Madaus Martin D
Director · REPLIGEN CORP
Every open-market stock purchase Madaus Martin D 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
- RGENREPLIGEN CORP
2 purchases totalling $315.8K at an average of $116.31 per share. See all insider buying in RGEN →
Avg price paid$116.31Latest price—Market cap$8.0B - HOLXHOLOGIC INC
One purchase totalling $300.8K at an average of $55.24 per share. See all insider buying in HOLX →
Avg price paid$55.24Latest price—Market capUnknown - AZTAAzenta, Inc.
One purchase totalling $201.4K at an average of $40.77 per share. See all insider buying in AZTA →
Avg price paid$40.77Latest price—Market capUnknown
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 Madaus Martin D's Form 4 filings on SEC EDGAR (CIK 1310268) 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.