Hi FunCollectibles
From the dashboard this is not possible. But there is an option using our premium add-on ATUM Export.
With this add-on you will be able to export almost any kind of data in your site, in your case, products with negative stock. Select the Product data template or create your own one, and in 'Stock' field put this:
By doing this, just the products with negative stock will be exported.
I leave you here the link to the documentation where you will find useful info about how it works: https://forum.stockmanagementlabs.com/t/atum-export-pro-documentation
And the link to the demo site in case you want to try the free trial: https://stockmanagementlabs.com/addons/atum-export-pro/
Best Regards,
Andrea.