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Who

Sean A. McCarthy

CEO

Company insider

Files Form 4 as: CEO, CytomX Therapeutics.

Every Form 4 they filed

In numbers

Trades disclosed
181
Buys
0
Sells
41
Bought
$0
Sold
$10.3M
Companies
1
Companies where not an officer
0
First trade
21 Jan 2016
Last trade
17 Mar 2026
Last filed
16 Oct 2026

Companies traded

Where they are an officer
CTMX CytomX TherapeuticsDirector, Officer · Biotechnology · last 17 Mar 20260 buys · 41 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
20Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
17 Mar 2026filed 19 Mar 2026CTMX CytomX TherapeuticsBiotechnologySEC FORM 4 Sold$764K118,969 at $6.42filing
17 Mar 2026filed 19 Mar 2026CTMX CytomX TherapeuticsBiotechnologySEC FORM 4 Sold$764K118,969 at $6.42filing
2 Feb 2026filed 4 Feb 2026CTMX CytomX TherapeuticsBiotechnologySEC FORM 4 Code A—210,000 at $0.00filing
2 Feb 2026filed 4 Feb 2026CTMX CytomX Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—980,000 at $0.00filing
2 Feb 2026filed 4 Feb 2026CTMX CytomX Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—980,000 at $0.00filing
2 Feb 2026filed 4 Feb 2026CTMX CytomX TherapeuticsBiotechnologySEC FORM 4 Code A—210,000 at $0.00filing
6 Nov 2025filed 16 Oct 2026CTMX CytomX TherapeuticsBiotechnologySEC FORM 4 Code M$162K101,793 at $1.59filing
6 Nov 2025filed 16 Oct 2026CTMX CytomX TherapeuticsBiotechnologySEC FORM 4 Sold$462K101,793 at $4.54filing
6 Nov 2025filed 16 Oct 2026CTMX CytomX Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code M—101,793 at $0.00filing
6 Nov 2025filed 10 Nov 2025CTMX CytomX TherapeuticsBiotechnologySEC FORM 4 Sold$462K101,793 at $4.54filing
26 Sep 2025filed 30 Sep 2025CTMX CytomX Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—570,000 at $0.00filing
26 Sep 2025filed 30 Sep 2025CTMX CytomX Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—285,000 at $0.00filing
16 Jun 2025filed 17 Jun 2025CTMX CytomX TherapeuticsBiotechnologySEC FORM 4 Sold$149K55,511 at $2.69filing
13 Jun 2025filed 17 Jun 2025CTMX CytomX Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code M—150,000 at $0.00filing
13 Jun 2025filed 17 Jun 2025CTMX CytomX TherapeuticsBiotechnologySEC FORM 4 Code M—150,000 at $0.00filing
18 Mar 2025filed 20 Mar 2025CTMX CytomX TherapeuticsBiotechnologySEC FORM 4 Sold$23K37,656 at $0.60filing
4 Feb 2025filed 6 Feb 2025CTMX CytomX Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—800,000 at $0.00filing
4 Feb 2025filed 6 Feb 2025CTMX CytomX Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—390,000 at $0.00filing
4 Feb 2025filed 6 Feb 2025CTMX CytomX TherapeuticsBiotechnologySEC FORM 4 Code A—180,000 at $0.00filing
4 Feb 2025filed 6 Feb 2025CTMX CytomX TherapeuticsBiotechnologySEC FORM 4 Code A—195,000 at $0.00filing

News

No headline names them, or the companies they trade most, lately.

Sectors

Health Care41

Buys in green, sells in red, by the company’s sector.

Related people

Alejandra CarvajalChief Legal Officer · Chief Legal Officer at CytomX Therapeutics, filing Form 4 there in the last year
Charles S. FuchsPresident, R&D · Director at CytomX Therapeutics, filing Form 4 there in the last year
Halley E. GilbertDirector · Director at CytomX Therapeutics, filing Form 4 there in the last year
Matthew P. YoungDirector · Director at CytomX Therapeutics, filing Form 4 there in the last year
Mani MohindruChief Executive Officer · Director at CytomX Therapeutics, filing Form 4 there in the last year