Yu-Waye Chu

CIK: 0001854586

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)2 (28.6%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)5 (71.4%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

CTMX

CytomX Therapeutics, Inc.

Officer

Discretionary Trading P&L

Holdings

Transaction History (7 total)

CTMX
CytomX Therapeutics, Inc.
Mar 17, 2026
Sale(S)
Direct
21.3K shares at avg. $6.42$137K
CTMX
CytomX Therapeutics, Inc.
Feb 2, 2026
Award(A)
Direct
75K shares-
CTMX
CytomX Therapeutics, Inc.
Sep 26, 2025
Award(A)
Stock Option (Right to Buy)
Direct
87.5K shares-
CTMX
CytomX Therapeutics, Inc.
Sep 26, 2025
Award(A)
Performance Stock Units (PSUs)
Direct
43.8K shares-
CTMX
CytomX Therapeutics, Inc.
Mar 18, 2025
Sale(S)
Direct
4K shares at avg. $0.60$2K
CTMX
CytomX Therapeutics, Inc.
Feb 4, 2025
Award(A)
Direct
57.5K shares-
CTMX
CytomX Therapeutics, Inc.
Feb 4, 2025
Award(A)
Direct
56K shares-

		Type	Shares	Price		Ownership
Mar 17, 2026	CTMX CytomX Therapeutics, Inc.	Sale(S)	21,279	$6.42	$136,675	Direct
Feb 2, 2026	CTMX CytomX Therapeutics, Inc.	Award(A)	75,000	-	$0	Direct
Sep 26, 2025	CTMX CytomX Therapeutics, Inc.	Award(A) Stock Option (Right to Buy)	87,500	-	-	Direct
Sep 26, 2025	CTMX CytomX Therapeutics, Inc.	Award(A) Performance Stock Units (PSUs)	43,750	-	-	Direct
Mar 18, 2025	CTMX CytomX Therapeutics, Inc.	Sale(S)	4,025	$0.60	$2,411	Direct
Feb 4, 2025	CTMX CytomX Therapeutics, Inc.	Award(A)	57,500	-	-	Direct
Feb 4, 2025	CTMX CytomX Therapeutics, Inc.	Award(A)	56,000	-	-	Direct

1-7 of 7 transactions

About Chu Yu-Waye

Chu Yu-Waye (SEC CIK 0001854586) files insider reports with the SEC as Chief Medical Officer of CytomX Therapeutics, Inc. (CTMX).

Signal8 holds 5 ownership filings by Chu Yu-Waye, all Form 4s, filed between Feb 6, 2025 and Mar 19, 2026. Those filings report 7 transactions, from Feb 4, 2025 to Mar 17, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Chu Yu-Waye's filings is in SOUTH SAN FRANCISCO, CA.

Recent filings by Chu Yu-Waye

Mar 17, 2026: Open-market sale of CTMX shares (Form 4, code S).
Feb 2, 2026: Grant or award of CTMX shares (Form 4, code A).
Sep 26, 2025: Grants or awards of CTMX derivative securities (2 lines, Form 4, code A).
Mar 18, 2025: Open-market sale of CTMX shares (Form 4, code S).
Feb 4, 2025: Grants or awards of CTMX shares (2 lines, Form 4, code A).

Other insiders filing for CytomX Therapeutics, Inc. (CTMX)

McCarthy Sean A., CEO
Carvajal Alejandra, Chief Legal Officer
Fuchs Charles S., Director
Su Zhen, Director
Young Matthew P., Director
Mohindru Mani, Director

How to read Form 4 transaction codes