United Airlines, Dyne Therapeutics fall; Lucid Group, Century Aluminum rise, Monday, 3/25/2024

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NEW YORK (AP) — Stocks that traded heavily or had substantial price changes on Monday: Boeing Co., up $2.56 to $191.41. Dave Calhoun will step down as CEO as the troubled plane maker deals with manufacturing and safety problems. Intel Corp., down 74 cents to $41.83. China is reportedly looking to reduce reliance on chips from Intel and other chipmakers. United Airlines Holdings Inc., down $1.58 to $44.89. Federal regulators are tightening their oversight of the airline, following a series of recent safety problems. Lucid Group Inc., up 15 cents to $2.92. The electric vehicle maker announced a $1 billion investment from Ayar Third Investment. Dyne Therapeutics Inc., down $2.18 to $26.06. The muscle disease treatment developer said CEO Joshua Brumm resigned. Century Aluminum Co., up 66 cents to $13.88. The U.S. is investing $500 million in the aluminum producer to build an aluminum smelter. Cleveland-Cliffs Inc., up 18 cents to $21.44. The U.S. awarded up to $575 million to the mining company’s decarbonization projects. United Therapeutics Corp., up $6.36 to $244.26. The drugmaker announced a $1 billion stock buyback program.