A recent report by Sky Sports claims Manchester United are keen on signing the Austria worldwide this summer, with the Hammers valuing the player at a whopping £50 million.
"I am happy with my job". I've never heard anything.
"Even three weeks ago I haven't heard anything".
Arnautovic only joined West Ham for a club-record £20 million ($27m) fee in the summer of 2017 and is tied to a contract through to 2022.
Arnautovic has been heavily linked with a move to Old Trafford after enjoying a brilliant season for West Ham in the Premier League.
"That's why I can not say anything about it. That's why I can not say anything about it.The only thing that bothers me is that I am in good health and that I am able to play football".
Arnautovic has been the subject of interest from Jose Mourinho in recent weeks as the Portuguese tactician was spotted scouting him on global duty last week.
Arnautovic bagged 11 times in 22 games times since David Moyes' appointment in December and was West Ham's player of the season following his £24m arrival from Stoke last summer.
United boss Jose Mourinho will be looking to seriously bolster his squad this summer as he seeks to wrestle Premier League supremacy away from neighbours Manchester City.