MANNKIND CORP (MNKD) — insider trading
Health Care · NASDAQ
MANNKIND CORP (MNKD) has 58 reported SEC Form 4 insider transactions in our data, including 7 open-market sales among the most recent 58 (latest 2026-09-25).
Recent Form 4 transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-09-25 | Binder Steven B. | Director | Open-market sale | 39,051 | $3.29 | $128.5K | Form 4 |
| 2026-09-10 | Binder Steven B. | Director | Open-market sale | 33,558 | $3.81 | $127.9K | Form 4 |
| 2026-08-07 | Binder Steven B. | Director | Open-market sale | 39,051 | $4.06 | $158.5K | Form 4 |
| 2026-07-17 | Binder Steven B. | Director | Open-market sale | 52,485 | $4.06 | $213.1K | Form 4 |
| 2026-07-17 | Thomson David | Officer (EVP Genl Counsel & Secretary) | Open-market sale | 24,109 | $4.05 | $97.6K | Form 4 |
| 2026-07-15 | Binder Steven B. | Director | Option exercise / conversion (derivative) | 93,790 | — | $0 | Form 4 |
| 2026-07-15 | Binder Steven B. | Director | Shares withheld for taxes / exercise cost | 4,634 | $4.09 | $19.0K | Form 4 |
| 2026-07-15 | Binder Steven B. | Director | Shares withheld for taxes / exercise cost | 4,073 | $4.09 | $16.7K | Form 4 |
| 2026-07-15 | Binder Steven B. | Director | Shares withheld for taxes / exercise cost | 15,688 | $4.09 | $64.2K | Form 4 |
| 2026-07-15 | Binder Steven B. | Director | Option exercise / conversion | 93,790 | — | $0 | Form 4 |
| 2026-07-15 | Thomson David | Officer (EVP Genl Counsel & Secretary) | Option exercise / conversion (derivative) | 93,790 | — | $0 | Form 4 |
| 2026-07-15 | Thomson David | Officer (EVP Genl Counsel & Secretary) | Shares withheld for taxes / exercise cost | 16,378 | $4.09 | $67.0K | Form 4 |
| 2026-07-15 | Thomson David | Officer (EVP Genl Counsel & Secretary) | Shares withheld for taxes / exercise cost | 17,754 | $4.09 | $72.6K | Form 4 |
| 2026-07-15 | Thomson David | Officer (EVP Genl Counsel & Secretary) | Shares withheld for taxes / exercise cost | 12,662 | $4.09 | $51.8K | Form 4 |
| 2026-07-15 | Thomson David | Officer (EVP Genl Counsel & Secretary) | Shares withheld for taxes / exercise cost | 51,632 | $4.09 | $211.2K | Form 4 |
| 2026-07-15 | Thomson David | Officer (EVP Genl Counsel & Secretary) | Option exercise / conversion | 93,790 | — | $0 | Form 4 |
| 2026-07-15 | Singh Sanjay R | Officer (EVP Technical Operations) | Option exercise / conversion (derivative) | 70,550 | — | $0 | Form 4 |
| 2026-07-15 | Singh Sanjay R | Officer (EVP Technical Operations) | Shares withheld for taxes / exercise cost | 9,297 | $4.09 | $38.0K | Form 4 |
| 2026-07-15 | Singh Sanjay R | Officer (EVP Technical Operations) | Shares withheld for taxes / exercise cost | 10,079 | $4.09 | $41.2K | Form 4 |
| 2026-07-15 | Singh Sanjay R | Officer (EVP Technical Operations) | Shares withheld for taxes / exercise cost | 5,372 | $4.09 | $22.0K | Form 4 |
| 2026-07-15 | Singh Sanjay R | Officer (EVP Technical Operations) | Shares withheld for taxes / exercise cost | 22,047 | $4.09 | $90.2K | Form 4 |
| 2026-07-15 | Singh Sanjay R | Officer (EVP Technical Operations) | Option exercise / conversion | 70,550 | — | $0 | Form 4 |
| 2026-07-15 | Castagna Michael | Director, Officer (Chief Executive Officer) | Option exercise / conversion (derivative) | 350,260 | — | $0 | Form 4 |
| 2026-07-15 | Castagna Michael | Director, Officer (Chief Executive Officer) | Shares withheld for taxes / exercise cost | 58,904 | $4.09 | $240.9K | Form 4 |
| 2026-07-15 | Castagna Michael | Director, Officer (Chief Executive Officer) | Shares withheld for taxes / exercise cost | 63,996 | $4.09 | $261.7K | Form 4 |
| 2026-07-15 | Castagna Michael | Director, Officer (Chief Executive Officer) | Shares withheld for taxes / exercise cost | 47,481 | $4.09 | $194.2K | Form 4 |
| 2026-07-15 | Castagna Michael | Director, Officer (Chief Executive Officer) | Shares withheld for taxes / exercise cost | 192,819 | $4.09 | $788.6K | Form 4 |
| 2026-07-15 | Castagna Michael | Director, Officer (Chief Executive Officer) | Option exercise / conversion | 350,260 | — | $0 | Form 4 |
| 2026-07-15 | Tross Stuart A | Officer (Chief People & Workpl Officer) | Option exercise / conversion (derivative) | 93,790 | — | $0 | Form 4 |
| 2026-07-15 | Tross Stuart A | Officer (Chief People & Workpl Officer) | Shares withheld for taxes / exercise cost | 12,331 | $4.09 | $50.4K | Form 4 |
| 2026-07-15 | Tross Stuart A | Officer (Chief People & Workpl Officer) | Shares withheld for taxes / exercise cost | 11,572 | $4.09 | $47.3K | Form 4 |
| 2026-07-15 | Tross Stuart A | Officer (Chief People & Workpl Officer) | Shares withheld for taxes / exercise cost | 8,253 | $4.09 | $33.8K | Form 4 |
| 2026-07-15 | Tross Stuart A | Officer (Chief People & Workpl Officer) | Shares withheld for taxes / exercise cost | 33,652 | $4.09 | $137.6K | Form 4 |
| 2026-07-15 | Tross Stuart A | Officer (Chief People & Workpl Officer) | Option exercise / conversion | 93,790 | — | $0 | Form 4 |
| 2026-07-15 | Marasco Dominic | Officer (Pres, Endocrine Business Unit) | Shares withheld for taxes / exercise cost | 3,623 | $4.09 | $14.8K | Form 4 |
| 2026-07-15 | Prentiss Christopher B | Officer (Chief Financial Officer) | Shares withheld for taxes / exercise cost | 10,675 | $4.09 | $43.7K | Form 4 |
| 2026-07-15 | Prentiss Christopher B | Officer (Chief Financial Officer) | Shares withheld for taxes / exercise cost | 11,572 | $4.09 | $47.3K | Form 4 |
| 2026-05-20 | Kay Sabrina | Director | Grant / award / vesting (derivative) | 82,781 | — | $0 | Form 4 |
| 2026-05-20 | MUNDKUR CHRISTINE | Director | Grant / award / vesting (derivative) | 82,781 | — | $0 | Form 4 |
| 2026-05-20 | Marasco Dominic | Officer (Pres, Endocrine Business Unit) | Grant / award / vesting | 8,474 | $2.95 | $25.0K | Form 4 |
| 2026-05-20 | Tross Stuart A | Officer (Chief People & Workpl Officer) | Grant / award / vesting | 33,898 | $2.95 | $100.0K | Form 4 |
| 2026-05-20 | Shannon James Samuel | Director | Grant / award / vesting (derivative) | 16,556 | — | $0 | Form 4 |
| 2026-05-20 | Shannon James Samuel | Director | Grant / award / vesting (derivative) | 82,781 | — | $0 | Form 4 |
| 2026-05-20 | HOOPER ANTHONY C | Director | Grant / award / vesting (derivative) | 16,556 | — | $0 | Form 4 |
| 2026-05-20 | HOOPER ANTHONY C | Director | Grant / award / vesting (derivative) | 82,781 | — | $0 | Form 4 |
| 2026-05-20 | Grancio Jennifer | Director | Grant / award / vesting (derivative) | 82,781 | — | $0 | Form 4 |
| 2026-05-20 | Binder Steven B. | Director | Grant / award / vesting (derivative) | 82,781 | — | $0 | Form 4 |
| 2026-05-20 | Consiglio Ronald J | Director | Grant / award / vesting (derivative) | 16,556 | — | $0 | Form 4 |
| 2026-05-20 | Consiglio Ronald J | Director | Grant / award / vesting (derivative) | 82,781 | — | $0 | Form 4 |
| 2026-05-20 | Consiglio Ronald J | Director | Grant / award / vesting | 10,000 | $2.95 | $29.5K | Form 4 |
| 2026-05-20 | Friedman Michael A | Director | Grant / award / vesting (derivative) | 82,781 | — | $0 | Form 4 |
| 2026-05-12 | Thomson David | Officer (EVP Genl Counsel & Secretary) | Open-market sale | 3,033 | $3.29 | $10.0K | Form 4 |
| 2026-05-12 | Binder Steven B. | Director | Open-market sale | 16,940 | $3.29 | $55.7K | Form 4 |
| 2026-05-11 | Thomson David | Officer (EVP Genl Counsel & Secretary) | Shares withheld for taxes / exercise cost | 12,387 | $3.52 | $43.6K | Form 4 |
| 2026-05-11 | Castagna Michael | Director, Officer (Chief Executive Officer) | Shares withheld for taxes / exercise cost | 34,957 | $3.52 | $123.0K | Form 4 |
| 2026-05-11 | Binder Steven B. | Director | Shares withheld for taxes / exercise cost | 5,560 | $3.52 | $19.6K | Form 4 |
| 2026-05-11 | Tross Stuart A | Officer (Chief People & Workpl Officer) | Shares withheld for taxes / exercise cost | 8,073 | $3.52 | $28.4K | Form 4 |
| 2026-04-22 | Prentiss Christopher B | Officer (Chief Financial Officer) | Shares withheld for taxes / exercise cost | 12,267 | $2.74 | $33.6K | Form 4 |
Ask the chat about MNKD's insider activity →
Transaction types are the SEC Form 4 codes: open-market purchases (P) and sales (S) are the only rows that reflect open-market conviction. Awards/vesting (A), option exercises (M/X/C), shares withheld for taxes (F) and gifts (G) are compensation or mechanical, not buying or selling on the open market. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan); open-market buying is not a recommendation to buy. Informational only — not financial advice.
Source: SEC EDGAR Form 3/4/5. See the full company profile: MANNKIND CORP (MNKD).
Last updated 2026-09-25 (most recent filing date).
Informational only — NOT financial advice. Insider filings are sourced from SEC EDGAR and shown with their reported dates.