Monopar Therapeutics's three largest insider shareholders as of September 29, 2026 are Diane Hendricks (TenPercentOwner, 567.58K shares), Pharma Llc Tactic (TenPercentOwner, 272.03K shares), Chandler Robinson (Chief Executive Officer, 99.27K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Diane Hendricks | TenPercentOwner | 0 | 567,580 | 567,580 | 52.8% | 17 Dec, 2025 |
| 2 | Pharma Llc Tactic | TenPercentOwner | 272,026 | 0 | 272,026 | 25.3% | 26 Sep, 2025 |
| 3 | Chandler Robinson | Chief Executive Officer | 99,267 | 0 | 99,267 | 9.2% | 28 Sep, 2026 |
| 4 | Andrew Cittadine | Chief Operating Officer | 55,614 | 0 | 55,614 | 5.2% | 02 Jul, 2026 |
| 5 | Michael J Brown | Director | 47,173 | 0 | 47,173 | 4.4% | 03 Jan, 2024 |
| 6 | Arthur J Klausner | Director | 8,762 | 0 | 8,762 | 0.8% | 19 Dec, 2025 |
| 7 | Raymond Anderson | Director | 5,373 | 0 | 5,373 | 0.5% | 28 Aug, 2026 |
| 8 | Christopher M Starr | Director | 5,173 | 0 | 5,173 | 0.5% | 16 Jul, 2025 |
| 9 | Patrice Rioux | Other | 5,065 | 0 | 5,065 | 0.5% | 27 Aug, 2026 |
| 10 | Andrew Paul Mazar | Chief Scientific Officer | 4,425 | 0 | 4,425 | 0.4% | 01 Apr, 2022 |
| 11 | Quan Anh Vu | Chief Financial Officer | 2,221 | 0 | 2,221 | 0.2% | 02 Jul, 2026 |
| 12 | Karthik Radhakrishnan | Chief Financial Officer | 1,550 | 0 | 1,550 | 0.1% | 30 Oct, 2024 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 24 Sep, 2026 | Chandler Robinson | Chief Executive Officer | Acquired M | 14,056 | $30.00 | $421.68K | 113,323 | Direct |
| 24 Sep, 2026 | Chandler Robinson | Chief Executive Officer | Acquired M | 15,000 | $14.00 | $210.00K | 128,323 | Direct |
| 24 Sep, 2026 | Chandler Robinson | Chief Executive Officer | Disposed S | 10,450 | $87.15 | $910.72K | 117,873 | Direct |
| 24 Sep, 2026 | Chandler Robinson | Chief Executive Officer | Disposed S | 9,638 | $87.96 | $847.76K | 108,235 | Direct |
| 24 Sep, 2026 | Chandler Robinson | Chief Executive Officer | Disposed S | 8,368 | $88.97 | $744.50K | 99,867 | Direct |
| 24 Sep, 2026 | Chandler Robinson | Chief Executive Officer | Disposed S | 600 | $89.79 | $53.87K | 99,267 | Direct |
| 24 Sep, 2026 | Chandler Robinson | Chief Executive Officer | Disposed M | 14,056 | $0.00 | $0 | 15,044 | Direct |
| 24 Sep, 2026 | Chandler Robinson | Chief Executive Officer | Disposed M | 15,000 | $0.00 | $0 | 27,204 | Direct |
| 26 Aug, 2026 | Kim R Tsuchimoto | Director | Acquired M | 2,055 | $30.00 | $61.65K | 2,055 | Direct |
| 25 Aug, 2026 | Raymond Anderson | Director | Acquired M | 1,402 | $30.00 | $42.06K | 6,775 | Direct |
| 26 Aug, 2026 | Kim R Tsuchimoto | Director | Acquired M | 2,035 | $14.00 | $28.49K | 4,090 | Direct |
| 25 Aug, 2026 | Raymond Anderson | Director | Acquired M | 1,740 | $30.00 | $52.20K | 8,515 | Direct |
| 26 Aug, 2026 | Kim R Tsuchimoto | Director | Disposed S | 485 | $108.83 | $52.78K | 3,605 | Direct |
| 25 Aug, 2026 | Raymond Anderson | Director | Disposed S | 694 | $110.04 | $76.37K | 7,821 | Direct |
| 25 Aug, 2026 | Raymond Anderson | Director | Disposed S | 646 | $111.07 | $71.75K | 7,175 | Direct |
| 26 Aug, 2026 | Kim R Tsuchimoto | Director | Disposed S | 615 | $109.56 | $67.38K | 2,990 | Direct |
| 26 Aug, 2026 | Kim R Tsuchimoto | Director | Disposed S | 700 | $110.65 | $77.46K | 2,290 | Direct |
| 25 Aug, 2026 | Raymond Anderson | Director | Disposed S | 1,802 | $113.05 | $203.72K | 5,373 | Direct |
| 26 Aug, 2026 | Kim R Tsuchimoto | Director | Disposed S | 1,098 | $111.84 | $122.80K | 1,192 | Direct |
| 25 Aug, 2026 | Raymond Anderson | Director | Acquired M | 1,402 | $0.00 | $0 | 2,803 | Direct |