ALDEYRA THERAPEUTICS INC

Ticker: ALDX CUSIP: 01438T106 Class: Common Stock

DRW Securities, LLC's Holding History (CIK: 0001481986)

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

Q3 2018

Shares 40,681 Value ($000) $561 Avg Close $8.11 Range $6.75 - $16.70

Q2 2018

Shares 17,000 Value ($000) $135 Avg Close $7.98 Range $6.80 - $9.30

Q1 2018

Shares 12,000 Value ($000) $90 Avg Close $7.59 Range $6.25 - $8.95

Q4 2017

Shares 12,000 Value ($000) $82 Avg Close $6.59 Range $5.55 - $8.30

Q3 2017

Shares 12,000 Value ($000) $86 Avg Close $5.22 Range $3.90 - $11.90

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	40,681	$561	$8.11	$6.75 - $16.70
Q2 2018	17,000	$135	$7.98	$6.80 - $9.30
Q1 2018	12,000	$90	$7.59	$6.25 - $8.95
Q4 2017	12,000	$82	$6.59	$5.55 - $8.30
Q3 2017	12,000	$86	$5.22	$3.90 - $11.90