Technically speaking, the answer is no - especially in early stages. However the real question is "Can a person be balding without them detecting any increased shedding?" That answer is yes. Whether or not the person actually detects they are shedding is quite variable. But androgenetic alopecia is associated with a slight increase in the proportion of telogen hairs.
Yes, you can lose hair from recession without shedding and also lose hair volume as well without shedding