Terminally ill: Pharmaceutical company Novavax plunged 85 percent, to $1.29 Friday after the company said its experimental vaccine failed in late-stage clinical testing. Novavax has no active products on the market and this drug was their furthest in development.

Line troubles: Energy Transfer Partners fell 4.2 percent, to $37.51. Monday following the federal government's decision the previous week to temporarily halt its $3.8 billion pipeline project following protests from the Standing Rock Sioux tribe. Shares closed the week at $36.37.

Good bounce: Goodyear Tire & Rubber climbed 4 percent to $31.95 Thursday after the company boosted its dividend and said it plans to return $4 billion to shareholders over the next few years. The stock closed the week at $32.42.

Raptor roars: Drugmaker Raptor Pharmaceutical Corp. climbed 20 percent, to $8.95 Monday after Horizon Pharma said it will buy the company for $9 per share, or about $768 million. Raptor shares closed the week at $8.99. Horizon, which rose 7 percent to $18.46 Monday, closed at $19.28 Friday.

Text me back: Software company Open Text climbed 8.5 percent, to $64.84 Monday after it said it will buy a unit of Dell EMC for $1.62 billion. Open Text shares closed Friday at $64.77.

Chip chip, hurrah: Chipmaker Intersil's shares rose 9 percent to $21.58 Tuesday after it said it had agreed to be bought by Renesas of Japan. Renesas' offer values Intersil at $22.50 per share. The stock closed Friday at $21.71.