The activist fund allegedly failed to comply with premerger notification rules before acquiring stock in DowDuPont two years ago.
The advisory service backs a proposal by Third Point to add five of its nominees to the soup company’s board of directors.
Third Point's Daniel Loeb believes internal company documents could boost his bid to replace Campbell's entire board.
The company's aerospace unit will remain in its portfolio despite pressure from activist investors to spin it off.
The New York hedge fund failed to seek antitrust clearance before acquiring shares in Yahoo.
Activist fund Third Point wanted to give two potential board members "stock appreciation payments" based on the performance of Dow's shares.
