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

9.9%

Beneficial ownership of this reported class.

Shares

12,717,487 shares

Shares beneficially owned as disclosed.

Event date

20 Apr 2026

Date tied to the ownership event or amendment.

Accepted by SEC

24 Apr 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
ADCT
Shares outstanding
128,459,465 shares
Source evidence Original filing metadata and source links for verification. 5 source fields
SEC form
SCHEDULE 13G/A
Accepted by SEC
24 Apr 2026, 21:31:40 UTC
Event date
20 Apr 2026
Prior SEC filing
06 Apr 2026
Source filing
View source filing

Key filing fact

Redmile Group, LLC disclosed 9.9% ownership in ADC Therapeutics SA Common Shares, par value CHF 0.08 per share (ADCT) on 20 Apr 2026.

Key facts

  • Redmile Group, LLC filed SCHEDULE 13G/A for ADC Therapeutics SA Common Shares, par value CHF 0.08 per share (ADCT).
  • Disclosed ownership: 9.9%.
  • Date of event: 20 Apr 2026.

Change

  • Previous schedule filing date: 06 Apr 2026.
  • Current filing was accepted on 24 Apr 2026, 21:31.

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
Redmile Group, LLC 9.9% 12,717,487 0 12,717,487 /s/ Jeremy C. Green Managing Member
Jeremy C. Green 9.9% 12,717,487 0 12,717,487 /s/ Jeremy C. Green Jeremy C. Green
RedCo II Offshore SPV LLC 6.1% 7,780,431 0 7,780,431 /s/ Jeremy C. Green Managing Member of Redmile Group, LLC, its manager
RedCo II Master Fund, L.P. 0% 0 0 0 /s/ Jeremy C. Green Managing Member of RedCo II (GP), LLC, General Partner of RedCo II Master Fund, L.P.
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