诺斯罗普·格鲁曼公司 （Northrop Grumman） 授权再投资 30 亿美元进行股票回购，总计 42 亿美元。 Northrop Grumman authorizes $3 billion more for stock buybacks, totaling $4.2 billion.

大型航空航天和国防公司诺斯罗普·格鲁曼公司 （Northrop Grumman） 已批准额外 30 亿美元回购自有股票，使授权总额达到约 42 亿美元。 Northrop Grumman, a major aerospace and defense company, has approved an additional $3 billion for buying back its own stock, bringing the total authorized amount to about $4.2 billion. 回购将根据市场条件和管理层的自由裁量权，通过公开市场或私人交易进行。 The repurchases will be done based on market conditions and management's discretion, either through the open market or private deals. 此举反映了公司对其未来增长的信心。 This move reflects the company's confidence in its future growth.