$Rigel Pharmaceuticals (RIGL.US)$ – Rigel's stock soared 34%...

$Rigel Pharmaceuticals(RIGL.US)$ – Rigel's stock soared 34% in the premarket after the FDA approved its drug to treat a certain type of leukemia.

$Opendoor Technologies(OPEN.US)$ – The digital real estate platform operator named Chief Financial Officer Carrie Wheeler as its new CEO, replacing company co-founder Eric Wu. Wu will transition into the role of "president of marketplace." Opendoor lost 2.7% in premarket action.

$PagerDuty(PD.US)$ – The cloud computing company’s stock jumped 6.6% in premarket trading after it reported an unexpected quarterly profit.

$Asana(ASAN.US)$ – The work management platform operator forecast weaker than expected current quarter sales, stemming from what it called “macroeconomic cross currents.” Asana slumped 14.4% in the premarket.

$Owens-Corning(OC.US)$ – The building and construction materials maker announced a 50% quarterly dividend increase to 52 cents per share, as well as a buyback program of up to 10 million shares.