City boss Mark Hughes tried to include Parker in a joint bid which also included Welsh striker Craig Bellamy, in the January transfer window.
He told the Daily Telegraph: “As soon as I was put in the picture about things here – because you hear the club need to sell – it was fine.
“City is obviously a big club that’s going places but I’m happy here. As long as West Ham were stable and the manager’s views were the same as mine then it was okay.”
He added on the loss of Bellamy: “Yeah, that was a severe loss. It’s different circumstances as well. I’m sure Craig’s were different to mine.
“I know people say there’s no loyalty in football but that’s just the way it is. It was a big opportunity for Craig and he felt he had to go. We just have to get on with it now.”