The military said the four members of the Islamic militant group Hamas were sentenced today.
Eitam and Naama Henkin were shot dead as they drove through the West Bank last October. Their four children, including a four-month-old infant, were in the car but survived unharmed. Eitam was an American citizen.
Palestinians have carried out dozens of attacks over the past nine months, killing 32 Israelis and two Americans. Some 200 Palestinians have been killed during the same period, most identified by Israel as attackers.
Netanyahu's office said today that the prime minister will meet Kerry early next week, without providing further details.
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Israeli media has reported that the two will discuss resuming talks with the Palestinians that collapsed two years ago.
Netanyahu faces mounting pressure over the conflict with the Palestinians.
He opposes a French initiative, insisting a deal can only be reached in direct negotiations between the two sides.
Palestinians have welcomed the French initiative.