MNPR insider buying and SEC filings, explained
Monopar Therapeutics · CIK 1645469
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$105K
Insiders who bought
1
Sold (not marked 10b5-1)
$344K
Planned sales (10b5-1)
$4.0M
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Oct 1, 2026 | Planned (10b5-1) | Christopher M. Starr (Director) sold 8,400 shares at about $78.50 ($659K), marked as a 10b5-1 plan trade. Holdings down 62% to 5,173 shares. | SEC filing Filed Oct 5, 2026, 5:43 PM ET |
| Sep 24, 2026 | Planned (10b5-1) | Chandler Robinson (CEO and Director) sold 29,056 shares at about $88.00 ($2.6M), marked as a 10b5-1 plan trade. Holdings down 23% to 99,267 shares. | SEC filing Filed Sep 28, 2026 |
| Aug 26, 2026 | Planned (10b5-1) Amended filing | Kim R Tsuchimoto (Director) sold 4,090 shares at about $111.39 ($456K), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. This amends a filing from Aug 27. | SEC filing Filed Aug 28, 2026 |
| Aug 25, 2026 | Planned (10b5-1) Amended filing | Raymond Anderson (Director) sold 3,142 shares at about $111.98 ($352K), marked as a 10b5-1 plan trade. Holdings down 37% to 5,373 shares. This amends a filing from Aug 27. | SEC filing Filed Aug 28, 2026 |
| Aug 26, 2026 | Planned (10b5-1) | Patrice Rioux (Acting Chief Medical Officer) sold 1 shares at $111.26 ($111), marked as a 10b5-1 plan trade. Holdings down <1% to 5,065 shares. | SEC filing Filed Aug 27, 2026 |
| Dec 26, 2025 | Purchase (code P) | Quan Anh Vu (CFO) bought 1,500 shares at $69.95 ($105K), reported as a purchase (code P). New position of 1,500 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 29, 2025 |
| Dec 18, 2025 | Sale | Arthur J. Klausner (Director) sold 5,121 shares at about $67.15 ($344K). Holdings down 37% to 8,762 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 19, 2025 |
30 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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