SCHEDULE 13G/A

POET TECHNOLOGIES INC

Common Shares, no par value · CUSIP: 73044W302

Event date: 2026-09-30

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

• JANE STREET GROUP, LLC

  Shares: 13,305,229.00 · Class: 7.7%

• Jane Street Capital, LLC

  Shares: 9,611,703.00 · Class: 5.6%

• Jane Street Global Trading, LLC

  Shares: 3,693,526.00 · Class: 2.1%

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