# EDGAR Filing Document

**Accession Number:** 0001213867
**File Stem:** 0001140361-25-022709
**Filing Date:** 2025-6
**Character Count:** 7735
**Document Hash:** 9a0eb8e4c625b51fae7ccf7314429faa
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001140361-25-022709.hdr.sgml**: 20250616

**ACCESSION NUMBER**: 0001140361-25-022709

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250616

**DATE AS OF CHANGE**: 20250616

**SUBJECT COMPANY**: 

**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:** SCHEDULE 13D
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-86733
- **FILM NUMBER:** 251051645

**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
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ERB JOHN L
- **CENTRAL INDEX KEY:** 0001213867

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D

**MAIL ADDRESS:**
- **STREET 1:** C/O VASCULAR SOLUTIONS, INC.
- **STREET 2:** 6464 SYCAMORE COURT N.
- **CITY:** MINNEAPOLIS,
- **STATE:** MN
- **ZIP:** 55369

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**Nuwellis, Inc.**

*(Name of Issuer)*

**Common Stock, par value $0.0001 per share**

*(Title of Class of Securities)*

**67113Y603**

*(CUSIP Number)*

**John L. Erb**<br>12988 Valley View Road<br>Eden Prairie MN 55344<br>(952) 345-4200

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**06/09/2025**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **67113Y603** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**ERB JOHN L** | Name of reporting person<br>**ERB JOHN L** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**PF** | Source of funds (See Instructions)<br>**PF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**1666767.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**1666767.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**1666767.00** | Aggregate amount beneficially owned by each reporting person<br>**1666767.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**7.3%** | Percent of class represented by amount in Row (11)<br>**7.3%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Common Stock, par value $0.0001 per share

**(b) Name of Issuer:**
Nuwellis, Inc.

**(c) Address of Issuer's Principal Executive Offices:**
12988 Valley View Road, Eden Prairie, MN, 55344

**Item 4. Purpose of Transaction**

The Reporting Person exchanged his F Stock for F-1 Stock and converted the shares of F-1 Stock for investment purposes.

Except as set forth in this Item 4, the Reporting Person has no present plans or proposals that relate to or would result in: (a) the acquisition by any person of additional securities of the Issuer, or the disposition of securities of the Issuer; (b) an extraordinary corporate transaction, such as a merger, reorganization or liquidation, involving the Issuer or any of its subsidiaries; (c) a sale or transfer of a material amount of assets of the Issuer or any of its subsidiaries; (d) any change in the present Board or management of the Issuer, including any plans or proposals to change the number or term of directors or to fill any existing vacancies on the Board; (e) any material change in the present capitalization or dividend policy of the Issuer; (f) any other material change in the Issuer's business or corporate structure; (g) changes in the Issuer's charter, bylaws or instruments corresponding thereto or other actions which may impede the acquisition of control of the Issuer by any person; (h) causing a class of securities of the Issuer to be delisted from a national securities exchange or to cease to be authorized to be quoted in an inter-dealer quotation system of a registered national securities association; (i) a class of equity securities of the Issuer becoming eligible for termination of registration pursuant to Section 12(g)(4) of the Act; or (j) any action similar to any of those enumerated above.

**Item 5. Interest in Securities of the Issuer**

**(a)**
As of the time of this filing, the Reporting Person owns 1,100,022 shares of common stock and has beneficial ownership over an additional 566,745 shares of the Issuer's common stock (including 67 shares of common stock issuable upon the exercise of outstanding stock options, and 566,678 shares of common stock issuable upon conversion of 34 shares of Series F-1 Convertible Preferred Stock), representing an aggregate 7.3% ownership interest.

**(b)**
The Reporting Person has sole voting and sole dispositive powers with respect to the 1,666,734 shares owned (which includes 67 shares of common stock issuable upon the exercise of outstanding stock options, and 566,678 shares of common stock issuable upon conversion of 34 shares of Series F-1 Convertible Preferred Stock)

**(c)**
On June 9, 2025, the Reporting Person entered into a Securities Exchange Agreement with the Issuer, pursuant to which the Issuer issued 100 shares of its F-1 Stock in exchange for 100 shares of its outstanding F Stock.  On June 9, 2025, the Reporting Person converted 66 shares of F-1 Stock in exchange for 1,100,022 shares of the Issuer's common stock.

**Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.**

Except as set forth in this Schedule 13D, there are no contracts, arrangements, understandings or relationships between the Reporting Person and any other person with respect to the securities of the Issuer.

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** ERB JOHN L

**Signature:** /s/ John L. Erb

**Name/Title:** John L. Erb

**Date:** 06/16/2025