Michael Castagna, CEO of MannKind Corp ($MNKD), made one open-market purchase of shares in the last year totaling $259 thousand, with the most recent on March 10, 2026. This ranks 1,269th among nearly 5,000 insiders averaging 1.5 million per buyer. He sold shares four times for $1.25 million, most recently on December 17, 2025, ranking 4,425th out of about 12 thousand insiders averaging $8.6 million per seller.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 23, 2026 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | A | Performance Restricted Stock Unit | 796000 | $0.00 | 796,000.0000 | 313,339,000 | 9999.99% | 0.25% |
| March 23, 2026 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | A | Employee Stock Option (right to buy) | 782000 | $0.00 | 782,000.0000 | 313,339,000 | 9999.99% | 0.25% |
| March 10, 2026 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | P | Common Stock, $0.01 Par Value | 100000 | $2.59 | 2,575,911.0000 | 313,339,000 | 4.04% | 0.03% |
| Feb. 26, 2026 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | A | Employee Stock Option (right to buy) | 37525 | $0.00 | 37,525.0000 | 313,339,000 | 9999.99% | 0.01% |
| Feb. 26, 2026 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | A | Employee Stock Option (right to buy) | 50000 | $0.00 | 50,000.0000 | 313,339,000 | 9999.99% | 0.02% |
| March 1, 2026 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | A | Common Stock, $0.01 Par Value | 15290 | $3.27 | 2,475,911.0000 | 313,339,000 | 0.62% | 0.00% |
| Feb. 26, 2026 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | A | Employee Stock Option (right to buy) | 57750 | $0.00 | 57,750.0000 | 313,339,000 | 9999.99% | 0.02% |
| Dec. 24, 2025 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | G | Common Stock, $0.01 Par Value | 44171 | $0.00 | 2,460,621.0000 | 313,339,000 | 1.76% | 0.01% |
| Dec. 17, 2025 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | M | Employee Stock Option (Right to Buy) | 15804 | $0.00 | 0.0000 | 313,339,000 | 100.00% | 0.01% |
| Dec. 17, 2025 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | S | Common Stock, $0.01 Par Value | 65804 | $6.01 | 2,504,792.0000 | 313,339,000 | 2.56% | 0.02% |
| Dec. 17, 2025 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | M | Common Stock, $0.01 Par Value | 65804 | $4.55 | 2,570,596.0000 | 313,339,000 | 2.63% | 0.02% |
| Dec. 17, 2025 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | M | Employee Stock Option (Right to Buy) | 50000 | $0.00 | 0.0000 | 313,339,000 | 100.00% | 0.02% |
| Dec. 12, 2025 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | S | Common Stock, $0.01 Par Value | 20806 | $6.00 | 2,504,792.0000 | 313,339,000 | 0.82% | 0.01% |
| Dec. 12, 2025 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | M | Common Stock, $0.01 Par Value | 20806 | $4.55 | 2,525,598.0000 | 313,339,000 | 0.83% | 0.01% |
| Dec. 12, 2025 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | M | Employee Stock Option (Right to Buy) | 12886 | $0.00 | 37,114.0000 | 313,339,000 | 25.77% | 0.00% |
| Dec. 16, 2025 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | M | Employee Stock Option (Right to Buy) | 21310 | $0.00 | 15,804.0000 | 313,339,000 | 57.42% | 0.01% |
| Dec. 12, 2025 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | M | Employee Stock Option (Right to Buy) | 7920 | $0.00 | 0.0000 | 313,339,000 | 100.00% | 0.00% |
| Dec. 16, 2025 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | S | Common Stock, $0.01 Par Value | 21310 | $6.00 | 2,504,792.0000 | 313,339,000 | 0.84% | 0.01% |
| Dec. 16, 2025 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | M | Common Stock, $0.01 Par Value | 21310 | $4.55 | 2,526,102.0000 | 313,339,000 | 0.85% | 0.01% |
| Dec. 2, 2025 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | S | Common Stock, $0.01 Par Value | 107920 | $5.57 | 2,504,792.0000 | 313,339,000 | 4.13% | 0.03% |
| Dec. 2, 2025 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | M | Employee Stock Option (Right to Buy) | 42080 | $0.00 | 7,920.0000 | 313,339,000 | 84.16% | 0.01% |
| Dec. 2, 2025 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | M | Employee Stock Option (Right to Buy) | 65840 | $0.00 | 0.0000 | 313,339,000 | 100.00% | 0.02% |
| Dec. 2, 2025 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | M | Common Stock, $0.01 Par Value | 107920 | $4.55 | 2,612,712.0000 | 313,339,000 | 4.31% | 0.03% |
| July 15, 2025 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | F | Common Stock, $0.01 Par Value | 111275 | $3.85 | 2,504,792.0000 | 283,844,000 | 4.25% | 0.04% |
| May 19, 2025 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | F | Common Stock, $0.01 Par Value | 26114 | $4.37 | 2,612,934.0000 | 283,844,000 | 0.99% | 0.01% |
| May 14, 2025 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | A | Common Stock, $0.01 Par Value | 27000 | $4.56 | 2,639,048.0000 | 283,844,000 | 1.03% | 0.01% |
| May 13, 2025 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | A | Common Stock, $0.01 Par Value | 428000 | $0.00 | 2,612,048.0000 | 283,844,000 | 19.60% | 0.15% |
| May 10, 2025 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | A | Common Stock, $0.01 Par Value | 298560 | $0.00 | 2,553,896.0000 | 283,844,000 | 13.24% | 0.11% |
| May 12, 2025 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | F | Common Stock, $0.01 Par Value | 334954 | $4.56 | 2,218,942.0000 | 283,844,000 | 13.12% | 0.12% |
| May 12, 2025 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | F | Common Stock, $0.01 Par Value | 34894 | $4.56 | 2,184,048.0000 | 283,844,000 | 1.57% | 0.01% |
| May 13, 2025 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | A | Performance Restricted Stock Unit | 523000 | $0.00 | 523,000.0000 | 283,844,000 | 9999.99% | 0.18% |
| April 4, 2025 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | J | Common Stock, $0.01 Par Value | 39500 | $0.00 | 2,255,336.0000 | 283,844,000 | 1.72% | 0.01% |
| Aug. 27, 2024 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | F | Common Stock, $0.01 Par Value | 56085 | $5.38 | 2,412,836.0000 | 267,014,000 | 2.27% | 0.02% |
| Aug. 28, 2024 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | G | Common Stock, $0.01 Par Value | 13894 | $0.00 | 2,398,942.0000 | 267,014,000 | 0.58% | 0.01% |
| Aug. 29, 2024 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | G | Common Stock, $0.01 Par Value | 19000 | $0.00 | 2,379,942.0000 | 267,014,000 | 0.79% | 0.01% |
| Aug. 29, 2024 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | S | Common Stock, $0.01 Par Value | 85106 | $6.30 | 2,294,836.0000 | 267,014,000 | 3.58% | 0.03% |
| July 15, 2024 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | F | Common Stock, $0.01 Par Value | 47309 | $5.83 | 2,468,921.0000 | 267,014,000 | 1.88% | 0.02% |
| June 30, 2024 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | A | Common Stock, $0.01 Par Value | 5000 | $3.09 | 2,516,230.0000 | 267,014,000 | 0.20% | 0.00% |
| May 17, 2024 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | F | Common Stock, $0.01 Par Value | 245443 | $4.59 | 2,537,297.0000 | 267,014,000 | 8.82% | 0.09% |
| May 18, 2024 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | F | Common Stock, $0.01 Par Value | 26067 | $4.59 | 2,511,230.0000 | 267,014,000 | 1.03% | 0.01% |
| May 17, 2024 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | A | Common Stock, $0.01 Par Value | 221480 | $4.59 | 2,782,740.0000 | 267,014,000 | 8.65% | 0.08% |
| May 15, 2024 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | A | Common Stock, $.01 Par Value | 465000 | $0.00 | 2,614,260.0000 | 267,014,000 | 21.64% | 0.17% |
| May 17, 2024 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | J | Common Stock, $.01 Par Value | 28670 | $4.32 | 2,585,590.0000 | 267,014,000 | 1.10% | 0.01% |
| May 17, 2024 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | J | Common Stock, $.01 Par Value | 24330 | $4.79 | 2,561,260.0000 | 267,014,000 | 0.94% | 0.01% |
| May 15, 2024 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | A | Performance Restricted Stock Unit | 569000 | $0.00 | 569,000.0000 | 267,014,000 | 9999.99% | 0.21% |
| May 10, 2024 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | F | Common Stock, $.01 Par Value | 34830 | $4.32 | 2,149,260.0000 | 267,014,000 | 1.59% | 0.01% |
| Feb. 4, 2024 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | A | Common Stock, $0.01 Par Value | 30581 | $3.27 | 2,184,090.0000 | 267,014,000 | 1.42% | 0.01% |
| June 30, 2023 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | A | Common Stock, $0.01 Par Value | 4635 | $3.46 | 2,153,300.0000 | 257,092,000 | 0.22% | 0.00% |
| Dec. 31, 2023 | MANNKIND CORP | $MNKD | Castagna Michael | Chief Executive Officer | A | Common Stock, $0.01 Par Value | 209 | $3.09 | 2,153,509.0000 | 257,092,000 | 0.01% | 0.00% |