LUFKIN INDS INC

CUSIP: 549764108 Class: COM

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q2 2013
Shares 59,117 Value ($000) $5,230 Avg Close — Range —
Q1 2013
Shares 58,420 Value ($000) $3,879 Avg Close — Range —