ACORN ENERGY INC

CUSIP: 004848107 Class: COMMON STOCK

NORTHEAST INVESTMENT MANAGEMENT's Holding History (CIK: 0001082215)

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

Q1 2015
Shares 15,000 Value ($000) $8 Avg Close — Range —
Q4 2014
Shares 15,000 Value ($000) $12 Avg Close — Range —
Q3 2014
Shares 15,000 Value ($000) $23 Avg Close — Range —
Q2 2014
Shares 15,000 Value ($000) $35 Avg Close — Range —
Q1 2014
Shares 12,000 Value ($000) $41 Avg Close — Range —