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sellWeak10b5-1 plan

ForGrowth NAP B.V. sold $12M of NAMS

owner at NewAmsterdam Pharma Co N.V.. 462,288 shares at an average of $25.40, traded Dec 10, 2024, filed Dec 12, 2024.

Warning score
17
Value
$12M
462,288 shares
Holdings after
11,316,472
-4% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    10% owner
    +12
  • Trade size
    $11.7M at market
    +25
  • Share of holdings sold
    Sold 3.9% of holdings
    0
  • Cluster
    No other insider selling within 14 days
    0
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

NAMSOct 9, 2026 · close 21.58
Since filing Dec 12, 2024: -14.0%SPY +31.8% · excess -45.8%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0000950170-24-135796, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Dec 10, 2024SOpen-market sale
Ordinary Sharesindirect: See footnote10b5-1
-259,739$25.22$6.6M11,519,021Dec 12, 2024
Dec 10, 2024SOpen-market sale
Ordinary Sharesindirect: See footnote10b5-1
-48,511$26.15$1.3M11,470,510Dec 12, 2024
Dec 11, 2024SOpen-market sale
Ordinary Sharesindirect: See footnote10b5-1
-130,561$25.26$3.3M11,339,949Dec 12, 2024
Dec 11, 2024SOpen-market sale
Ordinary Sharesindirect: See footnote10b5-1
-18,583$26.41$491k11,321,366Dec 12, 2024
Dec 11, 2024SOpen-market sale
Ordinary Sharesindirect: See footnote10b5-1
-4,894$27.11$133k11,316,472Dec 12, 2024

Related signals

Other insiders at NewAmsterdam Pharma Co N.V. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
15Weak
NAMSsell10b5-1
NewAmsterdam Pharma Co N.V.
Johannes Jacob Pieter Kastelein
Chief Scientific Officer
$1.3M
50,246 shares
-42%
38Weak
NAMSbuy
NewAmsterdam Pharma Co N.V.
Michael H. Davidson
Chief Executive Officer
$227k
10,000 shares
+1%
26Weak
NAMSsell
NewAmsterdam Pharma Co N.V.
John W Smither
director
$41k
1,600 shares
-15%
45Moderate
NAMSsell
NewAmsterdam Pharma Co N.V.
Louise Frederika Kooij
Chief Accounting Officer
$3.1M
150,000 shares
-91%
14Weak
NAMSsell10b5-1
NewAmsterdam Pharma Co N.V.
ForGrowth NAP B.V.
owner
$762k
29,846 shares
-0%
17Weak
NAMSsell10b5-1
NewAmsterdam Pharma Co N.V.
ForGrowth NAP B.V.
owner
$1.9M
74,910 shares
-1%
17Weak
NAMSsell10b5-1
NewAmsterdam Pharma Co N.V.
ForGrowth NAP B.V.
owner
$2.3M
91,068 shares
-1%
17Weak
NAMSsell10b5-1
NewAmsterdam Pharma Co N.V.
ForGrowth NAP B.V.
owner
$4.1M
157,234 shares
-1%
17Weak
NAMSsell10b5-1
NewAmsterdam Pharma Co N.V.
ForGrowth NAP B.V.
owner
$3.0M
115,480 shares
-1%
17Weak
NAMSsell10b5-1
NewAmsterdam Pharma Co N.V.
ForGrowth NAP B.V.
owner
$4.9M
191,762 shares
-2%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

ForGrowth NAP B.V. sold $12M of NAMS | InsiderTell