 Alliancebernstein L.P. reduced its position in Bank of Marin Bancorp NASDAQ:BMRC by 5.9 during the 1st quarter, HoldingsChannel.com reports. The institutional investor owned 380,314 shares of the banks stock after selling 23,827 shares during the quarter. Alliancebernstein L.P.s holdings in Bank of Marin Bancorp were worth 11,409,000 as of its most recent filing with the ... 