PERFORMANCE TECHNOLOGIES INC

CUSIP: 71376K102 Class: COM

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

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

Q4 2013
Shares 25,235 Value ($000) $94 Avg Close — Range —
Q3 2013
Shares 25,335 Value ($000) $73 Avg Close — Range —
Q2 2013
Shares 27,953 Value ($000) $35 Avg Close — Range —