secwatch / observer
RGEN REPLIGEN CORP
CIK 0000730272 47 ready 8-Ks latest July 28, 2026, 7:13 AM ET RSS · JSON
Activity: QUIET 0 filings / 30d vs 1 baseline
Ready 8-Ks 47
Latest filing July 28, 2026, 7:13 AM ET
Top materiality 0.90
Event mix earnings ×21 · leadership ×10 · m_and_a ×6
Sentiment 19 pos · 7 neg · 21 neu
Latest earnings reported 2026-Q1
Executive change recent →

Recent 8-K filings for RGEN

Executive changes

Role change

Tony J. Hunt

Executive Chair
RGEN · REPLIGEN CORP
Effective
2024-09-01
Successor
Olivier Loeillot
Filed
June 14, 2024, 7:59 PM ET
Tony J. Hunt, who will serve as Executive Chair of the Repligen board of directors
Appointed

Olivier Loeillot

President and Chief Executive Officer
RGEN · REPLIGEN CORP
Effective
2024-09-01
Filed
June 14, 2024, 7:59 PM ET
Repligen has appointed Olivier Loeillot, Repligen’s President and Chief Commercial Officer, to the role of President and Chief Executive Officer, as successor to Tony J. Hunt, who will serve as Executive Chair of the Repligen board of directors (the “Board”), with such transition to be effective September 1, 2024
Role change

Karen A. Dawes

Lead Independent Director
RGEN · REPLIGEN CORP
Effective
2024-09-01
Filed
June 14, 2024, 7:59 PM ET
appointed Karen A. Dawes, the Board’s current Chair, to the role of Lead Independent Director
Appointed

Olivier Loeillot

Member of the Board
RGEN · REPLIGEN CORP
Effective
2024-09-01
Filed
June 14, 2024, 7:59 PM ET
the Board elected Mr. Loeillot as a member of the Board
Appointed

Margaret A. Pax

Director
RGEN · REPLIGEN CORP
Effective
2024-03-18
Filed
March 19, 2024, 7:59 PM ET
the Board elected Margaret A. Pax to the Board, effective immediately (the “Effective Date”).
Role change

Tony Hunt

President
RGEN · REPLIGEN CORP
Effective
2023-10-02
Successor
Olivier Loeillot
Filed
October 2, 2023, 7:59 PM ET
In connection with Mr. Hunt’s and the rest of the Board’s appointment of Mr. Loeillot’s as President and Chief Commercial Officer, Mr. Hunt will relinquish his role of President, effective October 2, 2023.
Appointed

Olivier Loeillot

President and Chief Commercial Officer
RGEN · REPLIGEN CORP
Effective
2023-10-02
Filed
October 2, 2023, 7:59 PM ET
On October 2, 2023, Repligen Corporation (the “Company”) announced that Olivier Loeillot would be joining the Company as its President and Chief Commercial Officer, effective October 2, 2023 (the “Effective Date”).
Departed

Jon Snodgres

Chief Financial Officer
RGEN · REPLIGEN CORP
Effective
2023-09-25
Successor
Jason K. Garland
Filed
September 12, 2023, 7:59 PM ET
replacing Jon Snodgres, who tendered his intention to retire on September 8, 2023 and who will continue in a full-time advisory role with the Company until October 6, 2023.
Appointed

Jason K. Garland

Chief Financial Officer
RGEN · REPLIGEN CORP
Effective
2023-09-25
Filed
September 12, 2023, 7:59 PM ET
On September 12, 2023, Repligen Corporation (the “Company”) announced that Jason K. Garland would be joining the Company as its Chief Financial Officer, effective September 25, 2023 (the “Effective Date”), replacing Jon Snodgres, who tendered his intention to retire on September 8, 2023 and who will continue in a full-time advisory role with the Company until October 6, 2023.
Appointed

Martin Madaus

Director
RGEN · REPLIGEN CORP
Effective
2023-02-06
Filed
February 9, 2023, 6:59 PM ET
the Board elected Martin Madaus, Ph.D. to the Board, effective February 6, 2023
Appointed

Konstantin Konstantinov

Director
RGEN · REPLIGEN CORP
Effective
2022-05-26
Filed
June 1, 2022, 7:59 PM ET
the Board elected Konstantin Konstantinov, Ph.D. to the Board, effective May 26, 2022
Role change

James Bylund

Chief Operating Officer
RGEN · REPLIGEN CORP
Effective
2022-01-01
Filed
January 4, 2022, 6:59 PM ET
On January 3, 2022, Repligen Corporation (the “ Company ”) promoted James Bylund, the Company’s current Senior Vice President, Operations and Information Technologies, to the role of Chief Operating Officer of the Company, effective January 1, 2022.

Earnings & guidance

2026-Q1 EPS reported $0.15 filing →

Materiality & sentiment trend

Max materiality 0.90 · Median 0.70 · Most common event earnings

19 positive 7 negative 21 neutral

source · RGEN on sec.gov