OCZ TECHNOLOGY GROUP INC

CUSIP: 67086E303 Class: COMMON STOCK

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

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

Q3 2013
Shares 119,190 Value ($000) $155 Avg Close — Range —
Q2 2013
Shares 646,528 Value ($000) $938 Avg Close — Range —