MarketAxess shareholders are slated to receive $167 per share in cash under the current agreement, a transaction that pegs the firm’s equity value at approximately $6 billion. Legal experts at Ademi LLP are now scrutinizing the board of directors' conduct, specifically examining if the change-of-control arrangements provide excessive benefits to insiders at the expense of general investors.

Beyond the valuation, the investigation focuses on restrictive clauses within the merger agreement. The contract imposes a substantial penalty on MarketAxess should the firm entertain a competing bid, a move that critics argue limits the board's ability to secure a more favorable outcome. Ademi LLP, which specializes in buyout and merger litigation, is currently reviewing whether these terms constitute a breach of fiduciary duty.