SIMPLEX TRADING, LLC

Position in PEN — Penumbra Inc

CIK 1488542 CHICAGO, IL

Position in PEN

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

Position Value

$5,818,388

+$5,777,970 QoQ

Shares Held

17,719

+13530.0% QoQ

Ownership

0.045%

of shares outstanding

% of Portfolio

0.21%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

13 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 $10,644,342 across 49 Medical Devices names. PEN ranks #1 (54.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	PEN	Penumbra Inc This page	17,719	$5,818,388
2	ZBH	Zimmer Biomet Holdings, Inc.	6,887	$622,722
3	ENOV	Enovis CORP	27,193	$618,640
4	UFPT	Ufp Technologies Inc	2,376	$459,993
5	PRCT	PROCEPT BioRobotics Corp	16,725	$418,292
6	MDT	Medtronic plc	4,575	$396,423
7	DXCM	Dexcom Inc	5,052	$317,265
8	BRKR	Bruker Corp	6,729	$243,051

13 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$5,818,388	17,719	+13530.0%	Shares	Sole	2026-05-14
2025-12-31	$40,418	130	+1.6%	Shares	Sole	2026-02-11
2024-12-31	$30,397	128	-87.1%	Shares	Sole	2025-02-11
2024-03-31	$220,725	989	-88.1%	Shares	Sole	2024-04-25
2023-12-31	$2,090,548	8,311	+33.0%	Shares	Sole	2024-02-02
2023-09-30	$1,512,179	6,251	+43.4%	Shares	Sole	2023-11-01
2022-12-31	$969,703	4,359	+64.4%	Shares	Sole	2023-02-02
2022-09-30	$502,629	2,651	+1232.2%	Shares	Sole	2022-11-04
2021-09-30	$53,033	199	0.0%	Shares	Sole	2021-10-28
2021-06-30	$54,537	199	+201.5%	Shares	Sole	2021-08-12
2021-03-31	$17,858	66	-89.9%	Shares	Sole	2021-04-26
2020-06-30	$117,127	655	-63.6%	Shares	Sole	2020-07-13
2020-03-31	$290,232	1,799	—	Shares	Sole	2020-04-29
No filing history on record for this holder in this stock.