XENON PHARMACEUTICALS INC

Ticker: XENE CUSIP: 98420N105 Class: Common Stock

SUVRETTA CAPITAL MANAGEMENT, LLC's Holding History (CIK: 0001569064)

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

Q1 2022

Shares 692,000 Value ($000) $21,154 Avg Close $29.94 Range $24.60 - $33.45

Q4 2021

Shares 692,000 Value ($000) $21,618 Avg Close $29.88 Range $15.29 - $36.42

Q3 2021

Shares 1,158,961 Value ($000) $17,709 Avg Close $17.38 Range $14.65 - $19.64

Q2 2021

Shares 594,111 Value ($000) $11,062 Avg Close $18.43 Range $16.30 - $21.52

Q1 2021

Shares 440,064 Value ($000) $7,877 Avg Close $16.95 Range $13.23 - $21.94

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2022	692,000	$21,154	$29.94	$24.60 - $33.45
Q4 2021	692,000	$21,618	$29.88	$15.29 - $36.42
Q3 2021	1,158,961	$17,709	$17.38	$14.65 - $19.64
Q2 2021	594,111	$11,062	$18.43	$16.30 - $21.52
Q1 2021	440,064	$7,877	$16.95	$13.23 - $21.94