Using Yahoo Finance's undocumented API you can get a lot of information about a particular stock. If you want to get the Major Holders breakdown, to see what % of the shares are owned by insiders and institutions, you can request the module
You can try it out below:
Yahoo Finance Major Holders Breakdown
Please fill in any necessary fields and click Submit.
View the API response, get a live Google Sheet dashboard, or export to CSV
Get Google Sheetto get a live connection for this data to Google Sheets, which you can schedule easily.