after hours movers

Lam Research Corporation (NASDAQ: LRCX) gained more than 8 percent to $78 in Monday's extended session after the semiconductor tool company posted revenue growth of 13 percent for the quarter ended March 29. Fortinet Inc (NASDAQ: FTNT) ticked up more than 7 percent to $37.29 on news that...

Celanese Corporation (NYSE: CE) gained more than 7 percent in late trading Thursday to $62.43 after the technology and materials company posted quarterly results. Mattel, Inc. (NASDAQ: MAT) surged nearly 7 percent in Thursday's after-hours session to $26.95 after the toy company beat first-...

AirMedia Group Inc. (NASDAQ: AMCN) extended its earlier gains in the after-hours session Monday, increasing about 3 percent to $3.60 a share. Shares of the Chinese operator of out-of-home advertising platforms including airport TV screens are up more than 73 percent in the past five trading days...

Pandora Media Inc (NYSE: P) rose 4.5 percent in late trading Friday to $17.77. Privately held competitor Spotify was reportedly close to raising $400 million of new funding that would value Spotify at $8.4 billion. XOMA Corp. (NASDAQ: XOMA) picked up more than 3 percent in Friday's extended...

Extreme Networks, Inc (NASDAQ: EXTR) plunged 15 percent to $2.75 a share in late trading Thursday after the network infrastructure equipment company issued a third-quarter profit warning. The Medicines Company (NASDAQ: MDCO) shares declined more than 7 percent in the after-hours session,...

Regulus Therapeutics Inc (NASDAQ: RGLS) soared over 10 percent in after-hours trading to $17.55 following news that AstraZeneca plc (ADR) (NYSE: AZN) selected its RG-125 as a clinical candidate. Insys Therapeutics Inc (NASDAQ: INSY) spiked up over 5 percent amid a rumor that the company might...

QuickLogic Corp. (NASDAQ: QUIK) gained 17 percent to $2.24 a share in extended trading Wednesday. As of Wednesday's closing, the semiconductor equipment maker's shares were off nearly 40 percent in the year to date and didn't issue news. TCP International Holdings Ltd. (NYSE: TCPI)...

Dyax Corp. (NASDAQ: DYAX) jumped nearly 49 percent to $24.90 a share in late trading Tuesday after the company said a Phase Ib trial of its DX-2930 drug met safety goals and demonstrated statistically significant reductions in attack rates of hereditary angiodema, a rare disease. Tahoe...

Tessera Technologies, Inc. (NASDAQ: TSRA) jumped more than 4 percent in Monday's late trading session to $42.16. Shares of the patent holding company hit a 52-week high last week. Books-A-Million, Inc. (NASDAQ: BAMM) extended its gains in after-hours trading Monday, changing hands recently...

Yahoo! Inc. (NASDAQ: YHOO) +7.5% - Released Q4 EPS, offered Q1 outlook. United States Steel Corp. (NYSE: X) +8% - Reported Q4 EPS. Apple Inc. (NASDAQ: AAPL) +5% - Announced Q1 EPS, Q2 guidance. Electronic Arts (NASDAQ: EA) +5% - Announced Q4 results. Juniper Networks (NYSE: JNPR) +5% -...