Magento 2 : How to move sku and instock
Keep below code inside xml file body tag in your xml file,
app/design/frontend/{Vendor}/{themename}/Magento_Catalog/layout/catalog_product_view.xml
<move element="product.info.type" destination="alert.urls" before="-"/>
<move element="product.info.stock.sku" destination="alert.urls" before="-"/>