GRIDSUM HLDG INC

CUSIP: 398132100 Class: ADR

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

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

Q4 2020
Shares 5,000 Value ($000) $8 Avg Close — Range —
Q3 2020
Shares 5,000 Value ($000) $6 Avg Close — Range —
Q1 2020
Shares 9,877 Value ($000) $7 Avg Close — Range —
Q1 2019
Shares 6,009 Value ($000) $18 Avg Close — Range —
Q4 2018
Shares 7,009 Value ($000) $16 Avg Close — Range —
Q2 2018
Shares 35,931 Value ($000) $250 Avg Close — Range —
Q1 2018
Shares 62,682 Value ($000) $512 Avg Close — Range —