Insider holders · CIK 0001501989
CytomX Therapeutics, Inc. · CTMX
Every insider with a reported Table I holding at this company, ranked by their last-reported share count. A balance is only as fresh as its filing — the report date sits next to every row on purpose. ← Back to activity
| Insider | Direct shares | Indirect shares | Total reported | Last report (ET) | From |
|---|---|---|---|---|---|
| Kevin P Starr10% Owner | 85,509 | 5,170,348 | 5,255,857 | Oct 19, 2017 · 4:00 pm EDT | Form 4 |
| Robert I Tepper10% Owner | 85,509 | 4,320,348 | 4,405,857 | Oct 19, 2017 · 4:00 pm EDT | Form 4 |
| Timothy M ShannonDirector | 448 | 3,244,381 | 3,244,829 | Dec 1, 2016 · 2:35 pm EST | Form 4 |
| Canaan Partners IX LLCDirector | — | 2,494,381 | 2,494,381 | Mar 28, 2017 · 1:36 pm EDT | Form 4 |
| Canaan IX L.P.Director | — | 2,494,381 | 2,494,381 | Mar 28, 2017 · 1:36 pm EDT | Form 4 |
| Hadley Harbor Master Investors (Cayman) L.P.10% Owner | 749,055 | — | 749,055 | Oct 14, 2015 · 3:36 pm EDT | Form 4 |
| Christopher OgdenChief Financial Officer | 295,324 | — | 295,324 | Jun 17, 2026 · 6:38 pm EDT | Form 4 |
| Deerfield Mgmt III, L.P.10% Owner | — | 275,000 | 275,000 | Oct 14, 2015 · 12:34 pm EDT | Form 4 |
| Deerfield Private Design Fund III, L.P.10% Owner | — | 275,000 | 275,000 | Oct 14, 2015 · 12:34 pm EDT | Form 4 |
| Deerfield Special Situations Fund, L.P.10% Owner | — | 275,000 | 275,000 | Oct 14, 2015 · 12:34 pm EDT | Form 4 |
| James E Flynn10% Owner | — | 275,000 | 275,000 | Oct 14, 2015 · 12:34 pm EDT | Form 4 |
| Deerfield Mgmt L.P.10% Owner | — | 275,000 | 275,000 | Oct 14, 2015 · 12:34 pm EDT | Form 4 |
| DEERFIELD MANAGEMENT CO10% Owner | — | 275,000 | 275,000 | Oct 14, 2015 · 12:34 pm EDT | Form 4 |
| Frederick W GluckDirector | 240,915 | 3,200 | 244,115 | Jun 15, 2018 · 5:47 pm EDT | Form 4 |
| Sean A. McCarthyPresident and CEO | 82,531 | 154,237 | 236,768 | Dec 6, 2018 · 1:57 pm EST | Form 4 |
| Alejandra CarvajalChief Legal Officer | 100,000 | — | 100,000 | Aug 5, 2026 · 7:33 pm EDT | Form 4 |
| Third Rock Ventures GP, L.P.10% Owner | 85,509 | — | 85,509 | Oct 19, 2017 · 4:00 pm EDT | Form 4 |
| TRV GP, LLC10% Owner | 85,509 | — | 85,509 | Oct 19, 2017 · 4:00 pm EDT | Form 4 |
| THIRD ROCK VENTURES LP10% Owner | 85,509 | — | 85,509 | Oct 19, 2017 · 4:00 pm EDT | Form 4 |
| Mark J Levin10% Owner | 85,509 | — | 85,509 | Oct 19, 2017 · 4:00 pm EDT | Form 4 |
| II Robert C. GoeltzChief Financial Officer | 32,756 | — | 32,756 | May 16, 2017 · 4:57 pm EDT | Form 4 |
| Rachel HumphreyChief Medical Officer | 30,234 | — | 30,234 | Mar 5, 2018 · 6:59 pm EST | Form 4 |
| William Michael KavanaughCSO, Head Res.&Non-Clin. Dev. | 19,047 | — | 19,047 | Dec 12, 2017 · 2:35 pm EST | Form 4 |
| Neil ExterDirector | 0 | 11,199 | 11,199 | Mar 27, 2017 · 7:25 pm EDT | Form 4 |
| Lloyd A RowlandGeneral Counsel | 9,979 | — | 9,979 | Mar 5, 2019 · 2:57 pm EST | Form 4 |
| Debanjan RayChief Financial Officer | 5,928 | — | 5,928 | Dec 14, 2018 · 3:23 pm EST | Form 4 |
| Cynthia J LaddSenior VP and General Counsel | 3,000 | — | 3,000 | Oct 16, 2015 · 10:19 am EDT | Form 4 |
Balances come from each insider’s most recent filing that reports a Table I holding; an insider who left the company years ago still appears with their last-known figure and its date. Indirect totals collapse multiple vehicles (trusts, LLCs) into one number — open the filing for the breakdown. Shares as filed, not split-adjusted.