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Mannkind Corp. insider trading

In twelve months insiders at Mannkind bought $259K and sold $3.3M on the open market; 14 of the 14 sales were under plans set months before.

Bought on the open market$259K1 purchase
Sold on the open market$3.3M14 sales
Sales set in advance14 of 14under Rule 10b5-1 plans
Pay taken in stock30 by own choice
New to this? How to read this page
  1. Insiders are the people who run the company: officers, directors and owners of 10% or more. They must report a trade on Form 4 within two business days.
  2. A purchase on the open market is the strongest sign: the insider spent their own money.
  3. A sale under a trading plan (Rule 10b5-1) says little: its dates were fixed months before. Sales outside a plan say more, but insiders sell for many reasons, such as taxes or a house.
  4. Grants, option exercises and shares held back for tax are left out.
  5. What is a Form 4? · Form 4 codes

What kind of trades

1 purchase worth $259K against 14 sales worth $3.3M; 14 of the sales were under plans set months before.

Purchasebought with their own money
Pay in stock, own choiceowed cash, chose shares
Sale outside a planthe insider picked the day
Sale under a plandates fixed months before
Says littlecompany plans, board pay, cash units
Bought
13 says little
Sold
14 under a plan

Every Form 4 line of the last twelve months, counted by kind. The grades come from the filing itself: whether the insider paid cash, whether a plan set the date, whether pay was taken in stock by choice.

Insider trades on the share price

last twelve months

18 marks over twelve months, each in its grade: solid for the stronger signs, hollow or grey for the ones that say little.

PurchasePay in stock, own choiceSale outside a planSale under a planSays little

The blue line is the daily close over twelve months. Each mark is one insider's trades on one day, on that day's price, sized by dollar value. Solid marks are the stronger signs; hollow and grey marks say little. Hover or tap a mark for who, how much and why.

Trades worth a closer look

A purchase stands out when two or more of these hold: a senior insider, several insiders buying within 90 days, a fall of 10% or more in the three months before, or over $1 million. A sale outside a plan is judged the same way. These are the Feed's rules.

Who traded

dollars, twelve months

5 insiders traded. The most: Castagna Michael, sale under a plan $1.2M; purchase $259K.

One row per insider, sold to the left and bought to the right, split by grade: the paler part of a bar is the part that says little.

How it compares

every company on the site

Open-market sales, twelve months

Open-market purchases, twelve months

    The bar ranks every company on the site from the lowest on the left to the highest on the right, in three equal thirds; the small figures under it are the values where each third starts, and the black tick is the middle company. The orange dot is this company; the grey ticks are the other companies in its industry (hover or tap for names). A hatched block is companies tied at none.

    Every Form 4 line

    Purchase: bought on the open market with their own moneyTook pay in stock, own choice: owed cash, chose shares instead; a softer signSale: sold on the open market, not under a plan set in advanceSale, trading plan: under a Rule 10b5-1 plan set up months before, so the date was fixed in advanceGrey lines: plan purchases, pay in stock taken by the whole board or under a company plan, and units paid in cash; they say little about the insider's own view
    TradedInsiderRoleTypeSharesPriceValueFiling
    25 September 2026Binder Steven B.DirectorSaletrading plan set in advance · Form 144 notice 25 September 202639,051$3.29$128,478Form 4
    10 September 2026Binder Steven B.DirectorSaletrading plan set in advance · Form 144 notice 10 September 202633,558$3.81$127,856Form 4
    7 August 2026Binder Steven B.DirectorSaletrading plan set in advance · Form 144 notice 7 August 202639,051$4.06$158,547Form 4
    17 July 2026Thomson DavidEVP Genl Counsel & SecretarySaletrading plan set in advance · Form 144 notice 17 July 202624,109$4.05$97,641Form 4
    17 July 2026Binder Steven B.DirectorSaletrading plan set in advance · Form 144 notice 17 July 202652,485$4.06$213,089Form 4
    20 May 2026Consiglio Ronald JDirectorTook pay in stockone of 3 insiders the same day · Restricted Stock Unit16,556n/an/aForm 4
    20 May 2026Hooper Anthony CDirectorTook pay in stockone of 3 insiders the same day · Restricted Stock Unit16,556n/an/aForm 4
    20 May 2026Shannon James SamuelDirectorTook pay in stockone of 3 insiders the same day · Restricted Stock Unit16,556n/an/aForm 4
    12 May 2026Binder Steven B.DirectorSaletrading plan set in advance · Form 144 notice 12 May 202616,940$3.29$55,733Form 4
    12 May 2026Thomson DavidEVP Genl Counsel & SecretarySaletrading plan set in advance · Form 144 notice 12 May 20263,033$3.29$9,979Form 4
    10 March 2026Castagna MichaelChief Executive OfficerPurchaseafter a 55% fall over three months · 58% below its one-year high100,000$2.59$259,000Form 4
    8 January 2026Tross Stuart AChief People & Workpl OfficerSaletrading plan set in advance · Form 144 notice 8 January 202647,006$6.33$297,548Form 4
    17 December 2025Castagna MichaelChief Executive OfficerSaletrading plan set in advance · Form 144 notice 12 December 202565,804$6.01$395,482Form 4
    16 December 2025Castagna MichaelChief Executive OfficerSaletrading plan set in advance · Form 144 notice 12 December 202521,310$6.00$127,860Form 4
    12 December 2025Castagna MichaelChief Executive OfficerSaletrading plan set in advance · Form 144 notice 12 December 202520,806$6.00$124,836Form 4
    2 December 2025Castagna MichaelChief Executive OfficerSaletrading plan set in advance · Form 144 notice 2 December 2025107,920$5.57$601,114Form 4
    2 December 2025Thomson DavidEVP Genl Counsel & SecretarySaletrading plan set in advance · Form 144 notice 2 December 2025147,780$5.57$823,135Form 4
    14 November 2025Singh Sanjay REVP Technical OperationsSaletrading plan set in advance · Form 144 notice 14 November 202518,777$5.03$94,448Form 4
    A filing with several lines appears once per line.
    Read morePay taken in stock by the insider's own choice has the filing's footnote, word for word, in the note under it; for the others, hold the pointer on the type. An award filed at no price shows n/a.