Michael Castagna
CIK 1674282 · Chief Executive Officer · last filed 2026-05-13
Michael Castagna is a Chief Executive Officer who has filed 74 SEC Form 4 insider transactions across 1 company since 2016. The most recent filing shows the insider had shares withheld for taxes covering $123.0K of MNKD on May 13, 2026. Across all open-market trades the lifetime net is −$3.8M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $8.9M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$8.94M
1
74
-$3.79M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MNKD | Chief Executive Officer | 2,443,810 | $3.66 | $8.94M | -$3.79M | 74 | 2026-05-13 |
Recent Filings
74 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-13 | MNKD | Tax (F) | −34,957 | -$123.0K | EDGAR |
| 2026-05-08 | MNKD | — | — | $0 | EDGAR |
| 2026-03-25 | MNKD | Grant (A) | — | $0 | EDGAR |
| 2026-03-10 | MNKD | Buy (P) | +100,000 | $259.0K | EDGAR |
| 2026-03-02 | MNKD | Grant (A) | +15,290 | $50.0K | EDGAR |
| 2025-12-29 | MNKD | Gift (G) | −44,171 | $0 | EDGAR |
| 2025-12-19 | MNKD | Mixed | — | -$96.1K | EDGAR |
| 2025-12-16 | MNKD | Mixed | — | -$61.1K | EDGAR |
| 2025-12-04 | MNKD | Mixed | — | -$110.1K | EDGAR |
| 2025-07-17 | MNKD | Tax (F) | −111,275 | -$428.4K | EDGAR |