Arthur J. Klausner serves as Executive at Monopar Therapeutics, where they oversee executive responsibilities. Since joining the company, Arthur J. Klausner has executed 19 insider transactions totaling $343.9K, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 18, 2025 involved selling 461 shares valued at $31.4K.
Arthur J. Klausner currently holds 8,762 shares of Monopar Therapeutics (MNPR), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Arthur J. Klausner has been a net seller of MNPR stock. They have purchased $0 and sold $343.9K worth of shares.
Arthur J. Klausner's most recent insider trade was on Dec 18, 2025, when they sold 461 shares at $68.09 per share.
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| $67.06 |
| Discretionary |
| Dec 16, 2025 | MNPR | $0 | Other | 7,710 | $N/A | Discretionary |
| Dec 31, 2023 | MNPR | $0 | Option Exercise | 2,533 | $N/A | Discretionary |
| Sep 30, 2023 | MNPR | $0 | Option Exercise | 2,533 | $N/A | Discretionary |
| Jun 30, 2023 | MNPR | $0 | Option Exercise | 2,534 | $N/A | Discretionary |
| Mar 31, 2023 | MNPR | $0 | Option Exercise | 2,533 | $N/A | Discretionary |
| Dec 31, 2022 | MNPR | $0 | Option Exercise | 2,859 | $N/A | Discretionary |
| Sep 30, 2022 | MNPR | $0 | Option Exercise | 2,859 | $N/A | Discretionary |
| Jun 30, 2022 | MNPR | $0 | Option Exercise | 2,859 | $N/A | Discretionary |
| Mar 31, 2022 | MNPR | $0 | Option Exercise | 2,859 | $N/A | Discretionary |
| Dec 31, 2021 | MNPR | $0 | Option Exercise | 751 | $N/A | Discretionary |
| Sep 30, 2021 | MNPR | $0 | Option Exercise | 751 | $N/A | Discretionary |
| Jun 30, 2021 | MNPR | $0 | Option Exercise | 752 | $N/A | Discretionary |
| Mar 31, 2021 | MNPR | $0 | Option Exercise | 751 | $N/A | Discretionary |
| Dec 31, 2020 | MNPR | $0 | Option Exercise | 322 | $N/A | Discretionary |
| Sep 30, 2020 | MNPR | $0 | Option Exercise | 322 | $N/A | Discretionary |
| Jun 30, 2020 | MNPR | $0 | Option Exercise | 323 | $N/A | Discretionary |
| Mar 31, 2020 | MNPR | $0 | Option Exercise | 322 | $N/A | Discretionary |