MFRI INC

CUSIP: 552721102 Class: COMMON STOCK

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q4 2016
Shares 12,387 Value ($000) $100 Avg Close — Range —
Q3 2016
Shares 11,666 Value ($000) $90 Avg Close — Range —
Q2 2016
Shares 11,602 Value ($000) $87 Avg Close — Range —
Q1 2016
Shares 11,602 Value ($000) $82 Avg Close — Range —
Q4 2015
Shares 11,602 Value ($000) $76 Avg Close — Range —
Q3 2015
Shares 11,602 Value ($000) $60 Avg Close — Range —
Q2 2015
Shares 10,964 Value ($000) $66 Avg Close — Range —
Q1 2015
Shares 12,328 Value ($000) $77 Avg Close — Range —
Q4 2014
Shares 13,131 Value ($000) $92 Avg Close — Range —
Q3 2014
Shares 13,369 Value ($000) $127 Avg Close — Range —
Q2 2014
Shares 15,988 Value ($000) $182 Avg Close — Range —
Q1 2014
Shares 13,078 Value ($000) $178 Avg Close — Range —
Q4 2013
Shares 52,419 Value ($000) $752 Avg Close — Range —
Q3 2013
Shares 13,226 Value ($000) $151 Avg Close — Range —
Q2 2013
Shares 16,894 Value ($000) $192 Avg Close — Range —