RESEARCH FRONTIERS INC

Ticker: REFR CUSIP: 760911107 Class: COM

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

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

Q2 2024
Shares 161 Value ($000) $0 Avg Close $1.75 Range $1.16 - $2.41
Q1 2024
Shares 2,300 Value ($000) $0 Avg Close $1.10 Range $0.93 - $1.57
Q4 2023
Shares 3,818 Value ($000) $0 Avg Close $1.04 Range $0.90 - $1.29
Q3 2023
Shares 95 Value ($000) $0 Avg Close $1.51 Range $0.99 - $1.75
Q2 2023
Shares 100 Value ($000) $0 Avg Close $1.62 Range $1.42 - $1.85
Q1 2021
Shares 15,113 Value ($000) $0 Avg Close $3.88 Range $2.65 - $5.66
Q4 2020
Shares 15,752 Value ($000) $44 Avg Close $2.82 Range $2.50 - $3.57
Q3 2020
Shares 15,577 Value ($000) $42 Avg Close $2.90 Range $2.01 - $4.11
Q2 2020
Shares 14,670 Value ($000) $59 Avg Close $3.71 Range $1.66 - $5.70
Q1 2020
Shares 13,624 Value ($000) $31 Avg Close $3.20 Range $2.20 - $4.24
Q4 2019
Shares 23,975 Value ($000) $72 Avg Close $3.21 Range $2.76 - $3.80
Q3 2019
Shares 9,721 Value ($000) $31 Avg Close $3.80 Range $2.70 - $5.38
Q2 2019
Shares 608 Value ($000) $2 Avg Close $2.83 Range $1.97 - $3.71
Q1 2019
Shares 1,195 Value ($000) $2 Avg Close $2.31 Range $1.48 - $3.49
Q3 2018
Shares 18 Value ($000) $0 Avg Close $1.06 Range $0.78 - $1.83
Q3 2017
Shares 65 Value ($000) $0 Avg Close $1.20 Range $1.01 - $1.35
Q3 2015
Shares 14,295 Value ($000) $72 Avg Close $5.31 Range $4.55 - $5.97