GSE SYS INC

CUSIP: 36227K106 Class: COM

PERRITT CAPITAL MANAGEMENT INC's Holding History (CIK: 0001279342)

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

Q1 2021
Shares 123,000 Value ($000) $209 Avg Close — Range —
Q4 2020
Shares 123,000 Value ($000) $162 Avg Close — Range —
Q3 2020
Shares 125,000 Value ($000) $130 Avg Close — Range —
Q2 2020
Shares 147,000 Value ($000) $148 Avg Close — Range —
Q1 2020
Shares 151,000 Value ($000) $140 Avg Close — Range —
Q4 2019
Shares 152,068 Value ($000) $251 Avg Close — Range —
Q3 2019
Shares 157,068 Value ($000) $274 Avg Close — Range —
Q2 2019
Shares 190,622 Value ($000) $446 Avg Close — Range —