MFRI INC

CUSIP: 552721102 Class: COMMON STOCK

RENAISSANCE TECHNOLOGIES LLC's Holding History (CIK: 0001037389)

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

Q4 2016
Shares 123,500 Value ($000) $1,000 Avg Close — Range —
Q3 2016
Shares 109,700 Value ($000) $840 Avg Close — Range —
Q2 2016
Shares 102,398 Value ($000) $764 Avg Close — Range —
Q1 2016
Shares 102,600 Value ($000) $718 Avg Close — Range —
Q4 2015
Shares 88,200 Value ($000) $577 Avg Close — Range —
Q3 2015
Shares 78,200 Value ($000) $402 Avg Close — Range —
Q2 2015
Shares 77,648 Value ($000) $470 Avg Close — Range —
Q1 2015
Shares 60,800 Value ($000) $380 Avg Close — Range —
Q4 2014
Shares 51,397 Value ($000) $360 Avg Close — Range —
Q3 2014
Shares 34,900 Value ($000) $332 Avg Close — Range —
Q2 2014
Shares 31,300 Value ($000) $357 Avg Close — Range —
Q1 2014
Shares 39,790 Value ($000) $542 Avg Close — Range —
Q4 2013
Shares 50,800 Value ($000) $729 Avg Close — Range —
Q3 2013
Shares 31,904 Value ($000) $364 Avg Close — Range —
Q2 2013
Shares 19,600 Value ($000) $223 Avg Close — Range —