NEW YORK -- Stocks that moved substantially or traded heavily on Monday:
Galapagos NV, up $25.01 to $170.76
Drug developer Gilead Sciences is investing $5 billion in the biotechnology company.
Callon Petroleum Co., down $1.02 to $5.38
The oil and gas company is buying Carrizo Oil & Gas for $3.2 billion in a cash-and-stock deal.
Circor International Inc., down $5.35 to $36.97
Crane says it will cease efforts to buy the industrial products maker, absent "substantive engagement" this week.
Symantec Corp., down $2.73 to $22.84
The security software firm and chipmaker Broadcom ended negotiations over a possible deal, according to media reports.
Boeing Co., down $3.72 to $361.61
The airplane maker's 737 Max could be grounded into next year, according to media reports.
Bank of America Corp., down 23 cents to $29.22
Banks fell broadly as they prepare to lead the first round of corporate earnings reports this week.
Omnicell Inc., up $5.62 to $74.23
The health care company bounced back after a GlassHouse Research report criticized its financial practices.
Facebook Inc., down 96 cents to $203.91
The social media company faces congressional hearings over its proposed cryptocurrency Libra this week.