From any comic page you will see a Contributions menu at the top, open this menu and click Submit Sale Data. From here, simply fill out the form in accordance with our Sales & Market Data guidelines.
Requirements for Sales Data:
Must be a completed sale of a single comic. No lots, bundles, etc.
Grades are not permitted for Raw comics. This is too subjective.
If the sale cannot be verified, it does not belong in our database.
Signed comics are not included as they are outliers.
eBay "Best Offer Accepted" with final offer prices unknown are not permitted.
Reprint sales must be associated to their specific variant listing, not the main cover.