X0202 SCHEDULE 13G/A 0002052389 XXXXXXXX LIVE 1 Common Stock, par value $0.0001 per share 09/17/2026 0001506492 Nuwellis, Inc. 67113Y801 12988 Valley View Road Eden Prairie MN 55344 Rule 13d-1(c) Orca Capital AG 2M 180913.00 0.00 180913.00 0.00 180913.00 N 4.9 CO All ownership percentages set forth in this Schedule 13G are calculated based upon an aggregate of 3,647,264 shares of common stock outstanding as of August 7, 2026, as provided in the Issuer's Final Prospectus filed pursuant to Rule 424(b)(3) with the Securities and Exchange Commission, dated as of August 26, 2026, and excludes 216,052 shares of common stock issuable upon the exercise of common warrants, subject to the 4.99% Blocker (defined below). Pursuant to the terms of the common warrants, the Reporting Person cannot exercise any of the warrants to the extent the Reporting Person would beneficially own, after any such exercise, more than 4.99% of the Issuer's outstanding common stock (the "4.99% Blocker"). Nuwellis, Inc. 12988 Valley View Road, Eden Prairie, MN 55344 Orca Capital AG Sperlring 2 85276 Hettenshausen Deutschland Germany Y 180,913 4.9% 180,913 0 180,913 0 N Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11. Orca Capital AG /s/ Thomas Konig 09/18/2026