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Disclosery

CTMX CYTOMX THERAPEUTICS INC.

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COMMON STOCK (common), issuer CIK 1501989

100 managers (103 13F filers) reported a position in CTMX shares at 2025-09-30, 137,424,075 shares in all. 32 filers opened a position and 12 filers sold out during the quarter.

Managers
100
13F filers
103
New
32
Added
29
Reduced
25
Sold out
12
Shares held by filers
137,424,075

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Venrock Adviser, LLC15,561,500$49.6M2.79%+1,591,61813F-HRTimeline
FMR LLCin group FMR LLC15,396,200$49.1M<0.01%+6,157,33213F-HRTimelineGroup
TANG CAPITAL MANAGEMENT LLCin group TANG CAPITAL MANAGEMENT LLC11,065,662$35.3M1.36%013F-HRTimelineGroup
PERCEPTIVE ADVISORS LLCin group PERCEPTIVE ADVISORS LLC9,680,185$30.9M0.89%+2,686,53913F-HRTimelineGroup
VANGUARD GROUP INCgroup of 2 filers holding8,974,746$28.6M-434,014Timeline
ORBIMED ADVISORS LLCin group ORBIMED ADVISORS LLC8,461,500$27M0.65%013F-HRTimelineGroup
Commodore Capital LPin group Commodore Capital LP7,692,300$24.5M1.2%013F-HRTimelineGroup
BAKER BROS. ADVISORS LPin group BAKER BROS. ADVISORS LP4,250,826$13.6M0.1%+766,60013F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.4,068,575$13M0.03%-4,016,04813F-HRTimelineGroup
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC4,045,414$12.9M1.28%+964,00013F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management3,913,081$12.5M0.03%+1,047,45613F-HRTimelineGroup
Kynam Capital Management, LP3,646,503$11.6M0.87%+1,492,09013F-HRTimeline
RTW INVESTMENTS, LP3,461,500$11M0.14%013F-HRTimeline
Ikarian Capital, LLCin group Ikarian Capital, LLC3,372,616$10.8M2.18%new13F-HRTimelineGroup
Vivo Capital, LLC2,884,615$9.2M0.74%-2,884,61513F-HRTimeline
RA CAPITAL MANAGEMENT, L.P.in group RA CAPITAL MANAGEMENT, L.P.2,661,331$8.49M0.1%013F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC2,545,260$8.12M0.01%+683,06013F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.2,381,912$7.6M<0.01%-6,54113F-HRTimelineGroup
Woodline Partners LP2,337,005$7.46M0.04%+10613F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC1,800,435$5.74M<0.01%+1,714,92613F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,569,298$5.01M<0.01%-175,87813F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC1,386,863$4.42M<0.01%+1,153,52413F-HRTimelineGroup
Financial Engines Advisors L.L.C.1,381,357$4.41M0.01%new13F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC1,237,057$3.95M0.1%new13F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP1,104,993$3.52M<0.01%-1,248,12913F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/1,005,228$3.21M<0.01%+1,000,45713F-HR/ATimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding769,698$2.46M+612,017Timeline
Exome Asset Management LLC745,305$2.38M1.57%new13F-HRTimeline
Assenagon Asset Management S.A.729,967$2.33M<0.01%+9,94713F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC653,725$2.08M<0.01%-903,31113F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP644,982$2.06M<0.01%+5,94213F-HRTimelineGroup
Prosight Management, LP564,800$1.8M0.43%-2,952,31313F-HRTimeline
GSA CAPITAL PARTNERS LLP535,974$1.71M0.14%-94,83513F-HRTimeline
Inspire Investing, LLCin group Inspire Investing, LLC522,482$1.67M0.16%new13F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP451,128$1.44M<0.01%+267,96213F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC447,753$1.43M<0.01%+433,07513F-HRTimelineGroup
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP401,891$1.28M<0.01%new13F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC401,367$1.28M<0.01%+389,39913F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP389,685$1.24M<0.01%-60,42213F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY319,288$1.02M<0.01%-19,91813F-HR/ATimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding315,497$1.01M-75,809Timeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC293,560$936K<0.01%+10,00013F-HRTimelineGroup
HighVista Strategies LLC257,148$820K0.2%new13F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp252,659$806K<0.01%013F-HRTimelineGroup
Precision Wealth Strategies, LLC237,081$756K0.25%new13F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC206,526$659K0.05%new13F-HRTimeline
DIADEMA PARTNERS LP185,286$591K0.41%new13F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC158,329$505K<0.01%new13F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA152,304$486K<0.01%-91,24313F-HRTimelineGroup
Quadrature Capital Ltdin group Quadrature Capital Ltd125,035$399K<0.01%new13F-HRTimelineGroup
Stonepine Capital Management, LLC125,000$399K0.32%new13F-HRTimeline
Qube Research & Technologies Ltd122,500$391K<0.01%new13F-HRTimeline
Formidable Asset Management, LLC118,337$377K0.06%-194,51313F-HRTimeline
Tidal Investments LLCin group Tidal Investments LLC118,337$377K<0.01%-194,51313F-HRTimelineGroup
Congress Park Capital LLC103,922$332K0.1%+8,50013F-HRTimeline
Aspire Growth Partners LLC102,254$326K0.24%013F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co88,570$283K<0.01%013F-HRTimelineGroup
LPL Financial LLC86,653$276K<0.01%-114,57113F-HRTimeline
Velan Capital Investment Management LP80,000$255K0.24%+5,00013F-HRTimeline
Miller Financial Services LLC67,000$214K0.25%+16,00013F-HRTimeline
Merit Financial Group, LLC53,243$170K<0.01%new13F-HR/ATimeline
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.52,914$169K<0.01%new13F-HRTimelineGroup
JACOBS LEVY EQUITY MANAGEMENT, INC50,773$162K<0.01%new13F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC47,728$152K<0.01%-1,66413F-HRTimelineGroup
Private Advisor Group, LLC44,002$140K<0.01%013F-HRTimeline
Persistent Asset Partners Ltd42,645$136K0.1%new13F-HR/ATimeline
Sanctuary Advisors, LLC34,634$110K<0.01%new13F-HR/ATimeline
Jain Global LLC33,652$107K<0.01%new13F-HRTimeline
UBS Group AGin group UBS Group AG30,168$96.2K<0.01%-377,86713F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd29,286$93.4K<0.01%-92,61313F-HRTimelineGroup
Ethos Financial Group, LLC23,697$75.6K0.01%new13F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC23,300$74.3K<0.01%-2,40013F-HRTimelineGroup
BlueChip Wealth Advisors LLC23,000$73.4K0.03%new13F-HRTimeline
Invesco Ltd.in group Invesco Ltd.22,426$71.5K<0.01%+8,25513F-HRTimelineGroup
Forefront Analytics, LLC18,109$57.8K0.06%-9,58913F-HRTimeline
Forefront Wealth Partners, LLC18,109$57.8K0.01%new13F-HRTimeline
Truvestments Capital LLC17,101$54.6K0.01%+2,23313F-HRTimeline
WestHill Financial Advisors, Inc.17,082$54.5K0.01%013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.16,710$52.8K<0.01%+50013F-HRTimelineGroup
BIT Capital GmbH16,285$51.9K<0.01%new13F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO16,152$51.5K<0.01%+15,87113F-HR/ATimelineGroup
PURSUE WEALTH PARTNERS LLC14,492$46.2K0.03%013F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC14,121$45K<0.01%+1,68613F-HRTimeline
Nierenberg Investment Management Compan…12,555$40K0.02%013F-HRTimeline
IPG Investment Advisors LLC12,500$39.9K0.01%013F-HRTimeline
Bay Colony Advisory Group, Inc d/b/a Ba…10,747$34.3K<0.01%new13F-HRTimeline
Mariner, LLCin group Mariner, LLC10,250$32.7K<0.01%new13F-HRTimelineGroup
Peregrine Asset Advisers, Inc.10,000$31.9K0.01%013F-HRTimeline
Meridian Wealth Management, LLC10,000$31.9K<0.01%013F-HRTimeline
Farther Finance Advisors, LLC7,970$25.4K<0.01%new13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC7,756$24.7K<0.01%new13F-HRTimelineGroup
Private Wealth Asset Management, LLC4,000$12.8K<0.01%013F-HRTimeline
TRUIST FINANCIAL CORPin group TRUIST FINANCIAL CORP12,500$12.6K<0.01%new13F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN3,605$11.5K<0.01%new13F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC1,490$4.75K<0.01%+1,48813F-HR/ATimelineGroup
Caitong International Asset Management …689$2.2K<0.01%-96713F-HRTimeline
Advisory Services Network, LLC274$874<0.01%new13F-HRTimeline
SBI Securities Co., Ltd.85$271<0.01%+113F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS17$54<0.01%013F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…3$10<0.01%-29,65813F-HRTimelineGroup