GRAYBUG VISION INC

CUSIP: 38942Q103 Class: COM SHS

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

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

Q1 2022
Shares 2,462 Value ($000) $3 Avg Close — Range —
Q4 2021
Shares 5,162 Value ($000) $9 Avg Close — Range —
Q2 2021
Shares 15,870 Value ($000) $86 Avg Close — Range —