ZYMEWORKS INC

Ticker: ZYME CUSIP: 98985Y108 Class: Common Stock

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q4 2025
Shares 8,841 Value ($000) $233 Avg Close $21.81 Range $16.00 - $28.49
Q3 2025
Shares 6,868 Value ($000) $117 Avg Close $14.31 Range $11.51 - $17.60
Q2 2025
Shares 100 Value ($000) $1 Avg Close $11.91 Range $9.03 - $13.44
Q1 2025
Shares 100 Value ($000) $1 Avg Close $13.64 Range $10.96 - $17.07
Q4 2024
Shares 800 Value ($000) $12 Avg Close $13.98 Range $11.99 - $17.70
Q3 2024
Shares 29,841 Value ($000) $375 Avg Close $10.89 Range $8.32 - $13.27
Q1 2024
Shares 8,472 Value ($000) $89 Avg Close $11.10 Range $9.64 - $13.14
Q3 2023
Shares 7,327 Value ($000) $46 Avg Close $7.39 Range $6.11 - $8.80
Q2 2023
Shares 1,483 Value ($000) $13 Avg Close $8.95 Range $7.75 - $10.35
Q4 2022
Shares 27,939 Value ($000) $220 Avg Close $7.03 Range $4.86 - $9.28