 Westport, CT, March 29, 2021 GLOBE NEWSWIRE -- BioSig Technologies, Inc. NASDAQ: BSGM BioSig or the Company, a medical technology company commercializing a proprietary biomedical signal processing platform designed to improve signal fidelity and uncover the full range of ECG and intra-cardiac signals, today announced that the Company had issued a Letter to Shareholders providing highlights on the Companys recent developments and updates. 