Codexis Shares Gain on Agreement With Undisclosed Drug Innovator

By Connor HartShares of Codexis climbed after the company said it reached an agreement with an undisclosed siRNA drugmaker.The stock rose 4%, to $1.37, in premarket trading Monday. Through Friday's close, shares are down 18% year to date.Under the agreement, Codexis said it will use its ECO Synthes…