CytomX Therapeutics, Inc. (CTMX) — Institutional Holders, Q2 2026
179 institutional investment managers reported a CTMX position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $798.3M. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
CTMX in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- BlackRockAdded · +12,331,542 sh+$46.2M
- Kynam Capital ManagementAdded · +6,690,000 sh+$25.1M
- STATE STREETAdded · +6,083,828 sh+$22.8M
- BANK OF AMERICAAdded · +4,879,832 sh+$18.3M
- GEODE CAPITAL MANAGEMENTAdded · +2,612,104 sh+$9.8M
Biggest sellers
- VR AdviserTrimmed · -5,000,000 sh-$18.8M
- LEUCADIA NATIONALSold out · -3,067,864 sh-$11.5M
- CITADEL ADVISORSTrimmed · -2,295,684 sh-$8.6M
- MILLENNIUM MANAGEMENTTrimmed · -1,974,360 sh-$7.4M
- SUSQUEHANNA INTERNATIONAL GROUP, LLPTrimmed · -1,778,942 sh-$6.7M
CTMX 13F holders ranked 1–100 of 179
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | FMR#1 · 32,714,937 sh | 32,714,937 | $122.7M | <0.01% | +2.4% |
| 2 | Kynam Capital Management#2 · 21,703,093 sh | 21,703,093 | $81.4M | 4.50% | +44.6% |
| 3 | BlackRock#3 · 17,559,822 sh | 17,559,822 | $65.8M | <0.01% | +235.9% |
| 4 | BANK OF AMERICA#4 · 15,082,617 sh | 15,082,617 | $56.6M | <0.01% | +47.8% |
| 5 | STATE STREET#5 · 11,747,236 sh | 11,747,236 | $44.1M | <0.01% | +107.4% |
| 6 | PERCEPTIVE ADVISORS#6 · 10,439,185 sh | 10,439,185 | $39.1M | 0.59% | +3.4% |
| 7 | VANGUARD CAPITAL MANAGEMENT#7 · 8,525,457 sh | 8,525,457 | $32.0M | <0.01% | -2.4% |
| 8 | Point72 Asset Management, L.P.#8 · 7,811,033 sh | 7,811,033 | $29.3M | 0.03% | -0.8% |
| 9 | WELLINGTON MANAGEMENT GROUP LLP#9 · 5,168,961 sh | 5,168,961 | $19.4M | <0.01% | +44.3% |
| 10 | VR Adviser#10 · 4,982,124 sh | 4,982,124 | $18.7M | 0.57% | -50.1% |
| 11 | BAKER BROS. ADVISORS#11 · 4,975,826 sh | 4,975,826 | $18.7M | 0.09% | 0.0% |
| 12 | GEODE CAPITAL MANAGEMENT#12 · 4,678,716 sh | 4,678,716 | $17.5M | <0.01% | +126.4% |
| 13 | Elmind Capital#13 · 4,550,000 sh | 4,550,000 | $17.1M | 4.29% | 0.0% |
| 14 | Nextech Invest, Ltd.#14 · 4,449,932 sh | 4,449,932 | $16.7M | 0.79% | 0.0% |
| 15 | TWO SIGMA INVESTMENTS#15 · 4,132,643 sh | 4,132,643 | $15.5M | 0.01% | +52.5% |
| 16 | Eversept Partners#16 · 3,558,497 sh | 3,558,497 | $13.3M | 0.69% | +11.6% |
| 17 | UBS Group AG#17 · 3,468,359 sh | 3,468,359 | $13.0M | <0.01% | +11.2% |
| 18 | Siren, L.L.C.#18 · 3,457,711 sh | 3,457,711 | $13.0M | 0.26% | 0.0% |
| 19 | ADAR1 Capital Management#19 · 3,365,118 sh | 3,365,118 | $12.6M | 0.58% | -1.3% |
| 20 | CITADEL ADVISORS#20 · 3,110,509 sh | 3,110,509 | $11.7M | <0.01% | -42.5% |
| 21 | MARSHALL WACE, LLP#21 · 3,024,351 sh | 3,024,351 | $11.3M | <0.01% | -26.9% |
| 22 | Woodline Partners#22 · 2,040,210 sh | 2,040,210 | $7.7M | 0.02% | +2.0% |
| 23 | GOLDMAN SACHS GROUP#23 · 2,003,652 sh | 2,003,652 | $7.5M | <0.01% | +37.3% |
| 24 | DIMENSIONAL FUND ADVISORS#24 · 1,860,290 sh | 1,860,290 | $7.0M | <0.01% | -3.7% |
| 25 | Qube Research & Technologies Ltd#25 · 1,824,564 sh | 1,824,564 | $6.8M | <0.01% | -18.9% |
| 26 | VANGUARD PORTFOLIO MANAGEMENT#26 · 1,751,167 sh | 1,751,167 | $6.6M | <0.01% | +120.3% |
| 27 | MILLENNIUM MANAGEMENT#27 · 1,685,830 sh | 1,685,830 | $6.3M | <0.01% | -53.9% |
| 28 | NORTHERN#28 · 1,675,183 sh | 1,675,183 | $6.3M | <0.01% | +173.7% |
| 29 | TUDOR INVESTMENT ET AL#29 · 1,380,687 sh | 1,380,687 | $5.2M | <0.01% | New |
| 30 | VANGUARD FIDUCIARY#30 · 1,267,430 sh | 1,267,430 | $4.8M | <0.01% | +14.9% |
| 31 | Seven Fleet Capital Management#31 · 1,085,398 sh | 1,085,398 | $4.1M | 0.67% | +192.2% |
| 32 | SPHERA FUNDS MANAGEMENT LTD.#32 · 879,000 sh | 879,000 | $3.3M | 0.43% | +299.5% |
| 33 | Ally Bridge Group (NY)#33 · 775,000 sh | 775,000 | $2.9M | 2.57% | -13.9% |
| 34 | DV EQUITIES#34 · 714,000 sh | 714,000 | $2.7M | 0.38% | — |
| 35 | GILDER GAGNON HOWE#35 · 704,423 sh | 704,423 | $2.6M | 0.03% | -37.1% |
| 36 | Bank of New York Mellon#36 · 684,539 sh | 684,539 | $2.6M | <0.01% | +136.2% |
| 37 | DEUTSCHE BANK AG\#37 · 663,038 sh | 663,038 | $2.5M | <0.01% | +43.1% |
| 38 | FIRST ADVISORS#38 · 599,696 sh | 599,696 | $2.2M | <0.01% | +5.5% |
| 39 | CHARLES SCHWAB INVESTMENT MANAGEMENT#39 · 549,875 sh | 549,875 | $2.1M | <0.01% | +326.9% |
| 40 | Ensign Peak Advisors#40 · 505,055 sh | 505,055 | $1.9M | <0.01% | -14.8% |
| 41 | RAYMOND JAMES FINANCIAL#41 · 484,222 sh | 484,222 | $1.8M | <0.01% | +27.4% |
| 42 | SCHULHOFF#42 · 477,550 sh | 477,550 | $1.8M | 0.72% | 0.0% |
| 43 | Exome Asset Management#43 · 460,067 sh | 460,067 | $1.7M | 1.06% | -11.8% |
| 44 | Nuveen#44 · 448,041 sh | 448,041 | $1.7M | <0.01% | New |
| 45 | DAFNA Capital Management#45 · 438,407 sh | 438,407 | $1.6M | 0.31% | +90.6% |
| 46 | Assenagon Asset Management S.A.#46 · 364,173 sh | 364,173 | $1.4M | — | 0.0% |
| 47 | Jump Financial#47 · 347,400 sh | 347,400 | $1.3M | 0.01% | +3139.5% |
| 48 | Swiss National Bank#48 · 325,400 sh | 325,400 | $1.2M | <0.01% | +1.8% |
| 49 | Caption Management#49 · 300,000 sh | 300,000 | $1.1M | <0.01% | -47.7% |
| 50 | CITIGROUP#50 · 287,866 sh | 287,866 | $1.1M | <0.01% | +182.8% |
| 51 | LMR Partners LLP#51 · 273,213 sh | 273,213 | $1.0M | <0.01% | +16.3% |
| 52 | Toroso Investments#52 · 246,697 sh | 246,697 | $925.1K | <0.01% | +0.4% |
| 53 | TEMA ETFS#53 · 228,987 sh | 228,987 | $858.7K | — | +0.7% |
| 54 | RHUMBLINE ADVISERS#54 · 222,514 sh | 222,514 | $834.4K | <0.01% | New |
| 55 | Rafferty Asset Management#55 · 221,377 sh | 221,377 | $830.2K | <0.01% | -7.7% |
| 56 | Invesco Ltd.#56 · 220,205 sh | 220,205 | $825.8K | <0.01% | +257.7% |
| 57 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#57 · 219,779 sh | 219,779 | $824.2K | <0.01% | +16.0% |
| 58 | Stonepine Capital Management#58 · 205,000 sh | 205,000 | $768.8K | 0.36% | +2.5% |
| 59 | Focus Partners Wealth#59 · 197,878 sh | 197,878 | $742.0K | <0.01% | New |
| 60 | MORGAN STANLEY#60 · 190,799 sh | 190,799 | $715.5K | 0.00% | -63.3% |
| 61 | Verdad Advisers#61 · 176,407 sh | 176,407 | $661.5K | 0.63% | +484.4% |
| 62 | LPL Financial#62 · 171,733 sh | 171,733 | $644.0K | <0.01% | +40.0% |
| 63 | HighVista Strategies#63 · 169,831 sh | 169,831 | $636.9K | 0.15% | -41.0% |
| 64 | WELLS FARGO & COMPANY#64 · 163,183 sh | 163,183 | $611.9K | <0.01% | +2374.3% |
| 65 | AWM Investment Company#65 · 150,000 sh | 150,000 | $562.5K | 0.05% | 0.0% |
| 66 | PRICE T ROWE ASSOCIATES#66 · 148,107 sh | 148,107 | $556.0K | <0.01% | New |
| 67 | CANADA PENSION PLAN INVESTMENT BOARD#67 · 141,500 sh | 141,500 | $530.6K | <0.01% | +30.1% |
| 68 | ALLIANCEBERNSTEIN L.P.#68 · 104,310 sh | 104,310 | $490.3K | <0.01% | New |
| 69 | Walleye Capital#69 · 126,526 sh | 126,526 | $474.5K | <0.01% | New |
| 70 | BARCLAYS PLC#70 · 126,415 sh | 126,415 | $474.1K | <0.01% | -11.2% |
| 71 | NLB Skladi, upravljanje premozenja, d.o.o.#71 · 125,000 sh | 125,000 | $468.8K | — | +12.5% |
| 72 | Legal & General Group Plc#72 · 123,313 sh | 123,313 | $462.4K | <0.01% | -13.1% |
| 73 | VANGUARD ASSET MANAGEMENT, Ltd#73 · 122,893 sh | 122,893 | $460.8K | <0.01% | 0.0% |
| 74 | Velan Capital Investment Management#74 · 120,000 sh | 120,000 | $450.0K | 0.27% | -77.8% |
| 75 | Squarepoint Ops#75 · 112,152 sh | 112,152 | $420.6K | <0.01% | -53.5% |
| 76 | PROFUND ADVISORS#76 · 111,378 sh | 111,378 | $417.7K | 0.01% | +6.5% |
| 77 | JPMORGAN CHASE#77 · 109,413 sh | 109,413 | $409.2K | 0.00% | +255.9% |
| 78 | Virtus Investment Advisers#78 · 108,703 sh | 108,703 | $407.6K | 0.10% | +67.0% |
| 79 | MIRAE ASSET GLOBAL ETFS Ltd.#79 · 107,334 sh | 107,334 | $402.2K | <0.01% | +543.4% |
| 80 | ALPS ADVISORS#80 · 107,100 sh | 107,100 | $401.6K | <0.01% | +1.2% |
| 81 | MetLife Investment Management#81 · 104,635 sh | 104,635 | $392.4K | <0.01% | New |
| 82 | Aspire Growth Partners#82 · 102,254 sh | 102,254 | $383.5K | 0.22% | 0.0% |
| 83 | Robertson Stephens Wealth Management#83 · 96,000 sh | 96,000 | $360.0K | — | New |
| 84 | LANDSCAPE CAPITAL MANAGEMENT, L.L.C.#84 · 94,240 sh | 94,240 | $353.4K | 0.02% | 0.0% |
| 85 | ALGERT GLOBAL#85 · 90,900 sh | 90,900 | $340.9K | <0.01% | New |
| 86 | SUSQUEHANNA INTERNATIONAL GROUP, LLP#86 · 90,673 sh | 90,673 | $340.0K | 0.00% | -95.2% |
| 87 | Miller Financial Services#87 · 85,000 sh | 85,000 | $318.8K | — | +18.1% |
| 88 | Engineers Gate Manager#88 · 83,130 sh | 83,130 | $311.7K | <0.01% | +182.0% |
| 89 | Zurcher Kantonalbank (Zurich Cantonalbank)#89 · 79,816 sh | 79,816 | $299.3K | <0.01% | +66.3% |
| 90 | Vanguard Global Advisers#90 · 71,617 sh | 71,617 | $268.6K | <0.01% | 0.0% |
| 91 | China Universal Asset Management , Ltd.#91 · 64,647 sh | 64,647 | $242.4K | 0.01% | +17.4% |
| 92 | State of Wyoming#92 · 54,987 sh | 54,987 | $206.2K | 0.02% | +4.4% |
| 93 | AMERICAN CENTURY COMPANIES#93 · 54,899 sh | 54,899 | $205.9K | <0.01% | New |
| 94 | Private Advisor Group#94 · 54,502 sh | 54,502 | $204.4K | <0.01% | +23.9% |
| 95 | Merit Financial Group#95 · 53,503 sh | 53,503 | $200.6K | <0.01% | +0.5% |
| 96 | Police & Firemen's Retirement System of New Jersey#96 · 52,499 sh | 52,499 | $196.9K | <0.01% | New |
| 97 | State of New Jersey Common Pension Fund D#97 · 52,424 sh | 52,424 | $196.6K | <0.01% | +64.6% |
| 98 | Universal- Beteiligungs- und Servicegesellschaft mbH#98 · 50,529 sh | 50,529 | $189.5K | <0.01% | +89.5% |
| 99 | Congress Park Capital#99 · 49,171 sh | 49,171 | $184.4K | — | 0.0% |
| 100 | TWINBEECH CAPITAL#100 · 48,404 sh | 48,404 | $181.5K | 0.03% | New |
Funds that sold out of CTMX in Q2 2026 (45)
Held CTMX at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| LEUCADIA NATIONAL3,067,864 sh | 3,067,864 | $14.4M |
| Patient Square Capital1,085,790 sh | 1,085,790 | $5.1M |
| JANE STREET GROUP997,510 sh | 997,510 | $4.7M |
| EVENTIDE ASSET MANAGEMENT900,000 sh | 900,000 | $4.2M |
| Trexquant Investment898,767 sh | 898,767 | $4.2M |
| BALYASNY ASSET MANAGEMENT L.P.730,844 sh | 730,844 | $3.4M |
| DV Trading714,000 sh | 714,000 | $3.4M |
| Informed Momentum565,113 sh | 565,113 | $2.7M |
| Longaeva Partners L.P.550,000 sh | 550,000 | $2.6M |
| SEVEN GRAND MANAGERS325,000 sh | 325,000 | $1.5M |
| Soleus Capital Management, L.P.300,000 sh | 300,000 | $1.4M |
| Brevan Howard Capital Management269,202 sh | 269,202 | $1.3M |
| Scientech Research230,598 sh | 230,598 | $1.1M |
| Burkehill Global Management225,000 sh | 225,000 | $1.1M |
| Centiva Capital200,000 sh | 200,000 | $940.0K |
| Y-Intercept (Hong Kong) Ltd167,514 sh | 167,514 | $787.3K |
| GROUP ONE TRADING, L.P.154,134 sh | 154,134 | $724.4K |
| PRELUDE CAPITAL MANAGEMENT121,912 sh | 121,912 | $573.0K |
| Jain Global104,750 sh | 104,750 | $492.3K |
| Virtu Financial101,895 sh | 101,895 | $479.0K |
| Cannon Global Investment Management96,100 sh | 96,100 | $451.7K |
| Hudson Bay Capital Management80,663 sh | 80,663 | $379.1K |
| JACOBS LEVY EQUITY MANAGEMENT68,378 sh | 68,378 | $321.4K |
| Schonfeld Strategic Advisors67,732 sh | 67,732 | $318.3K |
| ACADIAN ASSET MANAGEMENT63,694 sh | 63,694 | $298.0K |
| OMERS ADMINISTRATION62,400 sh | 62,400 | $293.3K |
| Diametric Capital57,475 sh | 57,475 | $270.1K |
| Catalyst Funds Management Pty Ltd51,600 sh | 51,600 | $242.5K |
| HB Wealth Management50,000 sh | 50,000 | $235.0K |
| TORONTO DOMINION BANK40,116 sh | 40,116 | $188.5K |
| GABELLI FUNDS33,000 sh | 33,000 | $155.1K |
| FOX RUN MANAGEMENT, L.L.C.33,920 sh | 33,920 | $149.6K |
| WINTON GROUP Ltd31,100 sh | 31,100 | $146.2K |
| MANGROVE PARTNERS IM26,265 sh | 26,265 | $123.4K |
| Ethos Financial Group23,697 sh | 23,697 | $100.9K |
| Mariner19,750 sh | 19,750 | $92.8K |
| GSA CAPITAL PARTNERS LLP19,140 sh | 19,140 | $90.0K |
| Sanctuary Advisors17,053 sh | 17,053 | $80.1K |
| EVOLVE PRIVATE WEALTH14,833 sh | 14,833 | $69.7K |
| GABELLI & INVESTMENT ADVISERS11,000 sh | 11,000 | $51.7K |
| Creative Planning10,505 sh | 10,505 | $49.4K |
| Lido Advisors10,425 sh | 10,425 | $49.0K |
| SIGNATUREFD529 sh | 529 | $2.5K |
| Advisory Services Network274 sh | 274 | $1.3K |
| Rachor Investment Advisory Services175 sh | 175 | $823.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.