Thomson David 4
4 · MANNKIND CORP · Filed May 13, 2026
Research Summary
AI-generated summary of this filing
MannKind (MNKD) EVP David Thomson Sells Shares
What Happened
David Thomson, Executive Vice President, General Counsel & Secretary of MannKind (MNKD), disposed of a total of 15,420 shares in two transactions. On 2026-05-11, 12,387 shares were withheld to cover tax withholding obligations related to vested restricted stock units (12,387 @ $3.52 = $43,602). On 2026-05-12, he sold 3,033 shares in the open market under a Rule 10b5-1 plan at a weighted average price of $3.29 (range $3.25–$3.34), generating $9,979. Combined proceeds were about $53,581. These were disposals (tax withholding and a planned sale), not purchases.
Key Details
- Transaction dates/prices:
- 2026-05-11: 12,387 shares withheld to satisfy tax obligations at $3.52 each; proceeds shown as $43,602 (code F).
- 2026-05-12: 3,033 shares sold in open market; weighted avg price $3.29 (range $3.25–$3.34); proceeds $9,979 (code S).
- Total shares disposed: 15,420; total proceeds ≈ $53,581.
- Shares owned after the transactions: Not disclosed in the filing.
- Footnotes:
- F1: Withheld shares paid tax withholding on RSUs originally granted May 10, 2022.
- F2: The May 12 sale occurred under a Rule 10b5-1 trading plan established Aug 27, 2025.
- F3: Weighted average sale price $3.29; range $3.25–$3.34; breakdown by price available upon request.
- Filing: Form 4 filed 2026-05-13 for transactions on May 11–12, 2026 (timely).
Context
Withholding shares to cover taxes on vested RSUs is a routine, non-discretionary transaction and is distinct from a voluntary market sell driven by sentiment. The open-market sale was executed under a pre-established 10b5-1 plan, which typically schedules trades in advance. Both actions are disposals and do not indicate insider purchases or a new ownership increase.
Insider Transaction Report
- Tax Payment
Common Stock, $0.01 Par Value
[F1]2026-05-11$3.52/sh−12,387$43,602→ 829,332 total - Sale
Common Stock, $0.01 Par Value
[F2][F3]2026-05-12$3.29/sh−3,033$9,979→ 826,299 total
Footnotes (3)
- [F1]Represents shares withheld to pay tax withholding obligations due on the date of vesting of the Restricted Stock Units originally granted on May 10, 2022.
- [F2]Transaction occurred pursuant to Rule 10b5-1 Plan established August 27, 2025.
- [F3]The weighted average sales price of the reported transaction was $3.29 based on a range of prices between $3.25 and $3.34. Upon request by the SEC staff, the Issuer, or any security holder of the Issuer, full information regarding the number of shares sold at each separate price will be provided.