On May 21, Firefly Aerospace fell 5.82% in regular trading, trading at $41.99/share, with trading volume of approximately $33.49 million, resuming the downward pressure that briefly paused during the prior session's rebound.

On the news front, the decline was driven by two primary factors. First, the Aerospace & Defense sector weakened broadly, with sector peer Rocket Lab USA falling 4.77%, Redwire Corp dropping 6.70%, Intuitive Machines declining 3.98%, and Boeing losing 1.91%, creating significant sector-wide drag on the stock. Second, the company previously filed a Form 144 disclosing an insider's proposed securities sale plan, and this selling signal continues to suppress market sentiment.

Under the dual pressure of sector weakness and persistent insider selling concerns, profit-taking from the earlier rebound accelerated, pushing the stock into retreat. The stock had previously surged over 8% on May 18 as part of a technical oversold recovery before encountering renewed selling pressure.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)