Hi motoman,
You may try an item saved search for this. Please follow these steps:
1. Navigate to Lists > Search > Saved Searches > New > Item
2. Under Criteria > Standard, set the following:
a. Type > Assembly/Bill Of Materials
b. Transactions Fields… > Type > Assembly Build
3. Under Results > Columns, click Remove All and set the following:
a. Name > Summary Type: Group
b. Location > Summary Type: Group
c. Transaction Fields… > Date > Summary Type: Maximum
4. Rename the Saved Search and click Save & Run
Note: If you do not use Multi-Location Inventory, just remove the Location field on the results.