SCHEDULE 13D/A

Monopar Therapeutics Inc

Common Stock, $0.001 par value · CUSIP: 61023L207

Event date: 2026-01-28

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

• Tactic Pharma LLCReported CIK 0001727357

  Shares: 0.00 · Class: 0.0%

• Robinson ChandlerReported CIK 0001727334

  Shares: 307,370.00 · Class: 4.5%

• Brown Michael JReported CIK 0001035909

  Shares: 124,629.00 · Class: 1.8%

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