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sellWeak cluster of 210b5-1 plan

Chandler Robinson sold $2.6M of MNPR

Chief Executive Officer at Monopar Therapeutics. 29,056 shares at an average of $88.00, traded Sep 24, 2026, filed Sep 28, 2026.

Warning score
28
Value
$2.6M
29,056 shares
Holdings after
99,267
-23% from before
From 52-week low
+77%
low $50.12, close $88.84
From 52-week high
-28%
high $123.84, as of Sep 24, 2026

Score components

  • Role
    CEO
    +25
  • Trade size
    $2.6M at market
    +25
  • Share of holdings sold
    Sold 23% of holdings
    +5
  • Cluster
    2 insiders selling within 14 days
    +8
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

MNPROct 9, 2026 · close 78.96
Since filing Sep 28, 2026: -5.7%SPY +1.7% · excess -7.4%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001437749-26-031411, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 24, 2026MOption exercise
Common Stock10b5-1
+14,056$30.00$422k113,32315 d ago
Sep 24, 2026MOption exercise
Common Stock10b5-1
+15,000$14.00$210k128,32315 d ago
Sep 24, 2026SOpen-market sale
Common Stock10b5-1
-10,450$87.15$911k117,87315 d ago
Sep 24, 2026SOpen-market sale
Common Stock10b5-1
-9,638$87.96$848k108,23515 d ago
Sep 24, 2026SOpen-market sale
Common Stock10b5-1
-8,368$88.97$745k99,86715 d ago
Sep 24, 2026SOpen-market sale
Common Stock10b5-1
-600$89.79$54k99,26715 d ago
Sep 24, 2026MOption exercise
Stock Optionderivative10b5-1
-14,056$0.00$015,04415 d ago
Sep 24, 2026MOption exercise
Stock Optionderivative10b5-1
-15,000$0.00$027,20415 d ago

Related signals

Other insiders at Monopar Therapeutics and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
28Weak
MNPRsell 210b5-1
Monopar Therapeutics
Christopher M Starr
director
$659k
8,400 shares
-62%
20Weak
MNPRsell 310b5-1
Monopar Therapeutics
Raymond Anderson
director
$352k
3,142 shares
-37%
32Weak
MNPRsell 310b5-1
Monopar Therapeutics
Kim R Tsuchimoto
director
$456k
4,090 shares
-100%
30Weak
MNPRsell 310b5-1
Monopar Therapeutics
Raymond Anderson
director
$351k
3,142 shares
-12%
37Weak
MNPRsell 310b5-1
Monopar Therapeutics
Kim R Tsuchimoto
director
$456k
4,090 shares
-36%
0Weak
MNPRsell 310b5-1
Monopar Therapeutics
Patrice Rioux
other
$111
1 shares
-0%
48Moderate
MNPRbuy
Monopar Therapeutics
Quan Anh Vu
Chief Financial Officer
$105k
1,500 shares
-
40Moderate
MNPRsell
Monopar Therapeutics
Arthur J Klausner
director
$344k
5,121 shares
-37%
70Notable
MNPRsell
Monopar Therapeutics
Chandler Robinson
Chief Executive Officer
$35M
550,229 shares
-67%
65Notable
MNPRsell 3
Monopar Therapeutics
Chandler Robinson
Chief Executive Officer
$672k
16,800 shares
-19%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Chandler Robinson sold $2.6M of MNPR | InsiderTell