CASTLE BIOSCIENCES INC

Ticker: CSTL CUSIP: 14843C105 Class: Common Stock

Ally Bridge Group (NY) LLC's Holding History (CIK: 0001822947)

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

Q1 2021

Shares 100,000 Value ($000) $6,846 Avg Close $75.16 Range $56.74 - $107.69

Q4 2020

Shares 210,000 Value ($000) $14,102 Avg Close $54.21 Range $43.37 - $78.39

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	100,000	$6,846	$75.16	$56.74 - $107.69
Q4 2020	210,000	$14,102	$54.21	$43.37 - $78.39