CASTLE BIOSCIENCES INC

Ticker: CSTL CUSIP: 14843C105 Class: Common Stock

DRIEHAUS CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000938206)

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

Q3 2021

Shares 358,200 Value ($000) $23,820 Avg Close $70.37 Range $57.64 - $78.58

Q2 2021

Shares 379,493 Value ($000) $27,828 Avg Close $66.05 Range $48.01 - $78.92

Q1 2021

Shares 378,912 Value ($000) $25,940 Avg Close $75.16 Range $56.74 - $107.69

Q4 2020

Shares 430,756 Value ($000) $28,925 Avg Close $54.21 Range $43.37 - $78.39

Q3 2020

Shares 443,486 Value ($000) $22,817 Avg Close $44.49 Range $36.15 - $52.41

Q2 2020

Shares 448,800 Value ($000) $16,915 Avg Close $34.17 Range $25.07 - $44.53

Q1 2020

Shares 406,817 Value ($000) $12,127 Avg Close $30.17 Range $21.01 - $36.39

Q4 2019

Shares 365,632 Value ($000) $12,567 Avg Close $24.45 Range $15.26 - $39.77

Q3 2019

Shares 280,401 Value ($000) $5,072 Avg Close $22.17 Range $17.10 - $28.50

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2021	358,200	$23,820	$70.37	$57.64 - $78.58
Q2 2021	379,493	$27,828	$66.05	$48.01 - $78.92
Q1 2021	378,912	$25,940	$75.16	$56.74 - $107.69
Q4 2020	430,756	$28,925	$54.21	$43.37 - $78.39
Q3 2020	443,486	$22,817	$44.49	$36.15 - $52.41
Q2 2020	448,800	$16,915	$34.17	$25.07 - $44.53
Q1 2020	406,817	$12,127	$30.17	$21.01 - $36.39
Q4 2019	365,632	$12,567	$24.45	$15.26 - $39.77
Q3 2019	280,401	$5,072	$22.17	$17.10 - $28.50