MannKind Corporation (MNKD) has 20 known insider and institutional holders on record. The largest holder is Edstrom Hakan with 1,049,605 shares. Other notable holders include MANN ALFRED E and Marasco Dominic.
Over the last 12 months, insiders have made 73 transactions in MNKD stock — 38 buys (valued at $5.56M) and 9 sells (valued at $1.67M). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
MNKD Insider Ownership
Top Holder
Edstrom Hakan
1,049,605 shares
Buys (12 mo)
38
$5.56M value
Sells (12 mo)
9
$1.67M value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Edstrom Hakan |
President & CEO |
1,049,605 |
2015-09-03 |
|
| 2 |
Mann Alfred E |
Executive Chairman |
1,018,340 |
2015-09-03 |
|
| 3 |
Marasco Dominic |
Pres, Endocrine Business Unit |
1,000,000 |
2025-06-25 |
|
| 4 |
Castagna Michael |
Chief Executive Officer |
782,000 |
2026-03-25 |
|
| 5 |
Kocinsky Joseph |
Chief Technology Officer |
745,233 |
2022-08-29 |
|
| 6 |
Galindo Alejandro |
EVP Endocrine Business Unit |
539,790 |
2022-08-24 |
|
| 7 |
Blank Burkhard |
EVP Chief Medical Officer |
460,791 |
2025-07-17 |
|
| 8 |
Sabella Lauren M |
EVP Operations |
349,841 |
2025-07-17 |
|
| 9 |
Hooper Anthony C |
Director |
236,153 |
2026-03-03 |
|
| 10 |
Thomson David |
EVP Genl Counsel & Secretary |
217,000 |
2026-03-25 |
|
| 11 |
Ahuja Ajay |
Chief Medical Officer |
217,000 |
2026-03-25 |
|
| 12 |
Singh Sanjay R |
EVP Technical Operations |
217,000 |
2026-03-25 |
|
| 13 |
Prentiss Christopher B |
Chief Financial Officer |
217,000 |
2026-03-25 |
|
| 14 |
Tross Stuart A |
Chief People & Workpl Officer |
217,000 |
2026-03-25 |
|
| 15 |
Ingram Elizabeth Garrett |
Chief Marketing Officer |
105,000 |
2019-05-16 |
|
| 16 |
Alinaya Rosabel Realica |
VP, IR & Treasury |
96,119 |
2020-08-31 |
|
| 17 |
Adreveno Linda A |
Sr. VP, HR |
92,200 |
2016-02-29 |
|
| 18 |
Martens Juergen |
Corporate VP and COO |
87,073 |
2015-09-03 |
|
| 19 |
Pfeffer Matthew J |
Director |
81,961 |
2017-08-29 |
|
| 20 |
Nordhoff Henry L |
Director |
72,115 |
2019-05-16 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-03-23 |
Ahuja Ajay |
Chief Medical Officer |
RSU Award |
217,000 |
$2.44 |
$529.48K |
| 2026-03-23 |
Singh Sanjay R |
EVP Technical Operations |
RSU Award |
217,000 |
$2.44 |
$529.48K |
| 2026-03-23 |
Prentiss Christopher B |
Chief Financial Officer |
RSU Award |
217,000 |
$2.44 |
$529.48K |
| 2026-03-23 |
Castagna Michael |
Chief Executive Officer |
RSU Award |
782,000 |
$2.44 |
$1.91M |
| 2026-03-23 |
Tross Stuart A |
Chief People & Workpl Officer |
RSU Award |
217,000 |
$2.44 |
$529.48K |
| 2026-03-23 |
Thomson David |
EVP Genl Counsel & Secretary |
RSU Award |
217,000 |
$2.44 |
$529.48K |
| 2026-03-10 |
Castagna Michael |
Chief Executive Officer |
Informative Buy |
100,000 |
$2.59 |
$259K |
| 2026-03-01 |
Prentiss Christopher B |
Chief Financial Officer |
RSU Award |
5,000 |
$3.27 |
$16.35K |
| 2026-03-01 |
Shannon James Samuel |
Director |
RSU Award |
12,000 |
$3.27 |
$39.24K |
| 2026-03-01 |
Hooper Anthony C |
Director |
RSU Award |
35,000 |
$3.27 |
$114.45K |
| 2026-02-26 |
Binder Steven B. |
Director |
RSU Award |
45,025 |
$1.47 |
$66.19K |
| 2026-03-01 |
Castagna Michael |
Chief Executive Officer |
RSU Award |
15,290 |
$3.27 |
$50K |
| 2026-02-26 |
Castagna Michael |
Chief Executive Officer |
RSU Award |
37,525 |
$1.42 |
$53.29K |
| 2026-03-01 |
Tross Stuart A |
Chief People & Workpl Officer |
RSU Award |
15,290 |
$3.27 |
$50K |
| 2026-02-26 |
Tross Stuart A |
Chief People & Workpl Officer |
RSU Award |
20,000 |
$4.55 |
$91K |
| 2026-02-26 |
Thomson David |
EVP Genl Counsel & Secretary |
RSU Award |
20,000 |
$4.55 |
$91K |
| 2026-01-08 |
Tross Stuart A |
Chief People & Workpl Officer |
Informative Sell |
47,006 |
$6.33 |
$297.55K |
| 2025-12-24 |
Castagna Michael |
Chief Executive Officer |
Gift (Given) |
44,171 |
- |
- |
| 2025-12-17 |
Castagna Michael |
Chief Executive Officer |
Option Exercise (Sell) |
50,000 |
$4.55 |
$227.5K |
| 2025-12-16 |
Castagna Michael |
Chief Executive Officer |
Option Exercise (Sell) |
21,310 |
$4.55 |
$96.96K |
| 2025-12-12 |
Castagna Michael |
Chief Executive Officer |
Option Exercise (Sell) |
7,920 |
$4.55 |
$36.04K |
| 2025-12-02 |
Castagna Michael |
Chief Executive Officer |
Option Exercise (Sell) |
65,840 |
$4.55 |
$299.57K |
| 2025-12-02 |
Thomson David |
EVP Genl Counsel & Secretary |
Option Exercise (Sell) |
87,780 |
$4.60 |
$403.79K |
| 2025-11-14 |
Singh Sanjay R |
EVP Technical Operations |
Informative Sell |
18,777 |
$5.03 |
$94.45K |
| 2025-11-11 |
Ahuja Ajay |
Chief Medical Officer |
RSU Award |
318,200 |
- |
- |
