SG BLOCKS INC

CUSIP: 78418A505 Class: COM NEW

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

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

Q1 2021
Shares 110,297 Value ($000) $514 Avg Close — Range —
Q4 2020
Shares 71,428 Value ($000) $436 Avg Close — Range —