* Sigma Designs Inc says Soros Fund Management reports open market purchase of 44,405 shares of co's common stock at average price of $5.62/share on july 10

* Sigma Designs Inc says Soros Fund Management reports open market purchase of 100 shares of co's common stock at average price of $5.65/share on july 11 Source text for Eikon: [IDnEOL3BWRxs Further company coverage: