MannKind Corporation (MNKD) Insider Trading
Over the last 3 months, MNKD insiders made 1 open-market buy and 2 sales, a net purchase of $193K (SEC Form 4). Over the last 6 months, 190 institutions increased and 140 reduced their position (13F).
Insider Activity
Sentiment
83/100
Buys (3m)
1
Sells (3m)
2
Net (3m)
$193.3K
Insiders buying
Insider trades by month Buys Sells
Sep
Nov
Dec
Jan
Mar
May
Context3-month price +13.9%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| May 22, 2026 | Grancio Jenniferdirector | Grant | 82,781 | — |
| May 22, 2026 | Consiglio Ronald Jdirector | Grant | 16,556 | — |
| May 22, 2026 | HOOPER ANTHONY Cdirector | Grant | 16,556 | — |
| May 22, 2026 | Consiglio Ronald Jdirector | Grant | 82,781 | — |
| May 22, 2026 | Binder Steven B.director | Grant | 82,781 | — |
| May 22, 2026 | Tross Stuart Aofficer: Chief People & Workpl Officer | Grant | 33,898 | $2.95 |
| May 22, 2026 | HOOPER ANTHONY Cdirector | Grant | 82,781 | — |
| May 22, 2026 | Marasco Dominicofficer: Pres, Endocrine Business Unit | Grant | 8,474 | $2.95 |
| May 22, 2026 | Consiglio Ronald Jdirector | Grant | 10,000 | $2.95 |
| May 22, 2026 | Friedman Michael Adirector | Grant | 82,781 | — |
| May 22, 2026 | Shannon James Samueldirector | Grant | 82,781 | — |
| May 22, 2026 | MUNDKUR CHRISTINEdirector | Grant | 82,781 | — |
| May 22, 2026 | Kay Sabrinadirector | Grant | 82,781 | — |
| May 22, 2026 | Shannon James Samueldirector | Grant | 16,556 | — |
| May 13, 2026 | Thomson Davidofficer: EVP Genl Counsel & Secretary | Tax | 12,387 | $3.52 |
| May 13, 2026 | Castagna Michaeldirector, officer: Chief Executive Officer | Tax | 34,957 | $3.52 |
| May 13, 2026 | Tross Stuart Aofficer: Chief People & Workpl Officer | Tax | 8,073 | $3.52 |
| May 13, 2026 | Binder Steven B.director | Sell | 16,940 | $3.29 |
| May 13, 2026 | Binder Steven B.director | Tax | 5,560 | $3.52 |
| May 13, 2026 | Thomson Davidofficer: EVP Genl Counsel & Secretary | Sell | 3,033 | $3.29 |
| Apr 24, 2026 | Prentiss Christopher Bofficer: Chief Financial Officer | Tax | 12,267 | $2.74 |
| Mar 25, 2026 | Prentiss Christopher Bofficer: Chief Financial Officer | Grant | 217,000 | $2.44 |
| Mar 25, 2026 | Tross Stuart Aofficer: Chief People & Workpl Officer | Grant | 217,000 | $2.44 |
| Mar 25, 2026 | Prentiss Christopher Bofficer: Chief Financial Officer | Grant | 221,000 | — |
| Mar 25, 2026 | Castagna Michaeldirector, officer: Chief Executive Officer | Grant | 796,000 | — |
| Mar 25, 2026 | Ahuja Ajayofficer: Chief Medical Officer | Grant | 221,000 | — |
| Mar 25, 2026 | Thomson Davidofficer: EVP Genl Counsel & Secretary | Grant | 217,000 | $2.44 |
| Mar 25, 2026 | Tross Stuart Aofficer: Chief People & Workpl Officer | Grant | 221,000 | — |
| Mar 25, 2026 | Ahuja Ajayofficer: Chief Medical Officer | Grant | 217,000 | $2.44 |
| Mar 25, 2026 | Castagna Michaeldirector, officer: Chief Executive Officer | Grant | 782,000 | $2.44 |
Source: MNKD SEC Form 4 filings, latest May 22, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their MNKD positions over the last 6 months (SEC Form 13F).
Increased
190
New positions
81
Reduced
140
Sold out
73
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Increased | 28.9M | Feb 12, 2026 |
| BLACKROCK, INC. | Reduced | 28.6M | May 13, 2026 |
| STATE STREET CORP | Increased | 18.7M | May 15, 2026 |
| VANGUARD GROUP INC | Increased | 17.9M | Jan 29, 2026 |
| STATE STREET CORP | Increased | 14.6M | Feb 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 12.9M | May 15, 2026 |
| UBS GROUP AG | Increased | 8.3M | May 5, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 7.5M | May 15, 2026 |
| RUBRIC CAPITAL MANAGEMENT LP | Reduced | 7.5M | Feb 13, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 7.4M | Feb 9, 2026 |
| MILLENNIUM MANAGEMENT LLC | Increased | 6.4M | May 15, 2026 |
| FRAZIER LIFE SCIENCES MANAGEMENT, L.P. | Increased | 5.9M | May 15, 2026 |
| MORGAN STANLEY | Increased | 5.8M | May 15, 2026 |
| NITORUM CAPITAL, L.P. | Reduced | 5.3M | Feb 17, 2026 |
| UBS GROUP AG | Reduced | 5.1M | Jan 29, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.