Skip to content
Disclosery

RGEN REPLIGEN CORP

Follow

Stock (common), issuer CIK 730272

Filings received so far for Q3 2026: 16 13F filers report a position in RGEN shares at 2026-09-30. The quarter is not complete: its 13F deadline is 2026-11-14, and the counts grow as filings arrive.

13D and 13G filers

Each filer's latest stake. The shares are the aggregate the reporting persons state, which can include entities that file no 13F.

Insider trades

The latest Form 4 transactions, non-derivative.
OwnerDateSharesPriceFiling
Douglass Brian Robbofficer (CHIEF PRODUCT OFFICER)2026-10-06+700 A$0Form 4
Loeillot Olivierdirector, officer (Chief Executive Officer)2026-10-05-4,202 S$190Form 4
Loeillot Olivierdirector, officer (Chief Executive Officer)2026-10-05+4,202 M$154.96Form 4
Loeillot Olivierdirector, officer (Chief Executive Officer)2026-10-05-1,333 S$178.75Form 4

13F holders, Q3 2026

Filers in the available 13F reports with a share position at 2026-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
CONGRESS ASSET MANAGEMENT CO1,020,907$196M1.27%+8,68113F-HRTimeline
Artemis Investment Management LLP374,482$72M0.63%+252,75513F-HRTimeline
MOODY NATIONAL BANK TRUST DIVISIONin group MOODY NATIONAL BANK TRUST DIV…18,167$3.49M0.29%+43913F-HRTimelineGroup
Everhart Financial Group, Inc.2,455$472K0.03%+23613F-HRTimeline
GAMMA Investing LLC2,269$436K0.01%+32513F-HRTimeline
Balefire, LLC1,962$377K0.06%-5713F-HRTimeline
GK Wealth Management LLC850$163K0.09%new13F-HRTimeline
Farther Finance Advisors, LLC374$71.9K<0.01%+9813F-HRTimeline
CoreCap Advisors, LLC275$52.9K<0.01%+25513F-HRTimeline
Grove Bank & Trust39$7.5K<0.01%013F-HRTimeline
MassMutual Private Wealth & Trust, FSB32$6.15K<0.01%+813F-HRTimeline
Retirement Wealth Solutions LLC22$4.23K<0.01%013F-HRTimeline
GoalVest Advisory LLC19$3.65K<0.01%new13F-HRTimeline
Versant Capital Management, Inc16$3.08K<0.01%+1013F-HRTimeline
Marquette Asset Management, LLC10$1.92K<0.01%013F-HRTimeline
ELEVATION WEALTH PARTNERS, LLC9$1.73K<0.01%+713F-HRTimeline

Events

  • Douglass Brian Robb acquired 700 RGEN shares on 2026-10-06, Form 4 filed 2026-10-08. 0001628280-26-065462

    Accepted , ingested

  • FMR LLC and 1 other reporting person reported 7,361,318 RGEN shares, 13% of the class, as of 2026-09-30, in a 13G/A filed 2026-10-07. 0000315066-26-002329

    Accepted , ingested

  • Loeillot Olivier disposed of 1,333 RGEN shares on 2026-10-05, Form 4 filed 2026-10-06. 0001628280-26-065238

    Accepted , ingested