MNPR · Insider Trading
Monopar Therapeutics Inc. Common Stock
Every open-market purchase and sale reported by MNPR officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-20 | Chandler Robinson | Chief Executive Officer | F | −597 | −$55.28K |
| 2026-10-05 | Christopher M Starr | Director | MIXED | — | −$659.34K |
| 2026-10-02 | Andrew Cittadine | Chief Operating Officer | MIXED | +2,440 | −$154.88K |
| 2026-10-02 | Quan Anh Vu | Chief Financial Officer | MIXED | +434 | −$14.34K |
| 2026-10-02 | Chandler Robinson | Chief Executive Officer | MIXED | +5,457 | −$346.09K |
| 2026-09-28 | Chandler Robinson | Chief Executive Officer | MIXED | — | −$1.93M |
| 2026-08-28 | Raymond Anderson | Director | MIXED | — | −$257.58K |
| 2026-08-28 | Kim R Tsuchimoto | Director | MIXED | — | −$365.43K |
| 2026-08-27 | Raymond Anderson | Director | Sell | −3,142 | −$351.19K |
| 2026-08-27 | Patrice Rioux | — | MIXED | +1,379 | −$104 |
| 2026-08-27 | Kim R Tsuchimoto | Director | Sell | −4,090 | −$455.57K |
| 2026-07-02 | Quan Anh Vu | Chief Financial Officer | MIXED | +721 | −$46.94K |
| 2026-07-02 | Andrew Cittadine | Chief Operating Officer | MIXED | +2,945 | −$213.79K |
| 2026-07-02 | Chandler Robinson | Chief Executive Officer | MIXED | +8,789 | −$378.14K |
| 2026-04-02 | Andrew Cittadine | Chief Operating Officer | MIXED | +1,943 | −$86.08K |
| 2026-04-02 | Chandler Robinson | Chief Executive Officer | MIXED | +4,760 | −$108.05K |
| 2026-03-04 | Susan Rodriguez | CCSO | A | +48,728 deriv. | — |
| 2026-01-30 | Chandler Robinson | Chief Executive Officer | J | +62,815 | — |
| 2026-01-05 | Patrice Rioux | — | A | +2,000 deriv. | — |
| 2026-01-05 | Chandler Robinson | Chief Executive Officer | MIXED | +6,166 | −$167.04K |
| 2026-01-05 | Andrew Cittadine | Chief Operating Officer | MIXED | +2,437 | −$123.35K |
| 2025-12-29 | Quan Anh Vu | Chief Financial Officer | Buy | +1,500 | +$104.92K |
| 2025-12-19 | Arthur J Klausner | Director | Sell | −5,121 | −$343.89K |
| 2025-12-17 | Arthur J Klausner | Director | J | +7,710 | — |
| 2025-12-17 | Diane Hendricks | 10%+ Owner | J | −43,499 | — |
| 2025-12-08 | Kim R Tsuchimoto | Director | A | +2,924 deriv. | — |
| 2025-12-08 | Arthur J Klausner | Director | A | +2,924 deriv. | — |
| 2025-12-08 | Christopher M Starr | Director | A | +2,924 deriv. | — |
| 2025-12-08 | Chandler Robinson | Chief Executive Officer | A | +65,886 deriv. | — |
| 2025-12-08 | Raymond Anderson | Director | A | +2,924 deriv. | — |
| 2025-12-08 | Lavina Talukdar | Director | A | +2,924 deriv. | — |
| 2025-12-08 | Quan Anh Vu | Chief Financial Officer | A | +16,961 deriv. | — |
| 2025-12-08 | Andrew Cittadine | Chief Operating Officer | A | +22,888 deriv. | — |
| 2025-10-02 | Chandler Robinson | Chief Executive Officer | MIXED | +6,080 | −$216.10K |
| 2025-10-02 | Andrew Cittadine | Chief Operating Officer | MIXED | +2,431 | −$154.85K |
| 2025-09-26 | Andrew Paul Mazar | — | Sell | −550,229 | −$35.00M |
| 2025-07-16 | Kim R Tsuchimoto | Director | MIXED | — | −$356.13K |
| 2025-07-16 | Chandler Robinson | Chief Executive Officer | MIXED | — | −$671.94K |
| 2025-07-16 | Christopher M Starr | Director | MIXED | — | −$671.94K |
| 2025-07-02 | Andrew Cittadine | Chief Operating Officer | MIXED | +3,873 | −$106.98K |
| 2025-07-02 | Chandler Robinson | Chief Executive Officer | MIXED | +7,479 | −$209.85K |
| 2025-04-04 | Thomas V. O'Halloran | — | Sell | −33,334 | −$1.17M |
| 2025-04-02 | Chandler Robinson | Chief Executive Officer | MIXED | +2,902 | −$43.84K |
| 2025-04-02 | Andrew Cittadine | Chief Operating Officer | MIXED | +1,047 | −$27.09K |
| 2025-03-07 | Kim R Tsuchimoto | Director | A | +11,365 deriv. | — |
| 2025-03-07 | Arthur J Klausner | Director | A | +11,365 deriv. | — |
| 2025-03-07 | Christopher M Starr | Director | A | +11,365 deriv. | — |
| 2025-03-07 | Raymond Anderson | Director | A | +11,365 deriv. | — |
| 2025-03-07 | Lavina Talukdar | Director | A | +5,683 deriv. | — |
| 2025-03-07 | Chandler Robinson | Chief Executive Officer | MIXED | +4,243 | −$55.76K |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Thomas V. O'Halloran | — | 822,255 | $54.84M |
| Arthur J Klausner | Director | 620,302 | $41.37M |
| Andrew Paul Mazar | Chief Scientific Officer | 305,359 | $20.36M |
| Chandler Robinson | Chief Executive Officer | 166,942 | $11.13M |
| Diane Hendricks | 10%+ Owner | 93,750 | $6.25M |
| Andrew Cittadine | Chief Operating Officer | 58,054 | $3.87M |
| Christopher M Starr | Director | 15,852 | $1.06M |
| Kim R Tsuchimoto | Director | 14,476 | $965.40K |
| Raymond Anderson | Director | 6,775 | $451.82K |
| Patrice Rioux | — | 5,065 | $337.78K |
| Quan Anh Vu | Chief Financial Officer | 2,655 | $177.06K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the MNPR quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.