Grifols has agreed to buy the remaining 56% of antibody drug developer GigaGen having invested $35m four years ago.

Duke University's contactless security system developer agrees to list through a reverse takeover, providing an exit to OUP.

Hyundai, Kia and GV are contributing to a $350 PIPE in support of a reverse merger that will value the Maryland and Duke-linked company at $2bn.

Square will purchase a majority stake in music streaming platform Tidal for $297m, four years after SoftBank subsidiary Sprint paid $200m for a 33% stake.

The insurer is set for a reverse merger with Reinvent Technology Partners Z to list on the New York Stock Exchange at a valuation of $5bn.

Marshall Group has exited the provider of anti-money laundering and identity verification software provider in a purchase by AML RightSource.

The financial planning technology developer has been bought by MoneyLion just over a year after raising money from NFP Global.

Salesforce Ventures, NTT Docomo Ventures, DTCP and Telstra Ventures are set to exit the authentication technology developer in an all-stock transaction.

OneTrust has acquired DocuVision, providing exits to investors including Berkeley SkyDeck Fund and Oxford Seed Fund.

Pfizer Ventures could be in line for an exit after AbbVie purchased a buyout option for Parkinson's disease drug developer Mitokinin.