Kling Douglas F, Chief Operating Officer of NewAmsterdam Pharma Co N.V. ($NAMS), made 10 open market sales of company shares over the past year, totaling about $4 million. His latest sale occurred on July 16, 2025. These transactions rank him 2,247th among 11,678 insiders by sale value, trailing the average of $8.6 million across 6.4 sales per seller. He reported no open market purchases in this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| July 15, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Ordinary Shares | 47569 | $10.90 | 91,569.0000 | 94,358,067 | 108.11% | 0.05% |
| July 15, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | S | Ordinary Shares | 44025 | $21.38 | 47,544.0000 | 94,358,067 | 48.08% | 0.05% |
| July 15, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | S | Ordinary Shares | 3544 | $22.12 | 44,000.0000 | 94,358,067 | 7.45% | 0.00% |
| July 16, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Ordinary Shares | 51043 | $10.90 | 95,043.0000 | 94,358,067 | 116.01% | 0.05% |
| July 16, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | S | Ordinary Shares | 51043 | $21.10 | 44,000.0000 | 94,358,067 | 53.71% | 0.05% |
| July 15, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Option (right to buy) | 47569 | $0.00 | 213,745.0000 | 94,358,067 | 18.20% | 0.05% |
| July 16, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Option (right to buy) | 51043 | $0.00 | 162,702.0000 | 94,358,067 | 23.88% | 0.05% |
| June 16, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Ordinary Shares | 78101 | $10.00 | 122,101.0000 | 94,358,067 | 177.50% | 0.08% |
| June 16, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Ordinary Shares | 21899 | $10.90 | 144,000.0000 | 94,358,067 | 17.94% | 0.02% |
| June 16, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | S | Ordinary Shares | 81891 | $19.19 | 62,109.0000 | 94,358,067 | 56.87% | 0.09% |
| June 16, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | S | Ordinary Shares | 18109 | $19.75 | 44,000.0000 | 94,358,067 | 29.16% | 0.02% |
| June 16, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Option (right to buy) | 78101 | $0.00 | 372,829.0000 | 94,358,067 | 17.32% | 0.08% |
| June 16, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Option (right to buy) | 21899 | $0.00 | 261,314.0000 | 94,358,067 | 7.73% | 0.02% |
| May 15, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Ordinary Shares | 100000 | $10.00 | 144,000.0000 | 94,358,067 | 227.27% | 0.11% |
| May 15, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | S | Ordinary Shares | 100000 | $0.00 | 44,000.0000 | 94,358,067 | 69.44% | 0.11% |
| May 15, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Option (right to buy) | 100000 | $0.00 | 450,930.0000 | 94,358,067 | 18.15% | 0.11% |
| April 15, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Ordinary Shares | 100000 | $10.00 | 144,000.0000 | 94,358,067 | 227.27% | 0.11% |
| April 15, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | S | Ordinary Shares | 99090 | $0.00 | 44,910.0000 | 94,358,067 | 68.81% | 0.11% |
| April 15, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | S | Ordinary Shares | 910 | $0.00 | 44,000.0000 | 94,358,067 | 2.03% | 0.00% |
| April 15, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Option (right to buy) | 100000 | $0.00 | 550,930.0000 | 94,358,067 | 15.36% | 0.11% |
| March 26, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Ordinary Shares | 16539 | $0.00 | 60,539.0000 | 94,358,067 | 37.59% | 0.02% |
| March 26, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | S | Ordinary Shares | 16539 | $0.00 | 44,000.0000 | 94,358,067 | 27.32% | 0.02% |
| March 26, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | A | Restricted Stock Unit | 16539 | $0.00 | 16,539.0000 | 94,358,067 | 9999.99% | 0.02% |
| March 26, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Restricted Stock Unit | 16539 | $0.00 | 0.0000 | 94,358,067 | 100.00% | 0.02% |
| March 17, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Ordinary Shares | 88112 | $0.00 | 132,112.0000 | 94,358,067 | 200.25% | 0.09% |
| March 17, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Ordinary Shares | 11888 | $10.00 | 144,000.0000 | 94,358,067 | 9.00% | 0.01% |
| March 17, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | S | Ordinary Shares | 100000 | $0.00 | 44,000.0000 | 94,358,067 | 69.44% | 0.11% |
| March 17, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Option (right to buy) | 88112 | $0.00 | 47,251.0000 | 94,358,067 | 65.09% | 0.09% |
| March 17, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Option (right to buy) | 11888 | $0.00 | 650,930.0000 | 94,358,067 | 1.79% | 0.01% |
| Feb. 18, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Ordinary Shares | 90782 | $0.00 | 134,782.0000 | 94,358,067 | 206.32% | 0.10% |
| Feb. 18, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | S | Ordinary Shares | 90782 | $0.00 | 44,000.0000 | 94,358,067 | 67.35% | 0.10% |
| Feb. 19, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Ordinary Shares | 9218 | $0.00 | 53,218.0000 | 94,358,067 | 20.95% | 0.01% |
| Feb. 19, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | S | Ordinary Shares | 9218 | $0.00 | 44,000.0000 | 94,358,067 | 17.32% | 0.01% |
| Feb. 18, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Option (right to buy) | 90782 | $0.00 | 135,363.0000 | 94,358,067 | 40.14% | 0.10% |
| Feb. 19, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Option (right to buy) | 9218 | $0.00 | 126,145.0000 | 94,358,067 | 6.81% | 0.01% |
| Jan. 29, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Ordinary Shares | 56863 | $0.00 | 100,863.0000 | 94,358,067 | 129.23% | 0.06% |
| Jan. 29, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | S | Ordinary Shares | 56863 | $0.00 | 44,000.0000 | 94,358,067 | 56.38% | 0.06% |
| Jan. 30, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Ordinary Shares | 13578 | $0.00 | 57,578.0000 | 94,358,067 | 30.86% | 0.01% |
| Jan. 30, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | S | Ordinary Shares | 4664 | $0.00 | 52,914.0000 | 94,358,067 | 8.10% | 0.00% |
| Jan. 30, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | S | Ordinary Shares | 8914 | $0.00 | 44,000.0000 | 94,358,067 | 16.85% | 0.01% |
| Jan. 29, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Option (right to buy) | 56863 | $0.00 | 239,723.0000 | 94,358,067 | 19.17% | 0.06% |
| Jan. 30, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Option (right to buy) | 13578 | $0.00 | 226,145.0000 | 94,358,067 | 5.66% | 0.01% |
| Jan. 27, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Ordinary Shares | 104174 | $0.00 | 148,174.0000 | 94,358,067 | 236.76% | 0.11% |
| Jan. 27, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | S | Ordinary Shares | 80359 | $0.00 | 67,815.0000 | 94,358,067 | 54.23% | 0.09% |
| Jan. 27, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | S | Ordinary Shares | 23815 | $0.00 | 44,000.0000 | 94,358,067 | 35.12% | 0.03% |
| Jan. 28, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Ordinary Shares | 25385 | $0.00 | 69,385.0000 | 94,358,067 | 57.69% | 0.03% |
| Jan. 28, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | S | Ordinary Shares | 20237 | $0.00 | 49,148.0000 | 94,358,067 | 29.17% | 0.02% |
| Jan. 28, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | S | Ordinary Shares | 5148 | $0.00 | 44,000.0000 | 94,358,067 | 10.47% | 0.01% |
| Jan. 27, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Option (right to buy) | 104174 | $0.00 | 321,971.0000 | 94,358,067 | 24.45% | 0.11% |
| Jan. 28, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | M | Option (right to buy) | 25385 | $0.00 | 296,586.0000 | 94,358,067 | 7.88% | 0.03% |
| Jan. 7, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | A | Ordinary Shares | 44000 | $0.00 | 44,000.0000 | 94,358,067 | 9999.99% | 0.05% |
| Jan. 2, 2025 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | A | Option (right to buy) | 250000 | $0.00 | 250,000.0000 | 94,358,067 | 9999.99% | 0.26% |
| Jan. 1, 2024 | NewAmsterdam Pharma Co N.V. | $NAMS | Kling Douglas F | Chief Operating Officer | A | Option (right to buy) | 323771 | $0.00 | 323,771.0000 | 82,161,956 | 9999.99% | 0.39% |