Follow the people · Insider
Louise Frederika Kooij
Louise Frederika Kooij files insider transactions with the SEC as a chief accounting officer of NewAmsterdam Pharma Co (NAMS). We hold 8 disclosed purchases and sales filed since 3 January 2024, 2 of them in the last 90 days.
- Files forNAMS
- Disclosed buys and sells8 in all, 2 in the last 90 days
- Last disclosure22 July 2026
Positions held
1 post we hold — a term names its own dates; a run of filings only says when they filed- Filed 1 January 2024 — 20 July 2026Chief Accounting Officer · NewAmsterdam Pharma Co (NAMS)83 Form 4 lines · source: SEC Form 4
Everything they disclosed
83 entries, newest first — one per disclosure report, one per Form 4 line- exercised options over 25,000 shares of NewAmsterdam Pharma CoSEC Form 422 July 2026Ordinary Shares · traded 20 July 2026 · filed 22 July 2026
- exercised options over 80,000 shares of NewAmsterdam Pharma CoSEC Form 422 July 2026Ordinary Shares · traded 20 July 2026 · filed 22 July 2026
- ▼ sold on the open market 70,200 shares of NewAmsterdam Pharma CoSEC Form 422 July 2026Ordinary Shares · traded 20 July 2026 · filed 22 July 2026
- ▼ sold on the open market 31,885 shares of NewAmsterdam Pharma CoSEC Form 422 July 2026Ordinary Shares · traded 20 July 2026 · filed 22 July 2026
- ▼ sold on the open market 2,915 shares of NewAmsterdam Pharma CoSEC Form 422 July 2026Ordinary Shares · traded 20 July 2026 · filed 22 July 2026
- exercised options over 25,000 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 422 July 2026Option (right to buy) · traded 20 July 2026 · filed 22 July 2026
- exercised options over 80,000 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 422 July 2026Option (right to buy) · traded 20 July 2026 · filed 22 July 2026
- exercised options over 25,000 shares of NewAmsterdam Pharma CoSEC Form 424 June 2026Ordinary Shares · traded 22 June 2026 · filed 24 June 2026
- exercised options over 15,000 shares of NewAmsterdam Pharma CoSEC Form 424 June 2026Ordinary Shares · traded 22 June 2026 · filed 24 June 2026
- ▼ sold on the open market 39,700 shares of NewAmsterdam Pharma CoSEC Form 424 June 2026Ordinary Shares · traded 22 June 2026 · filed 24 June 2026
- ▼ sold on the open market 300 shares of NewAmsterdam Pharma CoSEC Form 424 June 2026Ordinary Shares · traded 22 June 2026 · filed 24 June 2026
- exercised options over 25,000 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 424 June 2026Option (right to buy) · traded 22 June 2026 · filed 24 June 2026
- exercised options over 15,000 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 424 June 2026Option (right to buy) · traded 22 June 2026 · filed 24 June 2026
- exercised options over 60,000 shares of NewAmsterdam Pharma CoSEC Form 427 May 2026Ordinary Shares · traded 26 May 2026 · filed 27 May 2026
- exercised options over 5,000 shares of NewAmsterdam Pharma CoSEC Form 427 May 2026Ordinary Shares · traded 26 May 2026 · filed 27 May 2026
- ▼ sold on the open market 65,000 shares of NewAmsterdam Pharma CoSEC Form 427 May 2026Ordinary Shares · traded 26 May 2026 · filed 27 May 2026
- exercised options over 60,000 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 427 May 2026Option (right to buy) · traded 26 May 2026 · filed 27 May 2026
- exercised options over 5,000 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 427 May 2026Option (right to buy) · traded 26 May 2026 · filed 27 May 2026
- exercised options over 39,816 shares of NewAmsterdam Pharma CoSEC Form 429 January 2026Ordinary Shares · traded 27 January 2026 · filed 29 January 2026
- ▼ sold on the open market 39,816 shares of NewAmsterdam Pharma CoSEC Form 429 January 2026Ordinary Shares · traded 27 January 2026 · filed 29 January 2026
- exercised options over 32,612 shares of NewAmsterdam Pharma CoSEC Form 429 January 2026Ordinary Shares · traded 28 January 2026 · filed 29 January 2026
- exercised options over 39,816 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 429 January 2026Option (right to buy) · traded 27 January 2026 · filed 29 January 2026
- exercised options over 32,612 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 429 January 2026Option (right to buy) · traded 28 January 2026 · filed 29 January 2026
- ▼ sold on the open market 32,612 shares of NewAmsterdam Pharma CoSEC Form 429 January 2026Ordinary Shares · traded 28 January 2026 · filed 29 January 2026
- exercised options over 39,816 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 429 January 2026Option (right to buy) · traded 27 January 2026 · filed 29 January 2026
- exercised options over 32,612 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 429 January 2026Option (right to buy) · traded 28 January 2026 · filed 29 January 2026
- exercised options over 39,816 shares of NewAmsterdam Pharma CoSEC Form 429 January 2026Ordinary Shares · traded 27 January 2026 · filed 29 January 2026
- ▼ sold on the open market 39,816 shares of NewAmsterdam Pharma CoSEC Form 429 January 2026Ordinary Shares · traded 27 January 2026 · filed 29 January 2026
- exercised options over 32,612 shares of NewAmsterdam Pharma CoSEC Form 429 January 2026Ordinary Shares · traded 28 January 2026 · filed 29 January 2026
- ▼ sold on the open market 32,612 shares of NewAmsterdam Pharma CoSEC Form 429 January 2026Ordinary Shares · traded 28 January 2026 · filed 29 January 2026
- exercised options over 38,172 shares of NewAmsterdam Pharma CoSEC Form 427 January 2026Ordinary Shares · traded 23 January 2026 · filed 27 January 2026
- ▼ sold on the open market 25,405 shares of NewAmsterdam Pharma CoSEC Form 427 January 2026Ordinary Shares · traded 23 January 2026 · filed 27 January 2026
- ▼ sold on the open market 12,767 shares of NewAmsterdam Pharma CoSEC Form 427 January 2026Ordinary Shares · traded 23 January 2026 · filed 27 January 2026
- exercised options over 38,172 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 427 January 2026Option (right to buy) · traded 23 January 2026 · filed 27 January 2026
- exercised options over 34,400 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 427 January 2026Option (right to buy) · traded 26 January 2026 · filed 27 January 2026
- exercised options over 34,400 shares of NewAmsterdam Pharma CoSEC Form 427 January 2026Ordinary Shares · traded 26 January 2026 · filed 27 January 2026
- ▼ sold on the open market 34,091 shares of NewAmsterdam Pharma CoSEC Form 427 January 2026Ordinary Shares · traded 26 January 2026 · filed 27 January 2026
- ▼ sold on the open market 309 shares of NewAmsterdam Pharma CoSEC Form 427 January 2026Ordinary Shares · traded 26 January 2026 · filed 27 January 2026
- exercised options over 38,172 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 427 January 2026Option (right to buy) · traded 23 January 2026 · filed 27 January 2026
- exercised options over 34,400 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 427 January 2026Option (right to buy) · traded 26 January 2026 · filed 27 January 2026
- exercised options over 38,172 shares of NewAmsterdam Pharma CoSEC Form 427 January 2026Ordinary Shares · traded 23 January 2026 · filed 27 January 2026
- ▼ sold on the open market 25,405 shares of NewAmsterdam Pharma CoSEC Form 427 January 2026Ordinary Shares · traded 23 January 2026 · filed 27 January 2026
- ▼ sold on the open market 12,767 shares of NewAmsterdam Pharma CoSEC Form 427 January 2026Ordinary Shares · traded 23 January 2026 · filed 27 January 2026
- exercised options over 34,400 shares of NewAmsterdam Pharma CoSEC Form 427 January 2026Ordinary Shares · traded 26 January 2026 · filed 27 January 2026
- ▼ sold on the open market 34,091 shares of NewAmsterdam Pharma CoSEC Form 427 January 2026Ordinary Shares · traded 26 January 2026 · filed 27 January 2026
- ▼ sold on the open market 309 shares of NewAmsterdam Pharma CoSEC Form 427 January 2026Ordinary Shares · traded 26 January 2026 · filed 27 January 2026
- ▼ sold on the open market 2,647 shares of NewAmsterdam Pharma CoSEC Form 47 January 2026Ordinary Shares · traded 5 January 2026 · filed 7 January 2026
- was granted 12,000 shares of NewAmsterdam Pharma CoSEC Form 47 January 2026Ordinary Shares · traded 7 January 2026 · filed 7 January 2026
- was granted 53,500 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 47 January 2026Option (right to buy) · traded 7 January 2026 · filed 7 January 2026
- was granted 53,500 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 47 January 2026Option (right to buy) · traded 7 January 2026 · filed 7 January 2026
- ▼ sold on the open market 2,647 shares of NewAmsterdam Pharma CoSEC Form 47 January 2026Ordinary Shares · traded 5 January 2026 · filed 7 January 2026
- was granted 12,000 shares of NewAmsterdam Pharma CoSEC Form 47 January 2026Ordinary Shares · traded 7 January 2026 · filed 7 January 2026
- exercised options over 75,117 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 429 December 2025Option (right to buy) · traded 23 December 2025 · filed 29 December 2025
- exercised options over 26,011 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 429 December 2025Option (right to buy) · traded 24 December 2025 · filed 29 December 2025
- exercised options over 38,872 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 429 December 2025Option (right to buy) · traded 26 December 2025 · filed 29 December 2025
- exercised options over 5,000 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 429 December 2025Option (right to buy) · traded 26 December 2025 · filed 29 December 2025
- exercised options over 75,117 shares of NewAmsterdam Pharma CoSEC Form 429 December 2025Ordinary Shares · traded 23 December 2025 · filed 29 December 2025
- ▼ sold on the open market 75,117 shares of NewAmsterdam Pharma CoSEC Form 429 December 2025Ordinary Shares · traded 23 December 2025 · filed 29 December 2025
- exercised options over 26,011 shares of NewAmsterdam Pharma CoSEC Form 429 December 2025Ordinary Shares · traded 24 December 2025 · filed 29 December 2025
- ▼ sold on the open market 26,011 shares of NewAmsterdam Pharma CoSEC Form 429 December 2025Ordinary Shares · traded 24 December 2025 · filed 29 December 2025
- exercised options over 38,872 shares of NewAmsterdam Pharma CoSEC Form 429 December 2025Ordinary Shares · traded 26 December 2025 · filed 29 December 2025
- exercised options over 5,000 shares of NewAmsterdam Pharma CoSEC Form 429 December 2025Ordinary Shares · traded 26 December 2025 · filed 29 December 2025
- ▼ sold on the open market 43,872 shares of NewAmsterdam Pharma CoSEC Form 429 December 2025Ordinary Shares · traded 26 December 2025 · filed 29 December 2025
- exercised options over 150,000 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 410 September 2025Option (right to buy) · traded 9 September 2025 · filed 10 September 2025
- exercised options over 150,000 shares of NewAmsterdam Pharma CoSEC Form 410 September 2025Ordinary Shares · traded 9 September 2025 · filed 10 September 2025
- ▼ sold on the open market 53,104 shares of NewAmsterdam Pharma CoSEC Form 410 September 2025Ordinary Shares · traded 9 September 2025 · filed 10 September 2025
- ▼ sold on the open market 96,896 shares of NewAmsterdam Pharma CoSEC Form 410 September 2025Ordinary Shares · traded 9 September 2025 · filed 10 September 2025
- ▼ sold on the open market 18,073 shares of NewAmsterdam Pharma CoSEC Form 45 September 2025Ordinary Shares · traded 3 September 2025 · filed 5 September 2025
- exercised options over 18,073 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 44 September 2025Option (right to buy) · traded 2 September 2025 · filed 4 September 2025
- exercised options over 18,073 shares of NewAmsterdam Pharma CoSEC Form 44 September 2025Ordinary Shares · traded 2 September 2025 · filed 4 September 2025
- ▼ sold on the open market 8,269 shares of NewAmsterdam Pharma CoSEC Form 427 August 2025Ordinary Shares · traded 25 August 2025 · filed 27 August 2025
- was granted 8,269 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 428 March 2025Restricted Stock Unit · traded 26 March 2025 · filed 28 March 2025
- exercised options over 8,269 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 428 March 2025Restricted Stock Unit · traded 26 March 2025 · filed 28 March 2025
- exercised options over 8,269 shares of NewAmsterdam Pharma CoSEC Form 428 March 2025Ordinary Shares · traded 26 March 2025 · filed 28 March 2025
- exercised options over 150,000 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 45 March 2025Option (right to buy) · traded 4 March 2025 · filed 5 March 2025
- exercised options over 150,000 shares of NewAmsterdam Pharma CoSEC Form 45 March 2025Ordinary Shares · traded 4 March 2025 · filed 5 March 2025
- ▼ sold on the open market 150,000 shares of NewAmsterdam Pharma CoSEC Form 45 March 2025Ordinary Shares · traded 4 March 2025 · filed 5 March 2025
- was granted 15,000 shares of NewAmsterdam Pharma CoSEC Form 47 January 2025Ordinary Shares · traded 7 January 2025 · filed 7 January 2025
- was granted 80,000 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 46 January 2025Option (right to buy) · traded 2 January 2025 · filed 6 January 2025
- exercised options over 45,000 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 41 October 2024Option (right to buy) · traded 27 September 2024 · filed 1 October 2024
- exercised options over 45,000 shares of NewAmsterdam Pharma CoSEC Form 41 October 2024Ordinary Shares · traded 27 September 2024 · filed 1 October 2024
- ▼ sold on the open market 45,000 shares of NewAmsterdam Pharma CoSEC Form 41 October 2024Ordinary Shares · traded 1 October 2024 · filed 1 October 2024
- was granted 150,494 shares of NewAmsterdam Pharma Co (a derivative holding)SEC Form 43 January 2024Option (right to buy) · traded 1 January 2024 · filed 3 January 2024
Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.