SIMPLEX TRADING, LLC

Position in CTMX — CytomX Therapeutics, Inc.

CIK 1488542 CHICAGO, IL

Position in CTMX

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

Position Value

$38,572

-$1,129,086 QoQ

Shares Held

10,286

-95.9% QoQ

Ownership

0.005%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#155

of 178 holders

Holding Since

Mar 2020

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. CTMX ranks #110 (0.0% 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	$38,572	10,286	-95.9%	Shares	Sole	2026-08-12
2026-03-31	$1,167,658	248,438	+933.0%	Shares	Sole	2026-05-14
2025-12-31	$102,457	24,051	-29.0%	Shares	Sole	2026-02-11
2025-03-31	$21,530	33,853	+6577.1%	Shares	Sole	2025-05-12
2024-12-31	$522	507	-87.0%	Shares	Sole	2025-02-11
2024-06-30	$4	3,891	-35.8%	Shares	Sole	2024-07-25
2024-03-31	$13,219	6,064	+755.3%	Shares	Sole	2024-04-25
2023-06-30	$1	709	+4964.3%	Shares	Sole	2023-08-04
2022-06-30	$25	14	0.0%	Shares	Sole	2022-08-03
2022-03-31	$37	14	-99.8%	Shares	Sole	2022-05-02
2021-09-30	$31,395	6,168	0.0%	Shares	Sole	2021-10-28
2021-06-30	$39,043	6,168	+2290.7%	Shares	Sole	2021-08-12
2020-06-30	$2,149	258	-29.3%	Shares	Sole	2020-07-13
2020-03-31	$2,799	365	—	Shares	Sole	2020-04-29
No filing history on record for this holder in this stock.