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Public ownership evidence

CytomX Therapeutics, Inc. (CTMX) Ownership Disclosures

Read CTMX insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-11-07T14:03:26.246Z

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2026-10-162025-11-06McCarthy Sean A.S101,793Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2025-11-06 and its public availability date is 2026-10-16. Subtracting those calendar dates gives 344 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0001610717-26-000442 ↗13F 0001081019-26-000020 ↗13F 0001081019-26-000019 ↗

Recent Form 4 activity

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2026-10-162025-11-06McCarthy Sean A.S101,793Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

Inspect all 50 displayed rows: Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25208,477$781,789None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25781,789$208,477,000None
Assenagon Asset Management S.A.2026-06-302026-08-22364,173$1,365,649None
Ensign Peak Advisors, Inc2026-03-312026-08-19592,473$2,784,623None
Stonepine Capital Management, LLC2026-06-302026-08-18205,000$768,750None
Seven Fleet Capital Management LP2026-06-302026-08-18714,000$2,677,500None
Seven Fleet Capital Management LP2026-06-302026-08-18371,398$1,392,743None
SEI INVESTMENTS CO2026-06-302026-08-1540,499$151,871None
Rafferty Asset Management, LLC2026-06-302026-08-15221,377$830,164None
Susquehanna Portfolio Strategies, LLC2026-06-302026-08-1548,012$180,045None
Quarry LP2026-06-302026-08-15207$776None
ADAR1 Capital Management, LLC2026-06-302026-08-153,365,118$12,619,193None
Kynam Capital Management, LP2026-06-302026-08-1521,703,093$81,386,599None
Velan Capital Investment Management LP2026-06-302026-08-15120,000$450,000None
DV EQUITIES, LLC2026-06-302026-08-15714,000$2,677,500None
XTX Topco Ltd2026-06-302026-08-1546,981$176,179None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15549,875$2,062,031None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15549,875$2,062,031None
Qube Research & Technologies Ltd2026-06-302026-08-151,824,564$6,842,115None
Shay Capital LLC2026-06-302026-08-1545,000$168,750None
Caption Management, LLC2026-06-302026-08-15420,000$1,575,000Put
Caption Management, LLC2026-06-302026-08-15700,000$2,625,000Call
Caption Management, LLC2026-06-302026-08-15300,000$1,125,000None
Eversept Partners, LP2026-06-302026-08-153,558,497$13,344,364None
OSAIC HOLDINGS, INC.2026-06-302026-08-1512,456$46,710None
OSAIC HOLDINGS, INC.2026-06-302026-08-158,075$30,281None
Squarepoint Ops LLC2026-06-302026-08-15112,152$420,570None
MetLife Investment Management, LLC2026-06-302026-08-15104,635$392,381None
Engineers Gate Manager LP2026-06-302026-08-1583,130$311,738None
Venrock Adviser, LLC2026-06-302026-08-154,982,124$18,682,965None
JANE STREET GROUP, LLC2026-06-302026-08-1510,100$37,875Call
Nextech Invest Ltd.2026-06-302026-08-154,449,932$16,687,245None
LMR Partners LLP2026-06-302026-08-15273,213$1,024,549None
BOOTHBAY FUND MANAGEMENT, LLC2026-06-302026-08-1515,000$56,250None
AWM Investment Company, Inc.2026-06-302026-08-15150,000$562,500None
SPHERA FUNDS MANAGEMENT LTD.2026-06-302026-08-15879,000$3,296,250None
Legal & General Group Plc2026-06-302026-08-1569,852$261,945None
Legal & General Group Plc2026-06-302026-08-1536,189$135,709None
Legal & General Group Plc2026-06-302026-08-1517,272$64,770None
DRW Securities, LLC2026-06-302026-08-1534,569$129,633None
Ensign Peak Advisors, Inc2026-06-302026-08-15505,055$1,893,956None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-15372,000$1,395,000Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1581,900$307,125Put
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1590,673$340,024None
Stonepine Capital Management, LLC2026-06-302026-08-15205,000$768,750None
Exome Asset Management LLC2026-06-302026-08-15460,067$1,725,251None
Verdad Advisers, LP2026-06-302026-08-15176,407$661,526None
683 Capital Management, LLC2026-06-302026-08-1520,000$75,000None
DAFNA Capital Management LLC2026-06-302026-08-15438,407$1,644,026None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-151,685,830$6,321,862None

90-day public filing window, up to 50 source positions.

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗Assenagon Asset Management S.A. ↗Ensign Peak Advisors, Inc ↗Stonepine Capital Management, LLC ↗Seven Fleet Capital Management LP ↗Seven Fleet Capital Management LP ↗SEI INVESTMENTS CO ↗Rafferty Asset Management, LLC ↗Susquehanna Portfolio Strategies, LLC ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.