CASTLE BIOSCIENCES INC

Ticker: CSTL CUSIP: 14843C105 Class: Common Stock

XTX Topco Ltd's Holding History (CIK: 0001828301)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 22,125 Value ($000) $861 Avg Close $32.24 Range $22.05 - $42.17

Q2 2025

Shares 46,301 Value ($000) $945 Avg Close $18.51 Range $15.45 - $22.82

Q1 2025

Shares 19,628 Value ($000) $393 Avg Close $24.76 Range $18.70 - $32.74

Q2 2024

Shares 10,003 Value ($000) $218 Avg Close $22.28 Range $18.50 - $25.91

Q4 2023

Shares 14,145 Value ($000) $305 Avg Close $17.60 Range $12.07 - $22.66

Q1 2023

Shares 16,254 Value ($000) $369 Avg Close $24.43 Range $18.79 - $29.59

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	22,125	$861	$32.24	$22.05 - $42.17
Q2 2025	46,301	$945	$18.51	$15.45 - $22.82
Q1 2025	19,628	$393	$24.76	$18.70 - $32.74
Q2 2024	10,003	$218	$22.28	$18.50 - $25.91
Q4 2023	14,145	$305	$17.60	$12.07 - $22.66
Q1 2023	16,254	$369	$24.43	$18.79 - $29.59