InsidersTradesSigma
Browse the full directors' dealings record of COLUMBIA BANKING SYSTEM INC, a publicly traded company based in United States. Shares trade on US US, under the oversight of SEC (Form 4). Market capitalisation: €8.5bn. The latest transaction was reported on 14 January 2016 (Attribution). Among the most active insiders: BARUFFI KUMI YAMAMOTO. The full history is openly available.
Informational score on this market. Our backtest validates the signal only on 8 EU venues; elsewhere (notably US markets) insider buys historically invert or do not hold. Not a recommendation.
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