CASTLE BIOSCIENCES INC
For the period ended Sep 30, 2026. Filed Nov 5, 2026.
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Sep 30, 2026 · Filed Nov 5, 2026
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Other Information
Item 5. Other Information.
Insider Trading Arrangements
On September 14, 2026, Frank Stokes, our Chief Financial Officer, adopted a Rule 10b5-1 trading arrangement providing for the sale from time to time of up to 100% of the shares of our common stock issued upon the settlement of 50,854 shares of RSUs, less the number of shares withheld to cover tax withholding obligations in connection with the vesting and settlement of such RSUs. The trading arrangement is intended to satisfy the affirmative defense in Rule 10b5-1(c). The duration of the trading arrangement is estimated to be from December 14, 2026 until the earlier of all transactions under the trading arrangement being completed or December 15, 2027.
No other directors or officers, as defined in Rule 16a-1(f), adopted and/orterminated a Rule 10b5-1 trading arrangement or a non-Rule 10b5-1 trading arrangement, as defined in Regulation S-K Item 408, for the three months ended September 30, 2026.
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