NEW YORK, Jan. 30, 2021 /PRNewswire/ — Halper Sadeh LLP, a global investor rights law firm, continues to investigate the following companies: National Holdings Corporation (NASDAQ: NHLD) concerning potential violations of the federal securities laws and/or breaches of fiduciary duties relating to its sale to B. Riley Financial, Inc. for $3.25 per share. If you are a National […]
