Just last week the Genzyme sign came down and it was replaced with a sign from LabCorp at 655 E. Huntington Drive. The permanent sign replacement will be discussed at this week's Development Review Committee.
This business shuffle actually goes back to 2010, when LabCorp bought the genetics unit from Genzyme.
Side Note: According to their web site, LabCorp is hiring at its Monrovia location.