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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1501989	Cytomx Therapeutics Inc.	CTMX	Pharmaceutical Preparations (2834)	273521219

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1970752	Marcia Belvin	C/O Cytomx Therapeutics, Inc. 151 Oyster Point Blvd., Ste. 400 South San Francisco CA 94080	Svp, Chief Scientific Officer	No	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2024-08-20	11,250	$0.00	179,829	No	4	M	Direct
Common Stock	Disposition	2024-08-20	4,181	$1.23	175,648	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Performance Stock Units (PSUs)	Disposition	2024-08-20	11,250	$0.00	11,250	$0.00

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0			No	4	M	Direct

Footnotes

Represents vesting of a Performance Stock Unit ("PSU") award initially granted on August 10, 2022.
Includes 109,166 restricted stock units.
The shares were sold solely to satisfy tax or other government withholding obligations in connection with the vesting of PSUs reported herein.
Each PSU represents a contingent right to receive one share of the Issuer's Common Stock upon vesting. 50% of the PSUs vested on December 17, 2023 upon achievement of a certain performance-based milestone. In connection with the vesting reported herein, the remaining 50% of the PSUs vested upon achievement of a certain performance-based milestone.