HERITAGE CRYSTAL CLEAN INC

CUSIP: 42726M106 Class: Common Stock

ESSEX INVESTMENT MANAGEMENT CO LLC's Holding History (CIK: 0000201772)

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

Q2 2023
Shares 147,188 Value ($000) $5,562 Avg Close — Range —
Q1 2023
Shares 134,015 Value ($000) $4,772 Avg Close — Range —
Q4 2022
Shares 122,578 Value ($000) $4 Avg Close — Range —
Q3 2022
Shares 71,124 Value ($000) $2,103 Avg Close — Range —
Q2 2022
Shares 69,181 Value ($000) $1,865 Avg Close — Range —
Q1 2022
Shares 66,858 Value ($000) $1,980 Avg Close — Range —
Q4 2021
Shares 63,773 Value ($000) $2,042 Avg Close — Range —
Q3 2021
Shares 58,836 Value ($000) $1,705 Avg Close — Range —
Q2 2021
Shares 59,211 Value ($000) $1,757 Avg Close — Range —
Q1 2021
Shares 64,431 Value ($000) $1,748 Avg Close — Range —
Q4 2020
Shares 71,230 Value ($000) $1,501 Avg Close — Range —