CTMX - Cytomx Therapeutics, Inc.

Name: Cytomx Therapeutics, Inc. Insider Trading Data
Creator: U.S. Securities and Exchange Commission
License: https://www.sec.gov/privacy#accessibility

CTMX sits in the Biotechnology industry within the Health Care sector, so this activity is best read against the sector's broader insider trend.

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Insider Ownership

Role	Insider	Shares	Value	30d
CEO	McCarthy Sean A.	1.08M	$6.93M	-
VP	Belvin Marcia	300.8K	$1.93M	-
CFO	Ogden Christopher	295.3K	$900.7K	-
Other	Chu Yu-Waye	189.4K	$1.22M	-
Other	Carvajal Alejandra	100.0K	-	-

Activity

Buys and sells only

Transactions

10 filings

Date	Insider	Role	Type	Shares	Price	Value	Chg%	3M	12M
Jun 15, 2026	Ogden Christopher50	Chief Financial Officer	Sell	1,624	$3.05	$4,953.20	-0.5%	+5.3%	-
Mar 17, 2026	McCarthy Sean A.67	CEO	Sell10b5-1	118,969	$6.42	$764,137.89	-9.9%	-44.2%	-
Mar 17, 2026	Ogden Christopher50	Chief Financial Officer	Sell	19,323	$6.42	$124,111.63	-6.1%	-44.2%	-
Mar 17, 2026	Chu Yu-Waye72	Chief Medical Officer	Sell	21,279	$6.42	$136,675.02	-10.1%	-44.2%	-
Mar 17, 2026	Belvin Marcia49	SVP, Chief Scientific Officer	Sell	31,492	$6.42	$202,273.12	-9.5%	-44.2%	-
Nov 6, 2025	McCarthy Sean A.67	CEO	Sell10b5-1	101,793	$4.54	$461,906.10	-9.3%	+35.3%	-
Nov 6, 2025	McCarthy Sean A.67	CEO	Sale+OE10b5-1	101,793	$4.54	$461,906.10	-8.5%	+35.3%	-
Jun 16, 2025	Belvin Marcia49	SVP, Chief Scientific Officer	Sale+OE	13,884	$2.69	$37,334.08	-4.9%	-19.1%	+19.1%
Jun 16, 2025	McCarthy Sean A.67	CEO	Sale+OE	55,511	$2.69	$149,263.53	-4.8%	-19.1%	+19.1%
Jun 16, 2025	Ogden Christopher50	Chief Financial Officer	Sale+OE	12,255	$2.72	$33,381.43	-5.1%	-19.1%	+19.1%

Understand these filings

How to Read SEC Form 4 Filings →Understanding Insider Buying Signals →What is Insider Trading? A Complete Guide →Cluster Buying: When Multiple Insiders Buy Together →

Insider	Role	Shares	Value	Buys	Sells

Date	Ticker	Insider	Role	Type	Shares	Price	Value	Chg%	SEC