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CTMX

CytomX Therapeutics, Inc.

Company with tickers: CTMX

CIK
1501989
CUSIP
23284F105
Shares Outstanding
217,702,919
Price History Institutional Holders Short Volume Short Interest Fails to Deliver Financials SEC Filings Earnings Calls Insider Trades Congressional Trades
Holders: 174
Total Value: $874,440,233
Total Shares: 186,051,131
Showing 1–100 of 184 holdings by value · page 1 of 2

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 174 13F filers · Δ vs Dec 31, 2025
Top Holder
17.2%
−1.1 pts
Top 5
41.5%
−7.7 pts
Top 10
57.5%
−9.0 pts
HHI
556
Broadly held −145

Quarterly Activity

vs Dec 31, 2025
New
171
Increased
1
Decreased
2
Sold Out
120
Unchanged
0
Holder count: +51
Institutional value: +51.9%
Shares held: +37.6%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds
Small Seven Fleet Capital Management LP +322,500 371,398

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds
Mega GOLDMAN SACHS GROUP INC −1,001,105 1,459,839
Small Caitong International Asset Management Co., Ltd −3,041 1,649

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD)
Mega FMR LLC 31,955,637 $150,191,493
Mid Kynam Capital Management, LP 15,013,093 $70,561,537
Mega BANK OF AMERICA CORP /DE/ 10,202,785 $47,953,089
Mid PERCEPTIVE ADVISORS LLC 10,098,824 $47,464,472
Mid Venrock Adviser, LLC 9,982,124 $46,915,982

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD)
Mega FMR LLC 24,688,109 $105,171,343
Mid VR Adviser, LLC 15,561,500 $66,291,990
Mid PERCEPTIVE ADVISORS LLC 9,680,185 $41,237,588
Mid Kynam Capital Management, LP 8,966,077 $38,195,488
Mid COMMODORE CAPITAL LP 7,692,300 $32,769,198
100 of 100 shown
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Action
Mega FMR LLC $150,191,493 17.18% 31,955,637 View
Mid Kynam Capital Management, LP $70,561,537 8.07% 15,013,093 View
Mega BANK OF AMERICA CORP /DE/ $47,953,089 5.48% 10,202,785 View
Mid PERCEPTIVE ADVISORS LLC $47,464,472 5.43% 10,098,824 View
Mid Venrock Adviser, LLC $46,915,982 5.37% 9,982,124 View
Large Point72 Asset Management, L.P. $37,014,333 4.23% 7,875,390 View
Mega STATE STREET CORP $26,618,017 3.04% 5,663,408 View
Mega CITADEL ADVISORS LLC $25,409,106 2.91% 5,406,193 View
Mega BlackRock, Inc. $24,572,911 2.81% 5,228,280 View
Large BAKER BROS. ADVISORS LP $23,386,382 2.67% 4,975,826 View
Small Elmind Capital, LP $21,385,000 2.45% 4,550,000 View
Mid Nextech Invest, Ltd. $20,914,680 2.39% 4,449,932 View
Large MARSHALL WACE, LLP $19,449,426 2.22% 4,138,176 View
Mega MILLENNIUM MANAGEMENT LLC $17,202,893 1.97% 3,660,190 View
Mega WELLINGTON MANAGEMENT GROUP LLP $16,840,027 1.93% 3,582,985 View
Mid Siren, L.L.C. $16,251,241 1.86% 3,457,711 View
Mid ADAR1 Capital Management, LLC $16,027,893 1.83% 3,410,190 View
Mid Eversept Partners, LP $14,986,015 1.71% 3,188,514 View
Mega UBS Group AG $14,664,728 1.68% 3,120,155 View
Large Jefferies Financial Group Inc. $14,418,960 1.65% 3,067,864 View
Mega TWO SIGMA INVESTMENTS, LP $12,737,733 1.46% 2,710,156 View
Large Qube Research & Technologies Ltd $10,573,040 1.21% 2,249,583 View
Mega GEODE CAPITAL MANAGEMENT, LLC $9,713,076 1.11% 2,066,612 View
Large Woodline Partners LP $9,403,877 1.08% 2,000,825 View
Mega DIMENSIONAL FUND ADVISORS LP $9,075,322 1.04% 1,930,920 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $8,787,190 1.00% 1,869,615 View
Mega GOLDMAN SACHS GROUP INC $6,861,242 0.78% 1,459,839 View
Mid GILDER GAGNON HOWE & CO LLC $5,265,452 0.60% 1,120,309 View
Small Patient Square Capital LP $5,103,213 0.58% 1,085,790 View
Mega JANE STREET GROUP, LLC $4,688,296 0.54% 997,510 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $4,266,660 0.49% 907,800 View
Mid EVENTIDE ASSET MANAGEMENT, LLC $4,230,000 0.48% 900,000 View
Small Ally Bridge Group (NY) LLC $4,230,000 0.48% 900,000 View
Large Caption Management, LLC $4,230,000 0.48% 900,000 View
Large Trexquant Investment LP $4,224,204 0.48% 898,767 View
Large Balyasny Asset Management L.P. $3,434,966 0.39% 730,844 View
Mid DV Trading LLC $3,355,800 0.38% 714,000 View
Mega BARCLAYS PLC $3,290,000 0.38% 700,000 View
Mega BNP PARIBAS ARBITRAGE, SA $2,849,492 0.33% 606,275 View
Large Ensign Peak Advisors, Inc $2,784,623 0.32% 592,473 View
Large Caption Management, LLC $2,694,152 0.31% 573,224 View
Mega FIRST TRUST ADVISORS LP $2,672,241 0.31% 568,562 View
Small Informed Momentum Co LLC $2,656,031 0.30% 565,113 View
Mid Longaeva Partners L.P. $2,585,000 0.30% 550,000 View
Mid NORTHERN TRUST CORP $2,566,782 0.29% 546,124 View
Small Velan Capital Investment Management LP $2,538,000 0.29% 540,000 View
Small Exome Asset Management LLC $2,450,899 0.28% 521,468 View
Small SCHULHOFF & CO INC $2,244,485 0.26% 477,550 View
Mega DEUTSCHE BANK AG\ $2,178,078 0.25% 463,421 View
Mid 683 Capital Management, LLC $1,997,500 0.23% 425,000 View
Large Caption Management, LLC $1,974,000 0.23% 420,000 View
Mega RAYMOND JAMES FINANCIAL INC $1,786,752 0.20% 380,160 View
Small Seven Fleet Capital Management LP $1,745,570 0.20% 371,398 View
Large Assenagon Asset Management S.A. $1,711,613 0.20% 364,173 View
Mega CITADEL ADVISORS LLC $1,675,080 0.19% 356,400 View
Mid SEVEN GRAND MANAGERS, LLC $1,527,500 0.17% 325,000 View
Mega Swiss National Bank $1,502,120 0.17% 319,600 View
Small DIADEMA PARTNERS LP $1,485,200 0.17% 316,000 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,421,750 0.16% 302,500 View
Mid Soleus Capital Management, L.P. $1,410,000 0.16% 300,000 View
Mega Bank of New York Mellon Corp $1,362,378 0.16% 289,868 View
Small HighVista Strategies LLC $1,353,867 0.15% 288,057 View
Mid Brevan Howard Capital Management LP $1,265,249 0.14% 269,202 View
Mid SIMPLEX TRADING, LLC $1,167,658 0.13% 248,438 View
Large SEI INVESTMENTS CO $1,166,765 0.13% 248,248 View
Large Tidal Investments LLC $1,155,109 0.13% 245,768 View
Large Squarepoint Ops LLC $1,133,710 0.13% 241,215 View
Large Rafferty Asset Management, LLC $1,127,172 0.13% 239,824 View
Large LMR Partners LLP $1,104,175 0.13% 234,931 View
Small Scientech Research LLC $1,083,810 0.12% 230,598 View
Small DAFNA Capital Management LLC $1,081,000 0.12% 230,000 View
Mid Tema ETFs LLC $1,069,273 0.12% 227,505 View
Mid Burkehill Global Management, LP $1,057,500 0.12% 225,000 View
Small SPHERA FUNDS MANAGEMENT LTD. $1,034,000 0.12% 220,000 View
Small Stonepine Capital Management, LLC $940,000 0.11% 200,000 View
Large Centiva Capital, LP $940,000 0.11% 200,000 View
Small Stonepine Capital Management, LLC $940,000 0.11% 200,000 View
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $890,180 0.10% 189,400 View
Mid Y-Intercept (Hong Kong) Ltd $787,315 0.09% 167,514 View
Mid GROUP ONE TRADING LLC $724,429 0.08% 154,134 View
Small AWM Investment Company, Inc. $705,000 0.08% 150,000 View
Mega BARCLAYS PLC $669,335 0.08% 142,412 View
Mega Legal & General Group Plc $666,896 0.08% 141,893 View
Mega CITADEL ADVISORS LLC $642,020 0.07% 136,600 View
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $605,341 0.07% 128,796 View
Mega LPL Financial LLC $576,379 0.07% 122,634 View
Mid PRELUDE CAPITAL MANAGEMENT, LLC $572,986 0.07% 121,912 View
Mid NLB Skladi, upravljanje premozenja, d.o.o. $522,221 0.06% 111,111 View
Mega CANADA PENSION PLAN INVESTMENT BOARD $511,360 0.06% 108,800 View
Large ALPS ADVISORS INC $497,354 0.06% 105,820 View
Large Jain Global LLC $492,325 0.06% 104,750 View
Mid PROFUND ADVISORS LLC $491,314 0.06% 104,535 View
Micro Aspire Growth Partners LLC $480,593 0.05% 102,254 View
Mid Virtu Financial LLC $478,906 0.05% 101,895 View
Mega CITIGROUP INC $478,464 0.05% 101,801 View
Micro Cannon Global Investment Management, LLC $451,670 0.05% 96,100 View
Mid LANDSCAPE CAPITAL MANAGEMENT, L.L.C. $442,926 0.05% 94,240 View
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM $415,381 0.05% 88,379 View
Large Hudson Bay Capital Management LP $379,116 0.04% 80,663 View
Mid XTX Topco Ltd $365,946 0.04% 77,861 View
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