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

List of insiders holdings for CytomX Therapeutics Inc.:
  1. Shares directly owned by the insider.
  2. Shares indirectly owned by the insider.
  3. Total shares owned by the insider (sum of shares directly and indirectly owned).
  4. Total market value if available.
  5. 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 NameReport
Date Time		Shares Owned
Directly
Indirectly		Total
Shares Owned		Filing
1BVF 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 19:55:345,769,231
0		5,769,231Form 13G
2SHANNON TIMOTHY M
Director		2016-12-01 14:35:01448
3,244,381		3,244,829Form 4
3McCarthy Sean A.
CEO		2026-03-19 18:35:341,078,922
93,158		1,172,080Form 4
4Flynn 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 12:37:56946,024
0		946,024Form 13G
5Hadley Harbor Master Investors (Cayman) L.P.
10% Owner		2015-10-14 15:36:21749,055
0		749,055Form 4
6Goeltz II Robert C.
Chief Financial Officer		2017-05-16 16:57:43323,325
0		323,325Form 4
7BELVIN MARCIA
SVP, Chief Scientific Officer		2026-03-19 18:25:33300,760
0		300,760Form 4
8Ogden Christopher
Chief Financial Officer		2026-03-19 18:21:13296,948
0		296,948Form 4
9THIRD 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 16:07:03227,653
0		227,653Form 13G
10Chu Yu-Waye
Chief Medical Officer		2026-03-19 18:41:25189,446
0		189,446Form 4
11Landau Jeffrey B
Chief Business Officer		2024-08-22 18:01:51119,056
7,680		126,736Form 4
12ROWLAND LLOYD A
General Counsel		2025-03-20 16:32:22120,594
0		120,594Form 4
13Lester Rachael
Chief Business Officer		2026-02-04 16:28:36120,000
0		120,000Form 4
14Kavanaugh William Michael
CSO, Head Res.&Non-Clin. Dev.		2020-02-19 18:41:18120,000
0		120,000Form 4
15HUMPHREY RACHEL
Chief Medical Officer		2019-01-29 19:00:0390,000
0		90,000Form 4
16RAY DEBANJAN
Chief Financial Officer		2019-01-29 18:57:0990,000
0		90,000Form 4
17LADD CYNTHIA J
Senior VP and General Counsel		2017-01-27 13:52:1584,000
0		84,000Form 4
18Peterson Amy C.
EVP, Chief Development Officer		2023-03-20 18:43:2658,433
0		58,433Form 4
19Campoy Carlos
Chief Financial Officer		2023-03-20 18:43:3338,224
0		38,224Form 4
20Jones Elaine V
Director		2025-06-13 16:17:2338,000
0		38,000Form 4
21Su Zhen
Director		2025-06-13 16:19:1138,000
0		38,000Form 4
22Young Matthew P.
Director		2025-06-13 16:18:4738,000
0		38,000Form 4
23Mohindru Mani
Director		2025-06-13 16:18:1938,000
0		38,000Form 4
24Meyers James R
Director		2025-06-13 16:17:5038,000
0		38,000Form 4
25Gilbert Halley E
Director		2025-06-13 16:16:5638,000
0		38,000Form 4
26Ashworth Alan
Director		2025-06-13 16:16:1538,000
0		38,000Form 4
27Knifsend Robin
Principal Accounting Officer		2020-02-21 12:34:4334,000
0		34,000Form 4
28HANNAH ALISON L.
Chief Medical Officer		2022-07-21 16:09:2531,898
0		31,898Form 4
29GLUCK FREDERICK W
Director		2022-06-17 16:05:3825,000
0		25,000Form 4
30Fuchs Charles S.
Director		2020-06-17 17:06:4820,000
0		20,000Form 4
31SCARLETT JOHN A
Director		2021-06-17 18:46:3920,000
0		20,000Form 4
32Huh Hoyoung
Director		2018-06-15 17:51:3614,000
0		14,000Form 4
33McCourt Marion
Director		2017-06-22 13:58:1714,000
0		14,000Form 4
34Exter Neil
Director		2017-06-22 13:56:5814,000
0		14,000Form 4
35Canaan IX L.P.
Canaan Partners IX LLC
Director		2017-07-07 08:40:320
0		0Form 13G