Thomson David
Thomson David is a corporate insider (EVP Genl Counsel & Secretary) at MANNKIND CORP (MNKD) filing SEC Form 4 transactions. 287 transactions, totaling $0 in purchases and $8,644,349 in sales. Source: SEC EDGAR.
David Thomson's largest transaction in this window came on December 2, 2025: 147,780 shares sold at $5.57, following same-day option exercises across five separate tranches (87,780, 60,000, and three batches of 20,000 shares) — his biggest single-day sale by far, and the highest price point in his recent MannKind record. Every other sale in the window came in well below that level: $4.41 in May 2025, $3.94 in July 2025, $3.29 in May 2026, and $4.05 in July 2026. Thomson has sold MannKind stock in every one of 287 transactions on record — never a single purchase — and this December sale is the clearest case of monetizing into a genuine price high.
Companies
Transaction History
Source: SEC EDGAR Form 4 insider transaction filings.
Company | Type | Shares | Price | Value | Shares After | Date | SEC |
|---|---|---|---|---|---|---|---|
MANNKIND CORP MNKD | Sale | 24,109 | $4.05 | $98K | 797,554 | 7/17/2026 Filed: 7/15/2026 | Filing → |
MANNKIND CORP MNKD | Exercise | 93,790 | - | - | 0 | 7/15/2026 Filed: 7/15/2026 | Filing → |
MANNKIND CORP MNKD | Tax Payment | 16,378 | $4.09 | $67K | 821,663 | 7/15/2026 Filed: 7/15/2026 | Filing → |
MANNKIND CORP MNKD | Tax Payment | 17,754 | $4.09 | $73K | 838,041 | 7/15/2026 Filed: 7/15/2026 | Filing → |
MANNKIND CORP MNKD | Tax Payment | 12,662 | $4.09 | $52K | 855,795 | 7/15/2026 Filed: 7/15/2026 | Filing → |
MANNKIND CORP MNKD | Tax Payment | 51,632 | $4.09 | $211K | 868,457 | 7/15/2026 Filed: 7/15/2026 | Filing → |
MANNKIND CORP MNKD | Exercise | 93,790 | - | - | 920,089 | 7/15/2026 Filed: 7/15/2026 | Filing → |
MANNKIND CORP MNKD | Sale | 3,033 | $3.29 | $10K | 826,299 | 5/12/2026 Filed: 5/11/2026 | Filing → |
MANNKIND CORP MNKD | Tax Payment | 12,387 | $3.52 | $44K | 829,332 | 5/11/2026 Filed: 5/11/2026 | Filing → |
MANNKIND CORP MNKD | Award | 217,000 | $2.44 | $529K | 217,000 | 3/23/2026 Filed: 3/23/2026 | Filing → |
MANNKIND CORP MNKD | Award | 221,000 | - | - | 221,000 | 3/23/2026 Filed: 3/23/2026 | Filing → |
MANNKIND CORP MNKD | Award | 37,525 | $1.42 | $53K | 37,525 | 2/26/2026 Filed: 2/26/2026 | Filing → |
MANNKIND CORP MNKD | Award | 20,000 | $4.55 | $91K | 20,000 | 2/26/2026 Filed: 2/26/2026 | Filing → |
MANNKIND CORP MNKD | Exercise | 87,780 | - | - | 0 | 12/2/2025 Filed: 12/4/2025 | Filing → |
MANNKIND CORP MNKD | Exercise | 20,000 | - | - | 0 | 12/2/2025 Filed: 12/4/2025 | Filing → |
MANNKIND CORP MNKD | Exercise | 20,000 | - | - | 0 | 12/2/2025 Filed: 12/4/2025 | Filing → |
MANNKIND CORP MNKD | Exercise | 20,000 | - | - | 0 | 12/2/2025 Filed: 12/4/2025 | Filing → |
MANNKIND CORP MNKD | Sale | 147,780 | $5.57 | $823K | 841,719 | 12/2/2025 Filed: 12/4/2025 | Filing → |
MANNKIND CORP MNKD | Exercise | 87,780 | $4.60 | $404K | 989,499 | 12/2/2025 Filed: 12/4/2025 | Filing → |
MANNKIND CORP MNKD | Exercise | 60,000 | $4.55 | $273K | 901,719 | 12/2/2025 Filed: 12/4/2025 | Filing → |
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