The International Securities Exchange has appointed Stanley Choung to its board of directors effective immediately. Choung is a managing director at Morgan Stanley's institutional equity division and he will serve as an industry director for ISE's primary market makers. He replaces Sean Flynn of Timber Hill who is retiring. In addition, Mark Dehnert, a Goldman Sachs partner responsible for the quantitative equities trading businesses in the bank's securities division, was re-elected to the ISE board as a competitive market maker representative. Slade Winchester, head of US and international business development, technology and operations for Citigroup Derivatives Markets was also re-elected to the firm's board as an EAM representative. The following non-industry directors were also re-elected: Michael Kuhn, chief information officer of Deutsche Börse AG; Michael Monaco, senior managing director of Conway Del Genio Gries; Joseph Stefanelli, a non-industry director of ISE since 2007, and; Kenneth Vecchione, chief operating officer of Western Alliance Bancorp. Gary Katz, president and chief executive officer of ISE, was re-elected as ISE's chief executive officer director.