Carl Mahr Holding GmbH proposed to acquire remaining 40.85% stake in NanoFocus AG for ?0.7 million on March 4, 2024. Carl Mahr announced its intention to present to the shareholders of NanoFocus, a voluntary public offer to acquire their shares at an offer price of ?0.50 per share. The deadline for Acceptance of the offer should occur with the publication of the Offer document, scheduled for March 8, 2024, will begin and is scheduled to end on April 8, 2024.

As of April 9, 2024, the offer period has extended to April 15, 2024.