Ownership signal CIK-linked ownership evidence from parsed SEC filings. 2 signals
Large-stake signal

Form

SCHEDULE 13G/A

Passive or exempt beneficial ownership filing.

Ownership

0.5%

Beneficial ownership of this reported class.

Shares

1,085,398 shares

Shares beneficially owned as disclosed.

Event date

31 Mar 2026

Date tied to the ownership event or amendment.

Accepted by SEC

15 May 2026

EDGAR acceptance date.

How to read this large-stake filing
  • Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
  • Compare this filing with the holder history and issuer page before treating the percentage as a current position.
  • Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
Subject security Names, identifiers, and filing context for this profile. 2 source fields
Symbol
CTMX
Shares outstanding
217,079,600 shares
Source evidence Original filing metadata and source links for verification. 5 source fields
SEC form
SCHEDULE 13G/A
Accepted by SEC
15 May 2026, 17:09:03 UTC
Event date
31 Mar 2026
Prior SEC filing
14 Nov 2025
Source filing
View source filing

Key filing fact

Seven Fleet Capital Management LP disclosed 0.5% ownership in CytomX Therapeutics, Inc. Common Stock, $0.00001 par value per share ("Common Stock") (CTMX) on 31 Mar 2026.

Key facts

  • Seven Fleet Capital Management LP filed SCHEDULE 13G/A for CytomX Therapeutics, Inc. Common Stock, $0.00001 par value per share ("Common Stock") (CTMX).
  • Disclosed ownership: 0.5%.
  • Date of event: 31 Mar 2026.

Change

  • Previous schedule filing date: 14 Nov 2025.
  • Current filing was accepted on 15 May 2026, 17:09.

Research use

  • This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
  • Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.

Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

View source filing

Reporting persons

Disclosed reporting parties (4)

Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.

Name Ownership Shares owned Sole voting power Shared voting power Signature Title CIK
Seven Fleet Master Fund LP 0.5% 1,085,398 0 1,085,398 /s/ Dr. Brian Liu Dr. Brian Liu, Managing Member of Seven Fleet Capital Management LP, its Investment Mgr and Seven Fleet Capital Management GP, LLC, its Gen'l Ptr
Seven Fleet Capital Management LP 0.5% 1,085,398 0 1,085,398 /s/ Dr. Brian Liu Dr. Brian Liu , Managing Member of Seven Fleet Capital Management GP, LLC, its General Partner
Seven Fleet Capital Management GP LLC 0.5% 1,085,398 0 1,085,398 /s/ Dr. Brian Liu Dr. Brian Liu, Managing Member
Brian Liu 0.5% 1,085,398 0 1,085,398 /s/ Dr. Brian Liu Dr. Brian Liu
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