Binder Steven B. 4

What Happened Steven B. Binder, a director of MannKind Corp (MNKD), acquired 45,025 shares on February 26, 2026 via the partial vesting of a previously granted option. The filing reports the acquisition as an award/derivative transaction (code A) with an acquisition price of $0.00 (i.e., shares issued upon vesting rather than an open‑market purchase).

Key Details

• Transaction date: 2026-02-26; Filing date (Form 4): 2026-03-02 (filed within the typical two-business-day window).
• Transaction type/code: Award/Grant (A) — derivative shares issued upon partial vesting of an option.
• Shares acquired: 45,025; acquisition price listed: $0.00.
• Footnote: Option was originally granted August 24, 2017 and vests upon achievement of defined performance milestones; one milestone was met on 2/26/2026, triggering partial vesting.
• Shares owned after the transaction: Not specified in the information provided on this Form 4.
• No indication in the filing that the shares were sold immediately, that tax withholding occurred, or that a 10b5‑1 plan was used.

Context This was not an open‑market purchase or sale but the issuance of shares from a long‑dated option that vested after a performance milestone. Such award/vesting transactions reflect prior compensation arrangements rather than a contemporaneous buy/sell decision by the insider.