MANNKIND CORP — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Castagna Michael | Chief Executive Officer | Gift | 44,171 | — | — | 2,460,621 | Dec 24, 2025 |
| Castagna Michael | Chief Executive Officer | Option Exercise | 65,804 | $4.55 | $299,408 | 2,570,596 | Dec 17, 2025 |
| Castagna Michael | Chief Executive Officer | Sale | 21,310 | $6.00 | $127,860 | 2,504,792 | Dec 16, 2025 |
| Castagna Michael | Chief Executive Officer | Sale | 107,920 | $5.57 | $601,114 | 2,504,792 | Dec 2, 2025 |
| Thomson David | EVP Genl Counsel & Secretary | Option Exercise | 60,000 | $4.55 | $273,000 | 901,719 | Dec 2, 2025 |
| Singh Sanjay R | EVP Technical Operations | Sale | 18,777 | $5.03 | $94,448 | 455,211 | Nov 14, 2025 |
| Ahuja Ajay | Chief Medical Officer | Award / Grant | 318,200 | — | — | 318,200 | Nov 11, 2025 |
| Singh Sanjay R | EVP Technical Operations | Tax Withholding | 17,071 | $5.59 | $95,427 | 473,988 | Oct 31, 2025 |
| Tross Stuart A | Chief People & Workpl Officer | Sale | 47,000 | $5.34 | $250,980 | 1,032,013 | Sep 16, 2025 |
| Tross Stuart A | Chief People & Workpl Officer | Award / Grant | 12,755 | $3.92 | $50,000 | 1,079,013 | Aug 5, 2025 |
| Binder Steven B. | — | Tax Withholding | 19,383 | $3.85 | $74,625 | 905,875 | Jul 16, 2025 |
| BLANK BURKHARD | EVP Chief Medical Officer | Tax Withholding | 9,556 | $3.85 | $36,791 | 460,791 | Jul 15, 2025 |
| Singh Sanjay R | EVP Technical Operations | Tax Withholding | 15,450 | $3.85 | $59,483 | 491,059 | Jul 15, 2025 |
| Castagna Michael | Chief Executive Officer | Tax Withholding | 111,275 | $3.85 | $428,409 | 2,504,792 | Jul 15, 2025 |
| Tross Stuart A | Chief People & Workpl Officer | Tax Withholding | 28,057 | $3.85 | $108,019 | 1,066,258 | Jul 15, 2025 |
| Thomson David | EVP Genl Counsel & Secretary | Sale | 7,466 | $3.94 | $29,416 | 841,719 | Jul 15, 2025 |
| Sabella Lauren M | EVP Operations | Tax Withholding | 11,896 | $3.85 | $45,800 | 349,841 | Jul 15, 2025 |
| Prentiss Christopher B | Chief Financial Officer | Tax Withholding | 11,540 | $3.85 | $44,429 | 343,854 | Jul 15, 2025 |
| Binder Steven B. | — | Sale | 64,085 | $4.00 | $256,340 | 925,258 | Jun 10, 2025 |
| BLANK BURKHARD | EVP Chief Medical Officer | Tax Withholding | 15,630 | $4.12 | $64,396 | 465,124 | May 27, 2025 |
| Binder Steven B. | — | Tax Withholding | 5,190 | $4.37 | $22,680 | 1,001,421 | May 20, 2025 |
| Tross Stuart A | Chief People & Workpl Officer | Tax Withholding | 6,147 | $4.37 | $26,862 | 1,090,427 | May 19, 2025 |
| Castagna Michael | Chief Executive Officer | Tax Withholding | 26,114 | $4.37 | $114,118 | 2,612,934 | May 19, 2025 |
| Thomson David | EVP Genl Counsel & Secretary | Sale | 2,345 | $4.41 | $10,341 | 879,546 | May 19, 2025 |
| Castagna Michael | Chief Executive Officer | Award / Grant | 27,000 | $4.56 | $123,120 | 2,639,048 | May 14, 2025 |
| Marasco Dominic | Pres, Endocrine Business Unit | Award / Grant | 59,500 | — | — | 311,500 | May 14, 2025 |
| HOOPER ANTHONY C | — | Award / Grant | 25,000 | $4.56 | $114,000 | 201,153 | May 14, 2025 |
| Binder Steven B. | — | Award / Grant | 105,600 | — | — | 1,180,626 | May 13, 2025 |
| Singh Sanjay R | EVP Technical Operations | Award / Grant | 119,000 | — | — | 506,509 | May 13, 2025 |
| Prentiss Christopher B | Chief Financial Officer | Award / Grant | 119,000 | — | — | 353,193 | May 13, 2025 |
| Thomson David | EVP Genl Counsel & Secretary | Award / Grant | 119,000 | — | — | 891,427 | May 12, 2025 |
| Tross Stuart A | Chief People & Workpl Officer | Tax Withholding | 88,724 | $4.56 | $404,581 | 984,067 | May 12, 2025 |
| Castagna Michael | Chief Executive Officer | Award / Grant | 298,560 | — | — | 2,553,896 | May 12, 2025 |
| Castagna Michael | Chief Executive Officer | Other | 39,500 | — | — | 2,255,336 | Apr 4, 2025 |
| Sabella Lauren M | EVP Operations | Tax Withholding | 16,407 | $5.10 | $83,676 | 357,849 | Mar 27, 2025 |
| Marasco Dominic | Pres, Endocrine Business Unit | Award / Grant | 252,000 | — | — | 252,000 | Feb 12, 2025 |
| Binder Steven B. | — | Option Exercise | 67,536 | $1.47 | $99,278 | 1,142,562 | Nov 22, 2024 |
| Binder Steven B. | — | Option Exercise | 67,539 | $1.47 | $99,282 | 1,142,565 | Nov 15, 2024 |
| Tross Stuart A | Chief People & Workpl Officer | Sale | 55,000 | $7.34 | $403,700 | 967,191 | Nov 6, 2024 |
| Singh Sanjay R | EVP Technical Operations | Tax Withholding | 17,071 | $7.07 | $120,692 | 385,416 | Oct 31, 2024 |
| Tross Stuart A | Chief People & Workpl Officer | Sale | 25,000 | $6.26 | $156,500 | 1,022,191 | Sep 3, 2024 |
| Tross Stuart A | Chief People & Workpl Officer | Sale | 35,000 | $6.32 | $221,200 | 1,047,191 | Aug 30, 2024 |
| Binder Steven B. | EVP Special Projects | Tax Withholding | 20,779 | $5.38 | $111,791 | 1,080,081 | Aug 29, 2024 |
| Castagna Michael | Chief Executive Officer | Tax Withholding | 56,085 | $5.38 | $301,737 | 2,412,836 | Aug 28, 2024 |
| Tross Stuart A | Chief People & Workpl Officer | Tax Withholding | 20,779 | $5.38 | $111,791 | 1,127,191 | Aug 27, 2024 |
| Thomson David | EVP Genl Counsel & Secretary | Sale | 5,553 | $5.94 | $32,985 | 829,843 | Aug 27, 2024 |
| Sabella Lauren M | EVP Chief Operating Officer | Award / Grant | 722 | $3.09 | $2,231 | 376,073 | Jul 15, 2024 |
| Binder Steven B. | EVP Special Projects | Award / Grant | 800 | $3.09 | $2,472 | 1,115,353 | Jul 15, 2024 |
| Thomson David | EVP Genl Counsel & Secretary | Sale | 3,115 | $5.93 | $18,472 | 857,885 | Jul 15, 2024 |
| Singh Sanjay R | EVP Technical Operations | Tax Withholding | 5,372 | $5.83 | $31,319 | 402,487 | Jun 30, 2024 |