Insider trade

Repligen (RGEN)Director bought ~$202K

Martin D Madaus, Director at Repligen, bought ~$202K of Repligen shares.

~$202K
Approx. value · 1,800 sh @ $112.13
1,800
Holds after · shares reported
Traded
Aug 8, 2025
Filed
Aug 12, 2025

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

  1. Jun 11, 2025CongressDisclosed purchase of RGEN — reported range $1,001 - $15,000
  2. Jun 17, 2025CongressDisclosed partial sale of RGEN — reported range $1,001 - $15,000
  3. Jul 22, 2025CongressDisclosed purchase of RGEN — reported range $1,001 - $15,000
  4. Aug 8, 2025 · this disclosureInsiderDirector purchased ~$202K of RGEN shares in the open market

What came next

  1. Sep 10, 2025Insider · 1 personInsiders: 6 sales (~$3.5M)
  2. Oct 28, 2025Company filing · Form 8-K · ResultsReported its results
  3. Oct 30, 2025Congress · 1 personMembers of Congress: 1 purchase, 1 sale
  4. Oct 31, 2025CongressDisclosed sale of RGEN — reported range $1,001 - $15,000
  5. Nov 12, 2025Insider · 1 personInsiders: 5 sales (~$3.9M)
  6. Nov 13, 2025Insider · 1 personInsiders: 7 sales (~$3.1M)
  7. Nov 18, 2025InsiderOfficer sold ~$331K of RGEN shares in the open market
  8. Nov 25, 2025InsiderCEO sold ~$1.2M of RGEN shares in the open market
View the official recordSEC Form 4

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Repligen

For Repligen, OQRO holds 10 insider filings (SEC Form 4 or Form 144), 15 fund holdings reports (13F) and 1 federal contract award dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its RGEN page.

Other recent filings by Martin D Madaus, Director

The full history of Martin D Madaus, Director is on the profile page.

How this filing works

Other disclosures at Repligen

Everything OQRO holds on this company is on its RGEN page.

This is one filing. OQRO holds the rest

Insider trades filed with the SEC, stock trades disclosed by members of Congress, fund holdings from 13F filings and federal contract awards, each one in plain words next to its official filing. On this page it opens why the trade stands out, what the company did around that time, the price since, and every field of the form.

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