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sellWeak cluster of 210b5-1 plan

David Thomson sold $151k of MNKD

EVP Genl Counsel & Secretary at MANNKIND CORP. 32,179 shares at an average of $4.68, traded May 13, 2025, filed May 15, 2025.

Warning score
14
Value
$151k
32,179 shares
Holdings after
772,427
-4% from before
From 52-week low
+6%
low $4.44, close $4.72
From 52-week high
-37%
high $7.44, as of May 13, 2025

Score components

  • Role
    Officer
    +15
  • Trade size
    $151k at market
    +11
  • Share of holdings sold
    Sold 4.0% of holdings
    0
  • Cluster
    2 insiders selling within 14 days
    +8
  • 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 May 15, 2025: -27.9%SPY +34.0% · excess -61.9%

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 0000950170-25-073082, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
May 10, 2025AGrant or award
Common Stock, $0.01 Par Value10b5-1
+105,600$0.00$0935,443May 15, 2025
May 12, 2025FTax withholding
Common Stock, $0.01 Par Value10b5-1
-118,473$4.56$540k816,970May 15, 2025
May 12, 2025FTax withholding
Common Stock, $0.01 Par Value10b5-1
-12,364$4.56$56k804,606May 15, 2025
May 13, 2025SOpen-market sale
Common Stock, $0.01 Par Value10b5-1
-32,179$4.68$151k772,427May 15, 2025
May 13, 2025AGrant or award
Common Stock, $0.01 Par Value10b5-1
+119,000$0.00$0891,427May 15, 2025
May 13, 2025AGrant or award
Performance Restricted Stock Unitderivative10b5-1
+145,000$0.00$0145,000May 15, 2025

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
6Weak
MNKDsell10b5-1
MANNKIND CORP
Steven B. Binder
director
$128k
39,051 shares
-5%
6Weak
MNKDsell10b5-1
MANNKIND CORP
Steven B. Binder
director
$128k
33,558 shares
-4%
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%
17Weak
MNKDsell 210b5-1
MANNKIND CORP
Michael Castagna
Chief Executive Officer
$601k
107,920 shares
-4%
16Weak
MNKDsell 210b5-1
MANNKIND CORP
David Thomson
EVP Genl Counsel & Secretary
$823k
147,780 shares
-15%
5Weak
MNKDsell10b5-1
MANNKIND CORP
Sanjay R Singh
EVP Technical Operations
$94k
18,777 shares
-4%
8Weak
MNKDsell10b5-1
MANNKIND CORP
Stuart A Tross
Chief People & Workpl Officer
$251k
47,000 shares
-4%

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 $151k of MNKD | InsiderTell