XENON PHARMACEUTICALS INC

Ticker: XENE CUSIP: 98420N105 Class: Common Stock

DEERFIELD MANAGEMENT COMPANY, L.P.'s Holding History (CIK: 0001009258)

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

Q4 2025
Shares 542,020 Value ($000) $24,293 Avg Close $42.00 Range $37.23 - $46.60
Q3 2025
Shares 542,020 Value ($000) $21,762 Avg Close $35.22 Range $30.00 - $40.35
Q2 2025
Shares 542,020 Value ($000) $16,965 Avg Close $32.62 Range $26.74 - $39.01