Michael Castagna insider trades: Mannkind (MNKD) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Michael reports to the SEC
Open-market buys and sales
38 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Mar 10, 2026 | MNKD | ↑ Buy | 100,000 | $2.59 | $259K | Direct | Mar 10, 2026 (0d) |
| Dec 17, 2025 | MNKD | ↓ Sell | 65,804 | $6.01 | $395K | Direct | Dec 19, 2025 (2d) |
| Dec 16, 2025 | MNKD | ↓ Sell | 42,116 | $6.00 | $253K | Direct | Dec 16, 2025 (0d) |
| Dec 2, 2025 | MNKD | ↓ Sell | 107,920 | $5.57 | $601K | Direct | Dec 4, 2025 (2d) |
| Aug 29, 2024 | MNKD | ↓ Sell | 85,106 | $6.30 | $536K | Direct | Aug 29, 2024 (0d) |
| Dec 15, 2023 | MNKD | ↓ Sell | 200,482 | $4.00 | $802K | Direct | Dec 15, 2023 (0d) |
| Nov 1, 2023 | MNKD | ↓ Sell | 10,000 | $4.25 | $43K | Direct | Nov 2, 2023 (1d) |
| Oct 2, 2023 | MNKD | ↓ Sell | 10,000 | $4.61 | $46K | Direct | Oct 2, 2023 (0d) |
| Sep 1, 2023 | MNKD | ↓ Sell | 10,000 | $4.61 | $46K | Direct | Sep 5, 2023 (4d) |
| Aug 1, 2023 | MNKD | ↓ Sell | 10,000 | $4.57 | $46K | Direct | Aug 1, 2023 (0d) |
| Jul 3, 2023 | MNKD | ↓ Sell | 10,000 | $4.07 | $41K | Direct | Jul 5, 2023 (2d) |
| Jun 1, 2023 | MNKD | ↓ Sell | 10,000 | $4.53 | $45K | Direct | Jun 2, 2023 (1d) |
| May 26, 2023 | MNKD | ↓ Sell | 150,000 | $4.55 | $682K | Direct | May 26, 2023 (0d) |
| May 24, 2023 | MNKD | ↓ Sell | 150,000 | $4.69 | $703K | Direct | May 24, 2023 (0d) |
| May 5, 2023 | MNKD | ↓ Sell | 10,000 | $4.00 | $40K | Direct | May 5, 2023 (0d) |
| Apr 3, 2023 | MNKD | ↓ Sell | 10,000 | $4.13 | $41K | Direct | Apr 5, 2023 (2d) |
| Mar 1, 2023 | MNKD | ↓ Sell | 10,000 | $5.27 | $53K | Direct | Mar 3, 2023 (2d) |
| Jul 31, 2022 | MNKD | ↑ Buy | 3,147 | $2.93 | $9K | Direct | Aug 1, 2022 (1d) |
| Feb 28, 2022 | MNKD | ↑ Buy | 27,675 | $2.71 | $75K | Direct | Mar 1, 2022 (1d) |
| Jan 31, 2022 | MNKD | ↑ Buy | 2,334 | $3.17 | $7K | Direct | Feb 2, 2022 (2d) |
| Jul 30, 2021 | MNKD | ↑ Buy | 5,000 | $2.99 | $15K | Direct | Aug 2, 2021 (3d) |
| Mar 5, 2021 | MNKD | ↑ Buy | 3,000 | $3.38 | $10K | By Spouse | Mar 8, 2021 (3d) |
| Jan 31, 2021 | MNKD | ↑ Buy | 5,000 | $1.33 | $7K | Direct | Feb 2, 2021 (2d) |
| Jul 31, 2020 | MNKD | ↑ Buy | 5,000 | $1.25 | $6K | Direct | Aug 4, 2020 (4d) |
| Jun 15, 2020 | MNKD | ↑ Buy | 30,000 | $1.49 | $45K | Direct | Jun 16, 2020 (1d) |
| Jun 15, 2020 | MNKD | ↑ Buy | 10,000 | $1.41 | $14K | By Spouse | Jun 16, 2020 (1d) |
| Jun 15, 2020 | MNKD | ↑ Buy | 431 | $1.47 | $634 | By Child | Jun 16, 2020 (1d) |
| Jan 31, 2020 | MNKD | ↑ Buy | 5,000 | $0.95 | $5K | Direct | Feb 3, 2020 (3d) |
| Jul 31, 2019 | MNKD | ↑ Buy | 5,000 | $0.95 | $5K | Direct | Jul 31, 2019 (0d) |
| Jan 31, 2019 | MNKD | ↑ Buy | 5,000 | $1.07 | $5K | Direct | Jan 31, 2019 (0d) |
| Aug 2, 2018 | MNKD | ↑ Buy | 5,000 | $1.31 | $7K | Direct | Aug 6, 2018 (4d) |
| Dec 20, 2017 | MNKD | ↑ Buy | 6,500 | $2.29 | $15K | Direct | Dec 20, 2017 (0d) |
| Dec 20, 2017 | MNKD | ↑ Buy | 1,500 | $2.28 | $3K | By Spouse | Dec 20, 2017 (0d) |
| Aug 26, 2016 | MNKD | ↑ Buy | 17,500 | $0.78 | $14K | Direct | Aug 29, 2016 (3d) |
| Aug 24, 2016 | MNKD | ↑ Buy | 15,000 | $0.87 | $13K | Direct | Aug 24, 2016 (0d) |
| Aug 23, 2016 | MNKD | ↑ Buy | 25,000 | $0.94 | $23K | Direct | Aug 24, 2016 (1d) |
| Aug 12, 2016 | MNKD | ↑ Buy | 25,000 | $1.00 | $25K | Direct | Aug 16, 2016 (4d) |
| May 17, 2016 | MNKD | ↑ Buy | 50,000 | $0.93 | $47K | Direct | May 18, 2016 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other MNKD insiders
Open-market trades in the last 12 months
About Michael Castagna's insider trades
Michael Castagna is Chief Executive Officer at Mannkind (MNKD). Since May 17, 2016, Michael has reported 22 open-market purchases worth $609K and 16 sales worth $4.4M on SEC Form 4. In the last 12 months: 1 buy ($259K) and 3 sales ($1.2M).
Their filings also include grants and awards (21 filings), shares withheld for taxes (16 filings), option exercises (4 filings), other transactions (3 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every MNKD insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.