SCHEDULE 13G/A

Lexeo Therapeutics Inc

Common Stock ($0.0001 par value) (the "Shares") · CUSIP: 52886X107

Event date: 2025-06-30

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• Citadel Advisors LLC

  Shares: 5,325,269.00 · Class: 9.6%

• Citadel Advisors Holdings LP

  Shares: 5,325,269.00 · Class: 9.6%

• Citadel GP LLC

  Shares: 5,325,269.00 · Class: 9.6%

• Citadel Securities LLC

  Shares: 8,843.00 · Class: 0.0%

• Citadel Securities Group LP

  Shares: 8,843.00 · Class: 0.0%

• Citadel Securities GP LLC

  Shares: 8,843.00 · Class: 0.0%

• Kenneth Griffin

  Shares: 5,334,112.00 · Class: 9.6%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.