Alphabet, Facebook, DuPont and more

Check out the companies that make dinner headlines Monday:

Alphabet, Facebook – Alphabet shares fueled more than 6% after the news agency Justice Department had drafted an antitrust process against Google. According to reports, the probe will look at Google search methods and other businesses. Facebook shares also fell 8% among concerns in the broader technology sector that were subject to major government scrutiny.

Amgen, Mirati Therapeutics ̵[ads1]1; Stocks in the biotech company Amgen jumped 4.1% after results from a cancer study examining Amgen's gene therapy showed significant reduction in tumor size in advanced lung cancer patients. Promising results also drove the shares in Mirati up by 33.4%, as biotechnology also develops a substance that targets the same gene mutation.

DuPont – Shares in DuPont jumped 9.4% after a Morgan Stanley analyst started covering the chemical with an overweight rating. The analyst said it sees value in DuPont, regardless of whether it becomes a "true multinational" company or keeps the business separate.

Teva Pharmaceutical Industries – An Oppenheimer analyst upgraded Teva to leave the job, citing better basic and "in line" executive management. Inventories increased by 3.2%.

Waste management – Waste management increased more than 1% after an analyst from RBC Capital Markets upgraded the stock to outperform the market. "We see that waste management delivers large-scale earnings growth, driven by sustained organic growth rates," the analyst said in a note.

Cypress Semiconductor – Cypress Semiconductor increased more than 24% news that the German company Infineon will buy the chip maker $ 23.85 per share. Sales value Cypress of $ 10.06 billion. Infineon's share price fell 9% Monday on the news.

Humana – Shares in Humana got 1.2% after a SEC filing revealed that the company is not interested in merging with the health insurance company Centene. This agreement would have deviated from Centes' plans to buy WellCare Health Plans. Centers shares dropped more than 9%.

Nektar Therapeutics – Biotechnology stocks rose nearly 10% after the company launched positive trial results for bempegaldesleukin, a drug that aims to increase the cancer patient's immune system.

Advanced Micro Devices – Advanced Micro Devices got 1.2% after the chip maker announced a multi-year deal with Samsung to license its custom graphics intellectual property for use in their mobile devices. Samsung will pay AMD license fees and royalties.

Boeing – Aviation maker shares Boeing fell more than 1% after the Federal Aviation Administration said Sunday that more than 300 Boeing 737 jets may have defective parts. The FAA said it is forcing airlines to remove and replace any aircraft parts affected. The FAA said as many as 148 parts could be "prone to premature failure or cracking."

CNBCs Maggie Fitzgerald and Nadine El-Bawab contributed to this report.