BIOTECHNOLOGY VALUE FUND L P - 31 Dec 2025 SCHEDULE 13G/A Report for SAB Biotherapeutics, Inc. Common Stock, $0.0001 par value per share (SABS)

Filing Manager
BIOTECHNOLOGY VALUE FUND L P
Reporting Manager
BVF PARTNERS L P/IL
Security
SAB Biotherapeutics, Inc. Common Stock, $0.0001 par value per share
Symbol
SABS
Shares outstanding
52,328,637 shares
Disclosed Ownership
4,761,906 shares
Ownership
9.1%
Form type
SCHEDULE 13G/A
Filing time
17 Feb 2026, 16:23:38 UTC
Date of event
31 Dec 2025
Previous filing
14 Nov 2025
SEC
View on sec.gov

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Quoteable Key Fact

"BIOTECHNOLOGY VALUE FUND L P disclosed 9.1% ownership in SAB Biotherapeutics, Inc. Common Stock, $0.0001 par value per share (SABS) on 31 Dec 2025."

Quick Takeaways

  • BIOTECHNOLOGY VALUE FUND L P filed SCHEDULE 13G/A for SAB Biotherapeutics, Inc. Common Stock, $0.0001 par value per share (SABS).
  • Disclosed ownership: 9.1%.
  • Date of event: 31 Dec 2025.

What Changed

  • Previous schedule filing date: 14 Nov 2025.
  • Current filing was accepted on 17 Feb 2026, 16:23.

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 5.1% 2,540,159 0 2,540,159 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF I GP LLC 5.1% 2,540,159 0 2,540,159 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BIOTECHNOLOGY VALUE FUND II LP 3.9% 1,931,905 0 1,931,905 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF II GP LLC 3.9% 1,931,905 0 1,931,905 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
Biotechnology Value Trading Fund OS LP 0.5% 225,556 0 225,556 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF Partners OS Ltd. 0.5% 225,556 0 225,556 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF GP HOLDINGS LLC 8.6% 4,472,064 0 4,472,064 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF PARTNERS L P/IL 9.1% 4,761,906 0 4,761,906 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF INC/IL 9.1% 4,761,906 0 4,761,906 /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
LAMPERT MARK N 9.1% 4,761,906 0 4,761,906 /s/ Mark N. Lampert Mark N. Lampert

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