Castagna Michael insider trades
Castagna Michael has filed 48 Form 4s with the SEC that we hold, all for Mannkind Corp (MNKD), as Chief Executive Officer, Director. Across all of them we count 6 purchases worth $371.3K and 22 sales worth $4.4M reported on Form 4. In the last 12 months: 1 purchase ($259.0K) and 4 sales ($1.2M). The largest single trade was a sale of 150,000 shares of Mannkind Corp worth $703.5K, dated 2023-05-24. The first filing on our record is dated 2021-08-02 and the latest 2026-07-17.
Mannkind Corp (MNKD)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2021-07-30 | P, purchase reported on Form 4 | 5,000 | $15.0K | 2021-08-02 |
| 2022-01-31 | P, purchase reported on Form 4 | 1,804 | $5.7K | 2022-02-09 |
| 2022-01-31 | P, purchase reported on Form 4 | 2,334 | $7.4K | 2022-02-02 |
| 2022-02-28 | P, purchase reported on Form 4 | 27,675 | $75.0K | 2022-03-01 |
| 2022-07-31 | P, purchase reported on Form 4 | 3,147 | $9.2K | 2022-08-01 |
| 2023-03-01 | S, sale reported on Form 4 | 10,000 | $52.7K | 2023-03-03 |
| 2023-04-03 | S, sale reported on Form 4 | 10,000 | $41.3K | 2023-04-05 |
| 2023-05-05 | S, sale reported on Form 4 | 10,000 | $40.0K | 2023-05-05 |
| 2023-05-24 | S, sale reported on Form 4 | 150,000 | $703.5K | 2023-05-24 |
| 2023-05-25 | S, sale reported on Form 4 | 75,000 | $344.2K | 2023-05-26 |
| 2023-05-26 | S, sale reported on Form 4 | 75,000 | $337.5K | 2023-05-26 |
| 2023-06-01 | S, sale reported on Form 4 | 10,000 | $45.3K | 2023-06-02 |
| 2023-07-03 | S, sale reported on Form 4 | 4,414 | $18.0K | 2023-07-07 |
| 2023-07-03 | S, sale reported on Form 4 | 10,000 | $40.7K | 2023-07-05 |
| 2023-07-05 | S, sale reported on Form 4 | 5,586 | $22.4K | 2023-07-07 |
| 2023-08-01 | S, sale reported on Form 4 | 10,000 | $45.7K | 2023-08-01 |
| 2023-09-01 | S, sale reported on Form 4 | 10,000 | $46.1K | 2023-09-05 |
| 2023-10-02 | S, sale reported on Form 4 | 10,000 | $40.8K | 2023-10-03 |
| 2023-11-01 | S, sale reported on Form 4 | 10,000 | $42.5K | 2023-11-02 |
| 2023-12-14 | S, sale reported on Form 4 | 100,000 | $400.0K | 2023-12-15 |
| 2023-12-14 | S, sale reported on Form 4 | 10,000 | $40.0K | 2023-12-15 |
| 2023-12-15 | S, sale reported on Form 4 | 90,482 | $361.9K | 2023-12-15 |
| 2024-08-29 | S, sale reported on Form 4 | 85,106 | $536.2K | 2024-08-29 |
| 2025-12-02 | S, sale reported on Form 4 | 107,920 | $601.1K | 2025-12-04 |
| 2025-12-12 | S, sale reported on Form 4 | 20,806 | $124.8K | 2025-12-16 |
| 2025-12-16 | S, sale reported on Form 4 | 21,310 | $127.9K | 2025-12-16 |
| 2025-12-17 | S, sale reported on Form 4 | 65,804 | $395.5K | 2025-12-19 |
| 2026-03-10 | P, purchase reported on Form 4 | 100,000 | $259.0K | 2026-03-10 |
Counted from the Form 4 filings this reporting owner (SEC CIK 1674282) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.
Source: U.S. Securities and Exchange Commission (EDGAR) and other official
government data · Updated 2026-10-12 ·
For informational purposes only, not investment advice.
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