New Amsterdam Pharma CO N.V. NAMS
We take great care to ensure that the data presented and summarized in this overview for NewAmsterdam Pharma Co N.V. is accurate and up-to-date, based on a comprehensive analysis of 13F filing forms for institutional ownership and form 4 filings for insider transactions. Please note that this data may differ from other sources and should not be relied upon as the sole basis for investment decisions.
Latest Institutional Activity in NAMS
Top Purchases
Top Sells
About NAMS
Insider Transactions at NAMS
Insider Transaction List
View all| Date | Insider | Transaction | Ownership Type | Shares Traded | Value / Price |
|---|---|---|---|---|---|
|
Sep 15
2025
|
James N Topper |
BUY
Open market or private purchase
|
Indirect |
660
+0.02%
|
$15,180
$23.7 P/Share
|
|
Sep 09
2025
|
Louise Frederika Kooij Chief Accounting Officer |
SELL
Open market or private sale
|
Direct |
150,000
-59.39%
|
$3,750,000
$25.71 P/Share
|
|
Sep 09
2025
|
Louise Frederika Kooij Chief Accounting Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
150,000
+47.62%
|
$1,500,000
$10.0 P/Share
|
|
Sep 08
2025
|
James N Topper |
BUY
Open market or private purchase
|
Indirect |
1,260
+0.04%
|
$30,240
$24.99 P/Share
|
|
Sep 03
2025
|
Louise Frederika Kooij Chief Accounting Officer |
SELL
Open market or private sale
|
Direct |
18,073
-54.65%
|
$451,825
$25.09 P/Share
|
|
Sep 02
2025
|
Louise Frederika Kooij Chief Accounting Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
18,073
+35.34%
|
-
|
|
Aug 25
2025
|
Louise Frederika Kooij Chief Accounting Officer |
SELL
Open market or private sale
|
Direct |
8,269
-35.54%
|
$198,456
$24.86 P/Share
|
|
Aug 22
2025
|
Johannes Jacob Pieter Kastelein Chief Scientific Officer |
SELL
Open market or private sale
|
Indirect |
50,000
-22.72%
|
$1,250,000
$25.29 P/Share
|
|
Aug 21
2025
|
Johannes Jacob Pieter Kastelein Chief Scientific Officer |
SELL
Open market or private sale
|
Indirect |
50,000
-29.53%
|
$1,200,000
$24.29 P/Share
|
|
Aug 11
2025
|
James N Topper |
BUY
Open market or private purchase
|
Indirect |
471
+0.02%
|
$10,833
$23.98 P/Share
|
|
Jul 16
2025
|
Douglas F Kling Chief Operating Officer |
SELL
Open market or private sale
|
Direct |
51,043
-53.71%
|
$1,071,903
$21.1 P/Share
|
|
Jul 16
2025
|
Douglas F Kling Chief Operating Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
51,043
+34.94%
|
$510,430
$10.9 P/Share
|
|
Jul 15
2025
|
Douglas F Kling Chief Operating Officer |
SELL
Open market or private sale
|
Direct |
47,569
-27.77%
|
$998,949
$21.75 P/Share
|
|
Jul 15
2025
|
Douglas F Kling Chief Operating Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
47,569
+34.19%
|
$475,690
$10.9 P/Share
|
|
Jun 25
2025
|
James N Topper |
BUY
Open market or private purchase
|
Indirect |
1,260
+0.04%
|
$22,680
$18.26 P/Share
|
|
Jun 24
2025
|
James N Topper |
BUY
Open market or private purchase
|
Indirect |
2,520
+0.08%
|
$45,360
$18.43 P/Share
|
|
Jun 16
2025
|
Douglas F Kling Chief Operating Officer |
SELL
Open market or private sale
|
Direct |
100,000
-43.01%
|
$1,900,000
$19.47 P/Share
|
|
Jun 16
2025
|
Douglas F Kling Chief Operating Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
100,000
+26.11%
|
$1,000,000
$10.45 P/Share
|
|
Jun 16
2025
|
James N Topper |
BUY
Open market or private purchase
|
Indirect |
8,584
+0.28%
|
$163,096
$19.5 P/Share
|
|
Jun 01
2025
|
Louis G Lange |
BUY
Exercise of conversion of derivative security
|
Indirect |
68
+0.24%
|
-
|
Last 12 Months Summary
Buy / Acquisition
1.92M
Shares
From
21
Insiders
| Grant, award, or other acquisition | 462K shares |
|---|---|
| Open market or private purchase | 19.9K shares |
| Exercise of conversion of derivative security | 1.44M shares |
Sell / Disposition
2.44M
Shares
From
6
Insiders
| Open market or private sale | 2.44M shares |
|---|