CTMX CytomX Therapeutics, Inc.
CytomX Therapeutics, Inc. (CTMX) Institutional Ownership
What the institutions did with CTMX last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| FMR LLC | 32.7M | 15.3% |
| Kynam Capital Management, LP | 21.7M | 10.2% |
| BlackRock, Inc. | 17.6M | 8.2% |
| BANK OF AMERICA CORP /DE/ | 15.1M | 7.1% |
| STATE STREET CORP | 11.7M | 5.5% |
| PERCEPTIVE ADVISORS LLC | 10.4M | 4.9% |
| VANGUARD CAPITAL MANAGEMENT LLC | 8.5M | 4.0% |
| Point72 Asset Management, L.P. | 7.8M | 3.7% |
| WELLINGTON MANAGEMENT GROUP LLP | 5.2M | 2.4% |
| Venrock Adviser, LLC | 5.0M | 2.3% |
| BAKER BROS. ADVISORS LP | 5.0M | 2.3% |
| GEODE CAPITAL MANAGEMENT, LLC | 4.7M | 2.2% |
| Elmind Capital, LP | 4.6M | 2.1% |
| Nextech Invest, Ltd. | 4.4M | 2.1% |
| TWO SIGMA INVESTMENTS, LP | 4.1M | 1.9% |
| Eversept Partners, LP | 3.6M | 1.7% |
| UBS Group AG | 3.5M | 1.6% |
| Siren, L.L.C. | 3.5M | 1.6% |
| ADAR1 Capital Management, LLC | 3.4M | 1.6% |
| CITADEL ADVISORS LLC | 3.1M | 1.5% |
| MARSHALL WACE, LLP | 3.0M | 1.4% |
| Woodline Partners LP | 2.0M | 1.0% |
| GOLDMAN SACHS GROUP INC | 2.0M | 0.9% |
| DIMENSIONAL FUND ADVISORS LP | 1.9M | 0.9% |
| Qube Research & Technologies Ltd | 1.8M | 0.9% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| BlackRock, Inc. | Increased | 5.2M | 17.6M | +12.3M |
| Kynam Capital Management, LP | Increased | 15.0M | 21.7M | +6.7M |
| STATE STREET CORP | Increased | 5.7M | 11.7M | +6.1M |
| Venrock Adviser, LLC | Reduced | 10.0M | 5.0M | -5.0M |
| BANK OF AMERICA CORP /DE/ | Increased | 10.2M | 15.1M | +4.9M |
| Jefferies Financial Group Inc. | Sold Out | 3.1M | 0 | -3.1M |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 2.1M | 4.7M | +2.6M |
| CITADEL ADVISORS LLC | Reduced | 5.4M | 3.1M | -2.3M |
| MILLENNIUM MANAGEMENT LLC | Reduced | 3.7M | 1.7M | -2.0M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 1.9M | 90.7K | -1.8M |
| WELLINGTON MANAGEMENT GROUP LLP | Increased | 3.6M | 5.2M | +1.6M |
| TWO SIGMA INVESTMENTS, LP | Increased | 2.7M | 4.1M | +1.4M |
| TUDOR INVESTMENT CORP ET AL | New | 0 | 1.4M | +1.4M |
| MARSHALL WACE, LLP | Reduced | 4.1M | 3.0M | -1.1M |
| Patient Square Capital LP | Sold Out | 1.1M | 0 | -1.1M |
| NORTHERN TRUST CORP | Increased | 612.1K | 1.7M | +1.1M |
| JANE STREET GROUP, LLC | Sold Out | 997.5K | 0 | -997.5K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 794.8K | 1.8M | +956.4K |
| EVENTIDE ASSET MANAGEMENT, LLC | Sold Out | 900.0K | 0 | -900.0K |
| Trexquant Investment LP | Sold Out | 898.8K | 0 | -898.8K |
| FMR LLC | Increased | 32.0M | 32.7M | +759.3K |
| Balyasny Asset Management L.P. | Sold Out | 730.8K | 0 | -730.8K |
| DV Trading LLC | Sold Out | 714.0K | 0 | -714.0K |
| Seven Fleet Capital Management LP | Increased | 371.4K | 1.1M | +714.0K |
| SPHERA FUNDS MANAGEMENT LTD. | Increased | 220.0K | 879.0K | +659.0K |
| BNP PARIBAS FINANCIAL MARKETS | Reduced | 606.3K | 31.7K | -574.6K |
| Informed Momentum Co LLC | Sold Out | 565.1K | 0 | -565.1K |
| Longaeva Partners L.P. | Sold Out | 550.0K | 0 | -550.0K |
| GOLDMAN SACHS GROUP INC | Increased | 1.5M | 2.0M | +543.8K |
| Nuveen, LLC | New | 0 | 448.0K | +448.0K |
| Qube Research & Technologies Ltd | Reduced | 2.2M | 1.8M | -425.0K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Increased | 128.8K | 549.9K | +421.1K |
| Velan Capital Investment Management LP | Reduced | 540.0K | 120.0K | -420.0K |
| GILDER GAGNON HOWE & CO LLC | Reduced | 1.1M | 704.4K | -415.9K |
| 683 Capital Management, LLC | Reduced | 425.0K | 20.0K | -405.0K |
| Bank of New York Mellon Corp | Increased | 289.9K | 684.5K | +394.7K |
| Eversept Partners, LP | Increased | 3.2M | 3.6M | +370.0K |
| Assenagon Asset Management S.A. | Increased | 364.2K | 728.3K | +364.2K |
| UBS Group AG | Increased | 3.1M | 3.5M | +348.2K |
| PERCEPTIVE ADVISORS LLC | Increased | 10.1M | 10.4M | +340.4K |
| Jump Financial, LLC | Increased | 10.7K | 347.4K | +336.7K |
| MORGAN STANLEY | Reduced | 520.5K | 190.8K | -329.7K |
| SEVEN GRAND MANAGERS, LLC | Sold Out | 325.0K | 0 | -325.0K |
| Soleus Capital Management, L.P. | Sold Out | 300.0K | 0 | -300.0K |
| Caption Management, LLC | Reduced | 573.2K | 300.0K | -273.2K |
| Brevan Howard Capital Management LP | Sold Out | 269.2K | 0 | -269.2K |
| SIMPLEX TRADING, LLC | Reduced | 248.4K | 10.3K | -238.2K |
| Scientech Research LLC | Sold Out | 230.6K | 0 | -230.6K |
| Burkehill Global Management, LP | Sold Out | 225.0K | 0 | -225.0K |
| RHUMBLINE ADVISERS | New | 0 | 222.5K | +222.5K |
| DAFNA Capital Management LLC | Increased | 230.0K | 438.4K | +208.4K |
| SEI INVESTMENTS CO | Reduced | 248.2K | 40.5K | -207.7K |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 8.7M | 8.5M | -207.7K |
| Centiva Capital, LP | Sold Out | 200.0K | 0 | -200.0K |
| DEUTSCHE BANK AG\ | Increased | 463.4K | 663.0K | +199.6K |
| Focus Partners Wealth | New | 0 | 197.9K | +197.9K |
| CITIGROUP INC | Increased | 101.8K | 287.9K | +186.1K |
| Y-Intercept (Hong Kong) Ltd | Sold Out | 167.5K | 0 | -167.5K |
| VANGUARD FIDUCIARY TRUST CO | Increased | 1.1M | 1.3M | +164.5K |
| Invesco Ltd. | Increased | 61.6K | 220.2K | +158.7K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.