After Hours: Tekmira Pharma shares pop on first U.S. Ebola case

SAN FRANCISCO (MarketWatch) — Tekmira Pharmaceuticals Corp. shares rallied in the extended session Tuesday after the Centers for Disease Control and Prevention confirmed the first case of the Ebola virus on U.S. soil.

Tekmira TKMR, +2.22% TKM, +3.22%  shares jumped 27% to $ 26.82 on heavy volume following a report of the first known U.S. case of the Ebola virus.

Shares of the Canadian drug maker rallied back in August as the Food and Drug Administration began easing barriers for the use of its Ebola treatment, TKM-Ebola.

The drug is being developed by Tekmira and the U.S. Department of Defense’s Medical Countermeasure Systems BioDefense Therapeutics Joint Product Management Office and is in early-stage clinical trials.

Yahoo Inc. YHOO, +0.57%  shares fell less than 0.1% to $ 40.72 on moderate volume after the company disclosed in a Securities and Exchange Commission filing that it received net proceeds of $ 9.4 billion from the Alibaba initial public offering.

Shares of D.R. Horton Inc. DHI, -1.01%  declined 0.2% to $ 20.47 on moderate volume after the home builder announced that Chief Executive Donald Tomnitz was retiring effective Oct. 1, and that the company’s chief operating officer, David Auld, would succeed him as CEO.

Red Hat Inc. RHT, +1.19%  shares rose 0.8% to $ 56.60 after the Linux-software company on moderate volume said it was offering $ 700 million in convertible senior notes due in 2019, and use $ 400 million of the proceeds to buy back stock.

American Science and Engineering Inc. ASEI, -2.59%  shares fell 7.7% to $ 51.12 on moderate volume after being halted at the closing bell. The x-ray inspection systems maker said it was trimming its workforce by 10% to reduce expenses in a volatile global environment.

Synacor Inc. SYNC, +2.69%  shares rose 10% to $ 2.10 on light volume after the company said it was laying off 20% of its workforce, or 70 jobs, and forecast third-quarter revenue of $ 25 million to $ 26 million.


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