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CIK 0001936258 · Large accelerated filer

NewAmsterdam Pharma Co N.V.

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Ticker
NAMS
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
FY end
Dec 31
Incorporated
Netherlands
Entity type
operating
Phone
35 206 2971
Business address
GOOIMEER 2-35, NARRDEN, Netherlands, 1411 DC
Former names
NewAmsterdam Pharma Co B.V.

Securities

  • NAMS Ordinary Shares Nasdaq
  • NAMSW Warrant Nasdaq
Open-market buys, last 90 days
$226,500
in 1 filing
Open-market sales, last 90 days
$4,661,919
in 3 filings, $4.6M under 10b5-1 plans

Net −$4,435,419. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Date Insider Transaction Shares Price Value Owned after
2025-04-15 Kling Douglas F Chief Operating Officer Sale 10b5-1 −910 44,000
2025-04-15 Kling Douglas F Chief Operating Officer Option exercise · Option (right to buy) 10b5-1 −100,000 550,930
2025-04-15 Gulfo Adele M. Director Grant or award +10,860 10,860
2025-04-15 Gulfo Adele M. Director Grant or award · Option (right to buy) +50,700 50,700
2025-04-14 LANGE LOUIS G Director Option exercise +69 28,049
2025-04-14 LANGE LOUIS G Director Option exercise · Restricted Stock Unit −69 137
2025-03-26 Topper James N Director Purchase +1,135 $22.49 $26K 3,013,569
2025-03-26 Kooij Louise Frederika Chief Accounting Officer Option exercise +8,269 23,269
2025-03-26 Kooij Louise Frederika Chief Accounting Officer Grant or award · Restricted Stock Unit +8,269 8,269
2025-03-26 Kooij Louise Frederika Chief Accounting Officer Option exercise · Restricted Stock Unit −8,269 0
2025-03-26 LANGE LOUIS G Director Option exercise +3,102 10,062
2025-03-26 LANGE LOUIS G Director Grant or award · Restricted Stock Unit +3,308 3,308
2025-03-26 LANGE LOUIS G Director Option exercise · Restricted Stock Unit −3,102 206
2025-03-26 Kastelein Johannes Jacob Pieter Chief Scientific Officer Grant or award +19,302 169,302
2025-03-26 Kastelein Johannes Jacob Pieter Chief Scientific Officer Option exercise +45,481 79,481
2025-03-26 Kastelein Johannes Jacob Pieter Chief Scientific Officer Grant or award · Restricted Stock Unit +45,481 45,481
2025-03-26 Kastelein Johannes Jacob Pieter Chief Scientific Officer Option exercise · Restricted Stock Unit −45,481 0
2025-03-26 Kling Douglas F Chief Operating Officer Option exercise +16,539 60,539
2025-03-26 Kling Douglas F Chief Operating Officer Sale −16,539 44,000
2025-03-26 Kling Douglas F Chief Operating Officer Grant or award · Restricted Stock Unit +16,539 16,539

Page 9 of 15 · 300 trades