SIMPLEX TRADING, LLC

Position in ELDN — Eledon Pharmaceuticals, Inc.

CIK 1488542 CHICAGO, IL

Position in ELDN

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

Position Value

$349,072

+$307,640 QoQ

Shares Held

88,597

+453.8% QoQ

Ownership

0.109%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

#40

of 159 holders

Holding Since

Jun 2021

14 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Healthcare · as of Jun 30, 2026

SIMPLEX TRADING, LLC holds $82,538,439 across 183 Biotechnology names. ELDN ranks #43 (0.4% 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

14 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$349,072	88,597	+453.8%	Shares	Sole	2026-08-12
2025-09-30	$41,432	15,997	+93.4%	Shares	Sole	2025-11-12
2025-06-30	$22,419	8,273	-17.2%	Shares	Sole	2025-08-05
2025-03-31	$33,869	9,991	-4.3%	Shares	Sole	2025-05-12
2024-12-31	$43,000	10,437	+223.8%	Shares	Sole	2025-02-11
2023-12-31	$5	3,223	-11.0%	Shares	Sole	2024-02-02
2023-09-30	$4	3,623	+1546.8%	Shares	Sole	2023-11-01
2023-06-30	$301	220	+218.8%	Shares	Sole	2023-08-04
2023-03-31	$162	69	-76.0%	Shares	Sole	2023-04-27
2022-06-30	$700	287	-82.8%	Shares	Sole	2022-08-03
2022-03-31	$6,583	1,671	-38.5%	Shares	Sole	2022-05-02
2021-12-31	$11,981	2,717	+7662.9%	Shares	Sole	2022-02-23
2021-09-30	$216	35	0.0%	Shares	Sole	2021-10-28
2021-06-30	$276	35	—	Shares	Sole	2021-08-12
No filing history on record for this holder in this stock.