Firestone Karen
Director · Amylyx Pharmaceuticals, Inc.
Every open-market stock purchase Firestone Karen 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.
Where the buys stand today
- AMLX+403.0% vs price paidAmylyx Pharmaceuticals, Inc.
2 purchases totalling $207.3K at an average of $3.57 per share; the stock last traded at $17.95. See all insider buying in AMLX →
Avg price paid$3.57Latest price$17.95Market cap$2.0B
Cluster participation
Qualifying buys grouped with other insiders buying the same stock — the pattern this site exists to catch.
All reported buys
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About this data
Figures are parsed from Firestone Karen's Form 4 filings on SEC EDGAR (CIK 1969821) 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.