Form 4 Filing for Cole G Bradley

On May 22, 2026, Cole G Bradley, a director at CASTLE BIOSCIENCES INC, acquired 13,667 shares of Common Stock through the vesting of Restricted Stock Units (RSUs). The RSUs, each representing one share of Common Stock, vest in full on the earlier of the one-year anniversary of the grant date (May 22, 2026) or the day preceding the next Annual Meeting of Stockholders. Following this transaction, Mr. Bradley directly owns 32,976 shares of Common Stock. The transaction was reported on a Form 4 filing, with the signature date of May 27, 2026.