PYROGENESIS CDA INC

CUSIP: 74734T104 Class: COM

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

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

Q1 2023
Shares 1 Value ($000) $0 Avg Close — Range —
Q4 2022
Shares 4,459 Value ($000) $3 Avg Close — Range —
Q3 2022
Shares 4,459 Value ($000) $5 Avg Close — Range —
Q2 2022
Shares 5,232 Value ($000) $10 Avg Close — Range —
Q1 2022
Shares 19,531 Value ($000) $49 Avg Close — Range —
Q4 2021
Shares 10,731 Value ($000) $28 Avg Close — Range —