Use slurp mode:
o --slurp/-s:
Instead of running the filter for each JSON object
in the input, read the entire input stream into a large
array and run the filter just once.
$ jq -s '.' < tmp.json
[
{
"name": "John",
"email": "john@company.com"
},
{
"name": "Brad",
"email": "brad@company.com"
}
]