Filing Manager
BB BIOTECH AG
Reporting Manager
BB Biotech AG
Symbol
BDTX
Shares outstanding
56,948,896 shares
Disclosed Ownership
2,733,547 shares
Ownership
4.8%
Form type
SCHEDULE 13G/A
Filing time
21 Mar 2025, 13:01:32 UTC
Date of event
19 Mar 2025
Previous filing
14 Feb 2025

Quoteable Key Fact

"BB BIOTECH AG disclosed 4.8% ownership in Black Diamond Therapeutics, Inc. Common Stock (BDTX) on 19 Mar 2025."

Quick Takeaways

  • BB BIOTECH AG filed SCHEDULE 13G/A for Black Diamond Therapeutics, Inc. Common Stock (BDTX).
  • Disclosed ownership: 4.8%.
  • Date of event: 19 Mar 2025.

What Changed

  • Previous schedule filing date: 14 Feb 2025.
  • Current filing was accepted on 21 Mar 2025, 13:01.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Source Evidence

Backed by Schedule 13D/13G

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

See Original Filing

Reporting Managers (2)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
BB Biotech AG 4.8% 2,733,547 0 2,733,547 /s/ Martin Gubler Martin Gubler/Signatory Authority
Biotech Growth N.V. 4.8% 2,733,547 0 2,733,547 /s/ Jan Bootsma Jan Bootsma/Signatory Authority