XENON PHARMACEUTICALS INC

Ticker: XENE CUSIP: 98420N105 Class: Common Stock

DIMENSIONAL FUND ADVISORS LP's Holding History (CIK: 0000354204)

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

Q4 2025

Shares 452,147 Value ($000) $20,261 Avg Close $42.00 Range $37.23 - $46.60

Q3 2025

Shares 454,023 Value ($000) $18,222 Avg Close $35.22 Range $30.00 - $40.35

Q2 2025

Shares 379,988 Value ($000) $11,900 Avg Close $32.62 Range $26.74 - $39.01

Q1 2025

Shares 214,860 Value ($000) $7,211 Avg Close $37.97 Range $32.70 - $42.23

Q4 2024

Shares 259,970 Value ($000) $10,188 Avg Close $41.35 Range $37.34 - $46.00

Q3 2024

Shares 299,865 Value ($000) $11,803 Avg Close $40.32 Range $35.73 - $44.74

Q2 2024

Shares 436,460 Value ($000) $17,011 Avg Close $39.97 Range $35.53 - $44.37

Q1 2024

Shares 410,207 Value ($000) $17,659 Avg Close $46.00 Range $42.08 - $50.99

Q4 2023

Shares 402,668 Value ($000) $18,547 Avg Close $35.33 Range $27.98 - $47.00

Q3 2023

Shares 427,125 Value ($000) $14,593 Avg Close $37.40 Range $33.93 - $40.13

Q2 2023

Shares 262,107 Value ($000) $10,091 Avg Close $39.75 Range $33.60 - $43.75

Q1 2023

Shares 65,266 Value ($000) $2,336 Avg Close $36.94 Range $32.64 - $41.25

Q4 2022

Shares 314,673 Value ($000) $12 Avg Close $36.42 Range $31.79 - $40.06

Q3 2022

Shares 342,031 Value ($000) $12,348 Avg Close $35.95 Range $28.98 - $41.39

Q2 2022

Shares 174,962 Value ($000) $5,322 Avg Close $30.24 Range $24.94 - $35.69

Q1 2022

Shares 293,729 Value ($000) $8,979 Avg Close $29.94 Range $24.60 - $33.45

Q4 2021

Shares 291,946 Value ($000) $9,120 Avg Close $29.88 Range $15.29 - $36.42

Q3 2021

Shares 151,197 Value ($000) $2,310 Avg Close $17.38 Range $14.65 - $19.64

Q2 2021

Shares 15,010 Value ($000) $279 Avg Close $18.43 Range $16.30 - $21.52

Q2 2019

Shares 11,120 Value ($000) $110 Avg Close $9.57 Range $8.22 - $11.34

Q1 2019

Shares 11,120 Value ($000) $113 Avg Close $8.48 Range $6.17 - $10.74

Q4 2018

Shares 11,120 Value ($000) $70 Avg Close $8.89 Range $5.41 - $13.49

Q3 2018

Shares 11,120 Value ($000) $147 Avg Close $11.59 Range $8.85 - $15.92

Q2 2018

Shares 11,120 Value ($000) $102 Avg Close $6.21 Range $4.50 - $11.00

Q1 2018

Shares 11,120 Value ($000) $54 Avg Close $3.70 Range $2.70 - $5.05

Q4 2017

Shares 11,120 Value ($000) $31 Avg Close $2.72 Range $2.10 - $3.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	452,147	$20,261	$42.00	$37.23 - $46.60
Q3 2025	454,023	$18,222	$35.22	$30.00 - $40.35
Q2 2025	379,988	$11,900	$32.62	$26.74 - $39.01
Q1 2025	214,860	$7,211	$37.97	$32.70 - $42.23
Q4 2024	259,970	$10,188	$41.35	$37.34 - $46.00
Q3 2024	299,865	$11,803	$40.32	$35.73 - $44.74
Q2 2024	436,460	$17,011	$39.97	$35.53 - $44.37
Q1 2024	410,207	$17,659	$46.00	$42.08 - $50.99
Q4 2023	402,668	$18,547	$35.33	$27.98 - $47.00
Q3 2023	427,125	$14,593	$37.40	$33.93 - $40.13
Q2 2023	262,107	$10,091	$39.75	$33.60 - $43.75
Q1 2023	65,266	$2,336	$36.94	$32.64 - $41.25
Q4 2022	314,673	$12	$36.42	$31.79 - $40.06
Q3 2022	342,031	$12,348	$35.95	$28.98 - $41.39
Q2 2022	174,962	$5,322	$30.24	$24.94 - $35.69
Q1 2022	293,729	$8,979	$29.94	$24.60 - $33.45
Q4 2021	291,946	$9,120	$29.88	$15.29 - $36.42
Q3 2021	151,197	$2,310	$17.38	$14.65 - $19.64
Q2 2021	15,010	$279	$18.43	$16.30 - $21.52
Q2 2019	11,120	$110	$9.57	$8.22 - $11.34
Q1 2019	11,120	$113	$8.48	$6.17 - $10.74
Q4 2018	11,120	$70	$8.89	$5.41 - $13.49
Q3 2018	11,120	$147	$11.59	$8.85 - $15.92
Q2 2018	11,120	$102	$6.21	$4.50 - $11.00
Q1 2018	11,120	$54	$3.70	$2.70 - $5.05
Q4 2017	11,120	$31	$2.72	$2.10 - $3.50