Boeing ( BA ) shares surged 6% Tuesday morning after the plane maker reported a fourth-quarter net loss in line with its recently issued preliminary results , closing out a difficult year that saw it burn through billions amid safety investigations and a strike.

The company said it lost $3.86 billion, or $5.46 per share, on revenue that fell 31% year-over-year to $15.24 billion, essentially matching its preliminary results. Boeing also reported operating cash flow of negative $3.45 billion after saying it expected to report negative $3.5 billion.

"My team and I are focused on making the fundamental changes needed to fully recover our company's performance and restore trust with our customers, employees, suppliers, investors, regulators and all others who are counting on us," CEO Kelly Ortberg said.

Tuesday's results were Boeing's first since a nearly two-month strike by its union machinists was resolved in November, with the company looking to ramp up production and deliveries this year after they declined sharply in 2024 .

In addition to the strike, Boeing's difficult year included investigations from regulators, including after a midair detachment of a door plug on an Alaska Airlines ( ALK ) flight last January .

Boeing shares were little changed in premarket trading immediately following the report, but surged after the opening bell, recently trading at $186.49. They had entered the day down almost 15% over the last 12 months.

UPDATE—This article has been updated with the latest share price information.

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