Primecap Management Co. CA boosted its position in OSI Systems, Inc. (NASDAQ:OSIS – Free Report) by 2.2% during the 4th quarter, Holdings Channel.com reports. The institutional investor owned 285,200 shares of the technology company’s stock after purchasing an additional 6,210 shares during the period. Primecap Management Co. CA’s holdings in OSI Systems were worth $36,805,000 […]