BIOTECHNOLOGY VALUE FUND L P - 11 Aug 2025 SCHEDULE 13G/A Report for Verastem, Inc. Common Stock, $0.0001 par value per share (VSTM)

Filing Manager
BIOTECHNOLOGY VALUE FUND L P
Reporting Manager
BVF PARTNERS L P/IL
Security
Verastem, Inc. Common Stock, $0.0001 par value per share
Symbol
VSTM
Shares outstanding
64,102,564 shares
Disclosed Ownership
2,500,000 shares
Ownership
3.9%
Form type
SCHEDULE 13G/A
Filing time
13 Aug 2025, 17:03:56 UTC
Date of event
11 Aug 2025
Previous filing
13 Aug 2025
SEC
View on sec.gov

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Quoteable Key Fact

"BIOTECHNOLOGY VALUE FUND L P disclosed 3.9% ownership in Verastem, Inc. Common Stock, $0.0001 par value per share (VSTM) on 11 Aug 2025."

Quick Takeaways

  • BIOTECHNOLOGY VALUE FUND L P filed SCHEDULE 13G/A for Verastem, Inc. Common Stock, $0.0001 par value per share (VSTM).
  • Disclosed ownership: 3.9%.
  • Date of event: 11 Aug 2025.

What Changed

  • Previous schedule filing date: 13 Aug 2025.
  • Current filing was accepted on 13 Aug 2025, 17:03.

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.

Official SEC Source

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 2.2% 1,396,290 0 1,396,290 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF I GP LLC 2.2% 1,396,290 0 1,396,290 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BIOTECHNOLOGY VALUE FUND II LP 1.5% 933,240 0 933,240 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF II GP LLC 1.5% 933,240 0 933,240 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
Biotechnology Value Trading Fund OS LP 0.2% 100,150 0 100,150 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF Partners OS Ltd. 0.2% 100,150 0 100,150 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF GP HOLDINGS LLC 3.6% 2,329,530 0 2,329,530 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF PARTNERS L P/IL 3.9% 2,500,000 0 2,500,000 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF INC/IL 3.9% 2,500,000 0 2,500,000 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
LAMPERT MARK N 3.9% 2,500,000 0 2,500,000 /s/ Mark N. Lampert Mark N. Lampert

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