Ciena Corporation (NYSE:CIEN – Get Free Report) hit a new 52-week high on Tuesday . Wall Street Zen raised Ciena from a “hold” rating to a “buy” rating in a research note on Friday, September 5th. Insiders have sold a total of 39,769 shares of company stock worth $3,769,163 over the last quarter. Atreides Management LP bought a new stake in shares of Ciena in the 2nd quarter worth approximately $102,705,000. Nuveen LLC bought a new stake in shares of Ciena in the 1st quarter worth approximately $70,065,000.