Don Ching Trang Chu, the “expert-network” executive arrested this week

Don Ching Trang Chu, the “expert-network” executive arrested this week on insider-trading charges, had a roster of Asia-based employees of North American technology companies to feed information to clients, court documents show.

Chu, who lives in the Somerset section of Franklin Township, worked for Primary Global Research of Mountain View, California. He offered to set up hedge-fund manager Richard Choo-Beng Lee with employees of Sierra Wireless, Broadcom and Atheros Communications when he planned to travel to Taiwan in 2009, U.S. prosecutors said in a criminal complaint filed this week in Manhattan. Lee, co-founder of Spherix Capital, was secretly cooperating with the government after being ensnared in the Galleon Group insider-trading probe.