A memo was cited by Reuters as stating that Cristerna and Ventresca will report to Jeff Urwin, global head of investment banking.
The appointment was also confirmed by a spokeswoman for the bank, the news agency reported.
Cristerna was serving as head of M&A for Europe, Middle East and Africa, while Ventresca was head of M&A for North America.
With 20 years of working experience at JP Morgan, Cristerna has been part of several cross-border transactions, including DE Master Blenders’ $9.8bn spin-off from Sara Lee, the merger of Iberia and British Airways and Inbev’s acquisition of Anheuser Busch in 2008.
Serving at JP Morgan for the past 25 years, Ventresca was most recently involved in Virgin Media’s Liberty Global deal, as well as United Technologies Corp’s acquisition of Goodrich, Dollar Thrifty’s sale to Hertz and Ingersoll Rand’s reported spin-off of its security business.