The departing executives, who also include the exchange's global HR head, will receive termination payments, NYSE Euronext said in a regulatory filing.
NYSE is being bought by ICE, the Atlanta-based derivatives market and clearing house operator, in a deal valued at about $10.6 billion.
Geltzeiler, who has worked with NYSE for five years, will join home-security company ADT Corp (ADT.N) as CFO in November, ADT said on Monday.
Shares of NYSE Euronext closed at $44.49 on the New York Stock Exchange on Monday. They have risen more than 6 percent in the last three months.
(Reporting by Tanya Agrawal and Anil D'Silva in Bangalore; Editing by Maju Samuel)