Stocks · Health care · Pharmaceutical Preparations

NewAmsterdam Pharma Co N.V.

NAMS Clue Score24
Netherlands Fiscal year ends December CIK 0001936258
21.58
+1.48%
Close, 9 Oct 2026 · USD

Price, with every insider trade on it

Closing prices, 12 months · point at a dot for who traded, or at the line for the close
21.58 on 9 Oct 2026
41 31 21 Oct 2025 Apr 2026 Oct 2026 13 Oct 2025 $37.15 14 Oct 2025 $37.86 15 Oct 2025 $40.45 16 Oct 2025 $36.47 17 Oct 2025 $36.40 20 Oct 2025 $37.66 21 Oct 2025 $36.48 22 Oct 2025 $35.00 23 Oct 2025 $36.29 24 Oct 2025 $35.72 27 Oct 2025 $36.04 28 Oct 2025 $36.14 29 Oct 2025 $35.84 30 Oct 2025 $38.72 31 Oct 2025 $37.95 3 Nov 2025 $37.00 4 Nov 2025 $36.53 5 Nov 2025 $38.13 6 Nov 2025 $37.05 7 Nov 2025 $36.76 10 Nov 2025 $38.97 11 Nov 2025 $39.89 12 Nov 2025 $38.31 13 Nov 2025 $36.42 14 Nov 2025 $38.35 17 Nov 2025 $38.56 18 Nov 2025 $38.91 19 Nov 2025 $38.62 20 Nov 2025 $37.71 21 Nov 2025 $38.27 24 Nov 2025 $39.31 25 Nov 2025 $40.44 26 Nov 2025 $41.45 28 Nov 2025 $41.30 1 Dec 2025 $39.61 2 Dec 2025 $38.33 3 Dec 2025 $35.52 4 Dec 2025 $35.85 5 Dec 2025 $35.26 8 Dec 2025 $35.75 9 Dec 2025 $34.80 10 Dec 2025 $35.61 11 Dec 2025 $36.17 12 Dec 2025 $37.25 15 Dec 2025 $35.35 16 Dec 2025 $34.22 17 Dec 2025 $33.68 18 Dec 2025 $33.90 19 Dec 2025 $35.11 22 Dec 2025 $36.49 23 Dec 2025 $35.95 24 Dec 2025 $35.65 26 Dec 2025 $35.27 29 Dec 2025 $35.02 30 Dec 2025 $34.74 31 Dec 2025 $35.08 2 Jan 2026 $35.20 5 Jan 2026 $33.48 6 Jan 2026 $34.02 7 Jan 2026 $35.45 8 Jan 2026 $35.80 9 Jan 2026 $34.37 12 Jan 2026 $32.69 13 Jan 2026 $31.86 14 Jan 2026 $31.92 15 Jan 2026 $31.83 16 Jan 2026 $31.65 20 Jan 2026 $32.41 21 Jan 2026 $33.94 22 Jan 2026 $34.81 23 Jan 2026 $33.32 26 Jan 2026 $32.37 27 Jan 2026 $32.63 28 Jan 2026 $31.88 29 Jan 2026 $31.44 30 Jan 2026 $31.12 2 Feb 2026 $31.57 3 Feb 2026 $32.99 4 Feb 2026 $32.98 5 Feb 2026 $32.06 6 Feb 2026 $34.30 9 Feb 2026 $35.00 10 Feb 2026 $34.89 11 Feb 2026 $34.24 12 Feb 2026 $34.86 13 Feb 2026 $34.63 17 Feb 2026 $35.24 18 Feb 2026 $35.76 19 Feb 2026 $34.63 20 Feb 2026 $35.58 23 Feb 2026 $36.17 24 Feb 2026 $36.01 25 Feb 2026 $35.01 26 Feb 2026 $34.28 27 Feb 2026 $35.46 2 Mar 2026 $32.83 3 Mar 2026 $30.41 4 Mar 2026 $31.18 5 Mar 2026 $30.14 6 Mar 2026 $29.86 9 Mar 2026 $30.77 10 Mar 2026 $31.27 11 Mar 2026 $31.35 12 Mar 2026 $29.82 13 Mar 2026 $28.62 16 Mar 2026 $29.79 17 Mar 2026 $30.60 18 Mar 2026 $29.44 19 Mar 2026 $30.46 20 Mar 2026 $28.94 23 Mar 2026 $30.01 24 Mar 2026 $30.06 25 Mar 2026 $31.01 26 Mar 2026 $31.25 27 Mar 2026 $29.98 30 Mar 2026 $29.33 31 Mar 2026 $32.01 1 Apr 2026 $32.81 2 Apr 2026 $32.99 6 Apr 2026 $34.12 7 Apr 2026 $33.91 8 Apr 2026 $34.01 9 Apr 2026 $35.07 10 Apr 2026 $34.76 13 Apr 2026 $36.25 14 Apr 2026 $34.44 15 Apr 2026 $34.01 16 Apr 2026 $33.20 17 Apr 2026 $34.68 20 Apr 2026 $33.82 21 Apr 2026 $32.48 22 Apr 2026 $31.94 23 Apr 2026 $31.46 24 Apr 2026 $29.72 27 Apr 2026 $30.45 28 Apr 2026 $28.72 29 Apr 2026 $28.43 30 Apr 2026 $28.56 1 May 2026 $28.43 4 May 2026 $29.86 5 May 2026 $29.85 6 May 2026 $30.99 7 May 2026 $34.85 8 May 2026 $38.73 11 May 2026 $39.59 12 May 2026 $38.89 13 May 2026 $37.75 14 May 2026 $36.88 15 May 2026 $35.44 18 May 2026 $34.14 19 May 2026 $33.72 20 May 2026 $35.75 21 May 2026 $35.74 22 May 2026 $35.44 26 May 2026 $36.11 27 May 2026 $36.56 28 May 2026 $35.42 29 May 2026 $33.68 1 Jun 2026 $31.79 2 Jun 2026 $31.71 3 Jun 2026 $32.11 4 Jun 2026 $32.67 5 Jun 2026 $31.52 8 Jun 2026 $30.95 9 Jun 2026 $30.38 10 Jun 2026 $29.33 11 Jun 2026 $30.26 12 Jun 2026 $30.40 15 Jun 2026 $30.60 16 Jun 2026 $30.19 17 Jun 2026 $30.15 18 Jun 2026 $29.83 22 Jun 2026 $30.82 23 Jun 2026 $31.40 24 Jun 2026 $32.63 25 Jun 2026 $31.73 26 Jun 2026 $33.24 29 Jun 2026 $33.87 30 Jun 2026 $33.89 1 Jul 2026 $35.17 2 Jul 2026 $34.83 6 Jul 2026 $34.90 7 Jul 2026 $36.99 8 Jul 2026 $35.83 9 Jul 2026 $35.92 10 Jul 2026 $35.26 13 Jul 2026 $33.28 14 Jul 2026 $33.29 15 Jul 2026 $31.98 16 Jul 2026 $31.05 17 Jul 2026 $31.68 20 Jul 2026 $29.67 21 Jul 2026 $32.34 22 Jul 2026 $31.70 23 Jul 2026 $30.55 24 Jul 2026 $29.64 27 Jul 2026 $30.22 28 Jul 2026 $27.98 29 Jul 2026 $27.91 30 Jul 2026 $28.46 31 Jul 2026 $27.79 3 Aug 2026 $27.49 4 Aug 2026 $27.55 5 Aug 2026 $27.42 6 Aug 2026 $27.67 7 Aug 2026 $27.96 10 Aug 2026 $27.98 11 Aug 2026 $27.62 12 Aug 2026 $27.83 13 Aug 2026 $26.67 14 Aug 2026 $26.98 17 Aug 2026 $26.90 18 Aug 2026 $27.25 19 Aug 2026 $28.53 20 Aug 2026 $27.78 21 Aug 2026 $27.87 24 Aug 2026 $26.85 25 Aug 2026 $27.34 26 Aug 2026 $27.40 27 Aug 2026 $26.79 28 Aug 2026 $25.90 31 Aug 2026 $25.34 1 Sep 2026 $24.92 2 Sep 2026 $25.59 3 Sep 2026 $25.85 4 Sep 2026 $25.40 8 Sep 2026 $25.63 9 Sep 2026 $22.79 10 Sep 2026 $21.86 11 Sep 2026 $22.80 14 Sep 2026 $22.36 15 Sep 2026 $21.16 16 Sep 2026 $21.18 17 Sep 2026 $21.93 18 Sep 2026 $22.49 21 Sep 2026 $22.58 22 Sep 2026 $23.32 23 Sep 2026 $22.68 24 Sep 2026 $22.74 25 Sep 2026 $22.58 28 Sep 2026 $23.58 29 Sep 2026 $23.81 30 Sep 2026 $24.32 1 Oct 2026 $24.16 2 Oct 2026 $23.20 5 Oct 2026 $22.80 6 Oct 2026 $22.27 7 Oct 2026 $22.13 8 Oct 2026 $21.26 9 Oct 2026 $21.58 Kooij Louise Frederika Chief Accounting Officer Sold on a plan $2.72M 23 Dec 2025 · at $36.21 · 83.4% of stake Kooij Louise Frederika Chief Accounting Officer Sold on a plan $928.07K 24 Dec 2025 · at $35.68 · 63.4% of stake Kooij Louise Frederika Chief Accounting Officer Sold on a plan $1.55M 26 Dec 2025 · at $35.30 · 74.5% of stake Kooij Louise Frederika Chief Accounting Officer Sold on a plan $88.01K 5 Jan 2026 · at $33.25 · 17.6% of stake Somaiya Mayur Ian Chief Financial Officer Sold on a plan $170.17K 5 Jan 2026 · at $33.25 · 13.5% of stake Kastelein Johannes Jacob Piet… Chief Scientific Officer Sold on a plan $199.50K 5 Jan 2026 · at $33.25 · 7.5% of stake Davidson Michael H. Chief Executive Officer Sold on a plan 7 Jan 2026 · 3.0% of stake Somaiya Mayur Ian Chief Financial Officer Sold on a plan $1.92M 20 Jan 2026 · at $31.96 · 50.8% of stake Somaiya Mayur Ian Chief Financial Officer Sold on a plan $1.34M 21 Jan 2026 · at $33.59 · 40.5% of stake Kooij Louise Frederika Chief Accounting Officer Sold on a plan $1.29M 23 Jan 2026 · at $33.75 · 61.1% of stake Kooij Louise Frederika Chief Accounting Officer Sold on a plan $1.13M 26 Jan 2026 · at $32.78 · 58.6% of stake Kooij Louise Frederika Chief Accounting Officer Sold on a plan $1.30M 27 Jan 2026 · at $32.62 · 62.0% of stake Kooij Louise Frederika Chief Accounting Officer Sold on a plan $1.04M 28 Jan 2026 · at $31.80 · 57.2% of stake Kastelein Johannes Jacob Piet… Chief Scientific Officer Sold at will $1.61M 20 Feb 2026 · at $35.31 · 45.9% of stake Davidson Michael H. Chief Executive Officer Sold on a plan $2.34M 24 Feb 2026 · at $36.15 · 12.3% of stake Davidson Michael H. Chief Executive Officer Sold on a plan $2.06M 25 Feb 2026 · at $35.30 · 11.2% of stake Davidson Michael H. Chief Executive Officer Sold on a plan $6.18M 26 Feb 2026 · at $33.71 · 51.3% of stake Davidson Michael H. Chief Executive Officer Sold at will $14.75M 2 Mar 2026 · at $33.25 · 71.8% of stake Kastelein Johannes Jacob Piet… Chief Scientific Officer Sold on a plan $3.17M 5 Mar 2026 · at $30.30 · 60.1% of stake LANGE LOUIS G Director Sold at will $828.95K 6 Mar 2026 · at $29.41 · 100% of stake Kastelein Johannes Jacob Piet… Chief Scientific Officer Sold on a plan $2.85M 6 Mar 2026 · at $30.32 · 57.6% of stake Kastelein Johannes Jacob Piet… Chief Scientific Officer Sold on a plan $3.07M 9 Mar 2026 · at $30.29 · 59.4% of stake LANGE LOUIS G Director Sold at will $1.36M 11 Mar 2026 · at $30.42 · 81.2% of stake Kooij Louise Frederika Chief Accounting Officer Sold on a plan $2.32M 26 May 2026 · at $35.69 · 72.7% of stake Kooij Louise Frederika Chief Accounting Officer Sold on a plan $1.21M 22 Jun 2026 · at $30.20 · 62.2% of stake Kooij Louise Frederika Chief Accounting Officer Sold on a plan $3.19M 20 Jul 2026 · at $30.34 · 81.2% of stake Kastelein Johannes Jacob Piet… Chief Scientific Officer Sold on a plan $3.36M 24 Aug 2026 · at $26.91 · 64.3% of stake Smither John W Director Sold at will $40.51K 4 Sep 2026 · at $25.32 · 15.4% of stake Davidson Michael H. Chief Executive Officer Bought $226.50K 14 Sep 2026 · at $22.65 · 1.3% of stake Kastelein Johannes Jacob Piet… Chief Scientific Officer Sold on a plan $1.26M 30 Sep 2026 · at $25.03 · 42.0% of stake
1 buy5 sales at will24 planned sales

Key numbers

Fiscal year 2025, ended 31 Dec 2025, as filed
Revenue
$22.50M
Net income
$203.82M
Free cash flow
$148.03M
Operating margin
-1,002.9%
Net margin
-905.7%
Return on equity
-29.8%
Return on capital
-26.1%
Revenue growth, 1 yr
-50.6%

Revenue and net income

Fiscal years, as filed with the SEC · point at a year for the detail
0K -6M FY20 Fiscal year 2020 Revenue $0.00 Net income $5.75M Margin n/a 0K -42M FY21 Fiscal year 2021 Revenue $0.00 Net income $41.79M Margin n/a 103M -23M FY22 Fiscal year 2022 Revenue $102.69M Net income $22.63M Margin -22.0% 14M -177M FY23 Fiscal year 2023 Revenue $14.09M Net income $176.94M Margin -1,255.8% · growth -86.3% 46M -242M FY24 Fiscal year 2024 Revenue $45.56M Net income $241.60M Margin -530.3% · growth +223.4% 23M -204M FY25 Fiscal year 2025 Revenue $22.50M Net income $203.82M Margin -905.7% · growth -50.6%
RevenueNet incomeLoss

Latest insider transactions

From Form 4, most recent first
All of them →
DateInsiderTypeValueOf own stake
30 Sep 2026 Kastelein Johannes Jacob Pieter
Chief Scientific Officer
Sold on a plan $1.26M 42.0%
14 Sep 2026 Davidson Michael H.
Chief Executive Officer
Bought $226.50K 1.3%
4 Sep 2026 Smither John W
Director
Sold at will $40.51K 15.4%
24 Aug 2026 Kastelein Johannes Jacob Pieter
Chief Scientific Officer
Sold on a plan $3.36M 64.3%
20 Jul 2026 Kooij Louise Frederika
Chief Accounting Officer
Sold on a plan $3.19M 81.2%
22 Jun 2026 Kooij Louise Frederika
Chief Accounting Officer
Sold on a plan $1.21M 62.2%