25 Stocks Moving in Monday's Pre-Market Session

Gainers

• Alder BioPharmaceuticals, Inc. ALDR rose 80.9% to $18.20 in pre-market trading after Danish company Lundbeck announced plans to acquire Alder BioPharmaceuticals in a deal valued at around $2 billion.
• SemGroup Corporation SEMG rose 64% to $16.85 in pre-market trading after Energy Transfer announced plans to purchase SemGroup in a $5 billion deal.
• Yuma Energy, Inc. YUMA shares rose 32.5% to $4.40 in pre-market trading after gaining 5.06% on Friday.
• Wins Finance Holdings Inc. WINS rose 28.5% to $21.82 in pre-market trading.
• California Resources Corporation CRC shares rose 24% to $14.65 in pre-market trading.
• W&T Offshore, Inc. WTI rose 23.3% to $5.71 in pre-market trading.
• Centennial Resource Development, Inc. CDEV rose 19.7% to $5.2799 in pre-market trading.
• Chesapeake Energy Corporation CHK rose 17.7% to $2.09 in pre-market trading.
• Extraction Oil & Gas, Inc. XOG rose 17.7% to $3.80 in pre-market trading.
• Whiting Petroleum Corporation WLL rose 17.5% to $8.85 in pre-market trading.
• Unit Corporation UNT shares rose 16.9% to $3.88 in pre-market trading.
• Nabors Industries Ltd. NBR rose 16.1% to $2.67 in pre-market trading.
• Aimmune Therapeutics, Inc. AIMT rose 15.1% to $28.39 in pre-market trading after the company disclosed that the FDA Allergenic Products Advisory Committee voted to support the use of Aimmune’s PALFORZIA™ for peanut allergy.
• Southwestern Energy Company SWN rose 13% to $2.52 in pre-market trading.
• Continental Resources, Inc. CLR rose 12.9% to $36.25 in pre-market trading.
• Cimarex Energy Co. XEC rose 9.2% to $52.37 in pre-market trading.
• Pioneer Natural Resources Company PXD rose 8.2% to $146.50 in pre-market trading.
• Northern Oil and Gas, Inc. NOG rose 7.9% to $2.19 in pre-market trading.

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Losers

• New Relic, Inc. NEWR shares fell 15.9% to $49.14 in pre-market trading after the company lowered its 2020 sales guidance and announced changes in management.
• Mallinckrodt plc MNK shares fell 7.3% to $3.06 in pre-market trading after rising 10.37% on Friday.
• Construction Partners, Inc. ROAD shares fell 5.4% to $14.88 in pre-market trading after reporting a 5 million share common stock offering.
• Francesca's Holdings Corporation FRAN shares fell 5% to $17.23 in pre-market trading after gaining 28.47% on Friday.
• American Airlines Group Inc. AAL fell 3.8% to $28.80 in pre-market trading.
• Overstock.com, Inc. OSTK shares fell 3.5% to $24.05 in pre-market trading after dropping 6.70% on Friday.
• SmileDirectClub, Inc. SDC shares fell 2.9% to $18.15 in pre-market trading after rising 12.06% on Friday.