PSYCHEMEDICS CORP

CUSIP: 744375205 Class: COM NEW

North Star Investment Management Corp.'s Holding History (CIK: 0001342857)

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

Q1 2023
Shares 125 Value ($000) $1 Avg Close — Range —
Q4 2022
Shares 125 Value ($000) $1 Avg Close — Range —
Q3 2022
Shares 125 Value ($000) $1 Avg Close — Range —
Q2 2022
Shares 125 Value ($000) $1 Avg Close — Range —
Q1 2022
Shares 125 Value ($000) $1 Avg Close — Range —
Q4 2021
Shares 1,000 Value ($000) $7 Avg Close — Range —
Q3 2021
Shares 1,000 Value ($000) $8 Avg Close — Range —
Q2 2021
Shares 1,000 Value ($000) $7 Avg Close — Range —
Q1 2021
Shares 1,000 Value ($000) $6 Avg Close — Range —
Q4 2020
Shares 1,000 Value ($000) $5 Avg Close — Range —
Q3 2020
Shares 55,850 Value ($000) $246 Avg Close — Range —
Q2 2020
Shares 56,675 Value ($000) $314 Avg Close — Range —
Q1 2020
Shares 58,475 Value ($000) $354 Avg Close — Range —
Q4 2019
Shares 59,700 Value ($000) $546 Avg Close — Range —
Q3 2019
Shares 80,119 Value ($000) $730 Avg Close — Range —
Q2 2019
Shares 84,956 Value ($000) $857 Avg Close — Range —
Q1 2019
Shares 84,948 Value ($000) $1,192 Avg Close — Range —
Q4 2018
Shares 85,282 Value ($000) $1,353 Avg Close — Range —
Q3 2018
Shares 81,277 Value ($000) $1,529 Avg Close — Range —
Q2 2018
Shares 76,623 Value ($000) $1,474 Avg Close — Range —
Q1 2018
Shares 81,194 Value ($000) $1,734 Avg Close — Range —
Q4 2017
Shares 81,150 Value ($000) $1,668 Avg Close — Range —
Q3 2017
Shares 78,271 Value ($000) $1,443 Avg Close — Range —
Q2 2017
Shares 77,085 Value ($000) $1,923 Avg Close — Range —
Q1 2017
Shares 71,032 Value ($000) $1,424 Avg Close — Range —
Q4 2016
Shares 71,979 Value ($000) $1,776 Avg Close — Range —
Q3 2016
Shares 112,202 Value ($000) $2,224 Avg Close — Range —
Q2 2016
Shares 214,049 Value ($000) $2,941 Avg Close — Range —
Q1 2016
Shares 211,370 Value ($000) $2,906 Avg Close — Range —
Q4 2015
Shares 209,395 Value ($000) $2,123 Avg Close — Range —
Q3 2015
Shares 195,320 Value ($000) $1,963 Avg Close — Range —
Q2 2015
Shares 112,950 Value ($000) $1,675 Avg Close — Range —
Q1 2015
Shares 112,700 Value ($000) $1,870 Avg Close — Range —
Q4 2014
Shares 107,200 Value ($000) $1,624 Avg Close — Range —
Q3 2014
Shares 106,475 Value ($000) $1,508 Avg Close — Range —
Q2 2014
Shares 97,650 Value ($000) $1,383 Avg Close — Range —
Q1 2014
Shares 95,950 Value ($000) $1,644 Avg Close — Range —
Q4 2013
Shares 89,150 Value ($000) $1,310 Avg Close — Range —
Q3 2013
Shares 88,450 Value ($000) $1,172 Avg Close — Range —
Q2 2013
Shares 70,900 Value ($000) $761 Avg Close — Range —