 Starboard Value said on Friday that it sold nearly three quarters of its stake in eBay Inc during the second quarter when the activist investment firm also ended its proxy fight at the ecommerce company. At the end of June, Starboard owned 2,090,000 eBay shares, down 73 from the 7,920,000 it owned at the end of the first quarter, according to a regulatory filing the firm made on Friday. The filing did not say when Starboard cut its stake. 