Topper James N

Director · NewAmsterdam Pharma Co N.V.

Every open-market stock purchase Topper James N has reported to the SEC on Form 4 that met our signal bar, parsed straight from the filings. This page tracks where those buys landed inside insider clusters and how the prices paid compare to where the stock trades now.

Total bought
$273.9K
Open-market buys
2
Companies
2
Last buy
Jun 16, 2025

Where the buys stand today

  • NAMS
    NewAmsterdam Pharma Co N.V.
    +79.0% vs price paid

    One purchase totalling $167.4K at an average of $19.50 per share; the stock last traded at $34.90. See all insider buying in NAMS →

    Avg price paid
    $19.50
    Latest price
    $34.90
    Market cap
    $4.1B
  • PHAT
    Phathom Pharmaceuticals, Inc.
    +256.7% vs price paid

    One purchase totalling $106.5K at an average of $3.19 per share; the stock last traded at $11.38. See all insider buying in PHAT →

    Avg price paid
    $3.19
    Latest price
    $11.38
    Market cap
    $903.9M

Cluster participation

Qualifying buys grouped with other insiders buying the same stock — the pattern this site exists to catch.

All reported buys

DateTickerSharesPriceValueFiling
Jun 16, 2025
NAMScluster
8,584$19.50$167.4KSEC ↗
May 9, 2025
PHATcluster
33,376$3.19$106.5KSEC ↗

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About this data

Figures are parsed from Topper James N's Form 4 filings on SEC EDGAR (CIK 1341382) and cover open-market purchases (transaction code P) — grants, option exercises, and sales are excluded, which is why totals here can differ from raw filing counts. Every row links to its source document.

This page is informational and reflects public filing data. It is not investment advice.