In LinkedIn Impressions section we show how many times your company page's posts have been viewed - we display impressions and number of reached users. We show these metrics on daily basis.

Impressions is the number of times your posts were visible for at least 300 milliseconds with at least 50% in view on a (signed in) member’s screen.

Reached users is the number of times your posts were shown to unique (signed in) members (excl. revisits).