Verisk, Parsons fall; PRA Health Sciences, Upwork rise

NEW YORK — Stocks that traded heavily or had substantial price changes Wednesday:

Flowserve Corp., down 80 cents to $38.75.

The maker of pumps and other equipment for the oil industry gave investors a disappointing revenue forecast for the year.

PRA Health Sciences Inc., up $23.93 to $151.66.

Irish pharmaceutical research company Icon is buying North Carolina-based rival PRA in a deal worth $12 billion.

Upwork Inc., up $1.79 to $53.36.

The online freelance marketplace reported a surprise fourth-quarter profit.

Parsons Corp., down $3.02 to $36.77.

The software and infrastructure service provider’s fourth-quarter profit and revenue fell short of analysts’ forecasts.

Owens & Minor Inc., up $7.43 to $32.86.

The medical supplies distributor handily beat Wall Street’s fourth-quarter profit forecasts.

Six Flags…