional shares of Common Stock issuable upon the exercise of Placement Agent Warrants and (v) any Series C Warrants, Series D Warrants, Placement Agent Warrants and Pre-Funded Warrants related thereto. The contents of the Registration Statement on Form S-1 (Registration No. 333-296198), as amended, including the exhibits and power of attorney thereto, which was declared effective by the Securities and Exchange Commission on June 4, 2026, are incorporated by reference in this Registration Statement.

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| | |
|:---|:---|
| **Item 16.**<br>| **Exhibits and Financial Statement Schedules.** |

---

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| | |
|:---|:---|
| **Exhibit Number** | **Description** |
| [5.1\*\*](https://www.sec.gov/Archives/edgar/data/1506492/000114036126022629/ny20073226x1_ex5-1.htm) | Opinion of Honigman LLP. |
| [23.1\*](ef20075601_ex23-1.htm) | Consent of Independent Registered Public Accounting Firm. |
| [23.2\*\*](https://www.sec.gov/Archives/edgar/data/1506492/000114036126022629/ny20073226x1_ex5-1.htm) | Consent of Honigman LLP (included in Exhibit 5.1). |
| [24.1\*\*](https://www.sec.gov/Archives/edgar/data/1506492/000114036126022629/ny20073226x1_s1.htm#tPOA) | Power of Attorney (incorporated by reference to Exhibit 24.1 to the Form S-1 Registration Statement (Registration No. 333-296198), filed by Nuwellis, Inc. on May 22, 2026). |
| [107\*](ef20075601_ex107.htm) | Filing Fee Table |

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\* Filed herewith.

\*\* Previously filed.

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#### SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized in the City of Eden Prairie, State of Minnesota, on this 5<sup>th</sup> day of June, 2026.

---

| | |
|:---|:---|
| **NUWELLIS, INC.** | **NUWELLIS, INC.** |
| By: | /s/ JOHN L. ERB |
|  | John L. Erb |
|  | *President, Chief Executive Officer, Director* |

---

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Pursuant to the requirements of the Securities Act of 1933, as amended, this registration statement has been signed by the following persons in the capacities and as of the dates indicated.

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| | | |
|:---|:---|:---|
| **Signature** | **Title** | **Date** |
| /s/ John L. Erb | President, Chief Executive Officer<br> Chairman of the Board<br> (principal executive officer) | June 5, 2026 |
| John L. Erb | President, Chief Executive Officer<br> Chairman of the Board<br> (principal executive officer) | June 5, 2026 |
| /s/ Carisa Schultz | Chief Financial Officer<br> (principal financial and accounting officer) | June 5, 2026 |
| Carisa Schultz | Chief Financial Officer<br> (principal financial and accounting officer) | June 5, 2026 |
| \* | Director | June 5, 2026 |
| Martin J. Emerson | Director | June 5, 2026 |
| \* | Director | June 5, 2026 |
| Archelle Georgiou, M.D. | Director | June 5, 2026 |
| \* | Director | June 5, 2026 |
| Gregory Waller | Director | June 5, 2026 |
| \* | Director | June 5, 2026 |
| David McDonald | Director | June 5, 2026 |

---

---

| | |
|:---|:---|
| By: | <u>/s/ John L. Erb</u> |
|  | John L. Erb |
|  | Attorney-in-fact |

---

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## Exhibit 23.1

#### Exhibit 23.1

#### Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the Registration Statement on Form S-1 of Nuwellis, Inc. and Subsidiary of our report dated March 11, 2026, relating to the consolidated financial statements of Nuwellis, Inc. and Subsidiary in the Annual Report on Form 10-K for the years ended December 31, 2025 and 2024, which includes an explanatory paragraph relating to the Company's ability to continue as a going concern as described in Note 1 to the consolidated financial statements. We also consent to the reference to us under the heading "Experts" in such Registration Statement.

/s/ Baker Tilly US, LLP

Minneapolis, Minnesota

June 5, 2026

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## Ex-Filing

?xml version='1.0' encoding='ASCII'?

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**Exhibit 107**

**Calculation of Filing Fee Tables**

**FORM S-1**

(Form Type)

**NUWELLIS, INC.**

(Exact Name of Registrant as Specified in its Charter)

**<u>Table 1: Newly Registered Securities</u>**

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| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **Security Type** | **Security Class Title** | **Fee Calculation or Carry Forward Rule** | **Amount Registered** | **Proposed Maximum Offering Price Per Unit** | **Maximum Aggregate <br>Offering Price**<sup>(1)(2)</sup>** | **Fee Rate** | &nbsp;&nbsp; **Amount of Registration Fee**<sup>(2)</sup>** |
| &nbsp;&nbsp; Fees to be Paid  | Equity | Pre-Funded Warrants to purchase shares of Common Stock, par value $0.0001 per share <sup>(3)(4)</sup> | Rule 457(g) |  |  | $0.00 | $0.00013810 | $0.00 |
| &nbsp;&nbsp; Fees to be Paid  | Equity | Series C Common Warrants to purchase shares of Common Stock, par value $0.0001 per share<sup>(3)(5)</sup> | Rule 457(g) |  |  | $0.00 | $0.00013810 | $0.00 |
| &nbsp;&nbsp; Fees to be Paid  | Equity | Series D Common Warrants to purchase shares of Common Stock, par value $0.0001 per share<sup>(3)(6)</sup> | Rule 457(g) |  |  | $0.00 | $0.00013810 | $0.00 |
| &nbsp;&nbsp; Fees to be Paid  | Equity | Placement Agent Warrants to purchase shares of Common Stock, par value $0.0001 per share<sup>(3)</sup> | Rule 457(g) |  |  | $0.00 | $0.00013810 | $0.00 |
| &nbsp;&nbsp; Fees to be Paid  | Equity | Shares of Common Stock, par value $0.0001 per share, issuable upon exercise of the Series C Common Warrants and Series D Common Warrants | Rule 457(o) |  |  | $4000000.00 | $0.00013810 | $552.40 |
| &nbsp;&nbsp; Fees to be Paid  | Equity | Shares of Common Stock, par value $0.0001 per share | Rule 457(o) |  |  | $1000000.00 | $0.00013810 | $138.10 |
| &nbsp;&nbsp; Fees to be Paid  | Equity | Shares of Common Stock, par value $0.0001 per share, issuable upon exercise of the Placement Agent Warrants<sup>(7)</sup> | Rule 457(o) |  |  | $49500.00 | $0.00013810 | $6.84 |
|  | &nbsp;&nbsp; **Total Offering Amounts** | &nbsp;&nbsp; **Total Offering Amounts** | &nbsp;&nbsp; **Total Offering Amounts** | &nbsp;&nbsp; **Total Offering Amounts** |  | $5049500.00 |  | $697.34 |
|  | &nbsp;&nbsp; **Total Fees Previously Paid** | &nbsp;&nbsp; **Total Fees Previously Paid** | &nbsp;&nbsp; **Total Fees Previously Paid** | &nbsp;&nbsp; **Total Fees Previously Paid** |  |  |  | $0.00 |
|  | &nbsp;&nbsp; **Total Fee Offset** | &nbsp;&nbsp; **Total Fee Offset** | &nbsp;&nbsp; **Total Fee Offset** | &nbsp;&nbsp; **Total Fee Offset** |  |  |  | $0.00 |
|  | &nbsp;&nbsp; **Net Fee Due** | &nbsp;&nbsp; **Net Fee Due** | &nbsp;&nbsp; **Net Fee Due** | &nbsp;&nbsp; **Net Fee Due** |  |  |  | $697.34 |

---

(1) Pursuant to Rule 416 under
the Securities Act of 1933, as amended (the "Securities Act"), there are also
being registered such indeterminate number of additional securities as may be
issued to prevent dilution resulting from stock splits, stock dividends and
similar transactions.

(2) Estimated solely for the
purpose of calculating the registration fee pursuant to Rules 457(o) under the
Securities Act. Represents only the additional dollar amount of securities
being registered. Does not include the securities that the Company previously
registered on the Registration Statement on Form S-1 (File No. 333-296198) (the
"Registration Statement").The Company previously paid
aggregate filing fees of $3,486.68 in connection with previous filings of the
Registration Statement.

(3) No separate registration
fee is payable pursuant to Rule 457(g) under the Securities Act.

(4) The proposed maximum
aggregate offering price of the common stock will be reduced on a
dollar-for-dollar basis based on the offering price of any pre-funded warrants
issued in the offering, and the proposed maximum aggregate offering price of
the pre-funded warrants to be issued in the offering will be reduced on a
dollar-for-dollar basis based on the offering price of any common stock issued
in the offering. Accordingly, the proposed maximum aggregate offering price of
the additional common stock and pre-funded warrants (including the common stock
issuable upon exercise of the pre-funded warrants) being registered hereby, if
any, is $1,000,000.

(5) Each Series C common
warrant is exercisable for three shares of the Company's common stock.

(6) Each Series D common
warrant is exercisable for one share of the Company's common stock.

(7) As estimated solely for the
purpose of calculating the registration fee pursuant to Rule 457(g) under the
Securities Act, the proposed maximum aggregate offering price of the placement
agent's warrants is $49,500.00, which is equal to 3.0% of the additional
aggregate number of shares of common stock and/or pre-funded warrants sold in
this offering at an exercise price equal to 165% of the combined public
offering price per share of common stock and accompanying common warrants.

------