No observed cheques. Organisations of this type rarely announce deals, so this says nothing about their activity.
From their own site: “Aethos Holding SA is a privately held company based in Luxembourg that serves as a closed investment vehicle targeting new technologies in Luxembourg, France, Belgium, Austria, and the USA since 2012.”
An announcement gives the size of the round, not the size of this investor's cheque. The only rounds that imply a cheque are those where they were the sole named investor.
Something wrong here? Tell us — corrections are free and need no account.