Skip to content
sellWeak cluster of 210b5-1 plan

David Thomson sold $98k of MNKD

EVP Genl Counsel & Secretary at MANNKIND CORP. 24,109 shares at an average of $4.05, traded Jul 17, 2026, filed Jul 17, 2026.

Warning score
0
Value
$98k
24,109 shares
Holdings after
797,554
-3% from before
From 52-week low
+77%
low $2.28, close $4.03
From 52-week high
-35%
high $6.21, as of Jul 17, 2026

Score components

  • Role
    Officer
    +15
  • Trade size
    $98k at market
    +10
  • Share of holdings sold
    Sold 2.9% of holdings
    0
  • 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.

MNKDOct 9, 2026 · close 3.29
Since filing Jul 17, 2026: -18.4%SPY +4.9% · excess -23.3%

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 0001193125-26-308131, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jul 15, 2026MOption exercise
Common Stock, $0.01 Par Value10b5-1
+93,790$0.00$0920,089Jul 17, 2026
Jul 15, 2026FTax withholding
Common Stock, $0.01 Par Value10b5-1
-51,632$4.09$211k868,457Jul 17, 2026
Jul 15, 2026FTax withholding
Common Stock, $0.01 Par Value10b5-1
-12,662$4.09$52k855,795Jul 17, 2026
Jul 15, 2026FTax withholding
Common Stock, $0.01 Par Value10b5-1
-17,754$4.09$73k838,041Jul 17, 2026
Jul 15, 2026FTax withholding
Common Stock, $0.01 Par Value10b5-1
-16,378$4.09$67k821,663Jul 17, 2026
Jul 17, 2026SOpen-market sale
Common Stock, $0.01 Par Value10b5-1
-24,109$4.05$98k797,554Jul 17, 2026
Jul 15, 2026MOption exercise
Performance Restricted Stock Unitderivative10b5-1
-93,790$0.00$00Jul 17, 2026

Related signals

Other insiders at MANNKIND CORP and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
6Weak
MNKDsell10b5-1
MANNKIND CORP
Steven B. Binder
EVP Special Projects
$128k
39,051 shares
-5%
6Weak
MNKDsell10b5-1
MANNKIND CORP
Steven B. Binder
EVP Special Projects
$128k
33,558 shares
-4%
6Weak
MNKDsell10b5-1
MANNKIND CORP
Steven B. Binder
EVP Special Projects
$159k
39,051 shares
-5%
0Weak
MNKDsell 210b5-1
MANNKIND CORP
Steven B. Binder
EVP Special Projects
$213k
52,485 shares
-6%
10Weak
MNKDsell 210b5-1
MANNKIND CORP
Steven B. Binder
EVP Special Projects
$56k
16,940 shares
-2%
3Weak
MNKDsell 210b5-1
MANNKIND CORP
David Thomson
EVP Genl Counsel & Secretary
$9,979
3,033 shares
-0%
56Moderate
MNKDbuy
MANNKIND CORP
Michael Castagna
Chief Executive Officer
$259k
100,000 shares
+4%
9Weak
MNKDsell10b5-1
MANNKIND CORP
Stuart A Tross
Chief People & Workpl Officer
$298k
47,006 shares
-5%
6Weak
MNKDsell10b5-1
MANNKIND CORP
Michael Castagna
Chief Executive Officer
$395k
65,804 shares
-3%
11Weak
MNKDsell 210b5-1
MANNKIND CORP
Michael Castagna
Chief Executive Officer
$253k
42,116 shares
-2%

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.

David Thomson sold $98k of MNKD | InsiderTell