WALL STREET PAYDAY: Banks could make more than $100 million in fees from the massive United Technologies acquisition (UTX)

Anne-Marie Sorvin-USA TODAY Sports

United Technologies announced its $30 billion acquisition of Rockwell Collins Monday, in a deal that would create one of the largest airline-equipment suppliers in the world. 

The final $140-a-share price tag that United Technologies paid represents an 18% premium over the $119 Rockwell was trading at before deal rumors surfaced in early August, according to Reuters. 

Wall Street bankers are set to make a fat payday of as much as $105 million on the mega-deal. 

Morgan Stanley will haul in an estimated $35 million to $45 million for advising United Technologies, according to Jeffrey Nassof, director of consulting firm Freeman & Co.

JPMorgan and Citigroup will share an estimated $45 million to $60 million for advising Rockwell Collins. 

The airplane parts makers, which spent the last month trying to reach a deal, are expected to have combined sales of nearly $70 billion in 2017.

The deal is expected to close in the third quarter of 2018. 

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