Brief: Tempest Security Q1 EBITDA SEK 4.6 Mln
May 21 (Reuters) - Tempest Security AB TSEC.ST: Q1 NET TURNOVER INCREASED BY 11% TO SEK 145.9 MILLION (131.6 MILLION) Q1 EBITDA WAS SEK 4.6 (1.6) MILLION Source text: ID:nBQNshwkt Further company coverage: TSEC.ST (Gdansk Newsroom) ((gdansk.newsroom@thomsonreuters.com;))