Anyone with access to a Summary can download a copy of the raw transcript.
To download a raw transcript of your Summary:
Click on the event in your Google Calendar to access the Xembly Extension
If your Xembly Extension doesn’t pop up automatically, open the Extension manually, locate the event in your Feed, and click "View Summary."
Click on the ‘Download’ icon in the top right corner of your Summary
Select “Download transcript”
Once downloaded, a raw .txt copy of the transcript will be saved to your computer. You can edit and share the transcript as you please using that file.