SYSTEM1 INC

CUSIP: 87200P109 Class: Common Stock

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

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

Q1 2025
Shares 20,986 Value ($000) $8 Avg Close — Range —
Q4 2023
Shares 65,872 Value ($000) $146 Avg Close — Range —
Q2 2023
Shares 23,971 Value ($000) $108 Avg Close — Range —
Q1 2023
Shares 22,761 Value ($000) $98 Avg Close — Range —
Q4 2022
Shares 19,044 Value ($000) $89 Avg Close — Range —
Q3 2022
Shares 49,091 Value ($000) $309 Avg Close — Range —