Insider Trading & Ownership of Martin D. Madaus

Location: Marlborough, MA
Summary: The estimated net worth of Martin D. Madaus is at least $4,733,862 dollars as of 18 May 2026. Martin D. Madaus is the Director of Quanterix Corp and owns shares of Quanterix Corp (QTRX) stock worth about $3.14M. Martin D. Madaus is the Director of REPLIGEN CORP and owns shares of REPLIGEN CORP (RGEN) stock worth about $988.7K. Martin D. Madaus is the Director of STANDARD BIOTOOLS INC. and owns shares of STANDARD BIOTOOLS INC. (LAB) stock worth about $396.8K. Martin D. Madaus is the Director of Azenta, Inc. and owns shares of Azenta, Inc. (AZTA) stock worth about $211.4K.
Signature: /s/ Jennifer Carmichael (Attorney in Fact)
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Key facts

Martin D. Madaus has 5 issuer positions tracked on this page.
Estimated disclosed ownership value: $4,733,862.
Recent insider filing activity is available below.

Change

Largest disclosed position: Quanterix Corp ($3,136,981).
Past-year value change for that position: .

Research use

This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
You can cross-check role, issuer, and filing chronology directly against the SEC source.