SIMPLEX TRADING, LLC

Position in FULC — Fulcrum Therapeutics, Inc.

CIK 1488542 CHICAGO, IL

Position in FULC

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

Position Value

$321,679

+$231,041 QoQ

Shares Held

41,940

+423.3% QoQ

Ownership

0.063%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

#79

of 168 holders

Holding Since

Mar 2022

14 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 $69,553,517 across 195 Biotechnology names. FULC ranks #39 (0.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	MRNA	Moderna, Inc.	219,573	$11,154,308
2	APGE	Apogee Therapeutics, Inc.	77,808	$6,549,099
3	ERAS	Erasca, Inc.	252,747	$4,089,446
4	QURE	uniQure N.V.	231,769	$3,789,423
5	BBIO	BridgeBio Pharma, Inc.	41,434	$3,076,888
6	CORT	Corcept Therapeutics Inc	69,515	$2,802,149
7	ROIV	Roivant Sciences Ltd.	88,035	$2,438,569
8	INSM	INSMED Inc	10,715	$1,752,116

14 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$321,679	41,940	+423.3%	Shares	Sole	2026-05-14
2025-12-31	$90,638	8,014	-37.4%	Shares	Sole	2026-02-11
2025-09-30	$117,760	12,800	-88.3%	Shares	Sole	2025-11-12
2025-06-30	$752,431	109,365	+3514.2%	Shares	Sole	2025-08-05
2025-03-31	$8,714	3,026	-71.1%	Shares	Sole	2025-05-12
2024-12-31	$49,138	10,455	-79.0%	Shares	Sole	2025-02-11
2024-09-30	$177,657	49,764	-12.9%	Shares	Sole	2024-11-08
2024-06-30	$354,224	57,133	+85.9%	Shares	Sole	2024-07-25
2024-03-31	$290,176	30,739	+20.9%	Shares	Sole	2024-04-25
2023-09-30	$112,882	25,424	+5575.0%	Shares	Sole	2023-11-01
2023-06-30	$1,478	448	-63.9%	Shares	Sole	2023-08-04
2023-03-31	$3,534	1,240	-91.1%	Shares	Sole	2023-04-27
2022-06-30	$68,624	14,005	-15.8%	Shares	Sole	2022-08-03
2022-03-31	$393,228	16,627	—	Shares	Sole	2022-05-02
No filing history on record for this holder in this stock.