Star Bulk Carriers president Hamish Norton (SBLK) on global shipping and supply chain headwinds and where to find the best talent for the shipping industry. Seres Therapeutics (MCRB) sees big health benefits where the sun doesn’t shine. Lydall (LDL) watches its filter technology grow in popularity. Raven Industries (RAVN) prepares for a future of autonomously driving tractors. The Drill Down with Cory Johnson offers a daily look at the business stories behind stocks on the move.

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