BIOTECHNOLOGY VALUE FUND L P - 30 Sep 2025 SCHEDULE 13G/A Report for Zymeworks Inc. Common Stock, $0.00001 par value per share (ZYME)

Filing Manager
BIOTECHNOLOGY VALUE FUND L P
Reporting Manager
BVF PARTNERS L P/IL
Security
Zymeworks Inc. Common Stock, $0.00001 par value per share
Symbol
ZYME
Shares outstanding
75,743,096 shares
Disclosed Ownership
3,938,641 shares
Ownership
5.2%
Form type
SCHEDULE 13G/A
Filing time
14 Nov 2025, 16:26:28 UTC
Date of event
30 Sep 2025
SEC
View on sec.gov

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Quoteable Key Fact

"BIOTECHNOLOGY VALUE FUND L P disclosed 5.2% ownership in Zymeworks Inc. Common Stock, $0.00001 par value per share (ZYME) on 30 Sep 2025."

Quick Takeaways

  • BIOTECHNOLOGY VALUE FUND L P filed SCHEDULE 13G/A for Zymeworks Inc. Common Stock, $0.00001 par value per share (ZYME).
  • Disclosed ownership: 5.2%.
  • Date of event: 30 Sep 2025.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 14 Nov 2025, 16:26.

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 (10)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
BIOTECHNOLOGY VALUE FUND L P 2.7% 2,045,162 0 2,045,162 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF I GP LLC 2.7% 2,045,162 0 2,045,162 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BIOTECHNOLOGY VALUE FUND II LP 2.1% 1,601,489 0 1,601,489 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF II GP LLC 2.1% 1,601,489 0 1,601,489 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
Biotechnology Value Trading Fund OS LP 0.3% 212,898 0 212,898 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF Partners OS Ltd. 0.3% 212,898 0 212,898 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF GP HOLDINGS LLC 4.9% 3,646,651 0 3,646,651 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF PARTNERS L P/IL 5.2% 3,938,641 0 3,938,641 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF INC/IL 5.2% 3,938,641 0 3,938,641 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
LAMPERT MARK N 5.2% 3,938,641 0 3,938,641 /s/ Mark N. Lampert Mark N. Lampert

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