CTMX CytomX Therapeutics, Inc.: institutional ownership and insider trading
186 funds reported holding $844M of CytomX Therapeutics, Inc. in their latest 13F filings; in Q2 2026 funds net bought $62.7M, with 44 new positions and 46 funds selling out; over the last 12 months insiders bought $0 and sold $1.69M on the open market.
Famous investors holding CTMX
- Two Sigma (Two Sigma Investments): $15.5M, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $12.5M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $6.32M, 0.0% of the portfolio
Largest institutional holders of CTMX
- FMR LLC — $123M
- Kynam Capital Management, LP — $81.4M
- BlackRock, Inc. (BLK) — $65.8M
- BANK OF AMERICA CORP /DE/ (BAC, BAC-PB, BAC-PE, BAC-PK, BAC-PL, BAC-PM, BAC-PN, BAC-PO, BAC-PP, BML-PG, BML-PH, BML-PJ, BML-PL) — $56.6M
- STATE STREET CORP (STT, STT-PG) — $44.1M
- PERCEPTIVE ADVISORS LLC — $39.1M
- VANGUARD GROUP INC — $36.1M
- VANGUARD CAPITAL MANAGEMENT LLC — $32.0M
- Point72 Asset Management, L.P. — $29.3M
- WELLINGTON MANAGEMENT GROUP LLP — $19.4M
Recent CTMX insider trades
- Jun 15, 2026: Ogden Christopher sold 1,624 shares ($4.95K)
- Mar 17, 2026: Ogden Christopher sold 19,323 shares ($124K)
- Mar 17, 2026: Belvin Marcia sold 31,492 shares ($202K)
- Mar 17, 2026: McCarthy Sean A. sold 118,969 shares ($764K)
5%+ owners
- Kynam Capital Management, LP: 10.0% (Schedule 13G/A, filed Aug 14, 2026)
- BlackRock, Inc.: 7.6% (Schedule 13G, filed Jul 27, 2026)
- BANK OF AMERICA CORP /DE/: 7.0% (Schedule 13G, filed Aug 3, 2026)
- Patrick G. Enright: 7.0% (Schedule 13G/A, filed May 15, 2026)
- STATE STREET CORPORATION: 5.4% (Schedule 13G, filed Aug 7, 2026)