Ari Nagel

Coney Island, New York, U.S.

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Ari Nagel (1975 or 1976) is an American mathematics professor and a sperm donor who has fathered more than 100 children as of May 2022. He has been nicknamed the Sperminator or the Target Donor, after the American retail corporation in whose stores some of his artificial-insemination donations were performed.