Disc Medicine (IRON) CLO Khara Rahul Sells 5,000 Shares

What Happened

• Khara Rahul, Chief Legal Officer of Disc Medicine (IRON), exercised stock options and sold shares on August 6, 2026. The filing shows an exercise/acquisition of 5,000 shares at $14.69 per share (cost $73,450) and an open-market sale of 5,000 shares at $80.00 per share (proceeds $400,000). The report also lists a disposition of 5,000 derivative shares at $0; the filing does not explain that $0 disposition.

Key Details

• Transaction date: August 6, 2026.
• Exercise: 5,000 shares exercised at $14.69 (total $73,450).
• Sale: 5,000 shares sold at $80.00 (total proceeds $400,000).
• Additional derivative disposition: 5,000 shares reported disposed at $0 (no explanation provided in filing).
• Notable footnotes: Transactions were effected under a Rule 10b5-1 trading plan adopted March 19, 2026 (F1). The filing also notes 151 shares purchased under the company ESPP on July 31, 2026 (F2) and that the option shares were fully vested and exercisable (F3).
• Shares owned after transaction: not specified in this Form 4.
• Timeliness: filing indicates a late report (transactionTimeliness = 'L').

Context

• This appears to be an exercise-and-sell event (option exercise followed by an immediate or same-day sale), commonly used by insiders to monetize vested options. Because the transactions were executed under a pre-established Rule 10b5-1 plan, they were likely pre-scheduled rather than ad-hoc trading decisions. The filing is factual about quantities, prices and the plan but does not state the reason for the $0 derivative disposition or the insider's remaining holdings.