Disney's largest shareholder, index fund manager Vanguard, plans to support management over Nelson Peltz's Trian Partners in Wednesday's board vote, Bloomberg News reported Tuesday, citing unnamed people familiar with the matter. Vanguard owns 7.8% of Disney shares. BlackRock , Disney's second -largest shareholder with 4.2% of shares, is also supporting the incumbent board and CEO Bob Iger, The Wall Street Journal reported Monday. The reporting on how Disney's largest shareholders are supposedly voting prompted harsh criticism from one-time shareholder activist Bill Ackman on Tuesday evening. Through an arrangement with former Marvel Chairman Ike Perlmutter, Trian controls 1.8% of Disney shares, making it the fifth largest shareholder.

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Persons: Bob Iger, Nelson Peltz's, Disney's, Bill Ackman, Ackman, Ike Perlmutter, Trian, Neuberger Berman, CalPERS, Jamie Dimon, George Lucas Organizations: Walt Disney Company, Shanghai Disney Resort's, Shanghai Disney Resort, Vanguard, Nelson Peltz's Trian Partners, Bloomberg News, Institutional, Disney, BlackRock, Street, Geode Capital Management, Marvel, Retail, JPMorgan Chase, Star Wars, CNBC, Bloomberg Locations: Shanghai, China, Disney's