The company said it bought the 5% stake from former UK-based Chelsea footballer Didier Drogba - a Cote d'Ivorian.
Endeavour granted Drogba's DYD International 1.07 million common shares which were equal to about US$15 million (C$20 million), based on the signing reference share price of C$18.50 a share.
The transaction was signed on December 21 and closed on Thursday.
As a result of the transaction, Endeavour now owns 85% of the Ity mine, the government of Côte d'Ivoire 10% and state-owned mining company Sodemi the remaining 5%.
The company's stock (TSX:EDV) is down 11.22% over the past 12 months, and closed down 0.32% or C7c on Friday at $21.67, capitalising the miner at $2.34 billion.