A hedge fund proposed that the conglomerate spin off 20 percent of its entertainment unit and use the money to boost its electronics unit.

Trina Solar Ltd., down 52 cents at $5.41

The Chinese solar panel maker cut its first-quarter estimate for module shipments and may revise its full-year shipment outlook.

Edwards Lifesciences Corp., up $4.23 at $71.57

The heart device maker said its board approved the repurchase $750 million more of its outstanding common shares.

Nasdaq

Research In Motion Ltd., down 63 cents at $15.25

The smartphone maker unveiled a cheaper BlackBerry and said that it will offer its BlackBerry Messenger service on rival devices.

Take-Two Interactive Software Inc., up 15 cents at $16.54

The video game publisher reported a profit in its fiscal fourth quarter, reversing a year-ago loss, as revenue more than doubled.

PDI Inc., up 94 cents at $5

The provider of sales and marketing services to the biopharmaceutical industry turned a profit in the first quarter.

SodaStream International Ltd., up $6.79 at $64.08

The maker of carbonated beverage machines told investors it hopes its annual revenue will reach the $1 billion mark by fiscal 2016.

SolarCity Corp., down $4.44 at $31.44

The San Mateo, Calif.-based company, which leases and installs solar energy systems, posted a bigger-than-expected first-quarter loss.