The board has recommended Touchstone shareholders accept the $641m all-shares offer from commercialisation peer IP Group before Touchstone ceases trading on Aim on December 11.

Touchstone Innovations, the UK-based commercialisation firm acquired by its peer IP Group for approximately £490m ($641m), today confirmed its shares would cease trading on stock market Aim on December 11.

Shareholders have been told to accept the bid –2.2178 IP Group shares per Touchstone share – if they have not yet done so.

The offer became unconditional after IP Group gained firm acceptances for approximately 97% of Touchstone’s share capital in October 2017, enough to mount a hostile takeover.