RESEARCH FRONTIERS INC

Ticker: REFR CUSIP: 760911107 Class: COM

TWO SIGMA SECURITIES, LLC's Holding History (CIK: 0001450144)

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

Q4 2025

Shares 22,874 Value ($000) $30 Avg Close $1.69 Range $1.26 - $2.70

Q1 2025

Shares 11,093 Value ($000) $13 Avg Close $1.43 Range $1.10 - $1.86

Q3 2024

Shares 10,500 Value ($000) $23 Avg Close $2.07 Range $1.79 - $2.39

Q2 2024

Shares 12,040 Value ($000) $22 Avg Close $1.75 Range $1.16 - $2.41

Q3 2017

Shares 13,800 Value ($000) $16 Avg Close $1.20 Range $1.01 - $1.35

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	22,874	$30	$1.69	$1.26 - $2.70
Q1 2025	11,093	$13	$1.43	$1.10 - $1.86
Q3 2024	10,500	$23	$2.07	$1.79 - $2.39
Q2 2024	12,040	$22	$1.75	$1.16 - $2.41
Q3 2017	13,800	$16	$1.20	$1.01 - $1.35