AAR Corp's stock experienced a significant after-hours decline of 6.67% following the release of its fourth-quarter financial results.

The aerospace and defense company reported adjusted earnings per share of $1.27 for the quarter, which fell short of the analyst consensus estimate of $1.38. This represents a miss of approximately 7.97%. Despite the earnings shortfall, the company's quarterly sales of $928 million surpassed the estimated $868.54 million, indicating strong top-line growth but potential concerns about profitability or margins.

The market's negative reaction in the extended session suggests investor disappointment with the earnings performance, overshadowing the positive sales results.