Insider Activity: NewAmsterdam Pharma COO Sells $1.65 Million in Shares Douglas Kling, COO of NewAmsterdam Pharma, sold 100,000 company shares for $1.65 million on April 15, under a pre-set trading plan. The stock has gained nearly 10% in the past week, and analysts have raised price targets, citing upcoming data releases and strong financials as key drivers for investor optimism.123