ARIDIS PHARMACEUTICALS INC

Ticker: ARDS CUSIP: 040334104 Class: COMMON STOCK

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

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

Q2 2023

Shares 2,337 Value ($000) $1 Avg Close $0.23 Range $0.15 - $0.54

Q1 2023

Shares 1,237 Value ($000) $0 Avg Close $0.73 Range $0.30 - $1.75

Q4 2022

Shares 3,202 Value ($000) $4 Avg Close $0.97 Range $0.79 - $1.31

Q3 2022

Shares 18,499 Value ($000) $17 Avg Close $1.56 Range $0.68 - $2.77

Q2 2022

Shares 21,536 Value ($000) $24 Avg Close $1.24 Range $0.88 - $1.77

Q1 2022

Shares 27,066 Value ($000) $48 Avg Close $1.89 Range $1.13 - $2.94

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2023	2,337	$1	$0.23	$0.15 - $0.54
Q1 2023	1,237	$0	$0.73	$0.30 - $1.75
Q4 2022	3,202	$4	$0.97	$0.79 - $1.31
Q3 2022	18,499	$17	$1.56	$0.68 - $2.77
Q2 2022	21,536	$24	$1.24	$0.88 - $1.77
Q1 2022	27,066	$48	$1.89	$1.13 - $2.94