Kojima Productions was not taken over by Sony.
Or from Microsoft.
Or anyone.
This confirmed Hideo Kojima itself via Twitter.
After giving Sony’s possible clues to a takeover of the studio behind Death Stranding, the legendary game designer itself reported to speak.
As an answer to the new banner of PlayStation Studios, he wrote that the recent rumor of the takeover triggered:

“It sounds misleading, but Kojipro was and is an independent production studio.”