# EDGAR Filing Document

**Accession Number:** 0001506492
**File Stem:** 0001213867-25-000003
**Filing Date:** 2025-6
**Character Count:** 6996
**Document Hash:** 95ddf5a5a75afe7f6b966d6842c3c16e
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213867-25-000003.hdr.sgml**: 20250611

**ACCESSION NUMBER**: 0001213867-25-000003

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250609

**FILED AS OF DATE**: 20250611

**DATE AS OF CHANGE**: 20250611

**REPORTING-OWNER**: 

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

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-35312
- **FILM NUMBER:** 251041433

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

**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

**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

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

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>ERB JOHN L<br><sub>(Last) (First) (Middle)</sub><br>12988 VALLEY VIEW ROAD<br><sub>(Street)</sub><br>EDEN PRAIRIE, MN 55344<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2025-06-09 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [X] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_CEO and President_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Nuwellis, Inc. [ NUWE ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2025-06-09 |  | C |  | 1092500 | A | $0.06 | 1092500 | D |  |
| Common Stock | 2025-06-10 |  | C |  | 7522 | A | $0.06 | 1100022 | D |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Series F Convertible Preferred Stock | $0.06 | 2025-06-09 |  | J<sup>(1)</sup> |  |  | 100 | 2017-11-22 | <sup>(2)</sup> | Common Stock | 1666667 | <sup>(1)</sup> | 0 | D |  |
| Series F-1 Convertible Preferred Stock | $0.06 | 2025-06-09 |  | J<sup>(1)</sup> |  | 100 |  | 2025-06-09 | <sup>(2)</sup> | Common Stock | 1666667<sup>(3)</sup> | <sup>(1)</sup> | 100 | D |  |
| Series F-1 Convertible Preferred Stock | $0.06 | 2025-06-09 |  | C |  |  | 66 | 2025-06-09 | <sup>(2)</sup> | Common Stock | 1100022 | <sup>(3)</sup> | 34 | D |  |

---

### Footnotes:

(1) On June 9, 2025, the Issuer entered into a Securities Exchange Agreement with the Reporting Person, pursuant to which the Issuer agreed to issue 100 shares of its newly designated Series F-1 Convertible Preferred Stock ("F-1 Stock") in exchange for 100 shares of its outstanding Series F Convertible Preferred Stock ("F Stock"). Each share of F-1 Stock and F Stock has a stated value of $1,000.

(2) The preferred stock has no expiration date.

(3) The Reporting Person's shares of Series F-1 Convertible Preferred Stock are convertible into shares of common stock, par value $0.0001 per share, subject to a 19.99% beneficial ownership limitation.

**Signature:** /s/ Phillip D. Torrence, by Power of Attorney  
**Date:** 2025-06-11

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**