Ferrellgas, Prothena Lead Friday's After-Hours Movers

Ferrellgas Partners L.P. FGP rose more than 4 percent in late trading Friday to $23.30 a share. The Overland Park, Kansas propane retail distributor didn't issue any news.

Navios Maritime Partners L.P. NMM increased 4 percent in the extended session to $10.08.

The company, whose shares were off earlier this week on lower earnings estimates from analysts, issued its 2014 annual report Thursday.

Vivus Inc. VVUS was changing hands at $3.09, up 4 percent from its closing price Friday. The development-stage biopharma company didn't offer any news.

Prothena Corp. PLC PRTA gained 4 percent in after-hours trading Friday to $41 a share. On Thursday the company posted promising results for its prospective treatment for Parkinson's disease.

Aurico Gold Inc. AUQ picked up more than 3 percent after hours Friday, trading at $3.05 recently. Gold stocks were broadly higher during the day as prices for the metal notched their strongest weekly gain in two months.

For similar reasons, Seabridge Gold Inc. SA gained nearly 3 percent in late trading Friday to $6.46 a share.

GFI Group Inc. GFIG fell more than 6 percent during the extended session recently to $5.80 a share.

The institutional trading services company said Thursday it will voluntary delist its stock and deregister its shares.

Eagle Bulk Shipping Inc. EGLE fell more than 4 percent to $9. The company's Chief Executive Sophocles Zoullas abruptly resigned earlier this month to be succeeded by Stanley Ryan.

Shares of Eagle hit a 52-week low Tuesday.

Petroleo Brasileiro Petrobras SA PBR declined more than 2 percent to $5.46 in late trading Friday. The stock, battered by a recent corruption scandal, closed up earlier more than 6 percent after the dollar weakened against the euro, suggesting potentially higher oil prices.

SunCoke Energy Partners LP SXCP fell a further 2 percent in extended trading to $21 after closing down nearly 5 percent Friday. The Lisle, Illinois-based maker of coke for steel mills was urged last month by a major investor to seek a sale.

Its shares hit a 52-week low Tuesday.