Who Owns CYTOMX THERAPEUTICS INC. (CTMX)? -- Institutional Holders (2026-06-30)
221 institutions reported holding $808.2M of CYTOMX THERAPEUTICS INC. (CTMX) in SEC 13F filings for 2026-06-30. Largest institutional holders: FMR LLC ($122.7M), Kynam Capital Management, LP ($81.4M), BlackRock, Inc. ($65.8M), BANK OF AMERICA CORP /DE/ ($56.6M), VANGUARD GROUP INC ($44.2M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | FMR LLC | $122.7M | 32.7M | Added |
| 2 | Kynam Capital Management, LP | $81.4M | 21.7M | Added |
| 3 | BlackRock, Inc. | $65.8M | 17.6M | Added |
| 4 | BANK OF AMERICA CORP /DE/ | $56.6M | 15.1M | Added |
| 5 | VANGUARD GROUP INC | $44.2M | 11.8M | Added |
| 6 | STATE STREET CORP | $44.1M | 11.7M | Added |
| 7 | PERCEPTIVE ADVISORS LLC | $39.1M | 10.4M | Added |
| 8 | Point72 Asset Management, L.P. | $29.3M | 7.8M | Trimmed |
| 9 | WELLINGTON MANAGEMENT GROUP LLP | $19.4M | 5.2M | Added |
| 10 | VR ADVISER, LLC | $18.7M | 5.0M | Trimmed |
| 11 | BAKER BROS. ADVISORS LP | $18.7M | 5.0M | Hold |
| 12 | GEODE CAPITAL MANAGEMENT, LLC | $17.5M | 4.7M | Added |
| 13 | Elmind Capital, LP | $17.1M | 4.5M | Hold |
| 14 | Nextech Invest, Ltd. | $16.7M | 4.4M | Hold |
| 15 | TWO SIGMA INVESTMENTS, LP | $15.5M | 4.1M | Added |
| 16 | Eversept Partners, LP | $13.3M | 3.6M | Added |
| 17 | UBS Group AG | $13.0M | 3.5M | Added |
| 18 | Siren, L.L.C. | $13.0M | 3.5M | Hold |
| 19 | ADAR1 Capital Management, LLC | $12.6M | 3.4M | Trimmed |
| 20 | CITADEL ADVISORS LLC | $12.5M | 3.3M | Trimmed |
| 21 | MARSHALL WACE, LLP | $11.3M | 3.0M | Trimmed |
| 22 | Woodline Partners LP | $7.7M | 2.0M | Added |
| 23 | GOLDMAN SACHS GROUP INC | $7.5M | 2.0M | Added |
| 24 | DIMENSIONAL FUND ADVISORS LP | $7.0M | 1.9M | Trimmed |
| 25 | Qube Research & Technologies Ltd | $6.8M | 1.8M | Trimmed |
Source: SEC Form 13F filings · as of 2026-06-30