According to recent filings covering the 90 days ending February 19, 2026, the three most significant insider holders at Monopar Therapeutics are TenPercentOwner Diane Hendricks (567.58K shares), TenPercentOwner Pharma Llc Tactic (272.03K shares), Chief Executive Officer Chandler Robinson (119.05K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Diane Hendricks | 567,580 | 17 Dec, 2025 | |
| Pharma Llc Tactic | 272,026 | 26 Sep, 2025 | |
| Chandler Robinson | Chief Executive Officer | 119,051 | 05 Jan, 2026 |
| Michael J Brown | 47,173 | 03 Jan, 2024 | |
| Andrew Cittadine | Chief Operating Officer | 50,726 | 05 Jan, 2026 |
| Raymond Anderson | 5,373 | 03 Jan, 2024 | |
| Andrew Paul Mazar | Chief Scientific Officer | 4,425 | 01 Apr, 2022 |
| Kim R Tsuchimoto | 11,486 | 16 Jul, 2025 | |
| Arthur J Klausner | 8,762 | 19 Dec, 2025 | |
| Christopher M Starr | 5,173 | 16 Jul, 2025 | |
| Karthik Radhakrishnan | Chief Financial Officer | 1,550 | 30 Oct, 2024 |
| Quan Anh Vu | Chief Financial Officer | 1,500 | 29 Dec, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 31 Dec, 2025 | Chandler Robinson | Common Stock | D | 2,558 | $65.30 | 85,718 | D | F |
| 31 Dec, 2025 | Chandler Robinson | Common Stock | A | 8,724 | - | 88,276 | D | M |
| 31 Dec, 2025 | Andrew Cittadine | Common Stock | A | 4,326 | - | 52,615 | D | M |
| 31 Dec, 2025 | Andrew Cittadine | Common Stock | D | 1,889 | $65.30 | 50,726 | D | F |
| 26 Dec, 2025 | Quan Anh Vu | Common Stock | A | 1,500 | $69.95 | 1,500 | D | P |
| 18 Dec, 2025 | Arthur J Klausner | Common Stock | D | 4,660 | $67.06 | 9,223 | D | S |
| 18 Dec, 2025 | Arthur J Klausner | Common Stock | D | 461 | $68.09 | 8,762 | D | S |
| 16 Dec, 2025 | Arthur J Klausner | Common Stock | A | 7,710 | $0.00 | 13,883 | D | J |
| 16 Dec, 2025 | Diane Hendricks | Common Stock | D | 43,499 | $0.00 | 567,580 | I | J |
| 30 Sep, 2025 | Chandler Robinson | Common Stock | A | 8,726 | - | 82,198 | D | M |
| 30 Sep, 2025 | Chandler Robinson | Common Stock | D | 2,646 | $81.67 | 79,552 | D | F |
| 30 Sep, 2025 | Andrew Cittadine | Common Stock | A | 4,327 | - | 50,185 | D | M |
| 30 Sep, 2025 | Andrew Cittadine | Common Stock | D | 1,896 | $81.67 | 48,289 | D | F |
| 24 Sep, 2025 | Pharma Llc Tactic | - | - | 272,026 | D | |||
| 24 Sep, 2025 | Pharma Llc Tactic | Common Stock | D | 550,229 | $63.61 | 272,026 | D | S |
| 14 Jul, 2025 | Christopher M Starr | Common Stock | A | 16,800 | $0.00 | 21,973 | D | X |
| 14 Jul, 2025 | Christopher M Starr | Common Stock | D | 16,800 | $40.00 | 5,173 | D | S |
| 14 Jul, 2025 | Kim R Tsuchimoto | - | - | 11,486 | D | |||
| 14 Jul, 2025 | Kim R Tsuchimoto | Common Stock | A | 8,904 | $0.00 | 20,390 | D | X |
| 14 Jul, 2025 | Kim R Tsuchimoto | Common Stock | D | 8,904 | $40.00 | 11,486 | D | S |