Maybe this Stock Module is something what you are looking for: http://www.phpro.be/store/paid-magento-modules/stock-monitor-for-magento.html
These are the key features:
List all stock movements in one grid
List order items and indicate impact on stock
View all orders in which a product occurs on the product administration page
View all stock changes for a specific product on the product administration page
If you have further questions, feel free to ask them!
[url=http://amasty.com/out-of-stock-notification.html]Out of Stock
Notification[/url] is a great extension for stock management. With it you’ll definitely stop losing customers. Let customers subscribe to out of stock options of configurable products, see and manage customers’ product subscriptions.
The great thing is you can see in the admin panel to which products customers subscribe.
For further information and live demo, visit module’s page http://amasty.com/out-of-stock-notification.html
I am suggesting you a extension powered by Irzoo ”Low stock report extension” its provide ultimate solution for any website owner who wants to maneuver their inventory efficiently & effectively. The extension notifies the website owner (or admin) when the low stock limit is reached via automated CSV report. This extension alerts you when inventory stock drops down below a specified level so that it can be restocked “on-time”. This extension enables admin to set-up notifications for instances when the quantity of a product goes below the stipulated limit.