PRIMECAP Management Increases Stake in American Airlines (AAL) to 10.46%

PRIMECAP Management Co. has filed a Schedule 13G/A (Amendment No. 12) regarding its investment in American Airlines Group Inc. (AAL). As of the event date on May 31, 2026, the firm reported owning 69,186,424 shares of common stock, representing a 10.46% ownership stake in the airline. This reflects a significant increase from its previous holding of 48,989,954 shares. The filing indicates that PRIMECAP holds sole dispositive power over all 69,186,424 shares and sole voting power over 68,825,724 shares. The securities were acquired in the ordinary course of business and are not held with the intent to influence or change the control of the issuer. This substantial increase in position by a major investment adviser highlights a strengthened bullish stance on American Airlines. The filing was officially signed on June 5, 2026, by Jorge A. Rodriguez, Deputy Chief Compliance Officer.