No observed cheques. Organisations of this type rarely announce deals, so this says nothing about their activity.
From their own site: “Wenn uns eine Idee überzeugt, investieren wir als Founding Business Angels im (Pre-)Pre-Seed unsere Zeit, Geld, Expertise, Netzwerk, Nerven, …”
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.