Rosetta Resources Inc. (NASDAQ:ROSE) shares increased more than 35% in Monday pre-market trading to $26.20 following news that the energy producer will be bought out by Noble Energy Inc. Noble will acquire Rosetta in an all-stock transaction and will take on Rosetta’s $1.8 billion debt.

Zulily Inc (NASDAQ:ZU) shares rose 21% to $16.20 per share after Alibaba increased its stake in the smaller e-commerce company. Alibaba acquired an additional 9.3% stake in the company, or about 4.8 million shares worth $56 million. This does not include the 11.5 million Zulily shares Alibaba already owned.

Aduro BioTech Inc (NASDAQ:ADRO) shares increased nearly 7% in pre-market trading to $32.98 per share following last week’s press release highlighting two publications in peer-reviewed journals that commended the performance of Aduro’s CDN molecules. The reports showed that the CDN molecules result in substantial regression of tumors and protection against future tumors.

Etsy Inc (NASDAQ:ETSY) shares fell nearly 9% to $20.69 a share following a growing concern over counterfeit goods. The platform to buy and sell handmade goods recently went public but Wedbush downgraded the stock from Neutral to Underperform due to the counterfeit concerns.