MannKind Corp is a biopharmaceutical company focused on the development and commercialization of patient-centric therapies that address serious unmet medical needs for those living with cardiometabolic and orphan lung diseases. The Company is currently commercializing three products: Afrezza (insulin human) Inhalation Powder, an ultra rapid-acting inhaled insulin indicated to improve glycemic control in adults with diabetes; Furoscix (furosemide injection), to treat fluid buildup in patients with chronic heart failure or chronic kidney disease; and the V-Go wearable insulin delivery device, which provides continuous subcutaneous infusion of insulin in adults that require insulin.
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 3 | 115,645 | $469K |
| Option exercise | 10 | 1,404,360 | |
| Tax withholding / forfeiture | 22 | 624,494 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
69 Form 4 filings on record, the earliest from Nov 4, 2024, newest first. Filing history page 1 of 3.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Steven B. Binder - Director | Open-market sale | Common Stock, $0.01 Par Value | 39,051 | $4.06 | $159K | |
| Christopher B. Prentiss - Officer | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 11,572 | $4.09 | $47K | |
| Christopher B. Prentiss - Officer | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 10,675 | $4.09 | $44K | |
| Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 3,623 | $4.09 | $15K | ||
| Stuart A. Tross - Officer | Option exercise | Common Stock, $0.01 Par Value | 93,790 | $0.00 | - | |
| Stuart A. Tross - Officer | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 33,652 | $4.09 | $138K | |
| Stuart A. Tross - Officer | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 8,253 | $4.09 | $34K | |
| Stuart A. Tross - Officer | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 11,572 | $4.09 | $47K | |
| Stuart A. Tross - Officer | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 12,331 | $4.09 | $50K | |
| Stuart A. Tross - Officer | Option exercise | Performance Restricted Stock Unit | 93,790 | $0.00 | - | |
| Michael Castagna - Officer | Option exercise | Common Stock, $0.01 Par Value | 350,260 | $0.00 | - | |
| Michael Castagna - Officer | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 192,819 | $4.09 | $789K | |
| Michael Castagna - Officer | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 47,481 | $4.09 | $194K | |
| Michael Castagna - Officer | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 63,996 | $4.09 | $262K | |
| Michael Castagna - Officer | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 58,904 | $4.09 | $241K | |
| Michael Castagna - Officer | Option exercise | Performance Restricted Stock Unit | 350,260 | $0.00 | - | |
| Sanjay R. Singh - Officer | Option exercise | Common Stock, $0.01 Par Value | 70,550 | $0.00 | - | |
| Sanjay R. Singh - Officer | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 22,047 | $4.09 | $90K | |
| Sanjay R. Singh - Officer | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 5,372 | $4.09 | $22K | |
| Sanjay R. Singh - Officer | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 10,079 | $4.09 | $41K | |
| Sanjay R. Singh - Officer | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 9,297 | $4.09 | $38K | |
| Sanjay R. Singh - Officer | Option exercise | Performance Restricted Stock Unit | 70,550 | $0.00 | - | |
| David Thomson - Officer | Option exercise | Common Stock, $0.01 Par Value | 93,790 | $0.00 | - | |
| David Thomson - Officer | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 51,632 | $4.09 | $211K | |
| David Thomson - Officer | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 12,662 | $4.09 | $52K | |
| David Thomson - Officer | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 17,754 | $4.09 | $73K | |
| David Thomson - Officer | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 16,378 | $4.09 | $67K | |
| David Thomson - Officer | Open-market sale | Common Stock, $0.01 Par Value | 24,109 | $4.05 | $98K | |
| David Thomson - Officer | Option exercise | Performance Restricted Stock Unit | 93,790 | $0.00 | - | |
| Steven B. Binder | Option exercise | Common Stock, $0.01 Par Value | 93,790 | $0.00 | - | |
| Steven B. Binder | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 15,688 | $4.09 | $64K | |
| Steven B. Binder | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 4,073 | $4.09 | $17K | |
| Steven B. Binder | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 4,634 | $4.09 | $19K | |
| Steven B. Binder | Open-market sale | Common Stock, $0.01 Par Value | 52,485 | $4.06 | $213K | |
| Steven B. Binder | Option exercise | Performance Restricted Stock Unit | 93,790 | $0.00 | - | |
| Michael A. Friedman | Grant or award | Restricted Stock Unit | 82,781 | $0.00 | - | |
| Ronald J. Consiglio | Grant or award | Common Stock, $0.01 Par Value | 10,000 | $2.95 | $30K | |
| Ronald J. Consiglio | Grant or award | Restricted Stock Unit | 82,781 | $0.00 | - | |
| Ronald J. Consiglio | Grant or award | Restricted Stock Unit | 16,556 | $0.00 | - | |
| Steven B. Binder | Grant or award | Restricted Stock Unit | 82,781 | $0.00 | - | |
| Grant or award | Restricted Stock Unit | 82,781 | $0.00 | - | ||
| Anthony C. Hooper | Grant or award | Restricted Stock Unit | 82,781 | $0.00 | - | |
| Anthony C. Hooper | Grant or award | Restricted Stock Unit | 16,556 | $0.00 | - | |
| James Samuel Shannon | Grant or award | Restricted Stock Unit | 82,781 | $0.00 | - | |
| James Samuel Shannon | Grant or award | Restricted Stock Unit | 16,556 | $0.00 | - | |
| Stuart A. Tross - Officer | Grant or award | Common Stock, $0.01 Par Value | 33,898 | $2.95 | $100K | |
| Grant or award | Common Stock, $0.01 Par Value | 8,474 | $2.95 | $25K | ||
| Grant or award | Restricted Stock Unit | 82,781 | $0.00 | - | ||
| Sabrina Kay | Grant or award | Restricted Stock Unit | 82,781 | $0.00 | - | |
| Stuart A. Tross - Officer | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 8,073 | $3.52 | $28K | |
| Steven B. Binder | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 5,560 | $3.52 | $20K | |
| Steven B. Binder | Open-market sale | Common Stock, $0.01 Par Value | 16,940 | $3.29 | $56K | |
| Michael Castagna - Officer | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 34,957 | $3.52 | $123K | |
| David Thomson - Officer | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 12,387 | $3.52 | $44K | |
| David Thomson - Officer | Open-market sale | Common Stock, $0.01 Par Value | 3,033 | $3.29 | $10K | |
| Christopher B. Prentiss - Officer | Tax withholding / forfeiture | Common Stock, $0.01 Par Value | 12,267 | $2.74 | $34K | |
| Christopher B. Prentiss - Officer | Grant or award | Performance Restricted Stock Unit | 221,000 | $0.00 | - | |
| Christopher B. Prentiss - Officer | Grant or award | Employee Stock Option (right to buy) | 217,000 | $0.00 | - | |
| Michael Castagna - Officer | Grant or award | Performance Restricted Stock Unit | 796,000 | $0.00 | - | |
| Michael Castagna - Officer | Grant or award | Employee Stock Option (right to buy) | 782,000 | $0.00 | - | |
| Sanjay R. Singh - Officer | Grant or award | Performance Restricted Stock Unit | 221,000 | $0.00 | - | |
| Sanjay R. Singh - Officer | Grant or award | Employee Stock Option (right to buy) | 217,000 | $0.00 | - | |
| Ajay Ahuja - Officer | Grant or award | Performance Restricted Stock Unit | 221,000 | $0.00 | - | |
| Ajay Ahuja - Officer | Grant or award | Employee Stock Option (right to buy) | 217,000 | $0.00 | - | |
| Stuart A. Tross - Officer | Grant or award | Performance Restricted Stock Unit | 221,000 | $0.00 | - | |
| Stuart A. Tross - Officer | Grant or award | Employee Stock Option (right to buy) | 217,000 | $0.00 | - | |
| David Thomson - Officer | Grant or award | Performance Restricted Stock Unit | 221,000 | $0.00 | - | |
| David Thomson - Officer | Grant or award | Employee Stock Option (right to buy) | 217,000 | $0.00 | - |
A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| STEVEN BINDER | Director | 39,051 | $152K | View on EDGAR | |
| - | - | - | - | View on EDGAR | |
| - | - | - | - | View on EDGAR |
MANNKIND CORP (MNKD) had 8 insider filings in the last 90 days, with the most recent on 2026-08-11. The full record for MNKD runs to 69 Form 4 filings, the earliest from 2024-11-04. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
No insider purchases of MNKD were filed in the last 90 days. 1 purchase is on record for this company.
3 insider sales of MNKD were filed in the last 90 days, totaling $469K.
This page tracks MNKD Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
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