13 insiders reported 79 Form 4 transactions for MANNKIND CORP (MNKD) over the past 18 months (most recent 2026-05-22). Recent activity: Tross Stuart A (Chief People & Workpl Officer) Buy 33,898 shares, Consiglio Ronald J (Director) Buy 10,000 shares, Marasco Dominic (Pres, Endocrine Business Unit) Buy 8,474 shares, Thomson David (EVP Genl Counsel & Secretary) Sell 12,387 shares, Tross Stuart A (Chief People & Workpl Officer) Sell 8,073 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-22 | Tross Stuart A | Chief People & Workpl Officer | Buy | 33,898 | $99,999 |
| 2026-05-22 | Consiglio Ronald J | Director | Buy | 10,000 | $29,500 |
| 2026-05-22 | Marasco Dominic | Pres, Endocrine Business Unit | Buy | 8,474 | $24,998 |
| 2026-05-13 | Thomson David | EVP Genl Counsel & Secretary | Sell | 12,387 | $43,602 |
| 2026-05-13 | Tross Stuart A | Chief People & Workpl Officer | Sell | 8,073 | $28,417 |
| 2026-05-13 | Castagna Michael | Chief Executive Officer | Sell | 34,957 | $123,049 |
| 2026-05-13 | Binder Steven B. | Director | Sell | 5,560 | $19,571 |
| 2026-05-13 | Thomson David | EVP Genl Counsel & Secretary | Sell | 3,033 | $9,979 |
| 2026-05-13 | Binder Steven B. | Director | Sell | 16,940 | $55,733 |
| 2026-04-24 | Prentiss Christopher B | Chief Financial Officer | Sell | 12,267 | $33,612 |
| 2026-03-10 | Castagna Michael | Chief Executive Officer | Buy | 100,000 | $259,000 |
| 2026-03-03 | Prentiss Christopher B | Chief Financial Officer | Buy | 5,000 | $16,350 |
| 2026-03-03 | HOOPER ANTHONY C | Director | Buy | 35,000 | $114,450 |
| 2026-03-03 | Shannon James Samuel | Director | Buy | 12,000 | $39,240 |
| 2026-03-02 | Tross Stuart A | Chief People & Workpl Officer | Buy | 15,290 | $49,998 |
| 2026-03-02 | Castagna Michael | Chief Executive Officer | Buy | 15,290 | $49,998 |
| 2026-01-09 | Tross Stuart A | Chief People & Workpl Officer | Sell | 47,006 | $297,548 |
| 2025-12-29 | Castagna Michael | Chief Executive Officer | Sell | 44,171 | $0 |
| 2025-12-19 | Castagna Michael | Chief Executive Officer | Buy | 65,804 | $299,408 |
| 2025-12-19 | Castagna Michael | Chief Executive Officer | Sell | 65,804 | $395,482 |
| 2025-12-16 | Castagna Michael | Chief Executive Officer | Buy | 20,806 | $94,667 |
| 2025-12-16 | Castagna Michael | Chief Executive Officer | Sell | 20,806 | $124,836 |
| 2025-12-16 | Castagna Michael | Chief Executive Officer | Buy | 21,310 | $96,960 |
| 2025-12-16 | Castagna Michael | Chief Executive Officer | Sell | 21,310 | $127,860 |
| 2025-12-04 | Castagna Michael | Chief Executive Officer | Buy | 107,920 | $491,036 |
Source: SEC Form 4 filings · as of 2026-05-22