Mannkind Corp (MNKD) Insider Ownership

Historic Insider Ownership Trends

Mannkind's three largest insider shareholders as of May 30, 2026 are Michael Castagna (Chief Executive Officer, 2.58Mn shares), Michael Castagna (Chief Executive Officer, 2.56Mn shares), Michael Castagna (Chief Executive Officer, 2.10Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Burkhard Blank Evp Chief Medical Officer 496,905 0 17 May, 2024
Ronald J Consiglio - 545,997 0 05 Feb, 2024
Christine Mundkur - 254,493 0 28 Feb, 2022
Anthony C Hooper - 338,394 0 28 Feb, 2022
David Thomson Evp Genl Counsel Secretary 912,446 0 17 May, 2024
Lauren M Sabella Evp Operations 357,849 0 28 Mar, 2025
James Samuel Shannon - 64,635 0 03 Mar, 2026
Stuart A Tross Chief People Workpl Officer 1,145,704 0 17 May, 2024
Joseph Kocinsky Chief Technology Officer 763,429 0 12 May, 2022
Michael Castagna Chief Executive Officer 2,575,911 0 10 Mar, 2026
Steven B. Binder Evp Special Projects 1,132,967 0 17 May, 2024
Christopher B Prentiss Chief Financial Officer 338,924 0 24 Apr, 2026
Jennifer Grancio - 244,815 0 28 Feb, 2022
Alejandro Galindo Evp Endocrine Business Unit 777,075 0 23 Aug, 2022
Sabrina Kay - 265,600 0 05 Feb, 2024
Sanjay R Singh Evp Technical Operations 455,211 0 14 Nov, 2025
Dominic Marasco Pres, Endocrine Business Unit 333,429 0 16 May, 2025
Ajay Ahuja Chief Medical Officer 318,200 0 12 Nov, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
22 Apr, 2026 Christopher B Prentiss Common Stock, $0.01 Par Value D 12,267 $2.74 338,924 D F
23 Mar, 2026 Sanjay R Singh Performance Restricted Stock Unit A 221,000 $0.00 221,000 D A
23 Mar, 2026 Ajay Ahuja Performance Restricted Stock Unit A 221,000 $0.00 221,000 D A
23 Mar, 2026 David Thomson Performance Restricted Stock Unit A 221,000 $0.00 221,000 D A
23 Mar, 2026 Sanjay R Singh Performance Restricted Stock Unit A 221,000 $0.00 221,000 D A
23 Mar, 2026 Sanjay R Singh Performance Restricted Stock Unit A 221,000 $0.00 221,000 D A
23 Mar, 2026 Stuart A Tross Performance Restricted Stock Unit A 221,000 $0.00 221,000 D A
23 Mar, 2026 David Thomson Performance Restricted Stock Unit A 221,000 $0.00 221,000 D A
23 Mar, 2026 David Thomson Performance Restricted Stock Unit A 221,000 $0.00 221,000 D A
23 Mar, 2026 Michael Castagna Performance Restricted Stock Unit A 796,000 $0.00 796,000 D A
23 Mar, 2026 Stuart A Tross Performance Restricted Stock Unit A 221,000 $0.00 221,000 D A
23 Mar, 2026 Christopher B Prentiss Performance Restricted Stock Unit A 221,000 $0.00 221,000 D A
23 Mar, 2026 Stuart A Tross Performance Restricted Stock Unit A 221,000 $0.00 221,000 D A
23 Mar, 2026 David Thomson Employee Stock Option (right to buy) A 217,000 $0.00 217,000 D A
23 Mar, 2026 Sanjay R Singh Employee Stock Option (right to buy) A 217,000 $0.00 217,000 D A
23 Mar, 2026 Stuart A Tross Employee Stock Option (right to buy) A 217,000 $0.00 217,000 D A
23 Mar, 2026 Stuart A Tross Employee Stock Option (right to buy) A 217,000 $0.00 217,000 D A
23 Mar, 2026 Stuart A Tross Employee Stock Option (right to buy) A 217,000 $0.00 217,000 D A
23 Mar, 2026 Sanjay R Singh Employee Stock Option (right to buy) A 217,000 $0.00 217,000 D A
23 Mar, 2026 David Thomson Employee Stock Option (right to buy) A 217,000 $0.00 217,000 D A