Cotton Rodney 4

What Happened
Rodney Cotton, a director of Castle Biosciences, was granted 11,766 restricted stock units (RSUs) on May 28, 2026. The award is reported at a grant price of $0.00 (derivative award); no cash changed hands at grant (total reported value $0). This is an equity compensation award rather than an open‑market purchase or sale.

Key Details

• Transaction date: 2026-05-28; Form 4 filed: 2026-06-01.
• Grant: 11,766 RSUs at $0.00 (derivative award — each RSU converts to one share upon vesting).
• Shares owned after the transaction: not specified in the filing.
• Footnotes: F1 — each RSU equals the right to one share of common stock; F2 — RSUs vest in full on the earlier of (a) the one‑year anniversary (May 28, 2027) or (b) the day before the next annual meeting of stockholders.
• Filing timeliness: The Form 4 was filed four days after the grant; insiders are generally required to file within two business days, so this filing appears later than the typical deadline.

Context
RSU grants are common compensation for directors and employees and do not by themselves indicate buying or selling sentiment. Value is realized only if/when the RSUs vest and are converted to shares (and any applicable tax withholding occurs). This transaction is a derivative compensation grant (not a market purchase or sale).