RESEARCH FRONTIERS INC

Ticker: REFR CUSIP: 760911107 Class: COM

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q4 2025
Shares 52,630 Value ($000) $69 Avg Close $1.69 Range $1.26 - $2.70
Q3 2025
Shares 51,894 Value ($000) $83 Avg Close $1.51 Range $1.21 - $1.97
Q2 2025
Shares 51,894 Value ($000) $85 Avg Close $1.47 Range $0.93 - $2.09
Q1 2025
Shares 51,894 Value ($000) $59 Avg Close $1.43 Range $1.10 - $1.86
Q4 2024
Shares 51,894 Value ($000) $89 Avg Close $1.96 Range $1.53 - $2.31
Q3 2024
Shares 53,121 Value ($000) $116 Avg Close $2.07 Range $1.79 - $2.39
Q2 2024
Shares 53,893 Value ($000) $99 Avg Close $1.75 Range $1.16 - $2.41
Q1 2024
Shares 54,004 Value ($000) $70 Avg Close $1.10 Range $0.93 - $1.57
Q4 2023
Shares 54,004 Value ($000) $55 Avg Close $1.04 Range $0.90 - $1.29
Q3 2023
Shares 57,278 Value ($000) $62 Avg Close $1.51 Range $0.99 - $1.75
Q2 2023
Shares 57,278 Value ($000) $92 Avg Close $1.62 Range $1.42 - $1.85
Q1 2023
Shares 57,458 Value ($000) $98 Avg Close $1.98 Range $1.68 - $2.30
Q4 2022
Shares 53,182 Value ($000) $102 Avg Close $2.28 Range $1.83 - $2.53
Q3 2022
Shares 53,182 Value ($000) $113 Avg Close $2.04 Range $1.55 - $2.85
Q2 2022
Shares 53,182 Value ($000) $93 Avg Close $1.81 Range $1.51 - $2.29
Q1 2022
Shares 56,231 Value ($000) $108 Avg Close $1.84 Range $1.34 - $2.45
Q4 2021
Shares 56,231 Value ($000) $97 Avg Close $2.14 Range $1.65 - $2.63
Q3 2021
Shares 56,348 Value ($000) $144 Avg Close $2.31 Range $1.76 - $3.18
Q2 2021
Shares 56,348 Value ($000) $134 Avg Close $2.49 Range $2.01 - $3.15
Q1 2021
Shares 286,026 Value ($000) $813 Avg Close $3.88 Range $2.65 - $5.66
Q4 2020
Shares 311,313 Value ($000) $875 Avg Close $2.82 Range $2.50 - $3.57
Q3 2020
Shares 309,420 Value ($000) $835 Avg Close $2.90 Range $2.01 - $4.11
Q2 2020
Shares 113,273 Value ($000) $461 Avg Close $3.71 Range $1.66 - $5.70
Q1 2020
Shares 59,992 Value ($000) $141 Avg Close $3.20 Range $2.20 - $4.24
Q4 2019
Shares 60,329 Value ($000) $182 Avg Close $3.21 Range $2.76 - $3.80
Q3 2019
Shares 55,659 Value ($000) $178 Avg Close $3.80 Range $2.70 - $5.38
Q2 2019
Shares 38,915 Value ($000) $129 Avg Close $2.83 Range $1.97 - $3.71
Q1 2019
Shares 41,130 Value ($000) $89 Avg Close $2.31 Range $1.48 - $3.49
Q4 2018
Shares 41,130 Value ($000) $65 Avg Close $1.45 Range $1.10 - $1.95
Q3 2018
Shares 43,389 Value ($000) $68 Avg Close $1.06 Range $0.78 - $1.83
Q2 2018
Shares 43,389 Value ($000) $36 Avg Close $0.91 Range $0.60 - $1.20
Q1 2018
Shares 43,389 Value ($000) $43 Avg Close $0.97 Range $0.85 - $1.37
Q4 2017
Shares 43,389 Value ($000) $45 Avg Close $1.09 Range $0.86 - $1.46
Q3 2017
Shares 43,389 Value ($000) $52 Avg Close $1.20 Range $1.01 - $1.35
Q2 2017
Shares 43,389 Value ($000) $56 Avg Close $1.26 Range $0.98 - $1.55
Q1 2017
Shares 43,389 Value ($000) $61 Avg Close $1.72 Range $1.25 - $2.15
Q4 2016
Shares 39,995 Value ($000) $73 Avg Close $2.07 Range $1.65 - $2.62
Q3 2016
Shares 38,736 Value ($000) $101 Avg Close $3.14 Range $2.56 - $3.82
Q2 2016
Shares 38,687 Value ($000) $141 Avg Close $4.20 Range $3.30 - $5.03
Q1 2016
Shares 32,867 Value ($000) $150 Avg Close $4.48 Range $4.04 - $5.20
Q4 2015
Shares 32,867 Value ($000) $172 Avg Close $5.02 Range $4.34 - $5.40
Q3 2015
Shares 32,867 Value ($000) $166 Avg Close $5.31 Range $4.55 - $5.97
Q2 2015
Shares 31,962 Value ($000) $171 Avg Close $5.89 Range $5.31 - $6.39
Q1 2015
Shares 36,932 Value ($000) $225 Avg Close $5.20 Range $4.91 - $6.63
Q4 2014
Shares 40,105 Value ($000) $205 Avg Close $5.06 Range $4.50 - $5.70
Q3 2014
Shares 40,105 Value ($000) $231 Avg Close $5.26 Range $4.58 - $6.09
Q2 2014
Shares 40,224 Value ($000) $244 Avg Close $5.34 Range $4.28 - $6.24
Q1 2014
Shares 40,418 Value ($000) $210 Avg Close $6.33 Range $5.17 - $7.60
Q4 2013
Shares 40,040 Value ($000) $232 Avg Close $5.44 Range $4.18 - $7.64
Q3 2013
Shares 43,124 Value ($000) $183 Avg Close $4.17 Range $3.75 - $5.15
Q2 2013
Shares 44,214 Value ($000) $176 Avg Close $3.96 Range $3.31 - $4.91