PFIZER INC - 31 Dec 2024 SCHEDULE 13G/A Report for Q32 Bio Inc. Common Stock par value $0.0001 per share (QTTB)

Filing Manager
PFIZER INC
Reporting Manager
Pfizer Inc. (IRS Identification No.: 13-5315170)
Security
Q32 Bio Inc. Common Stock par value $0.0001 per share
Symbol
QTTB
Shares outstanding
12,077,261 shares
Disclosed Ownership
277,777 shares
Ownership
2.3%
Form type
SCHEDULE 13G/A
Filing time
13 Feb 2026, 17:08:27 UTC
Date of event
31 Dec 2024
SEC
View on sec.gov

Quoteable Key Fact

"PFIZER INC disclosed 2.3% ownership in Q32 Bio Inc. Common Stock par value $0.0001 per share (QTTB) on 31 Dec 2024."

Quick Takeaways

  • PFIZER INC filed SCHEDULE 13G/A for Q32 Bio Inc. Common Stock par value $0.0001 per share (QTTB).
  • Disclosed ownership: 2.3%.
  • Date of event: 31 Dec 2024.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 13 Feb 2026, 17:08.

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 (1)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Pfizer Inc. (IRS Identification No.: 13-5315170) 2.3% 277,777 277,777 0 /s/ Madelyn D. Purcell Madelyn D. Purcell/Assistant Secretary
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