By Reuters Staff 2 Min Read TOKYO, May 31 (Reuters) - Japanese shares closed lower on Monday, as investors locked in gains after a recent rally, although the losses were limited by a positive finish from local drugmakers. The Nikkei share average ended 0.99% lower at 28,860.08, while the broader Topix fell 1.26% to 1,922.98. The Nikkei had jumped 2.1% on Friday to close at the 29,000-level for the first time since May 10, while Wall Street finished with marginal gains. “There aren’t any reasons to buy Japanese stocks at the moment except that the vaccine rollouts are proceeding well. That is helping cap the declines in the session,” said Yutaka Miura, senior technical analyst at Mizuho Securities.