SIMPLEX TRADING, LLC

Position in RGEN — Repligen Corp

CIK 1488542 CHICAGO, IL

Position in RGEN

as of Mar 31, 2026 · filed May 14, 2026 Compact

Position Value

$106,391

-$286,999 QoQ

Shares Held

903

-69.3% QoQ

Ownership

0.002%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Jun 2020

11 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Healthcare · as of Mar 31, 2026

SIMPLEX TRADING, LLC holds $4,782,441 across 17 Medical Instruments & Supplies names. RGEN ranks #8 (2.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ALGN	Align Technology Inc	16,794	$2,878,995
2	OSUR	Orasure Technologies Inc	118,051	$354,153
3	ALC	Alcon Inc	4,308	$324,607
4	XRAY	DENTSPLY SIRONA Inc.	25,759	$298,804
5	COO	Cooper Companies, Inc.	3,522	$251,823
6	MBOT	Microbot Medical Inc.	54,842	$132,169
7	AVTR	Avantor, Inc.	14,727	$115,459
8	RGEN	Repligen Corp This page	903	$106,391

11 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$106,391	903	-69.3%	Shares	Sole	2026-05-14
2025-09-30	$393,390	2,943	-16.0%	Shares	Sole	2025-11-12
2025-03-31	$445,848	3,504	+6.8%	Shares	Sole	2025-05-12
2024-12-31	$472,267	3,281	-21.1%	Shares	Sole	2025-02-11
2024-09-30	$618,644	4,157	-40.8%	Shares	Sole	2024-11-08
2024-06-30	$885,067	7,021	+188.6%	Shares	Sole	2024-07-25
2023-09-30	$386,871	2,433	-10.7%	Shares	Sole	2023-11-01
2023-06-30	$385,619	2,726	+0.7%	Shares	Sole	2023-08-04
2020-12-31	$518,742	2,707	+331.7%	Shares	Sole	2021-02-02
2020-09-30	$92,507	627	-77.9%	Shares	Sole	2020-10-14
2020-06-30	$351,299	2,842	—	Shares	Sole	2020-07-13
No filing history on record for this holder in this stock.