SIMPLEX TRADING, LLC

Position in LRMR — Larimar Therapeutics, Inc.

CIK 1488542 CHICAGO, IL

Position in LRMR

as of Jun 30, 2026 · filed Aug 12, 2026 Compact

Position Value

$178,754

+$62,466 QoQ

Shares Held

58,608

+92.0% QoQ

Ownership

0.056%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

#70

of 163 holders

Holding Since

Jun 2021

15 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Healthcare · as of Jun 30, 2026

SIMPLEX TRADING, LLC holds $83,352,766 across 183 Biotechnology names. LRMR ranks #65 (0.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	MRNA	Moderna, Inc.	154,558	$10,823,696
2	QURE	uniQure N.V.	110,219	$5,076,687
3	ERAS	Erasca, Inc.	276,988	$5,074,420
4	AXSM	Axsome Therapeutics, Inc.	19,643	$4,808,017
5	BBIO	BridgeBio Pharma, Inc.	55,535	$4,136,246
6	ALNY	Alnylam Pharmaceuticals, Inc.	11,567	$3,482,014
7	ARWR	Arrowhead Pharmaceuticals, Inc.	29,002	$2,363,953
8	SLS	SELLAS Life Sciences Group, Inc.	154,099	$2,274,501

15 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$178,754	58,608	+92.0%	Shares	Sole	2026-08-12
2025-12-31	$116,288	30,522	-85.8%	Shares	Sole	2026-02-11
2025-09-30	$695,942	215,462	+53.4%	Shares	Sole	2025-11-12
2025-06-30	$405,825	140,424	+53090.9%	Shares	Sole	2025-08-05
2025-03-31	$567	264	-99.0%	Shares	Sole	2025-05-12
2024-09-30	$172,016	26,262	+7.0%	Shares	Sole	2024-11-08
2024-06-30	$178,016	24,554	-59.7%	Shares	Sole	2024-07-25
2024-03-31	$462,231	60,900	+37726.1%	Shares	Sole	2024-04-25
2023-03-31	$729	161	+56.3%	Shares	Sole	2023-04-27
2022-12-31	$425	103	-66.3%	Shares	Sole	2023-02-02
2022-09-30	$979	306	+565.2%	Shares	Sole	2022-11-04
2022-03-31	$186	46	-94.8%	Shares	Sole	2022-05-02
2021-12-31	$9,516	882	+461.8%	Shares	Sole	2022-02-23
2021-09-30	$1,810	157	0.0%	Shares	Sole	2021-10-28
2021-06-30	$1,541	157	—	Shares	Sole	2021-08-12
No filing history on record for this holder in this stock.