Tivic Health Systems, Inc. (NASDAQ:TIVC) shares are surging on heavy trading volume, with over 19 million shares traded in the session, compared to the 100-day average of 439 thousand shares. This comes after the company announced that its ClearUP bioelectronic sinus pain relief device will be offered on AmerisourceBergen Marketplace. Despite the surge, the stock is still down by more than 30% over the last 30 days.