I can't see it in the notables and probably old hat but posting it anyway.

Exclusive: Space firm founded by billionaire Paul Allen closing operations - sources

June 1, 2019

https://www.reuters.com/article/us-space-exploration-stratolaunch-exclus/exclusive-space-firm-founded-by-billionaire-paul-allen-closing-operations-sources-idUSKCN1T12FD

'The company, a unit of Allen’s privately held investment vehicle Vulcan Inc, had been developing a portfolio of launch vehicles including the world’s largest airplane by wingspan to launch satellites and eventually humans into space.

Allen, who founded Seattle-based Stratolaunch in 2011, died at age 65 in October.

Vulcan has been exploring a possible sale of Stratolaunch’s assets and intellectual property, according to one of the four sources and also a fifth person.

A representative of Stratolaunch Systems Corp initially said the company did not “have any news or announcements to share at this time.” Later, she said by phone: “Stratolaunch remains operational” while declining further comment.

Efforts to reach Vulcan Inc for comment were not successful.'