In short, as asked, impossible to say.
"Normandy landings" continued for months after D-day.
If you mean the first day, then find the units, find the company records, and review those for 9 months against the original roster list. Be sure to account for those reassigned and returned to their original unit, eg wounded, ill, etc.
Records were not kept in any manner that allows you to answer.
Most, more than a majority anyway