CASTLE BIOSCIENCES INC

Ticker: CSTL CUSIP: 14843C105 Class: Common Stock

Avidity Partners Management LP's Holding History (CIK: 0001791827)

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

Q4 2020

Shares 150,000 Value ($000) $10,073 Avg Close $54.21 Range $43.37 - $78.39

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2020	150,000	$10,073	$54.21	$43.37 - $78.39