McCarthy Sean A. 4

4 · CytomX Therapeutics, Inc. · Filed Feb 4, 2026

AI-generated summary of this filing

Updated Feb 4, 2026

CytomX (CTMX) CEO Sean McCarthy Receives RSU Awards

What Happened

Sean A. McCarthy, CEO and Director of CytomX Therapeutics (CTMX), was granted equity awards on Feb 2, 2026 totaling 1,190,000 units: 210,000 shares (award code A) and 980,000 derivative awards (code A). Both grants show $0.00 per share at grant (typical for RSUs/compensation awards), so no cash was paid.

Key Details

Transaction date: 2026-02-02; Form 4 filed 2026-02-04 (timely within the usual 2-business-day window).
Price reported: $0.00 per share for both grants (i.e., restricted stock units/awards).
Total units granted: 210,000 + 980,000 = 1,190,000 awards.
Shares owned after transaction: not specified in the supplied summary of the filing.
Footnotes from the filing:
- F1: These constitute restricted stock units (RSUs); 1/3 of the RSUs vest annually on March 15, with the first vesting on March 15, 2027, subject to continued service.
- F2: The filing states “Includes 698,750 RSUs” (as reported in the filing).
- F3: For certain awards, 1/48th vests monthly beginning Feb 2, 2026, with full vesting on the fourth anniversary, subject to continued service.
- F4: Some shares are held by the Sean A. McCarthy 2018 Trust, of which he is trustee.
Filing status: timely (no late filing flag reported).

Context

These awards appear to be time-based compensation (RSUs and/or time-vesting derivative awards) that convert into common stock only upon vesting; no shares were sold or purchased in this filing. Such grants are common executive compensation and reflect future vesting tied to continued service rather than an immediate market trade.

Form 4

Period: 2026-02-02

DirectorCEO

Transactions

Award
Common Stock
[F1][F2]
2026-02-02+210,000→ 1,197,891 total
Award
Stock Option (Right to Buy)
[F3]
2026-02-02+980,000→ 980,000 total
Exercise: $6.09Exp: 2036-02-01→ Common Stock (980,000 underlying)

Holdings

Footnotes (4)

[F1]Constitute restricted stock units ("RSUs") for which the Reporting Person is entitled to receive one (1) share of Common Stock for each RSU upon vesting. 1/3rd of the RSUs vest annually on March 15 of each year, with the first 1/3rd vesting on March 15, 2027, subject to the Reporting Person continuing as a service provider through each such date.
[F2]Includes 698,750 RSUs.
[F3]1/48th of the shares subject to the option vest on each monthly anniversary measured from February 2, 2026 (the "Vesting Commencement Date"), such that 100% of the shares subject to the option will be fully vested and exercisable on the fourth anniversary of the Vesting Commencement Date, subject to the Reporting Person's continued service to the Issuer through each such date.
[F4]Shares held by Sean A. McCarthy 2018 Trust, of which the Reporting Person is trustee.

Signature

/s/ Christopher Ogden, as Attorney-in-Fact for Sean A. McCarthy|2026-02-04

1 file