The woman was only saved by the quick-thinking action of a #Bus Driver, whose vehicle could easily have struck her.
His lawyers released a statement, after their client was cleared, saying the man could prove he was in the United States when the incident occurred on May 5.
Police are continuing to investigate the incident and Bellquist's lawyers added they expect a "swift resolution to this wholly untrue allegation".
In a statement, the Met Police said the 41-year-old man arrested on Thursday will face no further enquiries having been released.
CCTV video released on Tuesday showed a runner dressed in grey appearing to push a 33-year-old woman into the path of a double-decker bus, before carrying on with his jog.
MET POLICEPolice are looking for this man in connection with the incident on Putney Bridge
Police said the victim received minor injuries and that passengers on the bus came to her aid. The partner who works for Hutton Collins Partners denies that he had anything to do with it.
The bus is seen swerving and narrowly missing the woman.
According to the New York Daily News, Bellquist is a San Diego native who previously worked at Lehman Brothers. She barely missed being hit by a bus.
About 15 minutes later, the jogger is said to have made his way back across the bridge, and although the victim tried to speak to him he did not acknowledge her and carried on.
Police are still on the pursuit for the man who they think is behind the attack.