On the order of 1bn, but my memory of exact figures from a decade ago needed refreshing. In fact only $350 million of corrupt foreign monopolist cash is enough to buy the editorial position of America's premier source of fake news.
He increased his investment by $100ish million in 2015, which more than doubled his stake. This is easily found via Google, and is on the order of an order of magnitude below a billion dollars. You can't just make things up while decrying fake news. The trend line on these goalposts moving will eventually lead to an investment I can afford.
This is even beyond my position on the paper. You're just typing complete falsehoods and expecting to get away with it now, which is sad.
Good luck defending the NY Times on that basis.