RESEARCH FRONTIERS INC

Ticker: REFR CUSIP: 760911107 Class: COM

JANE STREET GROUP, LLC's Holding History (CIK: 0001595888)

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

Q4 2025

Shares 15,091 Value ($000) $20 Avg Close $1.69 Range $1.26 - $2.70

Q3 2023

Shares 28,717 Value ($000) $31 Avg Close $1.51 Range $0.99 - $1.75

Q2 2023

Shares 58,835 Value ($000) $94 Avg Close $1.62 Range $1.42 - $1.85

Q3 2022

Shares 18,577 Value ($000) $40 Avg Close $2.04 Range $1.55 - $2.85

Q2 2020

Shares 36,211 Value ($000) $147 Avg Close $3.71 Range $1.66 - $5.70

Q4 2019

Shares 12,662 Value ($000) $38 Avg Close $3.21 Range $2.76 - $3.80

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	15,091	$20	$1.69	$1.26 - $2.70
Q3 2023	28,717	$31	$1.51	$0.99 - $1.75
Q2 2023	58,835	$94	$1.62	$1.42 - $1.85
Q3 2022	18,577	$40	$2.04	$1.55 - $2.85
Q2 2020	36,211	$147	$3.71	$1.66 - $5.70
Q4 2019	12,662	$38	$3.21	$2.76 - $3.80