🕵️ Monopar Therapeutics ($MNPR)
SEC insider & ownership activity, last 12 months · CIK 1645469 · every row links its SEC filing
Over the last 12 months insiders sold $35.3M against $105K of open-market buying. Tactic Pharma LLC sold $35.0M in discretionary trades (Sep). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
1 buyer, $105K (1 lots) · 2 sellers, $35.3M (3 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Tactic Pharma LLC | 0 | – | 1 | $35.0M | Sep 24, 2025 |
| Arthur Klausner | 0 | – | 2 | $344K | Dec 18, 2025 |
| Vu Quan Anh | 1 | $105K | 0 | – | Dec 26, 2025 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Janus Henderson Group PLC | 19.5% | 13G | Nov 14, 2025 | filing ↗ | |
| Janus Henderson Biotech Innovation Master Fund Ltd | 16.7% | 13G | Nov 14, 2025 | filing ↗ | |
| RA Capital Management, L.P. | 9.9% | 13G | Feb 17, 2026 | filing ↗ | |
| Peter Kolchinsky | 9.9% | 13G | Feb 17, 2026 | filing ↗ | |
| Rajeev Shah | 9.9% | 13G | Feb 17, 2026 | filing ↗ | |
| RA Capital Healthcare Fund, L.P. | 9.9% | 13G | Feb 17, 2026 | filing ↗ | |
| Astrazeneca PLC | 7.8% | 13G | Feb 6, 2026 | filing ↗ | |
| Alexion Pharmaceuticals, Inc. | 7.8% | 13G | Feb 6, 2026 | filing ↗ | |
| Adage Capital Management, L.P. | 6.2% | 13G | May 13, 2026 | filing ↗ | |
| Robert Atchinson | 6.2% | 13G | May 13, 2026 | filing ↗ | |
| Phillip Gross | 6.2% | 13G | May 13, 2026 | filing ↗ | |
| Saturn V Capital Management LP | 5.2% | 13G | May 15, 2026 | filing ↗ | |
| Xiaoying Tian | 5.2% | 13G | May 15, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Arthur Klausner | $477K | Jul 8, 2026 | filing ↗ |
| Arthur Klausner | $344K | Dec 18, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Reg FD disclosure (7.01) | Jul 22, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 22, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jun 30, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 30, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jun 26, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 26, 2026 | filing ↗ |
| Shareholder vote (5.07) | Jun 22, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 29, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 19, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 19, 2026 | filing ↗ |
| Earnings (2.02) | May 14, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 14, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 19, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 19, 2026 | filing ↗ |
| Earnings (2.02) | Mar 27, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 27, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 2, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 2, 2026 | filing ↗ |
| Earnings (2.02) | Nov 13, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 13, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Nov 9, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 9, 2025 | filing ↗ |
| Material agreement (1.01) | Sep 23, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Sep 23, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 23, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Sep 15, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 15, 2025 | filing ↗ |
| Earnings (2.02) | Aug 12, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 12, 2025 | filing ↗ |