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sellNotable

Chandler Robinson sold $35M of MNPR

Chief Executive Officer at Monopar Therapeutics. 550,229 shares at an average of $63.61, traded Sep 24, 2025, filed Sep 26, 2025.

Warning score
70
Value
$35M
550,229 shares
Holdings after
272,026
-67% from before
From 52-week low
+1556%
low $4.41, close $73.04
From 52-week high
0%
high $73.04, as of Sep 24, 2025

Score components

  • Role
    CEO
    +25
  • Trade size
    $35.0M at market
    +25
  • Share of holdings sold
    Sold 67% of holdings
    +20
  • Cluster
    No other insider selling within 14 days
    0

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.

This signal so far: 1m +6.4%, 3m -10.3%, 6m -29.4%.

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 12, 2026 · close 77.05
Since filing Sep 26, 2025: +0.5%SPY +18.8% · excess -18.3%

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 0001437749-25-029925, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 24, 2025SOpen-market sale
Common Stock
-550,229$63.61$35M272,026Sep 26, 2025

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%
28Weak
MNPRsell 210b5-1
Monopar Therapeutics
Chandler Robinson
Chief Executive Officer
$2.6M
29,056 shares
-23%
20Weak
MNPRsell 310b5-1
Monopar Therapeutics
Raymond Anderson
director
$352k
3,142 shares
-37%
32Weak
MNPRsell 310b5-1
Monopar Therapeutics
Kim R Tsuchimoto
Chief Financial Officer
$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
Chief Financial Officer
$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%
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 $35M of MNPR | InsiderTell