CytomX Therapeutics Inc. (CTMX) - Insider Holders & Insider Ownership

List of insiders holdings for CytomX Therapeutics Inc.:

Shares directly owned by the insider.
Shares indirectly owned by the insider.
Total shares owned by the insider (sum of shares directly and indirectly owned).
Total market value if available.
Shares are not adjusted for stock split.

"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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#	Insider Holder Name	Report Date Time	Shares Owned Directly Indirectly	Total Shares Owned	Filing
1	BVF PARTNERS L P BIOTECHNOLOGY VALUE FUND L P BVF I GP LLC BIOTECHNOLOGY VALUE FUND II LP BVF II GP LLC Biotechnology Value Trading Fund OS LP BVF Partners OS Ltd. BVF GP HOLDINGS LLC BVF INC LAMPERT MARK N See Explanation of Responses	2025-07-09 19:55:34	5,769,231 0	5,769,231	Form 13G
2	SHANNON TIMOTHY M Director	2016-12-01 14:35:01	448 3,244,381	3,244,829	Form 4
3	McCarthy Sean A. CEO	2025-11-10 16:05:32	987,891 93,158	1,081,049	Form 4
4	Flynn James E Deerfield Mgmt L.P. DEERFIELD MANAGEMENT CO Deerfield Special Situations Fund L.P. Deerfield Mgmt III L.P. Deerfield Private Design Fund III L.P. Possible Member of 10% Group 10% Owner	2015-10-14 12:37:56	946,024 0	946,024	Form 13G
5	Hadley Harbor Master Investors (Cayman) L.P. 10% Owner	2015-10-14 15:36:21	749,055 0	749,055	Form 4
6	Lester Rachael Chief Business Officer	2025-10-29 16:50:51	650,000 0	650,000	Form 4
7	Goeltz II Robert C. Chief Financial Officer	2017-05-16 16:57:43	323,325 0	323,325	Form 4
8	THIRD ROCK VENTURES LP Third Rock Ventures GP L.P. TRV GP LLC LEVIN MARK J STARR KEVIN P TEPPER ROBERT I 10% Owner	2019-02-13 16:07:03	227,653 0	227,653	Form 13G
9	Chu Yu-Waye Chief Medical Officer	2025-09-30 18:39:31	131,250 0	131,250	Form 4
10	Landau Jeffrey B Chief Business Officer	2024-08-22 18:01:51	119,056 7,680	126,736	Form 4
11	ROWLAND LLOYD A General Counsel	2025-03-20 16:32:22	120,594 0	120,594	Form 4
12	Kavanaugh William Michael CSO, Head Res.&Non-Clin. Dev.	2020-02-19 18:41:18	120,000 0	120,000	Form 4
13	Ogden Christopher Chief Financial Officer	2025-09-30 18:38:27	117,400 0	117,400	Form 4
14	RAY DEBANJAN Chief Financial Officer	2019-01-29 18:57:09	90,000 0	90,000	Form 4
15	HUMPHREY RACHEL Chief Medical Officer	2019-01-29 19:00:03	90,000 0	90,000	Form 4
16	LADD CYNTHIA J Senior VP and General Counsel	2017-01-27 13:52:15	84,000 0	84,000	Form 4
17	Peterson Amy C. EVP, Chief Development Officer	2023-03-20 18:43:26	58,433 0	58,433	Form 4
18	BELVIN MARCIA SVP, Chief Scientific Officer	2025-09-30 18:37:42	54,450 0	54,450	Form 4
19	Campoy Carlos Chief Financial Officer	2023-03-20 18:43:33	38,224 0	38,224	Form 4
20	Ashworth Alan Director	2025-06-13 16:16:15	38,000 0	38,000	Form 4
21	Gilbert Halley E Director	2025-06-13 16:16:56	38,000 0	38,000	Form 4
22	Jones Elaine V Director	2025-06-13 16:17:23	38,000 0	38,000	Form 4
23	Meyers James R Director	2025-06-13 16:17:50	38,000 0	38,000	Form 4
24	Mohindru Mani Director	2025-06-13 16:18:19	38,000 0	38,000	Form 4
25	Young Matthew P. Director	2025-06-13 16:18:47	38,000 0	38,000	Form 4
26	Su Zhen Director	2025-06-13 16:19:11	38,000 0	38,000	Form 4
27	Knifsend Robin Principal Accounting Officer	2020-02-21 12:34:43	34,000 0	34,000	Form 4
28	HANNAH ALISON L. Chief Medical Officer	2022-07-21 16:09:25	31,898 0	31,898	Form 4
29	GLUCK FREDERICK W Director	2022-06-17 16:05:38	25,000 0	25,000	Form 4
30	SCARLETT JOHN A Director	2021-06-17 18:46:39	20,000 0	20,000	Form 4
31	Fuchs Charles S. Director	2020-06-17 17:06:48	20,000 0	20,000	Form 4
32	Huh Hoyoung Director	2018-06-15 17:51:36	14,000 0	14,000	Form 4
33	McCourt Marion Director	2017-06-22 13:58:17	14,000 0	14,000	Form 4
34	Exter Neil Director	2017-06-22 13:56:58	14,000 0	14,000	Form 4
35	Canaan IX L.P. Canaan Partners IX LLC Director	2017-07-07 08:40:32	0 0	0	Form 13G