Maheshwari also noted a $55 million charge in the quarter related to transformation investments to redesign manufacturing, distribution, and business process services and locations, which he said would be excluded from adjusted results.CFO Anurag Maheshwari said 3M’s fourth-quarter adjusted operating margin rose 140 basis points to 21.1$125 million. He said the quarter benefited from $275 million tied to volume growth, broad-based productivity, and lower restructuring ...