HTC Vive is at around 150k-200k, IIRC, and Oculus sales aren't disclosed.
It even says it in the article.
One research firm, SuperData Research, estimates there were 243,000 Oculus Rift headsets and 420,000 HTC Vive headsets sold by the end of last year.
It's good to see PSVR doing well. It's about where I expected it to be considering the price point.
I would have liked to see PSVR developers make better use of individually tracked controller input though. It's unfortunate that a lot of games seem to be content with sitting and a gamepad.