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Amex-Backed Corporate Travel Firm to Sell to Startup Backed by General Catalyst, Alpha Wave

Amex GBT competes in the lucrative but fragmented business-travel market.

Photographer: Mark Felix/Bloomberg

A startup backed by General Catalyst Partners agreed to acquire Global Business Travel Group Inc., the travel platform spun out of American Express Co., in a deal worth about $6.3 billion.

Long Lake Management agreed to pay $9.50 per share in cash for the Amex-backed business-travel company, according to a statement Monday, confirming a Bloomberg News report. That represents a 60% premium to its closing price on Friday.