Michael Castagna

Companies

• MannKind CorporationBoard member Jun 14, 2017 to now¹
• MannKind CorporationChief executive officer Jun 14, 2017 to now¹
• MannKind CorporationChief Commercial Officer May 18, 2016 to Aug 29, 2016²

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• MannKind Corporation MNKD2,435,279 shares³$7.5M at $3.10Jul 15, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Jul 15, 2026Shares withheld for tax 58,904 shares at $4.09 of MannKind Corporation³
• Jul 15, 2026Shares withheld for tax 63,996 shares at $4.09 of MannKind Corporation³
• Jul 15, 2026Shares withheld for tax 47,481 shares at $4.09 of MannKind Corporation³
• Jul 15, 2026Shares withheld for tax 192,819 shares at $4.09 of MannKind Corporation³
• Jul 15, 2026Exercised options 350,260 shares of MannKind Corporation³
• May 11, 2026Shares withheld for tax 34,957 shares at $3.52 of MannKind Corporation⁴
• Mar 10, 2026Bought 100,000 shares at $2.59 of MannKind Corporation⁵
• Mar 1, 2026Granted 15,290 shares at $3.27 of MannKind Corporation⁶
• Dec 24, 2025Gift 44,171 shares of MannKind Corporation⁷
• Dec 17, 2025Sold 65,804 shares at $6.01 of MannKind Corporation⁸
• Dec 17, 2025Exercised options 65,804 shares at $4.55 of MannKind Corporation⁸
• Dec 16, 2025Sold 21,310 shares at $6.00 of MannKind Corporation⁹
• Dec 16, 2025Exercised options 21,310 shares at $4.55 of MannKind Corporation⁹
• Dec 12, 2025Sold 20,806 shares at $6.00 of MannKind Corporation⁹
• Dec 12, 2025Exercised options 20,806 shares at $4.55 of MannKind Corporation⁹
• Dec 2, 2025Sold 107,920 shares at $5.57 of MannKind Corporation¹⁰
• Dec 2, 2025Exercised options 107,920 shares at $4.55 of MannKind Corporation¹⁰
• Jul 15, 2025Shares withheld for tax 111,275 shares at $3.85 of MannKind Corporation¹¹
• May 19, 2025Shares withheld for tax 26,114 shares at $4.37 of MannKind Corporation¹²
• May 14, 2025Granted 27,000 shares at $4.56 of MannKind Corporation¹³
• May 13, 2025Granted 428,000 shares of MannKind Corporation¹⁴
• May 12, 2025Shares withheld for tax 34,894 shares at $4.56 of MannKind Corporation¹⁴
• May 12, 2025Shares withheld for tax 334,954 shares at $4.56 of MannKind Corporation¹⁴
• May 10, 2025Granted 298,560 shares of MannKind Corporation¹⁴
• Apr 4, 2025Other 39,500 shares of MannKind Corporation¹⁵