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sellWeak cluster of 210b5-1 plan

David Thomson sold $29k of MNKD

EVP Genl Counsel & Secretary at MANNKIND CORP. 7,466 shares at an average of $3.94, traded Jul 16, 2025, filed Jul 17, 2025.

Warning score
8
Value
$29k
7,466 shares
Holdings after
841,719
-1% from before
From 52-week low
+12%
low $3.54, close $3.96
From 52-week high
-47%
high $7.44, as of Jul 16, 2025

Score components

  • Role
    Officer
    +15
  • Trade size
    $29k at market
    +5
  • Share of holdings sold
    Sold 0.9% 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 Jul 17, 2025: -15.6%SPY +25.7% · excess -41.3%

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 0000950170-25-096737, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jul 15, 2025FTax withholding
Common Stock, $0.01 Par Value10b5-1
-30,361$3.85$117k849,185Jul 17, 2025
Jul 16, 2025SOpen-market sale
Common Stock, $0.01 Par Value10b5-1
-7,466$3.94$29k841,719Jul 17, 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%
6Weak
MNKDsell10b5-1
MANNKIND CORP
Michael Castagna
Chief Executive Officer
$395k
65,804 shares
-3%
3Weak
MNKDsell10b5-1
MANNKIND CORP
Michael Castagna
Chief Executive Officer
$253k
42,116 shares
-2%
9Weak
MNKDsell10b5-1
MANNKIND CORP
Michael Castagna
Chief Executive Officer
$601k
107,920 shares
-4%
8Weak
MNKDsell10b5-1
MANNKIND CORP
Stuart A Tross
Chief People & Workpl Officer
$251k
47,000 shares
-4%
17Weak
MNKDsell 210b5-1
MANNKIND CORP
Steven B. Binder
director
$297k
75,367 shares
-8%
8Weak
MNKDsell10b5-1
MANNKIND CORP
Steven B. Binder
director
$256k
64,085 shares
-6%
10Weak
MNKDsell 210b5-1
MANNKIND CORP
Steven B. Binder
director
$53k
12,078 shares
-1%
3Weak
MNKDsell 210b5-1
MANNKIND CORP
David Thomson
EVP Genl Counsel & Secretary
$10k
2,345 shares
-0%

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 $29k of MNKD | InsiderTell