← Insider buys

Martin D Madaus has bought stock on 6 days since Aug 2022

Director at Repligen Corporation, and 3 other companies

SEC CIK 0001310268 · Filings on SEC.gov ↗

$1.9MBought
$3.9MSold
Aug 12Last buy

Martin D Madaus's record

3 months after each buy, from the first price a copier could get.

+10.3%Average
+6.9 ptsVs S&P 500
6 of 6Higher

6 buys since 2022 with 3 months of prices.

Companies

Every filing

33 filings since Nov 2019, newest first

RGENBuy

Repligen Corp

Director

$202K+32.0%Aug 12
HOLXBuy

Hologic Inc

Director

$301K+247.0%May 9
AZTABuy

Azenta, Inc.

Director

$201K+200.0%Nov 19
RGENBuy

Repligen Corp

Director

$202K+54.0%Jun 14
RGENBuy

Repligen Corp

Director

$238KMay 8
QTRXBuy

Quanterix Corp

Director

$756K+49.0%Aug 10
QTRXSell

Quanterix Corp

Director

$121K−2.0%Nov 6
QTRXSell

Quanterix Corp

Director

$139K−2.0%Oct 20
QTRXSell

Quanterix Corp

Director

$118K−2.0%Oct 8
QTRXSell

Quanterix Corp

Director

$105K−2.0%Sep 30
QTRXSell

Quanterix Corp

Director

$105K−2.0%Sep 17
QTRXSell

Quanterix Corp

Director

$113K−2.0%Sep 3
QTRXSell

Quanterix Corp

Director

$111K−2.0%Aug 20
QTRXSell

Quanterix Corp

Director

$105K−2.0%Aug 5
QTRXSell

Quanterix Corp

Director

$100K−2.0%Jul 22
QTRXSell

Quanterix Corp

Director

$86K−2.0%Jul 10
QTRXSell

Quanterix Corp

Director

$84K−2.0%Jun 26
QTRXSell

Quanterix Corp

Director

$82K−2.0%Jun 10
QTRXSell

Quanterix Corp

Director

$84K−2.0%May 29
QTRXSell

Quanterix Corp

Director

$87K−2.0%May 14
QTRXSell

Quanterix Corp

Director

$211K−4.0%Apr 29
QTRXSell

Quanterix Corp

Director

$164K−4.0%Apr 16
QTRXSell

Quanterix Corp

Director

$90K−2.0%Apr 8
QTRXSell

Quanterix Corp

Director

$226K−6.0%Apr 3
QTRXSell

Quanterix Corp

Director

$179K−4.0%Mar 6
QTRXSell

Quanterix Corp

Director

$220K−4.0%Feb 21
QTRXSell

Quanterix Corp

Director

$212K−4.0%Feb 6
QTRXSell

Quanterix Corp

Director

$197K−4.0%Jan 24
QTRXSell

Quanterix Corp

Director

$176K−4.0%Jan 9
QTRXSell

Quanterix Corp

Director

$186K−4.0%Dec 30
QTRXSell

Quanterix Corp

Director

$196K−3.0%Dec 11
QTRXSell

Quanterix Corp

Director

$197K−3.0%Nov 26
QTRXSell

Quanterix Corp

Director

$172K−3.0%Nov 14
About Martin D Madaus

Dr. Martin D. Madaus is a globally experienced healthcare and life sciences executive who serves as Chair of the Board and director at Repligen Corporation (NASDAQ: RGEN), having joined the company’s Board in February 2023 and been elected Chair effective March 13, 2026.( He brings more than 25–36 years of industry experience, including five years as Chairman, President and Chief Executive Officer of Millipore Corporation, where he played a central role in transforming the company into a leading life science tools provider and in its acquisition by Merck KGaA in 2010.( In addition to his responsibilities at Repligen, Dr. Madaus is an active board leader, serving on the boards of public companies such as Azenta, Inc. and Hologic, Inc., and has previously held roles including Lead Director at Quanterix Corporation and Board member at Standard BioTools, Inc. (formerly Fluidigm).(

Over his career, Madaus has held multiple chief executive positions across the diagnostics and life science tools sectors, including Chairman and CEO of Ortho Clinical Diagnostics and President and CEO, North America, at Roche Diagnostics Corp., following earlier sales and marketing roles at Boehringer Mannheim Corporation.( He also serves as a senior operating executive at The Carlyle Group and chairs the boards of private companies such as Unchained Labs, Emulate, Inc., and UltiVue Inc., reflecting his focus on strategy, governance, and operational excellence in growth-oriented healthcare businesses.( Dr. Madaus began his professional life as a veterinarian and holds a D.V.M. from the University of Munich and a Ph.D. in veterinary medicine from the University of Veterinary Medicine Hannover in Germany, underpinning his longstanding engagement with health and life sciences innovation.(

Written by Perplexity from public sources.

Filings come from SEC EDGAR. Not investment advice.