24/7 Wall St.

The stock market is down Thursday, with the Dow Jones Industrial Average down 0.23%, the Nasdaq down 0.18% and the S&P 500 down 0.16%. Today’s winners include a pharmaceutical company that is getting bought out and a biotechnology company beating earnings expectations. Today’s losers are both pharmaceutical companies — one reported poor results for a drug trial and another reported weak third-quarter earnings.

These are Thursday’s market winners and losers.

Biggest Winners

Shares of DUSA Pharmaceuticals Inc. (NASDAQ: DUSA) are up 38.04% to $7.98 on trading volume of 4.4 million shares. Sun Pharmaceutical Inc. will buy the dermatology company for $230 million. Before Thursday, the 52-week high was $7.33.

Shares of InterMune Inc. (NASDAQ: ITMN) are up 15.32% to $9.41 on trading volume of 2.1 million shares. Although the biotechnology company lost 70 cents a share in the third quarter, it was better than the 90 cents a share that Wall St. analysts had estimated. The 52-week high is $21.90.

Biggest Losers

Shares of Catalyst Pharmaceutical Partners Inc. (NASDAQ: CPRX) are down 60.22% to 58 cents on trading volume of 5.5 million shares. The company announced that its clinical trial for a drug to help treat cocaine addiction failed to meet its goal. The 52-week low is 50 cents.

Shares of Savient Pharmaceuticals Inc. (NASDAQ: SVNT) are down 19.29% to $1.13 on trading volume of 1.5 million shares. The company reported a loss of 56 cents a share, worse than the 48 cents a share Wall St. had expected. The 52-week low is 48 cents.

Samuel Weigley

Follow him on Twitter: SWeigley