You can now use your LinkedIn company page to notify your employees of an update. According to LI:
As a LinkedIn Page admin, let your employees know when you’ve posted an update on your organization’s Page. The effectiveness of your notifications can be tracked through update analytics.
To notify your employees:
- Post an update on your Page.
- Click the More icon on the correct update.
- Select Notify employees of post.
An admin can notify employees once every seven days, per update. Employees will be notified that your organization has shared a post with them through their notification updates.
Updates will be marked with Employees notified when viewing organic impressions or update engagement analytics. Learn more about update analytics.