Castagna Michael (CIK 1674282) reported 25 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-07-17). Recent activity: Buy MNKD (350,260 shares), Sell MNKD (192,819 shares), Sell MNKD (47,481 shares), Sell MNKD (63,996 shares), Sell MNKD (58,904 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-17 | MANNKIND CORP (MNKD) | Chief Executive Officer | Buy | 350,260 | $0 |
| 2026-07-17 | MANNKIND CORP (MNKD) | Chief Executive Officer | Sell | 192,819 | $788,630 |
| 2026-07-17 | MANNKIND CORP (MNKD) | Chief Executive Officer | Sell | 47,481 | $194,197 |
| 2026-07-17 | MANNKIND CORP (MNKD) | Chief Executive Officer | Sell | 63,996 | $261,744 |
| 2026-07-17 | MANNKIND CORP (MNKD) | Chief Executive Officer | Sell | 58,904 | $240,917 |
| 2026-05-13 | MANNKIND CORP (MNKD) | Chief Executive Officer | Sell | 34,957 | $123,049 |
| 2026-03-10 | MANNKIND CORP (MNKD) | Chief Executive Officer | Buy | 100,000 | $259,000 |
| 2026-03-02 | MANNKIND CORP (MNKD) | Chief Executive Officer | Buy | 15,290 | $49,998 |
| 2025-12-29 | MANNKIND CORP (MNKD) | Chief Executive Officer | Sell | 44,171 | $0 |
| 2025-12-19 | MANNKIND CORP (MNKD) | Chief Executive Officer | Buy | 65,804 | $299,408 |
| 2025-12-19 | MANNKIND CORP (MNKD) | Chief Executive Officer | Sell | 65,804 | $395,482 |
| 2025-12-16 | MANNKIND CORP (MNKD) | Chief Executive Officer | Sell | 20,806 | $124,836 |
| 2025-12-16 | MANNKIND CORP (MNKD) | Chief Executive Officer | Buy | 20,806 | $94,667 |
| 2025-12-16 | MANNKIND CORP (MNKD) | Chief Executive Officer | Buy | 21,310 | $96,960 |
| 2025-12-16 | MANNKIND CORP (MNKD) | Chief Executive Officer | Sell | 21,310 | $127,860 |
| 2025-12-04 | MANNKIND CORP (MNKD) | Chief Executive Officer | Buy | 107,920 | $491,036 |
| 2025-12-04 | MANNKIND CORP (MNKD) | Chief Executive Officer | Sell | 107,920 | $601,114 |
| 2025-07-17 | MANNKIND CORP (MNKD) | Chief Executive Officer | Sell | 111,275 | $428,409 |
| 2025-05-20 | MANNKIND CORP (MNKD) | Chief Executive Officer | Sell | 26,114 | $114,118 |
| 2025-05-16 | MANNKIND CORP (MNKD) | Chief Executive Officer | Buy | 27,000 | $123,120 |
| 2025-05-15 | MANNKIND CORP (MNKD) | Chief Executive Officer | Buy | 298,560 | $0 |
| 2025-05-15 | MANNKIND CORP (MNKD) | Chief Executive Officer | Sell | 334,954 | $1.5M |
| 2025-05-15 | MANNKIND CORP (MNKD) | Chief Executive Officer | Sell | 34,894 | $159,117 |
| 2025-05-15 | MANNKIND CORP (MNKD) | Chief Executive Officer | Buy | 428,000 | $0 |
| 2025-04-04 | MANNKIND CORP (MNKD) | Chief Executive Officer | Sell | 39,500 | $0 |
Source: SEC Form 4 filings · as of 2026-07-17