Vor Biopharma (VOR) — RA Capital (10% Owner) Exercises Options

What Happened RA Capital Management, L.P. — reported as a 10% owner — exercised stock options on behalf of its RA Capital Healthcare Fund. On 2026-08-24 the filing shows an exercise (transaction code M) that resulted in the acquisition of 1,500 Vor Biopharma (VOR) shares at an exercise price of $3.74 per share, for a cash outlay of $5,604. The filing also reports a related disposition entry for 1,500 shares at $0 (derivative), reflecting the transfer of the underlying shares to the Fund/Adviser arrangement rather than an open-market sale.

Key Details

• Transaction date: 2026-08-24; Form 4 filed 2026-08-26 (timely).
• Acquired: 1,500 shares via option exercise at $3.74 each = $5,604.
• Disposed: 1,500 shares (derivative) reported at $0 — reflects internal transfer to the Fund/Adviser, not a cash sale.
• Footnotes: (F1) 1-for-20 reverse split on 9/18/2025 applied to option terms; (F3–F5) option was granted to Joshua Resnick for the benefit of the Fund, Resnick must turn over shares to the Adviser to offset advisory fees, the option was immediately exercisable, and shares are held directly by the Fund (F4). Reporting persons disclaim beneficial ownership except for pecuniary interest (F2).
• Shares owned after transaction: not specified in the filing.

Context Transaction code M denotes an option exercise. The paired $0 disposition and the footnotes indicate the exercised shares were transferred within the adviser/fund arrangement (used to offset advisory fees) rather than sold on the market — this is an institutional internal transfer, not typical executive buying or selling. As a 10% institutional owner, this filing documents fund-level activity and related administrative mechanics rather than an individual executive trading on personal account.