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RGEN REPLIGEN CORP

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Stock (common), issuer CIK 730272

432 managers (445 13F filers) reported a position in RGEN shares at 2026-03-31, 65,434,381 shares in all. 62 filers opened a position and 92 filers sold out during the quarter.

Managers
432
13F filers
445
New
62
Added
166
Reduced
131
Sold out
92
Shares held by filers
65,434,381

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

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, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, 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
Elequin Capital, LP13$1.53K<0.01%-3013F-HRTimeline
Raleigh Capital Management Inc.13$1.53K<0.01%new13F-HRTimeline
Signature Equity Partners, LLC13$1.53K<0.01%013F-HRTimeline
Ancora Advisors LLCin group Ancora Advisors LLC12$1.41K<0.01%013F-HRTimelineGroup
Front Row Advisors LLC12$1.41K<0.01%013F-HRTimeline
MCF Advisors LLC11$1.3K<0.01%new13F-HRTimeline
MONTAG A & ASSOCIATES INC10$1.18K<0.01%013F-HRTimeline
FIRST HORIZON CORP10$1.18K<0.01%013F-HRTimeline
Salomon & Ludwin, LLC10$1.18K<0.01%013F-HRTimeline
Phillip James Consulting Co.4$1K<0.01%new13F-HRTimeline
Bogart Wealth, LLC8$943<0.01%new13F-HRTimeline
Bare Financial Services, Inc7$825<0.01%new13F-HRTimeline
Leonteq Securities AG6$707<0.01%-11113F-HRTimeline
Cromwell Holdings LLC6$707<0.01%013F-HRTimeline
Transamerica Financial Advisors, LLCin group Transamerica Financial Adviso…6$706<0.01%-413F-HRTimelineGroup
Sachetta, LLC5$590<0.01%new13F-HRTimeline
Dunhill Financial, LLC4$583<0.01%+313F-HRTimeline
SouthState Bank Corpin group SouthState Bank Corp4$472<0.01%013F-HRTimelineGroup
SHP Wealth Management4$471<0.01%new13F-HRTimeline
Hughes Financial Services, LLC4$471<0.01%new13F-HRTimeline
Advocate Investing Services LLC4$471<0.01%013F-HRTimeline
Bell Investment Advisors, Inc3$354<0.01%013F-HRTimeline
American Capital Advisory, LLC3$354<0.01%new13F-HRTimeline
RAFFA WEALTH MANAGEMENT, LLC3$353<0.01%013F-HRTimeline
Torren Management, LLC3$353<0.01%-13713F-HRTimeline
TORONTO DOMINION BANKin group TORONTO DOMINION BANK2$286<0.01%new13F-HRTimelineGroup
MV CAPITAL MANAGEMENT, INC.2$236<0.01%013F-HRTimeline
Quaker Wealth Management, LLC2$236<0.01%+113F-HRTimeline
ELEVATION WEALTH PARTNERS, LLC2$236<0.01%013F-HRTimeline
Principia Wealth Advisory, LLC2$236<0.01%new13F-HRTimeline
Manchester Capital Management LLC1$118<0.01%013F-HRTimeline
Capital Advisors, Ltd. LLC1$00%013F-HRTimelineValue filed as zero, left out of ratios.

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