NEW YORK (Reuters) - Elliott Investment Management's managing director Jesse Cohn said on Wednesday he believes e-commerce platform Etsy ( ETSY ) will generate "significant, multi-year upside." Elliott, one of the world's most prominent investors, has a 13% economic stake in Etsy ( ETSY ), including both common shares and swaps, a person familiar with the matter told Reuters in February. At the Sohn Conference, in New York, Cohn said he sees room for "product engagement and monetization opportunities," comparing Etsy ( ETSY ) to Pinterest ( PINS ), another company to which Elliott appointed a board member in 2022. Cohn said Etsy ( ETSY ) has potential to add more buyers and increase the amount of money they spend on the platform, for instance. In February, Etsy ( ETSY ) appointed Elliott's portfolio manager Marc Steinberg to its board.