Nuwellis, Inc. (NUWE) - Dilution Analysis

Visualizing historical and potential share dilution over time

Dilution Analysis

High Risk
Significant dilution risk
Last updated: May 29, 2026

Risk Assessment Details

Potential Dilution: 1514.15% of current shares
Recent Dilution: 1261.65% (2 years)
Historical Dilution Factor: significant recent dilution
Outstanding Shares
2.7M
Potential Supply
41M
Additional shares possible
Splits
2 Splits 2 Reverse
Past 2 years

Summary

NUWE currently has 2.68M outstanding shares. with significant dilution risk as 40.6M authorized shares could dilute existing holders by 1514.1%. The company has significantly diluted shareholders by 1261.65% over the past 2 years, indicating aggressive capital raising. Recent corporate actions include 2 stock splits (positive for accessibility) and 2 reverse splits (concerning signal).

Share Structure Timeline

Outstanding Shares
Total Supply

Historical Data Points

Date Event Outstanding Supply
May 29, 2026

S-1/A filing: The company is offering up to 6,578,948 shares of common stock, pre-funded warrants, and series C and D common warrants in a combined offering.

2.7M 41M
May 22, 2026

S-1 filing: The company is offering up to 4,854,369 shares of common stock, pre-funded warrants, and Series C and D common warrants in a reasonable best-efforts offering.

2.7M 20M
May 15, 2026

10-Q filing | 2.7M shares outstanding

2.7M 920K
Jan 30, 2026

8-K filing: Nuwellis, Inc. entered into a securities purchase agreement for a private placement involving pre-funded warrants and common warrants, and also entered into a warrant inducement offer letter resulting in the exercise of existing warrants and issuance of new warrants. ($8.2M proceeds)

1.7M 920K
Nov 12, 2025

10-Q filing | 1.7M shares outstanding

1.7M 920K
Aug 14, 2025

10-Q filing | 0.9M shares outstanding

900K 920K
Jul 03, 2025
Stock Split

8-K filing: Stock split 1-for-42 | Outstanding: 4,373,968 → 104,100

100K 920K
Jun 09, 2025

8-K filing: Nuwellis, Inc. authorized the issuance of 100 shares of Series F-1 Convertible Preferred Stock and exchanged 100 shares of Existing Series F Stock for 100 shares of Series F-1 Stock with John L. Erb, the Company's CEO.

4.4M 39M
Jun 03, 2025

S-1/A filing: The company is offering shares of its common stock, pre-funded warrants to purchase shares of its common stock, and common warrants to purchase shares of its common stock.

4.4M 39M
May 30, 2025

S-1 filing: The company is offering shares of common stock, pre-funded warrants to purchase shares of common stock, and common warrants to purchase shares of common stock.

4.4M 33M
May 13, 2025

10-Q filing | 4.4M shares outstanding

4.4M 6.1M
Mar 11, 2025

10-K filing | 4.4M shares outstanding

4.4M 6.1M
Dec 19, 2024

S-1/A filing: This S-1/A filing registers for resale up to 3,734,511 shares of common stock issuable upon the exercise of Series I, Series II, and PA Warrants by the Selling Securityholders, with the company not receiving any proceeds from the sale of these shares, but expecting to use any proceeds from warrant exercises for working capital and general corporate purposes.

4.4M 6.1M
Nov 15, 2024

S-1 filing: This is an S-1 filing for the registration of common stock issuable upon the exercise of certain warrants by selling securityholders.

4.4M 6.1M
Nov 12, 2024

10-Q filing | 4.4M shares outstanding

4.4M 2.4M
Nov 07, 2024

8-K filing: Nuwellis, Inc. entered into warrant inducement offer letters with certain investors to immediately exercise approximately 1.8 million April 2024 Warrants, resulting in gross proceeds of approximately $3.8 million and the issuance of up to approximately 1.8 million shares of Common Stock. ($3.8M proceeds)

2.2M 2.4M
Aug 29, 2024

S-1/A filing: This S-1/A filing relates to the offer and resale of up to 1,422,031 shares of common stock issuable upon the exercise of common stock purchase warrants by selling securityholders.

1.9M 2.4M
Aug 26, 2024

8-K filing: Nuwellis, Inc. entered into a placement agency agreement and a securities purchase agreement to sell 483,351 shares of common stock at $1.8450 per share in a registered direct offering, along with warrants to purchase up to 483,351 additional shares, with the offering closing on August 26, 2024. ($0.89M proceeds)

1.1M 1.9M
Aug 15, 2024

S-1 filing: This S-1 filing registers shares of common stock issuable upon the exercise of July Warrants for resale by Selling Securityholders, with the company not receiving any proceeds from the sale of these shares but expecting to use net proceeds from warrant exercises for working capital and general corporate purposes.

1.1M 1.9M
Aug 13, 2024

10-Q filing | 1.4M shares outstanding

1.4M 990K
Jul 25, 2024

8-K filing: Nuwellis, Inc. entered into a placement agency agreement with Roth Capital Partners, LLC and a securities purchase agreement with certain purchasers for a registered direct offering of 469,340 shares of common stock at $4.24 per share, and warrants to purchase up to 938,680 shares of common stock at an exercise price of $3.99 per share. ($1.99M proceeds)

520K 990K
Jul 01, 2024

S-3 filing: Nuwellis, Inc. is filing an S-3 to offer and sell up to $25,000,000 of any combination of common stock, preferred stock, and debt securities from time to time.

520K 990K
Jun 27, 2024
Stock Split

8-K filing: Stock split 1-for-35 | Outstanding: 18,051,055 → 515,718

520K 990K
May 08, 2024

10-Q filing | 18.1M shares outstanding

18M 35M
May 01, 2024

8-K filing: Nuwellis, Inc. completed a registered public offering on April 30, 2024, issuing 8,419,996 shares of common stock, pre-funded warrants to purchase up to 2,830,004 shares, and common warrants to purchase up to 16,875,000 shares, with gross proceeds expected to be approximately $2.7 million. ($2.7M proceeds)

6.8M 35M
Apr 17, 2024

S-1/A filing: Nuwellis, Inc. is offering up to 13,579,576 shares of its common stock and common warrants to purchase up to 20,369,364 shares of common stock, along with pre-funded warrants to certain purchasers, with Roth Capital Partners, LLC acting as the exclusive placement agent.

6.8M 35M
Mar 13, 2024

S-1/A filing: This S-1/A filing registers the offering of common stock, common warrants and pre-funded warrants underwritten by Roth Capital Partners LLC.

6.8M 21M
Mar 11, 2024

10-K filing | 6.8M shares outstanding

6.8M 2M
Feb 08, 2024

S-1/A filing: The company granted a warrant to DaVita, Inc. to purchase up to 1,289,081 shares of common stock at an exercise price of $3.2996 per share, subject to certain vesting milestones.

3.3M 2M
Feb 05, 2024

S-1/A filing: The filing relates to an offering of units, each consisting of one share of common stock, one Series A warrant and one Series B warrant, and pre-funded units, each consisting of one pre-funded warrant, one Series A warrant and one Series B warrant.

3.3M 130M
Jan 31, 2024

S-1/A filing: The company is offering units, each consisting of one share of common stock and one common warrant, pre-funded warrants, and common warrants to purchase shares of its common stock.

3.3M 50M
Jan 18, 2024

S-1 filing: The company is filing an S-1 to offer shares of its common stock, pre-funded warrants to purchase shares of common stock, and common warrants to purchase shares of common stock.

3.3M 730K
Nov 07, 2023

10-Q filing | 3.3M shares outstanding

3.3M 730K
Oct 17, 2023

8-K filing: Nuwellis, Inc. completed a registered public offering of 150,000 units, each consisting of Series J Convertible Redeemable Preferred Stock and warrants, at a price of $15.00 per unit, with gross proceeds expected to be approximately $2.25 million. ($2.25M proceeds)

1.9M 730K
Oct 04, 2023

POS AM filing: This POS AM filing relates to an offering of up to 400,000 units, each consisting of one share of Series J Convertible Redeemable Preferred Stock and one warrant to purchase one-half of one share of Series J Convertible Preferred Stock.

1.9M 730K
Sep 29, 2023

S-1/A filing: S-1/A filing for offering of Series J Convertible Redeemable Preferred Stock and warrants.

1.9M 660K
Sep 21, 2023

S-1 filing: The company is offering units consisting of Series J Convertible Redeemable Preferred Stock and warrants to purchase Series J Convertible Preferred Stock on a best efforts basis.

1.9M 730K
Aug 08, 2023

10-Q filing | 1.9M shares outstanding

1.9M 730K
Jun 21, 2023

8-K filing: Nuwellis, Inc. entered into a Supply and Collaboration Agreement with DaVita Inc. and issued DaVita a warrant to purchase up to 1,289,081 shares of common stock at an exercise price of $3.2996 per share, subject to certain vesting milestones and ownership limitations.

1.1M 730K
May 09, 2023

10-Q filing | 1.1M shares outstanding

1.1M 730K
Mar 03, 2023

10-K filing | 1.2M shares outstanding

1.2M 730K
Mar 01, 2023

8-K filing: The company increased the aggregate number of shares of common stock that may be issued pursuant to equity incentive awards under the Inducement Plan by 44,078 shares for a total of 46,928 shares.

320K 730K
Dec 09, 2022
Stock Split

8-K filing: Stock split 1-for-100 | Outstanding: 31,531,650 → 315,316

320K 730K
Nov 08, 2022

10-Q filing | 31.5M shares outstanding

32M 73M
Oct 18, 2022

8-K filing: Nuwellis, Inc. completed a public offering, selling Class A Units (common stock and warrants) and Class B Units (Series I Preferred Stock and warrants), and the underwriters exercised their overallotment option, resulting in the issuance of common stock, preferred stock, and warrants.

32M 73M
Oct 13, 2022

S-1/A filing: This S-1/A filing registers shares of common stock underlying warrants and provides information on the company's shares outstanding before and after the offering.

11M 73M
Oct 12, 2022

S-1/A filing: This S-1/A filing includes information about shares of common stock underlying warrants, the number of shares outstanding before and after the offering, details on preferred stock, and the underwriter's over-allotment option.

11M 73M
Oct 11, 2022

S-1/A filing: This S-1/A filing registers shares of common stock underlying warrants and provides information on the company's outstanding shares of common stock and preferred stock before and after the offering.

11M 66M
Oct 06, 2022

S-1/A filing: The filing is an amended S-1 registration statement for an offering that includes shares of common stock underlying warrants, with an over-allotment option for additional shares and/or warrants.

11M 63M
Sep 30, 2022

S-1/A filing: This S-1/A filing registers shares of common stock underlying warrants, includes information about shares outstanding before and after the offering, and discusses the use of proceeds for general corporate purposes, including investments in commercialization efforts.

11M 66M
Sep 09, 2022

S-1 filing: This S-1 filing from 2022-09-09 relates to shares of common stock underlying warrants, with 10,537,606 shares of common stock outstanding before the offering.

11M 52M
Aug 11, 2022

10-Q filing | 10.5M shares outstanding

11M 52M
May 12, 2022

10-Q filing | 10.5M shares outstanding

11M 52M
Apr 21, 2022

8-K filing: Nuwellis, Inc. increased the aggregate number of shares of common stock that may be issued pursuant to equity incentive awards under the 2021 Inducement Plan by 35,000 shares, for a total of 285,000 shares.

11M 52M
Mar 03, 2022

10-K filing | 10.5M shares outstanding

11M 52M
Nov 10, 2021

10-Q filing | 10.5M shares outstanding

11M 52M
Sep 17, 2021

8-K filing: Nuwellis, Inc. completed an offering of 3,483,120 shares of common stock at $2.50 per share, with an additional 522,468 shares sold upon full exercise of the underwriters' option, resulting in gross proceeds of approximately $10.0 million. ($10.0M proceeds)

6.5M 52M
Aug 12, 2021

10-Q filing | 6.5M shares outstanding

6.5M 52M
Jun 21, 2021

S-3/A filing: The filing is for a shelf offering of up to $50,000,000 in aggregate amount of any combination of common stock, preferred stock, and debt securities.

6.5M 52M
Jun 04, 2021

S-3 filing: The company may offer and sell up to an aggregate amount of $50,000,000 of common stock, preferred stock, and/or debt securities.

2.7M 52M
May 13, 2021

10-Q filing | 2.7M shares outstanding

2.7M 41M
Mar 25, 2021

10-K filing | 2.7M shares outstanding

2.7M 41M
Mar 17, 2021

8-K filing: CHF Solutions, Inc. entered into an Underwriting Agreement to issue and sell 3,300,710 shares of its common stock at $5.50 per share, with an option for the underwriters to purchase an additional 495,106 shares. ($18.15M proceeds)

160K 41M
Feb 23, 2021

8-K filing: CHF Solutions, Inc. increased the aggregate number of shares of common stock that may be issued pursuant to equity incentive awards under the New-Hire Plan by 12,000 shares, bringing the total to 13,455 shares.

160K 41M
Nov 12, 2020

10-Q filing | 0.2M shares outstanding

160K 41M
Aug 21, 2020

8-K filing: CHF Solutions, Inc. completed a public offering on August 21, 2020, issuing 31,940,324 shares of common stock and warrants to purchase 31,940,324 shares of common stock, with net proceeds of approximately $11.2 million. ($14.37M proceeds)

44M 41M
Aug 17, 2020

S-1/A filing: This S-1/A filing includes shares of common stock underlying warrants, with 44,494,631 shares outstanding as of July 31, 2020, and 135 shares of Series F preferred stock outstanding.

44M 41M
Aug 06, 2020

S-1 filing: This S-1 filing includes information about shares of common stock underlying warrants, shares outstanding before and after the offering, preferred stock details, an over-allotment option, market and trading symbol information, intended use of proceeds, risk factors, and other related details.

44M 10M
Aug 05, 2020

10-Q filing | 43.2M shares outstanding

43M 17M
May 29, 2020

S-1 filing: This S-1 filing relates to the resale of shares of common stock issuable upon exercise of warrants by selling stockholders.

39M 17M
May 14, 2020

10-Q filing | 38.9M shares outstanding

39M 15M
May 06, 2020

S-1/A filing: This prospectus relates to the resale, from time to time, of (i) an aggregate of 4,161,392 shares of our common stock, par value $0.0001 per share (the "Common Stock") issuable upon exercise of common stock purchase warrants issued on March 23, 2020 (the "March Warrants") and (ii) an aggregate of 2,565,114 shares of our Common Stock issuable upon exercise of common stock purchase warrants issued on April 1, 2020 ("April Warrants" together with the March Warrants, the "Warrants") by Anson Investments Master Fund LP ("Anson"), Empery Asset Master, LTD ("Empery Asset Master"), Empery Tax Efficient, LP ("Empery Tax Efficient"), Empery Tax Efficient II, LP ("Emery Tax Efficient II" and together with Anson, Empery Asset Master and Empery Tax Efficient, we collectively refer to the "Selling Stockholders").

35M 15M
May 04, 2020

8-K filing: CHF Solutions, Inc. entered into a placement agency agreement with Ladenburg Thalmann & Co. Inc. for the sale of 3,597,880 shares of common stock at $0.4725 per share and a concurrent private placement of warrants to purchase 1,798,940 shares of common stock at an exercise price of $0.41 per share. ($1.7M proceeds)

35M 15M
Apr 29, 2020

S-1 filing: This prospectus relates to the resale, from time to time, of (i) an aggregate of 4,161,392 shares of our common stock, par value $0.0001 per share (the "Common Stock") issuable upon exercise of common stock purchase warrants issued on March 23, 2020 (the "March Warrants") and (ii) an aggregate of 2,565,114 shares of our Common Stock issuable upon exercise of common stock purchase warrants issued on April 1, 2020 ("April Warrants" together with the March Warrants, the "Warrants") by Anson Investments Master Fund LP ("Anson"), Empery Asset Master, LTD ("Empery Asset Master"), Empery Tax Efficient, LP ("Empery Tax Efficient"), Empery Tax Efficient II, LP ("Emery Tax Efficient II" and together with Anson, Empery Asset Master and Empery Tax Efficient, we collectively refer to the "Selling Stockholders").

35M 15M
Mar 30, 2020

8-K filing: CHF Solutions, Inc. entered into a registered direct offering and concurrent private placement on March 30, 2020, involving the sale of common stock and warrants. ($2.23M proceeds)

21M 8.1M
Mar 20, 2020

8-K filing: CHF Solutions, Inc. entered into a placement agency agreement with Ladenburg Thalmann & Co. Inc. for the sale of 4,161,392 shares of common stock at $0.30 per share in a registered direct offering, and a concurrent private placement of warrants to purchase 4,161,392 shares of common stock at an exercise price of $0.3726 per share. ($1.25M proceeds)

21M 8.1M
Mar 05, 2020

10-K filing | 20.8M shares outstanding

21M 8.1M
Jan 29, 2020

8-K filing: CHF Solutions, Inc. completed a public offering, issuing common stock, preferred stock, and warrants, raising approximately $8.6 million in net proceeds.

15M 8.1M
Jan 23, 2020

S-1/A filing: CHF Solutions, Inc. is offering 1,627,907 Class A Units and 6,511,628 Class B Units at an assumed public offering price of $0.86 per unit.

N/A 8.1M
Jan 23, 2020

S-1/A filing: CHF Solutions, Inc. is offering 1,627,907 Class A Units and 6,511,628 Class B Units at an assumed public offering price of $0.86 per Unit.

N/A 8.1M
Jan 06, 2020

S-1/A filing: CHF Solutions, Inc. is offering 1,627,907 Class A Units and 6,511,628 Class B Units at an assumed public offering price of $0.86 per Class A Unit and $0.86 per Class B Unit.

N/A 1.6M
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