Rishi Gupta, Director, Ten Percent Owner at Sientra, holds 3.19M shares in Sientra (Ticker: SIENQ), holds ― shares in Dimension Therapeutics Inc (Ticker: DMTX), holds 3.10M shares in Turnstone Biologics Corp. (Ticker: TSBX). Most recently, Rishi Gupta Bought ― shares of Sientra on Oct 28, 2014 for an estimated value of ―.