The Abu Dhabi Investment Council filed a complaint against the Energy & Minerals Group related to the sale of fund assets into a continuation vehicle.
A federal judge dismissed a case that alleged Unilever misled investors by concealing a board resolution.
Investors can comment on the settlement until the court approval hearing, scheduled for October 11.
The pension fund accuses Aon of breach of contract, breach of fiduciary duty and negligence.
The airline agreed to pay $5 million to the Birmingham fire and police pension fund but denied any wrongdoing.
