After-hours buzz: Juniper, Alcoa, Marathon & more

Pedestrians walk past the New York Stock Exchange (NYSE) in New York.
Michael Nagle | Bloomberg | Getty Images
Pedestrians walk past the New York Stock Exchange (NYSE) in New York.

Check out the companies making headlines after the bell Monday:

Technology company Juniper Networks saw shares sink after it slashed earnings expectations for the March quarter. The networking company expects revenue of $1.09 billion to $1.1 billion, the company said in a statement, missing the prior guidance of $1.15 billion to $1.19 billion, based on weaker demand from its enterprise division. Earnings were also chopped down to between 35 cents per share and 37 cents per share, below the prior range of 42 cents to 46 cents per share, the company said Monday.

Shares of Alcoa edged lower after the aluminum and lightweight metals maker said it would cut 400 jobs, and was considering cutting up to 1,000 more, because of market conditions. The deep new job cuts come on top of 600 positions that were trimmed in the first quarter as Alcoa tries to strengthen its cost structure, according to a company statement.

The manufacturing bellwether reported mixed results from the first fiscal quarter, with earnings of 7 cents per share on $4.95 billion in revenue. That's higher profits but lower sales than the 2 cents per share on $5.14 billion in revenue predicted by a consensus estimate from Thomson Reuters.

Marathon Oil also saw shares rise after it announced the $950 million sale of assets in Wyoming, Colorado, West Texas and the Shenandoah discovery in the Gulf of Mexico. The sale brings total divestitures to about $1.3 billion since last August, according to Reuters.

Fellow energy company Lucas Energy's shares popped in extended trading after the company announced additional financing last week from an institutional investor. The Houston-based crude oil producer's stock closed more than 14 percent higher in regular trading as oil closed above $40 per barrel for the first time in two weeks.

Shares of Spirit Realty were lower in light trading after the real estate investment trust announced a 27 million-share stock offering to pay down loans. The company, which focuses on free standing single-tenant commercial real estate, said it would eventually like to draw new credit to fund potential acquisitions.

— CNBC's Jacob Pramuk and Reuters contributed to this report.