1st attempt, did this:
{{ leads.pgDate | date:'MM/dd/yyyy' }}
I've also tried:
" | date:"MM/dd/yyyy": 'UTC' "
2nd attempt, went to leadsCtr.js and found
$scope.leadsGridOptions = { 
  columnDefs: [ 
    {
      field: 'expected',
      displayName: 'Expected Close Date', width: 150, type: 'date',
cellFilter: 'date:\'MM/dd/yyyy\'' 
    }
  ]
}
Added 'type:''date'' and changed cellFilter from \'sort\'
Observations:
displayName: 'Expected Close Date' BUT
the date header in HTML is 'Date of Purchase' - that's why the 2nd attempt didn't work. Also, cellFilter is being overridden, that addition didn't alter anything either.
{{leads.pgDate.toString()}} 
adding toString didn't change anything- Maybe date is a string?! 
New Problem:
Cannot find the object that ng-repeat is using to populate the fields to see if the date really is a string and I can parse it.
Questions:
If date is coming in as String, will the angular filter not work? Is there anyway to override {{inside the HTML}} ? 
Answer:
Used Jimbrooism's suggestion. The wrapper is converting the value back into a date format and the filter works.
 
     
     
     
     
    