Free Redistribution
The license shall not restrict any party from selling or giving away the software as a component of an aggregate software distribution containing programs from several different sources. The license shall not require a royalty or other fee for such sale.
https://statamic.com/
Claims to be open source in various places as described in this Reddit post: https://www.reddit.com/r/opensource/comments/1f1xhon/is_statamic_open_source/
The project uses a custom license which limits use, modification and redistribution: https://github.com/statamic/cms/blob/e7fffc011762b6a14e74e29c46761b201d6c0bf8/LICENSE.md
Has been raised here:
https://github.com/statamic/cms/discussions/10706