West Ham owners David Sullivan and David Gold are not looking for any additional investment, BBC Sport understands, despite reports of a possible takeover.
Drinks giant Red Bull is reported to be considering a £200m offer for the Premier League club.
Sullivan and Gold bought a majority stake in West Ham in 2010 in a deal that valued the club at £105m.
Between them they now own over 85% of the club.
Since August's move to London Stadium, West Ham have been linked with takeovers from Qatari and Chinese groups.
Last year Sullivan said it was possible a minority shareholding could be sold to clear debts but that he and Gold intended the ownership to pass on to their children.