Chandler Robinson
CIK: 0001727334
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
Monopar Therapeutics
Discretionary Trading P&L
Holdings
Transaction History (34 total)
- Oct 20, 2026MNPR
Monopar Therapeutics
Tax Payment(F)Direct597 shares at avg. $92.59$55K - Sep 30, 2026MNPR
Monopar Therapeutics
Tax Payment(F)Direct4.3K shares at avg. $79.67$346K - Sep 30, 2026MNPR
Monopar Therapeutics
Exercise(M)Direct9.8K shares- - Sep 24, 2026MNPR
Monopar Therapeutics
Sale(S)Direct8.4K shares at avg. $88.97$745K - Sep 24, 2026MNPR
Monopar Therapeutics
Sale(S)Direct9.6K shares at avg. $87.96$848K - Sep 24, 2026MNPR
Monopar Therapeutics
Exercise(M)Direct15K shares at avg. $14.00$210K - Sep 24, 2026MNPR
Monopar Therapeutics
Sale(S)Direct10.5K shares at avg. $87.15$911K - Sep 24, 2026MNPR
Monopar Therapeutics
Exercise(M)Direct14.1K shares at avg. $30.00$422K - Sep 24, 2026MNPR
Monopar Therapeutics
Sale(S)Direct600 shares at avg. $89.79$54K - Jun 30, 2026MNPR
Monopar Therapeutics
Exercise(M)Direct12.9K shares- - Jun 30, 2026MNPR
Monopar Therapeutics
Tax Payment(F)Direct4.1K shares at avg. $92.59$378K - Mar 31, 2026MNPR
Monopar Therapeutics
Tax Payment(F)Direct2K shares at avg. $54.79$108K - Mar 31, 2026MNPR
Monopar Therapeutics
Exercise(M)Direct6.7K shares- - Dec 31, 2025MNPR
Monopar Therapeutics
Exercise(M)Direct8.7K shares- - Dec 31, 2025MNPR
Monopar Therapeutics
Tax Payment(F)Direct2.6K shares at avg. $65.30$167K - Dec 2, 2025MNPR
Monopar Therapeutics
Award(A)DirectStock Options
16.8K shares- - Dec 2, 2025MNPR
Monopar Therapeutics
Award(A)DirectRestricted Stock Units
49.1K shares- - Sep 30, 2025MNPR
Monopar Therapeutics
Exercise(M)Direct8.7K shares- - Sep 30, 2025MNPR
Monopar Therapeutics
Tax Payment(F)Direct2.6K shares at avg. $81.67$216K - Jul 14, 2025MNPR
Monopar Therapeutics
Sale(S)Direct16.8K shares at avg. $40.00$672K - Jul 14, 2025MNPR
Monopar Therapeutics
In-the-Money(X)Direct16.8K shares at avg. $0.01$84 - Jun 30, 2025MNPR
Monopar Therapeutics
Tax Payment(F)Direct5.9K shares at avg. $35.78$210K - Jun 30, 2025MNPR
Monopar Therapeutics
Exercise(M)Direct13.3K shares- - Mar 31, 2025MNPR
Monopar Therapeutics
Exercise(M)Direct4.1K shares- - Mar 31, 2025MNPR
Monopar Therapeutics
Tax Payment(F)Direct1.2K shares at avg. $36.41$44K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Oct 20, 2026 | MNPR Monopar Therapeutics | Tax Payment(F) | 597 | $92.59 | $55,276 | Direct |
| Sep 30, 2026 | MNPR Monopar Therapeutics | Tax Payment(F) | 4,344 | $79.67 | $346,086 | Direct |
| Sep 30, 2026 | MNPR Monopar Therapeutics | Exercise(M) | 9,801 | - | $0 | Direct |
| Sep 24, 2026 | MNPR Monopar Therapeutics | Sale(S) | 8,368 | $88.97 | $744,501 | Direct |
| Sep 24, 2026 | MNPR Monopar Therapeutics | Sale(S) | 9,638 | $87.96 | $847,758 | Direct |
| Sep 24, 2026 | MNPR Monopar Therapeutics | Exercise(M) | 15,000 | $14.00 | $210,000 | Direct |
| Sep 24, 2026 | MNPR Monopar Therapeutics | Sale(S) | 10,450 | $87.15 | $910,718 | Direct |
| Sep 24, 2026 | MNPR Monopar Therapeutics | Exercise(M) | 14,056 | $30.00 | $421,680 | Direct |
| Sep 24, 2026 | MNPR Monopar Therapeutics | Sale(S) | 600 | $89.79 | $53,874 | Direct |
| Jun 30, 2026 | MNPR Monopar Therapeutics | Exercise(M) | 12,873 | - | $0 | Direct |
| Jun 30, 2026 | MNPR Monopar Therapeutics | Tax Payment(F) | 4,084 | $92.59 | $378,138 | Direct |
| Mar 31, 2026 | MNPR Monopar Therapeutics | Tax Payment(F) | 1,972 | $54.79 | $108,046 | Direct |
| Mar 31, 2026 | MNPR Monopar Therapeutics | Exercise(M) | 6,732 | - | $0 | Direct |
| Dec 31, 2025 | MNPR Monopar Therapeutics | Exercise(M) | 8,724 | - | $0 | Direct |
| Dec 31, 2025 | MNPR Monopar Therapeutics | Tax Payment(F) | 2,558 | $65.30 | $167,037 | Direct |
| Dec 2, 2025 | MNPR Monopar Therapeutics | Award(A) Stock Options | 16,753 | - | - | Direct |
| Dec 2, 2025 | MNPR Monopar Therapeutics | Award(A) Restricted Stock Units | 49,133 | - | - | Direct |
| Sep 30, 2025 | MNPR Monopar Therapeutics | Exercise(M) | 8,726 | - | - | Direct |
| Sep 30, 2025 | MNPR Monopar Therapeutics | Tax Payment(F) | 2,646 | $81.67 | $216,099 | Direct |
| Jul 14, 2025 | MNPR Monopar Therapeutics | Sale(S) | 16,800 | $40.00 | $672,020 | Direct |
| Jul 14, 2025 | MNPR Monopar Therapeutics | In-the-Money(X) | 16,800 | $0.01 | $84 | Direct |
| Jun 30, 2025 | MNPR Monopar Therapeutics | Tax Payment(F) | 5,865 | $35.78 | $209,850 | Direct |
| Jun 30, 2025 | MNPR Monopar Therapeutics | Exercise(M) | 13,344 | - | - | Direct |
| Mar 31, 2025 | MNPR Monopar Therapeutics | Exercise(M) | 4,106 | - | - | Direct |
| Mar 31, 2025 | MNPR Monopar Therapeutics | Tax Payment(F) | 1,204 | $36.41 | $43,838 | Direct |
1-25 of 34 transactions
About Robinson Chandler
Robinson Chandler (SEC CIK 0001727334) files insider reports with the SEC as Chief Executive Officer of Monopar Therapeutics (MNPR).
Signal8 holds 15 ownership filings by Robinson Chandler, all Form 4s, filed between Oct 2, 2024 and Oct 20, 2026. Those filings report 34 transactions, from Sep 30, 2024 to Oct 20, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on Robinson Chandler's filings is in WILMETTE, IL.
Recent filings by Robinson Chandler
- Oct 20, 2026: Tax withholding of MNPR shares (Form 4, code F).
- Sep 30, 2026: Tax withholding of MNPR shares (Form 4, code F).
- Sep 30, 2026: Option exercise of MNPR shares (Form 4, code M).
- Sep 24, 2026: Open-market sales of MNPR shares (2 lines, Form 4, code S).
- Sep 24, 2026: Option exercise of MNPR shares (Form 4, code M).
Other insiders filing for Monopar Therapeutics (MNPR)
- STARR CHRISTOPHER M, Director
- Cittadine Andrew, Chief Operating Officer
- Vu Quan Anh, Chief Financial Officer
- Tsuchimoto Kim R, Director
- Anderson Raymond, Director
- RIOUX PATRICE, Officer