Senior insider sale
Chief Executive Officer at MANNKIND CORP — senior position signals high conviction
$1.23M
215.84K shares
What this filing means
CASTAGNA MICHAEL plans to sell 215.84K shares of MANNKIND CORP valued at approximately $1.23M. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.
Filed: 12/12/2025ACC: 0001950047-25-010237
DirectorOfficer· Chief Executive Officer
Since Feb 2026
215.84K
Shares to sell
$1.23M
Approx. market value
107.92K
Acquired (3 months)
1
Planned
1 completed
Securities Acquired — Last 3 Months1
Exercise of Stock Options
Cash
12/12/2025
107.92KTotal acquired107.92K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
12/12/2025 | Exercise of Stock Options Cash | 107.92K | — |
| Total | 107.92K | ||
Planned & Completed Dispositions2
Completed
—Completed
Units to sell
107.92K
Market value
$600.8K
12/2/2025
Planned — Approximate Date
NASDAQPlanned
Units to sell
107.92K
Market value
$627.0K
12/12/2025
Total
Units
215.84K
Value
$1.23M
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
| Completed | ||||
12/2/2025 | 107.92K | $600.8K | — | Completed |
| Planned — Approximate Date | ||||
12/12/2025 | 107.92K | $627.0K | NASDAQ | Planned |
| Total | 215.84K | $1.23M | ||