G4S Limited (Allied Universal Topco Inc 100% controlled post-April 2021 USD 5.1 billion take-private) faced the April 2021 USD 5.1 billion Allied Universal-G4S plc UK take-private (closed April 2021 following 2020-2021 bidding war between Allied Universal and GardaWorld for G4S plc, Allied Universal won with GBP 245p/share, GardaWorld walked away) affecting UK institutional minority shareholders amid global security sector consolidation pressure.