Directa Plus PLC (LON:DCTA) has raised gross proceeds of roughly £0.2mln through an open offer and £7.4mln through the placing and open offer, before expenses.
Between them, six directors bought £303,656 worth of shares, mostly founder and chief executive Giulio Cesareo.
The graphene specialist last month agreed to buy a majority stake in one of its oil services partners, Romanian firm Setcar, which Cesareo said was a transformational acquisition.
Total consideration for the deal is €4.1mln, with Directa Plus chipping in 51%, which is pro-rata to its stake once the acquisition completes.
Setcar specialises in oilfield contamination and has been helping Directa Plus develop its Graysorber graphene-enhanced decontamination units since 2014.