XENON PHARMACEUTICALS INC

Ticker: XENE CUSIP: 98420N105 Class: Common Stock

MPM BioImpact LLC's Holding History (CIK: 0001687078)

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

Q4 2025

Shares 485,620 Value ($000) $21,765 Avg Close $42.00 Range $37.23 - $46.60

Q3 2025

Shares 503,398 Value ($000) $20,211 Avg Close $35.22 Range $30.00 - $40.35

Q2 2025

Shares 323,398 Value ($000) $10,122 Avg Close $32.62 Range $26.74 - $39.01

Q1 2025

Shares 303,398 Value ($000) $10,179 Avg Close $37.97 Range $32.70 - $42.23

Q4 2024

Shares 197,212 Value ($000) $7,731 Avg Close $41.35 Range $37.34 - $46.00

Q3 2024

Shares 165,800 Value ($000) $6,528 Avg Close $40.32 Range $35.73 - $44.74

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	485,620	$21,765	$42.00	$37.23 - $46.60
Q3 2025	503,398	$20,211	$35.22	$30.00 - $40.35
Q2 2025	323,398	$10,122	$32.62	$26.74 - $39.01
Q1 2025	303,398	$10,179	$37.97	$32.70 - $42.23
Q4 2024	197,212	$7,731	$41.35	$37.34 - $46.00
Q3 2024	165,800	$6,528	$40.32	$35.73 - $44.74