Mika Grasso and Katharyn Field resigned from Nuwellis, Inc.'s Board of Directors on March 26, 2026, effective immediately. Both directors cited a pattern of obstruction, exclusion, and failure to provide timely and adequate information, hindering their ability to fulfill fiduciary duties. Specific allegations include lack of meaningful discussion on a proposed acquisition, approval of a "highly dilutive transaction" by an Executive Committee without independent director input, and the appointment of a CFO without Board deliberation. Concerns were raised regarding threatened litigation from EF Hutton and shareholders due to the private placement and alleged breach of exclusivity. Directors reported being removed from all committees without prior agenda and experiencing hostility from management and certain Board members. The Company and continuing Board members disagree with the allegations, characterizing them as containing "numerous errors of fact, misleading speculations and malicious interpretations." Following the resignations, the Board reduced its size from seven to five members, effective March 27, 2026.