PERFORMANCE TECHNOLOGIES INC

CUSIP: 71376K102 Class: COM

DIMENSIONAL FUND ADVISORS LP's Holding History (CIK: 0000354204)

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

Q4 2013
Shares 897,257 Value ($000) $3,351 Avg Close — Range —
Q3 2013
Shares 885,540 Value ($000) $2,550 Avg Close — Range —
Q2 2013
Shares 882,043 Value ($000) $1,041 Avg Close — Range —