50 Cent, born Curtis Jackson, invested in Glacéau in 2004 and holds an estimated 10% in the company, according to anonymous sources familiar with the details of the deal.
The Coca-Cola Company acquired Energy Brands on May 25 for $4.1 billion dollars in cash.
The rapper's financial windfall from the sale was estimated to be $400 million, when AllHipHop.com broke the news of the purchase of Energy Brands, although an exact dollar amount was never definitively stated.
While 50 Cent's actual income from purchase of Glacéau is unknown, The New York Post reported that New York Mets baseball player David Wright made over $20 million dollars from his 0.5% stake, a figure Wright denied.
Wright, who plays third base for The Mets, denied the figures, but did not elaborate on the amount of money he earned from the sale either.
As details of the sale emerge, a representative for Energy Brands allegedly stated that "any report stating personal figures of ownership in our company are erroneous at this time" and refused to release details of the transaction, which is still subject to regulatory approval.
Chris Lighty, 50 Cent's manager confirmed that the rapper holds equity across the board in the company, though he was not at liberty to comment on the the details of the sale.
"We have a nondisclosure agreement," Lighty told AllHipHop.com. "He has equity. I am not telling anyone what we made, but it is very substantial and this was a great deal for everyone."
In related news, 50 Cent will perform one show in London this July, where he will showcase tracks from his upcoming album Curtis, which will hit stores on Sept. 4.