Ackman’s Pershing Square loses ADP proxy battleNovember 6, 2017 by quixnet Ackman’s Pershing Square loses ADP proxy battleReutersBill Ackman Loses Another Boardroom BattleBloombergAckman Overwhelmingly Loses ADP Battle in Latest Blow to the Activist InvestorTheStreet.comActivist William Ackman Loses Bid for ADP Board Seats–4th UpdateFox BusinessFull coverage